// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// Author: wan@google.com (Zhanyong Wan)
+
// Google Mock - a framework for writing C++ mock classes.
//
-// This file implements some commonly used argument matchers. More
+// The MATCHER* family of macros can be used in a namespace scope to
+// define custom matchers easily.
+//
+// Basic Usage
+// ===========
+//
+// The syntax
+//
+// MATCHER(name, description_string) { statements; }
+//
+// defines a matcher with the given name that executes the statements,
+// which must return a bool to indicate if the match succeeds. Inside
+// the statements, you can refer to the value being matched by 'arg',
+// and refer to its type by 'arg_type'.
+//
+// The description string documents what the matcher does, and is used
+// to generate the failure message when the match fails. Since a
+// MATCHER() is usually defined in a header file shared by multiple
+// C++ source files, we require the description to be a C-string
+// literal to avoid possible side effects. It can be empty, in which
+// case we'll use the sequence of words in the matcher name as the
+// description.
+//
+// For example:
+//
+// MATCHER(IsEven, "") { return (arg % 2) == 0; }
+//
+// allows you to write
+//
+// // Expects mock_foo.Bar(n) to be called where n is even.
+// EXPECT_CALL(mock_foo, Bar(IsEven()));
+//
+// or,
+//
+// // Verifies that the value of some_expression is even.
+// EXPECT_THAT(some_expression, IsEven());
+//
+// If the above assertion fails, it will print something like:
+//
+// Value of: some_expression
+// Expected: is even
+// Actual: 7
+//
+// where the description "is even" is automatically calculated from the
+// matcher name IsEven.
+//
+// Argument Type
+// =============
+//
+// Note that the type of the value being matched (arg_type) is
+// determined by the context in which you use the matcher and is
+// supplied to you by the compiler, so you don't need to worry about
+// declaring it (nor can you). This allows the matcher to be
+// polymorphic. For example, IsEven() can be used to match any type
+// where the value of "(arg % 2) == 0" can be implicitly converted to
+// a bool. In the "Bar(IsEven())" example above, if method Bar()
+// takes an int, 'arg_type' will be int; if it takes an unsigned long,
+// 'arg_type' will be unsigned long; and so on.
+//
+// Parameterizing Matchers
+// =======================
+//
+// Sometimes you'll want to parameterize the matcher. For that you
+// can use another macro:
+//
+// MATCHER_P(name, param_name, description_string) { statements; }
+//
+// For example:
+//
+// MATCHER_P(HasAbsoluteValue, value, "") { return abs(arg) == value; }
+//
+// will allow you to write:
+//
+// EXPECT_THAT(Blah("a"), HasAbsoluteValue(n));
+//
+// which may lead to this message (assuming n is 10):
+//
+// Value of: Blah("a")
+// Expected: has absolute value 10
+// Actual: -9
+//
+// Note that both the matcher description and its parameter are
+// printed, making the message human-friendly.
+//
+// In the matcher definition body, you can write 'foo_type' to
+// reference the type of a parameter named 'foo'. For example, in the
+// body of MATCHER_P(HasAbsoluteValue, value) above, you can write
+// 'value_type' to refer to the type of 'value'.
+//
+// We also provide MATCHER_P2, MATCHER_P3, ..., up to MATCHER_P$n to
+// support multi-parameter matchers.
+//
+// Describing Parameterized Matchers
+// =================================
+//
+// The last argument to MATCHER*() is a string-typed expression. The
+// expression can reference all of the matcher's parameters and a
+// special bool-typed variable named 'negation'. When 'negation' is
+// false, the expression should evaluate to the matcher's description;
+// otherwise it should evaluate to the description of the negation of
+// the matcher. For example,
+//
+// using testing::PrintToString;
+//
+// MATCHER_P2(InClosedRange, low, hi,
+// std::string(negation ? "is not" : "is") + " in range [" +
+// PrintToString(low) + ", " + PrintToString(hi) + "]") {
+// return low <= arg && arg <= hi;
+// }
+// ...
+// EXPECT_THAT(3, InClosedRange(4, 6));
+// EXPECT_THAT(3, Not(InClosedRange(2, 4)));
+//
+// would generate two failures that contain the text:
+//
+// Expected: is in range [4, 6]
+// ...
+// Expected: is not in range [2, 4]
+//
+// If you specify "" as the description, the failure message will
+// contain the sequence of words in the matcher name followed by the
+// parameter values printed as a tuple. For example,
+//
+// MATCHER_P2(InClosedRange, low, hi, "") { ... }
+// ...
+// EXPECT_THAT(3, InClosedRange(4, 6));
+// EXPECT_THAT(3, Not(InClosedRange(2, 4)));
+//
+// would generate two failures that contain the text:
+//
+// Expected: in closed range (4, 6)
+// ...
+// Expected: not (in closed range (2, 4))
+//
+// Types of Matcher Parameters
+// ===========================
+//
+// For the purpose of typing, you can view
+//
+// MATCHER_Pk(Foo, p1, ..., pk, description_string) { ... }
+//
+// as shorthand for
+//
+// template <typename p1_type, ..., typename pk_type>
+// FooMatcherPk<p1_type, ..., pk_type>
+// Foo(p1_type p1, ..., pk_type pk) { ... }
+//
+// When you write Foo(v1, ..., vk), the compiler infers the types of
+// the parameters v1, ..., and vk for you. If you are not happy with
+// the result of the type inference, you can specify the types by
+// explicitly instantiating the template, as in Foo<long, bool>(5,
+// false). As said earlier, you don't get to (or need to) specify
+// 'arg_type' as that's determined by the context in which the matcher
+// is used. You can assign the result of expression Foo(p1, ..., pk)
+// to a variable of type FooMatcherPk<p1_type, ..., pk_type>. This
+// can be useful when composing matchers.
+//
+// While you can instantiate a matcher template with reference types,
+// passing the parameters by pointer usually makes your code more
+// readable. If, however, you still want to pass a parameter by
+// reference, be aware that in the failure message generated by the
+// matcher you will see the value of the referenced object but not its
+// address.
+//
+// Explaining Match Results
+// ========================
+//
+// Sometimes the matcher description alone isn't enough to explain why
+// the match has failed or succeeded. For example, when expecting a
+// long string, it can be very helpful to also print the diff between
+// the expected string and the actual one. To achieve that, you can
+// optionally stream additional information to a special variable
+// named result_listener, whose type is a pointer to class
+// MatchResultListener:
+//
+// MATCHER_P(EqualsLongString, str, "") {
+// if (arg == str) return true;
+//
+// *result_listener << "the difference: "
+/// << DiffStrings(str, arg);
+// return false;
+// }
+//
+// Overloading Matchers
+// ====================
+//
+// You can overload matchers with different numbers of parameters:
+//
+// MATCHER_P(Blah, a, description_string1) { ... }
+// MATCHER_P2(Blah, a, b, description_string2) { ... }
+//
+// Caveats
+// =======
+//
+// When defining a new matcher, you should also consider implementing
+// MatcherInterface or using MakePolymorphicMatcher(). These
+// approaches require more work than the MATCHER* macros, but also
+// give you more control on the types of the value being matched and
+// the matcher parameters, which may leads to better compiler error
+// messages when the matcher is used wrong. They also allow
+// overloading matchers based on parameter types (as opposed to just
+// based on the number of parameters).
+//
+// MATCHER*() can only be used in a namespace scope as templates cannot be
+// declared inside of a local class.
+//
+// More Information
+// ================
+//
+// To learn more about using these macros, please search for 'MATCHER'
+// on
+// https://github.com/google/googletest/blob/master/docs/gmock_cook_book.md
+//
+// This file also implements some commonly used argument matchers. More
// matchers can be defined by the user implementing the
// MatcherInterface<T> interface if necessary.
+//
+// See googletest/include/gtest/gtest-matchers.h for the definition of class
+// Matcher, class MatcherInterface, and others.
-#ifndef GMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_
-#define GMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_
+#ifndef GOOGLEMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_
+#define GOOGLEMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_
#include <algorithm>
#include <cmath>
+#include <initializer_list>
#include <iterator>
#include <limits>
+#include <memory>
#include <ostream> // NOLINT
#include <sstream>
#include <string>
+#include <type_traits>
#include <utility>
#include <vector>
#include "gmock/internal/gmock-internal-utils.h"
#include "gmock/internal/gmock-port.h"
+#include "gmock/internal/gmock-pp.h"
#include "gtest/gtest.h"
-#if GTEST_HAS_STD_INITIALIZER_LIST_
-# include <initializer_list> // NOLINT -- must be after gtest.h
+// MSVC warning C5046 is new as of VS2017 version 15.8.
+#if defined(_MSC_VER) && _MSC_VER >= 1915
+#define GMOCK_MAYBE_5046_ 5046
+#else
+#define GMOCK_MAYBE_5046_
#endif
+GTEST_DISABLE_MSC_WARNINGS_PUSH_(
+ 4251 GMOCK_MAYBE_5046_ /* class A needs to have dll-interface to be used by
+ clients of class B */
+ /* Symbol involving type with internal linkage not defined */)
+
namespace testing {
// To implement a matcher Foo for type T, define:
// ownership management as Matcher objects can now be copied like
// plain values.
-// MatchResultListener is an abstract class. Its << operator can be
-// used by a matcher to explain why a value matches or doesn't match.
-//
-// TODO(wan@google.com): add method
-// bool InterestedInWhy(bool result) const;
-// to indicate whether the listener is interested in why the match
-// result is 'result'.
-class MatchResultListener {
- public:
- // Creates a listener object with the given underlying ostream. The
- // listener does not own the ostream, and does not dereference it
- // in the constructor or destructor.
- explicit MatchResultListener(::std::ostream* os) : stream_(os) {}
- virtual ~MatchResultListener() = 0; // Makes this class abstract.
-
- // Streams x to the underlying ostream; does nothing if the ostream
- // is NULL.
- template <typename T>
- MatchResultListener& operator<<(const T& x) {
- if (stream_ != NULL)
- *stream_ << x;
- return *this;
- }
-
- // Returns the underlying ostream.
- ::std::ostream* stream() { return stream_; }
-
- // Returns true iff the listener is interested in an explanation of
- // the match result. A matcher's MatchAndExplain() method can use
- // this information to avoid generating the explanation when no one
- // intends to hear it.
- bool IsInterested() const { return stream_ != NULL; }
-
- private:
- ::std::ostream* const stream_;
-
- GTEST_DISALLOW_COPY_AND_ASSIGN_(MatchResultListener);
-};
-
-inline MatchResultListener::~MatchResultListener() {
-}
-
-// An instance of a subclass of this knows how to describe itself as a
-// matcher.
-class MatcherDescriberInterface {
- public:
- virtual ~MatcherDescriberInterface() {}
-
- // Describes this matcher to an ostream. The function should print
- // a verb phrase that describes the property a value matching this
- // matcher should have. The subject of the verb phrase is the value
- // being matched. For example, the DescribeTo() method of the Gt(7)
- // matcher prints "is greater than 7".
- virtual void DescribeTo(::std::ostream* os) const = 0;
-
- // Describes the negation of this matcher to an ostream. For
- // example, if the description of this matcher is "is greater than
- // 7", the negated description could be "is not greater than 7".
- // You are not required to override this when implementing
- // MatcherInterface, but it is highly advised so that your matcher
- // can produce good error messages.
- virtual void DescribeNegationTo(::std::ostream* os) const {
- *os << "not (";
- DescribeTo(os);
- *os << ")";
- }
-};
-
-// The implementation of a matcher.
-template <typename T>
-class MatcherInterface : public MatcherDescriberInterface {
- public:
- // Returns true iff the matcher matches x; also explains the match
- // result to 'listener' if necessary (see the next paragraph), in
- // the form of a non-restrictive relative clause ("which ...",
- // "whose ...", etc) that describes x. For example, the
- // MatchAndExplain() method of the Pointee(...) matcher should
- // generate an explanation like "which points to ...".
- //
- // Implementations of MatchAndExplain() should add an explanation of
- // the match result *if and only if* they can provide additional
- // information that's not already present (or not obvious) in the
- // print-out of x and the matcher's description. Whether the match
- // succeeds is not a factor in deciding whether an explanation is
- // needed, as sometimes the caller needs to print a failure message
- // when the match succeeds (e.g. when the matcher is used inside
- // Not()).
- //
- // For example, a "has at least 10 elements" matcher should explain
- // what the actual element count is, regardless of the match result,
- // as it is useful information to the reader; on the other hand, an
- // "is empty" matcher probably only needs to explain what the actual
- // size is when the match fails, as it's redundant to say that the
- // size is 0 when the value is already known to be empty.
- //
- // You should override this method when defining a new matcher.
- //
- // It's the responsibility of the caller (Google Mock) to guarantee
- // that 'listener' is not NULL. This helps to simplify a matcher's
- // implementation when it doesn't care about the performance, as it
- // can talk to 'listener' without checking its validity first.
- // However, in order to implement dummy listeners efficiently,
- // listener->stream() may be NULL.
- virtual bool MatchAndExplain(T x, MatchResultListener* listener) const = 0;
-
- // Inherits these methods from MatcherDescriberInterface:
- // virtual void DescribeTo(::std::ostream* os) const = 0;
- // virtual void DescribeNegationTo(::std::ostream* os) const;
-};
-
// A match result listener that stores the explanation in a string.
class StringMatchResultListener : public MatchResultListener {
public:
StringMatchResultListener() : MatchResultListener(&ss_) {}
// Returns the explanation accumulated so far.
- internal::string str() const { return ss_.str(); }
+ std::string str() const { return ss_.str(); }
// Clears the explanation accumulated so far.
void Clear() { ss_.str(""); }
GTEST_DISALLOW_COPY_AND_ASSIGN_(StringMatchResultListener);
};
-namespace internal {
-
-struct AnyEq {
- template <typename A, typename B>
- bool operator()(const A& a, const B& b) const { return a == b; }
-};
-struct AnyNe {
- template <typename A, typename B>
- bool operator()(const A& a, const B& b) const { return a != b; }
-};
-struct AnyLt {
- template <typename A, typename B>
- bool operator()(const A& a, const B& b) const { return a < b; }
-};
-struct AnyGt {
- template <typename A, typename B>
- bool operator()(const A& a, const B& b) const { return a > b; }
-};
-struct AnyLe {
- template <typename A, typename B>
- bool operator()(const A& a, const B& b) const { return a <= b; }
-};
-struct AnyGe {
- template <typename A, typename B>
- bool operator()(const A& a, const B& b) const { return a >= b; }
-};
-
-// A match result listener that ignores the explanation.
-class DummyMatchResultListener : public MatchResultListener {
- public:
- DummyMatchResultListener() : MatchResultListener(NULL) {}
-
- private:
- GTEST_DISALLOW_COPY_AND_ASSIGN_(DummyMatchResultListener);
-};
-
-// A match result listener that forwards the explanation to a given
-// ostream. The difference between this and MatchResultListener is
-// that the former is concrete.
-class StreamMatchResultListener : public MatchResultListener {
- public:
- explicit StreamMatchResultListener(::std::ostream* os)
- : MatchResultListener(os) {}
-
- private:
- GTEST_DISALLOW_COPY_AND_ASSIGN_(StreamMatchResultListener);
-};
-
-// An internal class for implementing Matcher<T>, which will derive
-// from it. We put functionalities common to all Matcher<T>
-// specializations here to avoid code duplication.
-template <typename T>
-class MatcherBase {
- public:
- // Returns true iff the matcher matches x; also explains the match
- // result to 'listener'.
- bool MatchAndExplain(T x, MatchResultListener* listener) const {
- return impl_->MatchAndExplain(x, listener);
- }
-
- // Returns true iff this matcher matches x.
- bool Matches(T x) const {
- DummyMatchResultListener dummy;
- return MatchAndExplain(x, &dummy);
- }
-
- // Describes this matcher to an ostream.
- void DescribeTo(::std::ostream* os) const { impl_->DescribeTo(os); }
-
- // Describes the negation of this matcher to an ostream.
- void DescribeNegationTo(::std::ostream* os) const {
- impl_->DescribeNegationTo(os);
- }
-
- // Explains why x matches, or doesn't match, the matcher.
- void ExplainMatchResultTo(T x, ::std::ostream* os) const {
- StreamMatchResultListener listener(os);
- MatchAndExplain(x, &listener);
- }
-
- // Returns the describer for this matcher object; retains ownership
- // of the describer, which is only guaranteed to be alive when
- // this matcher object is alive.
- const MatcherDescriberInterface* GetDescriber() const {
- return impl_.get();
- }
-
- protected:
- MatcherBase() {}
-
- // Constructs a matcher from its implementation.
- explicit MatcherBase(const MatcherInterface<T>* impl)
- : impl_(impl) {}
-
- virtual ~MatcherBase() {}
-
- private:
- // shared_ptr (util/gtl/shared_ptr.h) and linked_ptr have similar
- // interfaces. The former dynamically allocates a chunk of memory
- // to hold the reference count, while the latter tracks all
- // references using a circular linked list without allocating
- // memory. It has been observed that linked_ptr performs better in
- // typical scenarios. However, shared_ptr can out-perform
- // linked_ptr when there are many more uses of the copy constructor
- // than the default constructor.
- //
- // If performance becomes a problem, we should see if using
- // shared_ptr helps.
- ::testing::internal::linked_ptr<const MatcherInterface<T> > impl_;
-};
-
-} // namespace internal
-
-// A Matcher<T> is a copyable and IMMUTABLE (except by assignment)
-// object that can check whether a value of type T matches. The
-// implementation of Matcher<T> is just a linked_ptr to const
-// MatcherInterface<T>, so copying is fairly cheap. Don't inherit
-// from Matcher!
-template <typename T>
-class Matcher : public internal::MatcherBase<T> {
- public:
- // Constructs a null matcher. Needed for storing Matcher objects in STL
- // containers. A default-constructed matcher is not yet initialized. You
- // cannot use it until a valid value has been assigned to it.
- explicit Matcher() {} // NOLINT
-
- // Constructs a matcher from its implementation.
- explicit Matcher(const MatcherInterface<T>* impl)
- : internal::MatcherBase<T>(impl) {}
-
- // Implicit constructor here allows people to write
- // EXPECT_CALL(foo, Bar(5)) instead of EXPECT_CALL(foo, Bar(Eq(5))) sometimes
- Matcher(T value); // NOLINT
-};
-
-// The following two specializations allow the user to write str
-// instead of Eq(str) and "foo" instead of Eq("foo") when a string
-// matcher is expected.
-template <>
-class GTEST_API_ Matcher<const internal::string&>
- : public internal::MatcherBase<const internal::string&> {
- public:
- Matcher() {}
-
- explicit Matcher(const MatcherInterface<const internal::string&>* impl)
- : internal::MatcherBase<const internal::string&>(impl) {}
-
- // Allows the user to write str instead of Eq(str) sometimes, where
- // str is a string object.
- Matcher(const internal::string& s); // NOLINT
-
- // Allows the user to write "foo" instead of Eq("foo") sometimes.
- Matcher(const char* s); // NOLINT
-};
-
-template <>
-class GTEST_API_ Matcher<internal::string>
- : public internal::MatcherBase<internal::string> {
- public:
- Matcher() {}
-
- explicit Matcher(const MatcherInterface<internal::string>* impl)
- : internal::MatcherBase<internal::string>(impl) {}
-
- // Allows the user to write str instead of Eq(str) sometimes, where
- // str is a string object.
- Matcher(const internal::string& s); // NOLINT
-
- // Allows the user to write "foo" instead of Eq("foo") sometimes.
- Matcher(const char* s); // NOLINT
-};
-
-#if GTEST_HAS_STRING_PIECE_
-// The following two specializations allow the user to write str
-// instead of Eq(str) and "foo" instead of Eq("foo") when a StringPiece
-// matcher is expected.
-template <>
-class GTEST_API_ Matcher<const StringPiece&>
- : public internal::MatcherBase<const StringPiece&> {
- public:
- Matcher() {}
-
- explicit Matcher(const MatcherInterface<const StringPiece&>* impl)
- : internal::MatcherBase<const StringPiece&>(impl) {}
-
- // Allows the user to write str instead of Eq(str) sometimes, where
- // str is a string object.
- Matcher(const internal::string& s); // NOLINT
-
- // Allows the user to write "foo" instead of Eq("foo") sometimes.
- Matcher(const char* s); // NOLINT
-
- // Allows the user to pass StringPieces directly.
- Matcher(StringPiece s); // NOLINT
-};
-
-template <>
-class GTEST_API_ Matcher<StringPiece>
- : public internal::MatcherBase<StringPiece> {
- public:
- Matcher() {}
-
- explicit Matcher(const MatcherInterface<StringPiece>* impl)
- : internal::MatcherBase<StringPiece>(impl) {}
-
- // Allows the user to write str instead of Eq(str) sometimes, where
- // str is a string object.
- Matcher(const internal::string& s); // NOLINT
-
- // Allows the user to write "foo" instead of Eq("foo") sometimes.
- Matcher(const char* s); // NOLINT
-
- // Allows the user to pass StringPieces directly.
- Matcher(StringPiece s); // NOLINT
-};
-#endif // GTEST_HAS_STRING_PIECE_
-
-// The PolymorphicMatcher class template makes it easy to implement a
-// polymorphic matcher (i.e. a matcher that can match values of more
-// than one type, e.g. Eq(n) and NotNull()).
-//
-// To define a polymorphic matcher, a user should provide an Impl
-// class that has a DescribeTo() method and a DescribeNegationTo()
-// method, and define a member function (or member function template)
-//
-// bool MatchAndExplain(const Value& value,
-// MatchResultListener* listener) const;
-//
-// See the definition of NotNull() for a complete example.
-template <class Impl>
-class PolymorphicMatcher {
- public:
- explicit PolymorphicMatcher(const Impl& an_impl) : impl_(an_impl) {}
-
- // Returns a mutable reference to the underlying matcher
- // implementation object.
- Impl& mutable_impl() { return impl_; }
-
- // Returns an immutable reference to the underlying matcher
- // implementation object.
- const Impl& impl() const { return impl_; }
-
- template <typename T>
- operator Matcher<T>() const {
- return Matcher<T>(new MonomorphicImpl<T>(impl_));
- }
-
- private:
- template <typename T>
- class MonomorphicImpl : public MatcherInterface<T> {
- public:
- explicit MonomorphicImpl(const Impl& impl) : impl_(impl) {}
-
- virtual void DescribeTo(::std::ostream* os) const {
- impl_.DescribeTo(os);
- }
-
- virtual void DescribeNegationTo(::std::ostream* os) const {
- impl_.DescribeNegationTo(os);
- }
-
- virtual bool MatchAndExplain(T x, MatchResultListener* listener) const {
- return impl_.MatchAndExplain(x, listener);
- }
-
- private:
- const Impl impl_;
-
- GTEST_DISALLOW_ASSIGN_(MonomorphicImpl);
- };
-
- Impl impl_;
-
- GTEST_DISALLOW_ASSIGN_(PolymorphicMatcher);
-};
-
-// Creates a matcher from its implementation. This is easier to use
-// than the Matcher<T> constructor as it doesn't require you to
-// explicitly write the template argument, e.g.
-//
-// MakeMatcher(foo);
-// vs
-// Matcher<const string&>(foo);
-template <typename T>
-inline Matcher<T> MakeMatcher(const MatcherInterface<T>* impl) {
- return Matcher<T>(impl);
-}
-
-// Creates a polymorphic matcher from its implementation. This is
-// easier to use than the PolymorphicMatcher<Impl> constructor as it
-// doesn't require you to explicitly write the template argument, e.g.
-//
-// MakePolymorphicMatcher(foo);
-// vs
-// PolymorphicMatcher<TypeOfFoo>(foo);
-template <class Impl>
-inline PolymorphicMatcher<Impl> MakePolymorphicMatcher(const Impl& impl) {
- return PolymorphicMatcher<Impl>(impl);
-}
-
// Anything inside the 'internal' namespace IS INTERNAL IMPLEMENTATION
// and MUST NOT BE USED IN USER CODE!!!
namespace internal {
class MatcherCastImpl {
public:
static Matcher<T> Cast(const M& polymorphic_matcher_or_value) {
- // M can be a polymorhic matcher, in which case we want to use
+ // M can be a polymorphic matcher, in which case we want to use
// its conversion operator to create Matcher<T>. Or it can be a value
// that should be passed to the Matcher<T>'s constructor.
//
// constructor from M (this usually happens when T has an implicit
// constructor from any type).
//
- // It won't work to unconditionally implict_cast
+ // It won't work to unconditionally implicit_cast
// polymorphic_matcher_or_value to Matcher<T> because it won't trigger
// a user-defined conversion from M to T if one exists (assuming M is
// a value).
- return CastImpl(
- polymorphic_matcher_or_value,
- BooleanConstant<
- internal::ImplicitlyConvertible<M, Matcher<T> >::value>());
+ return CastImpl(polymorphic_matcher_or_value,
+ std::is_convertible<M, Matcher<T>>{},
+ std::is_convertible<M, T>{});
}
private:
- static Matcher<T> CastImpl(const M& value, BooleanConstant<false>) {
- // M can't be implicitly converted to Matcher<T>, so M isn't a polymorphic
- // matcher. It must be a value then. Use direct initialization to create
- // a matcher.
- return Matcher<T>(ImplicitCast_<T>(value));
- }
-
+ template <bool Ignore>
static Matcher<T> CastImpl(const M& polymorphic_matcher_or_value,
- BooleanConstant<true>) {
+ std::true_type /* convertible_to_matcher */,
+ std::integral_constant<bool, Ignore>) {
// M is implicitly convertible to Matcher<T>, which means that either
- // M is a polymorhpic matcher or Matcher<T> has an implicit constructor
+ // M is a polymorphic matcher or Matcher<T> has an implicit constructor
// from M. In both cases using the implicit conversion will produce a
// matcher.
//
// (first to create T from M and then to create Matcher<T> from T).
return polymorphic_matcher_or_value;
}
+
+ // M can't be implicitly converted to Matcher<T>, so M isn't a polymorphic
+ // matcher. It's a value of a type implicitly convertible to T. Use direct
+ // initialization to create a matcher.
+ static Matcher<T> CastImpl(const M& value,
+ std::false_type /* convertible_to_matcher */,
+ std::true_type /* convertible_to_T */) {
+ return Matcher<T>(ImplicitCast_<T>(value));
+ }
+
+ // M can't be implicitly converted to either Matcher<T> or T. Attempt to use
+ // polymorphic matcher Eq(value) in this case.
+ //
+ // Note that we first attempt to perform an implicit cast on the value and
+ // only fall back to the polymorphic Eq() matcher afterwards because the
+ // latter calls bool operator==(const Lhs& lhs, const Rhs& rhs) in the end
+ // which might be undefined even when Rhs is implicitly convertible to Lhs
+ // (e.g. std::pair<const int, int> vs. std::pair<int, int>).
+ //
+ // We don't define this method inline as we need the declaration of Eq().
+ static Matcher<T> CastImpl(const M& value,
+ std::false_type /* convertible_to_matcher */,
+ std::false_type /* convertible_to_T */);
};
// This more specialized version is used when MatcherCast()'s argument
: source_matcher_(source_matcher) {}
// We delegate the matching logic to the source matcher.
- virtual bool MatchAndExplain(T x, MatchResultListener* listener) const {
- return source_matcher_.MatchAndExplain(static_cast<U>(x), listener);
+ bool MatchAndExplain(T x, MatchResultListener* listener) const override {
+ using FromType = typename std::remove_cv<typename std::remove_pointer<
+ typename std::remove_reference<T>::type>::type>::type;
+ using ToType = typename std::remove_cv<typename std::remove_pointer<
+ typename std::remove_reference<U>::type>::type>::type;
+ // Do not allow implicitly converting base*/& to derived*/&.
+ static_assert(
+ // Do not trigger if only one of them is a pointer. That implies a
+ // regular conversion and not a down_cast.
+ (std::is_pointer<typename std::remove_reference<T>::type>::value !=
+ std::is_pointer<typename std::remove_reference<U>::type>::value) ||
+ std::is_same<FromType, ToType>::value ||
+ !std::is_base_of<FromType, ToType>::value,
+ "Can't implicitly convert from <base> to <derived>");
+
+ // Do the cast to `U` explicitly if necessary.
+ // Otherwise, let implicit conversions do the trick.
+ using CastType =
+ typename std::conditional<std::is_convertible<T&, const U&>::value,
+ T&, U>::type;
+
+ return source_matcher_.MatchAndExplain(static_cast<CastType>(x),
+ listener);
}
- virtual void DescribeTo(::std::ostream* os) const {
+ void DescribeTo(::std::ostream* os) const override {
source_matcher_.DescribeTo(os);
}
- virtual void DescribeNegationTo(::std::ostream* os) const {
+ void DescribeNegationTo(::std::ostream* os) const override {
source_matcher_.DescribeNegationTo(os);
}
private:
const Matcher<U> source_matcher_;
-
- GTEST_DISALLOW_ASSIGN_(Impl);
};
};
static Matcher<T> Cast(const Matcher<T>& matcher) { return matcher; }
};
+// Template specialization for parameterless Matcher.
+template <typename Derived>
+class MatcherBaseImpl {
+ public:
+ MatcherBaseImpl() = default;
+
+ template <typename T>
+ operator ::testing::Matcher<T>() const { // NOLINT(runtime/explicit)
+ return ::testing::Matcher<T>(new
+ typename Derived::template gmock_Impl<T>());
+ }
+};
+
+// Template specialization for Matcher with parameters.
+template <template <typename...> class Derived, typename... Ts>
+class MatcherBaseImpl<Derived<Ts...>> {
+ public:
+ // Mark the constructor explicit for single argument T to avoid implicit
+ // conversions.
+ template <typename E = std::enable_if<sizeof...(Ts) == 1>,
+ typename E::type* = nullptr>
+ explicit MatcherBaseImpl(Ts... params)
+ : params_(std::forward<Ts>(params)...) {}
+ template <typename E = std::enable_if<sizeof...(Ts) != 1>,
+ typename = typename E::type>
+ MatcherBaseImpl(Ts... params) // NOLINT
+ : params_(std::forward<Ts>(params)...) {}
+
+ template <typename F>
+ operator ::testing::Matcher<F>() const { // NOLINT(runtime/explicit)
+ return Apply<F>(MakeIndexSequence<sizeof...(Ts)>{});
+ }
+
+ private:
+ template <typename F, std::size_t... tuple_ids>
+ ::testing::Matcher<F> Apply(IndexSequence<tuple_ids...>) const {
+ return ::testing::Matcher<F>(
+ new typename Derived<Ts...>::template gmock_Impl<F>(
+ std::get<tuple_ids>(params_)...));
+ }
+
+ const std::tuple<Ts...> params_;
+};
+
} // namespace internal
// In order to be safe and clear, casting between different matcher
return internal::MatcherCastImpl<T, M>::Cast(matcher);
}
-// Implements SafeMatcherCast().
-//
-// We use an intermediate class to do the actual safe casting as Nokia's
-// Symbian compiler cannot decide between
-// template <T, M> ... (M) and
-// template <T, U> ... (const Matcher<U>&)
-// for function templates but can for member function templates.
-template <typename T>
-class SafeMatcherCastImpl {
- public:
- // This overload handles polymorphic matchers and values only since
- // monomorphic matchers are handled by the next one.
- template <typename M>
- static inline Matcher<T> Cast(const M& polymorphic_matcher_or_value) {
- return internal::MatcherCastImpl<T, M>::Cast(polymorphic_matcher_or_value);
- }
-
- // This overload handles monomorphic matchers.
- //
- // In general, if type T can be implicitly converted to type U, we can
- // safely convert a Matcher<U> to a Matcher<T> (i.e. Matcher is
- // contravariant): just keep a copy of the original Matcher<U>, convert the
- // argument from type T to U, and then pass it to the underlying Matcher<U>.
- // The only exception is when U is a reference and T is not, as the
- // underlying Matcher<U> may be interested in the argument's address, which
- // is not preserved in the conversion from T to U.
- template <typename U>
- static inline Matcher<T> Cast(const Matcher<U>& matcher) {
- // Enforce that T can be implicitly converted to U.
- GTEST_COMPILE_ASSERT_((internal::ImplicitlyConvertible<T, U>::value),
- T_must_be_implicitly_convertible_to_U);
- // Enforce that we are not converting a non-reference type T to a reference
- // type U.
- GTEST_COMPILE_ASSERT_(
- internal::is_reference<T>::value || !internal::is_reference<U>::value,
- cannot_convert_non_referentce_arg_to_reference);
- // In case both T and U are arithmetic types, enforce that the
- // conversion is not lossy.
- typedef GTEST_REMOVE_REFERENCE_AND_CONST_(T) RawT;
- typedef GTEST_REMOVE_REFERENCE_AND_CONST_(U) RawU;
- const bool kTIsOther = GMOCK_KIND_OF_(RawT) == internal::kOther;
- const bool kUIsOther = GMOCK_KIND_OF_(RawU) == internal::kOther;
- GTEST_COMPILE_ASSERT_(
- kTIsOther || kUIsOther ||
- (internal::LosslessArithmeticConvertible<RawT, RawU>::value),
- conversion_of_arithmetic_types_must_be_lossless);
- return MatcherCast<T>(matcher);
- }
-};
-
+// This overload handles polymorphic matchers and values only since
+// monomorphic matchers are handled by the next one.
template <typename T, typename M>
-inline Matcher<T> SafeMatcherCast(const M& polymorphic_matcher) {
- return SafeMatcherCastImpl<T>::Cast(polymorphic_matcher);
+inline Matcher<T> SafeMatcherCast(const M& polymorphic_matcher_or_value) {
+ return MatcherCast<T>(polymorphic_matcher_or_value);
+}
+
+// This overload handles monomorphic matchers.
+//
+// In general, if type T can be implicitly converted to type U, we can
+// safely convert a Matcher<U> to a Matcher<T> (i.e. Matcher is
+// contravariant): just keep a copy of the original Matcher<U>, convert the
+// argument from type T to U, and then pass it to the underlying Matcher<U>.
+// The only exception is when U is a reference and T is not, as the
+// underlying Matcher<U> may be interested in the argument's address, which
+// is not preserved in the conversion from T to U.
+template <typename T, typename U>
+inline Matcher<T> SafeMatcherCast(const Matcher<U>& matcher) {
+ // Enforce that T can be implicitly converted to U.
+ static_assert(std::is_convertible<const T&, const U&>::value,
+ "T must be implicitly convertible to U");
+ // Enforce that we are not converting a non-reference type T to a reference
+ // type U.
+ GTEST_COMPILE_ASSERT_(
+ std::is_reference<T>::value || !std::is_reference<U>::value,
+ cannot_convert_non_reference_arg_to_reference);
+ // In case both T and U are arithmetic types, enforce that the
+ // conversion is not lossy.
+ typedef GTEST_REMOVE_REFERENCE_AND_CONST_(T) RawT;
+ typedef GTEST_REMOVE_REFERENCE_AND_CONST_(U) RawU;
+ constexpr bool kTIsOther = GMOCK_KIND_OF_(RawT) == internal::kOther;
+ constexpr bool kUIsOther = GMOCK_KIND_OF_(RawU) == internal::kOther;
+ GTEST_COMPILE_ASSERT_(
+ kTIsOther || kUIsOther ||
+ (internal::LosslessArithmeticConvertible<RawT, RawU>::value),
+ conversion_of_arithmetic_types_must_be_lossless);
+ return MatcherCast<T>(matcher);
}
// A<T>() returns a matcher that matches any value of type T.
namespace internal {
// If the explanation is not empty, prints it to the ostream.
-inline void PrintIfNotEmpty(const internal::string& explanation,
+inline void PrintIfNotEmpty(const std::string& explanation,
::std::ostream* os) {
- if (explanation != "" && os != NULL) {
+ if (explanation != "" && os != nullptr) {
*os << ", " << explanation;
}
}
// Returns true if the given type name is easy to read by a human.
// This is used to decide whether printing the type of a value might
// be helpful.
-inline bool IsReadableTypeName(const string& type_name) {
+inline bool IsReadableTypeName(const std::string& type_name) {
// We consider a type name readable if it's short or doesn't contain
// a template or function type.
return (type_name.length() <= 20 ||
- type_name.find_first_of("<(") == string::npos);
+ type_name.find_first_of("<(") == std::string::npos);
}
// Matches the value against the given matcher, prints the value and explains
UniversalPrint(value, listener->stream());
#if GTEST_HAS_RTTI
- const string& type_name = GetTypeName<Value>();
+ const std::string& type_name = GetTypeName<Value>();
if (IsReadableTypeName(type_name))
*listener->stream() << " (of type " << type_name << ")";
#endif
class TuplePrefix {
public:
// TuplePrefix<N>::Matches(matcher_tuple, value_tuple) returns true
- // iff the first N fields of matcher_tuple matches the first N
- // fields of value_tuple, respectively.
+ // if and only if the first N fields of matcher_tuple matches
+ // the first N fields of value_tuple, respectively.
template <typename MatcherTuple, typename ValueTuple>
static bool Matches(const MatcherTuple& matcher_tuple,
const ValueTuple& value_tuple) {
- return TuplePrefix<N - 1>::Matches(matcher_tuple, value_tuple)
- && get<N - 1>(matcher_tuple).Matches(get<N - 1>(value_tuple));
+ return TuplePrefix<N - 1>::Matches(matcher_tuple, value_tuple) &&
+ std::get<N - 1>(matcher_tuple).Matches(std::get<N - 1>(value_tuple));
}
// TuplePrefix<N>::ExplainMatchFailuresTo(matchers, values, os)
// Then describes the failure (if any) in the (N - 1)-th (0-based)
// field.
- typename tuple_element<N - 1, MatcherTuple>::type matcher =
- get<N - 1>(matchers);
- typedef typename tuple_element<N - 1, ValueTuple>::type Value;
- Value value = get<N - 1>(values);
+ typename std::tuple_element<N - 1, MatcherTuple>::type matcher =
+ std::get<N - 1>(matchers);
+ typedef typename std::tuple_element<N - 1, ValueTuple>::type Value;
+ const Value& value = std::get<N - 1>(values);
StringMatchResultListener listener;
if (!matcher.MatchAndExplain(value, &listener)) {
- // TODO(wan): include in the message the name of the parameter
- // as used in MOCK_METHOD*() when possible.
*os << " Expected arg #" << N - 1 << ": ";
- get<N - 1>(matchers).DescribeTo(os);
+ std::get<N - 1>(matchers).DescribeTo(os);
*os << "\n Actual: ";
// We remove the reference in type Value to prevent the
// universal printer from printing the address of value, which
::std::ostream* /* os */) {}
};
-// TupleMatches(matcher_tuple, value_tuple) returns true iff all
-// matchers in matcher_tuple match the corresponding fields in
+// TupleMatches(matcher_tuple, value_tuple) returns true if and only if
+// all matchers in matcher_tuple match the corresponding fields in
// value_tuple. It is a compiler error if matcher_tuple and
// value_tuple have different number of fields or incompatible field
// types.
const ValueTuple& value_tuple) {
// Makes sure that matcher_tuple and value_tuple have the same
// number of fields.
- GTEST_COMPILE_ASSERT_(tuple_size<MatcherTuple>::value ==
- tuple_size<ValueTuple>::value,
+ GTEST_COMPILE_ASSERT_(std::tuple_size<MatcherTuple>::value ==
+ std::tuple_size<ValueTuple>::value,
matcher_and_value_have_different_numbers_of_fields);
- return TuplePrefix<tuple_size<ValueTuple>::value>::
- Matches(matcher_tuple, value_tuple);
+ return TuplePrefix<std::tuple_size<ValueTuple>::value>::Matches(matcher_tuple,
+ value_tuple);
}
// Describes failures in matching matchers against values. If there
void ExplainMatchFailureTupleTo(const MatcherTuple& matchers,
const ValueTuple& values,
::std::ostream* os) {
- TuplePrefix<tuple_size<MatcherTuple>::value>::ExplainMatchFailuresTo(
+ TuplePrefix<std::tuple_size<MatcherTuple>::value>::ExplainMatchFailuresTo(
matchers, values, os);
}
template <typename Tuple, typename Func, typename OutIter>
class TransformTupleValuesHelper {
private:
- typedef ::testing::tuple_size<Tuple> TupleSize;
+ typedef ::std::tuple_size<Tuple> TupleSize;
public:
// For each member of tuple 't', taken in order, evaluates '*out++ = f(t)'.
template <typename Tup, size_t kRemainingSize>
struct IterateOverTuple {
OutIter operator() (Func f, const Tup& t, OutIter out) const {
- *out++ = f(::testing::get<TupleSize::value - kRemainingSize>(t));
+ *out++ = f(::std::get<TupleSize::value - kRemainingSize>(t));
return IterateOverTuple<Tup, kRemainingSize - 1>()(f, t, out);
}
};
return TransformTupleValuesHelper<Tuple, Func, OutIter>::Run(f, t, out);
}
-// Implements A<T>().
-template <typename T>
-class AnyMatcherImpl : public MatcherInterface<T> {
- public:
- virtual bool MatchAndExplain(
- T /* x */, MatchResultListener* /* listener */) const { return true; }
- virtual void DescribeTo(::std::ostream* os) const { *os << "is anything"; }
- virtual void DescribeNegationTo(::std::ostream* os) const {
- // This is mostly for completeness' safe, as it's not very useful
- // to write Not(A<bool>()). However we cannot completely rule out
- // such a possibility, and it doesn't hurt to be prepared.
- *os << "never matches";
- }
-};
-
// Implements _, a matcher that matches any value of any
// type. This is a polymorphic matcher, so we need a template type
// conversion operator to make it appearing as a Matcher<T> for any
// type T.
class AnythingMatcher {
public:
- template <typename T>
- operator Matcher<T>() const { return A<T>(); }
-};
+ using is_gtest_matcher = void;
-// Implements a matcher that compares a given value with a
-// pre-supplied value using one of the ==, <=, <, etc, operators. The
-// two values being compared don't have to have the same type.
-//
-// The matcher defined here is polymorphic (for example, Eq(5) can be
-// used to match an int, a short, a double, etc). Therefore we use
-// a template type conversion operator in the implementation.
-//
-// The following template definition assumes that the Rhs parameter is
-// a "bare" type (i.e. neither 'const T' nor 'T&').
-template <typename D, typename Rhs, typename Op>
-class ComparisonBase {
- public:
- explicit ComparisonBase(const Rhs& rhs) : rhs_(rhs) {}
- template <typename Lhs>
- operator Matcher<Lhs>() const {
- return MakeMatcher(new Impl<Lhs>(rhs_));
+ template <typename T>
+ bool MatchAndExplain(const T& /* x */, std::ostream* /* listener */) const {
+ return true;
+ }
+ void DescribeTo(std::ostream* os) const { *os << "is anything"; }
+ void DescribeNegationTo(::std::ostream* os) const {
+ // This is mostly for completeness' sake, as it's not very useful
+ // to write Not(A<bool>()). However we cannot completely rule out
+ // such a possibility, and it doesn't hurt to be prepared.
+ *os << "never matches";
}
-
- private:
- template <typename Lhs>
- class Impl : public MatcherInterface<Lhs> {
- public:
- explicit Impl(const Rhs& rhs) : rhs_(rhs) {}
- virtual bool MatchAndExplain(
- Lhs lhs, MatchResultListener* /* listener */) const {
- return Op()(lhs, rhs_);
- }
- virtual void DescribeTo(::std::ostream* os) const {
- *os << D::Desc() << " ";
- UniversalPrint(rhs_, os);
- }
- virtual void DescribeNegationTo(::std::ostream* os) const {
- *os << D::NegatedDesc() << " ";
- UniversalPrint(rhs_, os);
- }
- private:
- Rhs rhs_;
- GTEST_DISALLOW_ASSIGN_(Impl);
- };
- Rhs rhs_;
- GTEST_DISALLOW_ASSIGN_(ComparisonBase);
-};
-
-template <typename Rhs>
-class EqMatcher : public ComparisonBase<EqMatcher<Rhs>, Rhs, AnyEq> {
- public:
- explicit EqMatcher(const Rhs& rhs)
- : ComparisonBase<EqMatcher<Rhs>, Rhs, AnyEq>(rhs) { }
- static const char* Desc() { return "is equal to"; }
- static const char* NegatedDesc() { return "isn't equal to"; }
-};
-template <typename Rhs>
-class NeMatcher : public ComparisonBase<NeMatcher<Rhs>, Rhs, AnyNe> {
- public:
- explicit NeMatcher(const Rhs& rhs)
- : ComparisonBase<NeMatcher<Rhs>, Rhs, AnyNe>(rhs) { }
- static const char* Desc() { return "isn't equal to"; }
- static const char* NegatedDesc() { return "is equal to"; }
-};
-template <typename Rhs>
-class LtMatcher : public ComparisonBase<LtMatcher<Rhs>, Rhs, AnyLt> {
- public:
- explicit LtMatcher(const Rhs& rhs)
- : ComparisonBase<LtMatcher<Rhs>, Rhs, AnyLt>(rhs) { }
- static const char* Desc() { return "is <"; }
- static const char* NegatedDesc() { return "isn't <"; }
-};
-template <typename Rhs>
-class GtMatcher : public ComparisonBase<GtMatcher<Rhs>, Rhs, AnyGt> {
- public:
- explicit GtMatcher(const Rhs& rhs)
- : ComparisonBase<GtMatcher<Rhs>, Rhs, AnyGt>(rhs) { }
- static const char* Desc() { return "is >"; }
- static const char* NegatedDesc() { return "isn't >"; }
-};
-template <typename Rhs>
-class LeMatcher : public ComparisonBase<LeMatcher<Rhs>, Rhs, AnyLe> {
- public:
- explicit LeMatcher(const Rhs& rhs)
- : ComparisonBase<LeMatcher<Rhs>, Rhs, AnyLe>(rhs) { }
- static const char* Desc() { return "is <="; }
- static const char* NegatedDesc() { return "isn't <="; }
-};
-template <typename Rhs>
-class GeMatcher : public ComparisonBase<GeMatcher<Rhs>, Rhs, AnyGe> {
- public:
- explicit GeMatcher(const Rhs& rhs)
- : ComparisonBase<GeMatcher<Rhs>, Rhs, AnyGe>(rhs) { }
- static const char* Desc() { return "is >="; }
- static const char* NegatedDesc() { return "isn't >="; }
};
// Implements the polymorphic IsNull() matcher, which matches any raw or smart
template <typename Pointer>
bool MatchAndExplain(const Pointer& p,
MatchResultListener* /* listener */) const {
-#if GTEST_LANG_CXX11
return p == nullptr;
-#else // GTEST_LANG_CXX11
- return GetRawPointer(p) == NULL;
-#endif // GTEST_LANG_CXX11
}
void DescribeTo(::std::ostream* os) const { *os << "is NULL"; }
template <typename Pointer>
bool MatchAndExplain(const Pointer& p,
MatchResultListener* /* listener */) const {
-#if GTEST_LANG_CXX11
return p != nullptr;
-#else // GTEST_LANG_CXX11
- return GetRawPointer(p) != NULL;
-#endif // GTEST_LANG_CXX11
}
void DescribeTo(::std::ostream* os) const { *os << "isn't NULL"; }
// MatchAndExplain() takes a Super& (as opposed to const Super&)
// in order to match the interface MatcherInterface<Super&>.
- virtual bool MatchAndExplain(
- Super& x, MatchResultListener* listener) const {
+ bool MatchAndExplain(Super& x,
+ MatchResultListener* listener) const override {
*listener << "which is located @" << static_cast<const void*>(&x);
return &x == &object_;
}
- virtual void DescribeTo(::std::ostream* os) const {
+ void DescribeTo(::std::ostream* os) const override {
*os << "references the variable ";
UniversalPrinter<Super&>::Print(object_, os);
}
- virtual void DescribeNegationTo(::std::ostream* os) const {
+ void DescribeNegationTo(::std::ostream* os) const override {
*os << "does not reference the variable ";
UniversalPrinter<Super&>::Print(object_, os);
}
private:
const Super& object_;
-
- GTEST_DISALLOW_ASSIGN_(Impl);
};
T& object_;
-
- GTEST_DISALLOW_ASSIGN_(RefMatcher);
};
// Polymorphic helper functions for narrow and wide string matchers.
template <typename StringType>
class StrEqualityMatcher {
public:
- StrEqualityMatcher(const StringType& str, bool expect_eq,
- bool case_sensitive)
- : string_(str), expect_eq_(expect_eq), case_sensitive_(case_sensitive) {}
+ StrEqualityMatcher(StringType str, bool expect_eq, bool case_sensitive)
+ : string_(std::move(str)),
+ expect_eq_(expect_eq),
+ case_sensitive_(case_sensitive) {}
+
+#if GTEST_INTERNAL_HAS_STRING_VIEW
+ bool MatchAndExplain(const internal::StringView& s,
+ MatchResultListener* listener) const {
+ // This should fail to compile if StringView is used with wide
+ // strings.
+ const StringType& str = std::string(s);
+ return MatchAndExplain(str, listener);
+ }
+#endif // GTEST_INTERNAL_HAS_STRING_VIEW
// Accepts pointer types, particularly:
// const char*
// wchar_t*
template <typename CharType>
bool MatchAndExplain(CharType* s, MatchResultListener* listener) const {
- if (s == NULL) {
+ if (s == nullptr) {
return !expect_eq_;
}
return MatchAndExplain(StringType(s), listener);
// Matches anything that can convert to StringType.
//
// This is a template, not just a plain function with const StringType&,
- // because StringPiece has some interfering non-explicit constructors.
+ // because StringView has some interfering non-explicit constructors.
template <typename MatcheeStringType>
bool MatchAndExplain(const MatcheeStringType& s,
MatchResultListener* /* listener */) const {
- const StringType& s2(s);
+ const StringType s2(s);
const bool eq = case_sensitive_ ? s2 == string_ :
CaseInsensitiveStringEquals(s2, string_);
return expect_eq_ == eq;
const StringType string_;
const bool expect_eq_;
const bool case_sensitive_;
-
- GTEST_DISALLOW_ASSIGN_(StrEqualityMatcher);
};
// Implements the polymorphic HasSubstr(substring) matcher, which
explicit HasSubstrMatcher(const StringType& substring)
: substring_(substring) {}
+#if GTEST_INTERNAL_HAS_STRING_VIEW
+ bool MatchAndExplain(const internal::StringView& s,
+ MatchResultListener* listener) const {
+ // This should fail to compile if StringView is used with wide
+ // strings.
+ const StringType& str = std::string(s);
+ return MatchAndExplain(str, listener);
+ }
+#endif // GTEST_INTERNAL_HAS_STRING_VIEW
+
// Accepts pointer types, particularly:
// const char*
// char*
// wchar_t*
template <typename CharType>
bool MatchAndExplain(CharType* s, MatchResultListener* listener) const {
- return s != NULL && MatchAndExplain(StringType(s), listener);
+ return s != nullptr && MatchAndExplain(StringType(s), listener);
}
// Matches anything that can convert to StringType.
//
// This is a template, not just a plain function with const StringType&,
- // because StringPiece has some interfering non-explicit constructors.
+ // because StringView has some interfering non-explicit constructors.
template <typename MatcheeStringType>
bool MatchAndExplain(const MatcheeStringType& s,
MatchResultListener* /* listener */) const {
- const StringType& s2(s);
- return s2.find(substring_) != StringType::npos;
+ return StringType(s).find(substring_) != StringType::npos;
}
// Describes what this matcher matches.
private:
const StringType substring_;
-
- GTEST_DISALLOW_ASSIGN_(HasSubstrMatcher);
};
// Implements the polymorphic StartsWith(substring) matcher, which
explicit StartsWithMatcher(const StringType& prefix) : prefix_(prefix) {
}
+#if GTEST_INTERNAL_HAS_STRING_VIEW
+ bool MatchAndExplain(const internal::StringView& s,
+ MatchResultListener* listener) const {
+ // This should fail to compile if StringView is used with wide
+ // strings.
+ const StringType& str = std::string(s);
+ return MatchAndExplain(str, listener);
+ }
+#endif // GTEST_INTERNAL_HAS_STRING_VIEW
+
// Accepts pointer types, particularly:
// const char*
// char*
// wchar_t*
template <typename CharType>
bool MatchAndExplain(CharType* s, MatchResultListener* listener) const {
- return s != NULL && MatchAndExplain(StringType(s), listener);
+ return s != nullptr && MatchAndExplain(StringType(s), listener);
}
// Matches anything that can convert to StringType.
//
// This is a template, not just a plain function with const StringType&,
- // because StringPiece has some interfering non-explicit constructors.
+ // because StringView has some interfering non-explicit constructors.
template <typename MatcheeStringType>
bool MatchAndExplain(const MatcheeStringType& s,
MatchResultListener* /* listener */) const {
private:
const StringType prefix_;
-
- GTEST_DISALLOW_ASSIGN_(StartsWithMatcher);
};
// Implements the polymorphic EndsWith(substring) matcher, which
public:
explicit EndsWithMatcher(const StringType& suffix) : suffix_(suffix) {}
+#if GTEST_INTERNAL_HAS_STRING_VIEW
+ bool MatchAndExplain(const internal::StringView& s,
+ MatchResultListener* listener) const {
+ // This should fail to compile if StringView is used with wide
+ // strings.
+ const StringType& str = std::string(s);
+ return MatchAndExplain(str, listener);
+ }
+#endif // GTEST_INTERNAL_HAS_STRING_VIEW
+
// Accepts pointer types, particularly:
// const char*
// char*
// wchar_t*
template <typename CharType>
bool MatchAndExplain(CharType* s, MatchResultListener* listener) const {
- return s != NULL && MatchAndExplain(StringType(s), listener);
+ return s != nullptr && MatchAndExplain(StringType(s), listener);
}
// Matches anything that can convert to StringType.
//
// This is a template, not just a plain function with const StringType&,
- // because StringPiece has some interfering non-explicit constructors.
+ // because StringView has some interfering non-explicit constructors.
template <typename MatcheeStringType>
bool MatchAndExplain(const MatcheeStringType& s,
MatchResultListener* /* listener */) const {
private:
const StringType suffix_;
-
- GTEST_DISALLOW_ASSIGN_(EndsWithMatcher);
-};
-
-// Implements polymorphic matchers MatchesRegex(regex) and
-// ContainsRegex(regex), which can be used as a Matcher<T> as long as
-// T can be converted to a string.
-class MatchesRegexMatcher {
- public:
- MatchesRegexMatcher(const RE* regex, bool full_match)
- : regex_(regex), full_match_(full_match) {}
-
- // Accepts pointer types, particularly:
- // const char*
- // char*
- // const wchar_t*
- // wchar_t*
- template <typename CharType>
- bool MatchAndExplain(CharType* s, MatchResultListener* listener) const {
- return s != NULL && MatchAndExplain(internal::string(s), listener);
- }
-
- // Matches anything that can convert to internal::string.
- //
- // This is a template, not just a plain function with const internal::string&,
- // because StringPiece has some interfering non-explicit constructors.
- template <class MatcheeStringType>
- bool MatchAndExplain(const MatcheeStringType& s,
- MatchResultListener* /* listener */) const {
- const internal::string& s2(s);
- return full_match_ ? RE::FullMatch(s2, *regex_) :
- RE::PartialMatch(s2, *regex_);
- }
-
- void DescribeTo(::std::ostream* os) const {
- *os << (full_match_ ? "matches" : "contains")
- << " regular expression ";
- UniversalPrinter<internal::string>::Print(regex_->pattern(), os);
- }
-
- void DescribeNegationTo(::std::ostream* os) const {
- *os << "doesn't " << (full_match_ ? "match" : "contain")
- << " regular expression ";
- UniversalPrinter<internal::string>::Print(regex_->pattern(), os);
- }
-
- private:
- const internal::linked_ptr<const RE> regex_;
- const bool full_match_;
-
- GTEST_DISALLOW_ASSIGN_(MatchesRegexMatcher);
};
// Implements a matcher that compares the two fields of a 2-tuple
// compared don't have to have the same type.
//
// The matcher defined here is polymorphic (for example, Eq() can be
-// used to match a tuple<int, short>, a tuple<const long&, double>,
+// used to match a std::tuple<int, short>, a std::tuple<const long&, double>,
// etc). Therefore we use a template type conversion operator in the
// implementation.
template <typename D, typename Op>
class PairMatchBase {
public:
template <typename T1, typename T2>
- operator Matcher< ::testing::tuple<T1, T2> >() const {
- return MakeMatcher(new Impl< ::testing::tuple<T1, T2> >);
+ operator Matcher<::std::tuple<T1, T2>>() const {
+ return Matcher<::std::tuple<T1, T2>>(new Impl<const ::std::tuple<T1, T2>&>);
}
template <typename T1, typename T2>
- operator Matcher<const ::testing::tuple<T1, T2>&>() const {
- return MakeMatcher(new Impl<const ::testing::tuple<T1, T2>&>);
+ operator Matcher<const ::std::tuple<T1, T2>&>() const {
+ return MakeMatcher(new Impl<const ::std::tuple<T1, T2>&>);
}
private:
template <typename Tuple>
class Impl : public MatcherInterface<Tuple> {
public:
- virtual bool MatchAndExplain(
- Tuple args,
- MatchResultListener* /* listener */) const {
- return Op()(::testing::get<0>(args), ::testing::get<1>(args));
+ bool MatchAndExplain(Tuple args,
+ MatchResultListener* /* listener */) const override {
+ return Op()(::std::get<0>(args), ::std::get<1>(args));
}
- virtual void DescribeTo(::std::ostream* os) const {
+ void DescribeTo(::std::ostream* os) const override {
*os << "are " << GetDesc;
}
- virtual void DescribeNegationTo(::std::ostream* os) const {
+ void DescribeNegationTo(::std::ostream* os) const override {
*os << "aren't " << GetDesc;
}
};
// will prevent different instantiations of NotMatcher from sharing
// the same NotMatcherImpl<T> class.
template <typename T>
-class NotMatcherImpl : public MatcherInterface<T> {
+class NotMatcherImpl : public MatcherInterface<const T&> {
public:
explicit NotMatcherImpl(const Matcher<T>& matcher)
: matcher_(matcher) {}
- virtual bool MatchAndExplain(T x, MatchResultListener* listener) const {
+ bool MatchAndExplain(const T& x,
+ MatchResultListener* listener) const override {
return !matcher_.MatchAndExplain(x, listener);
}
- virtual void DescribeTo(::std::ostream* os) const {
+ void DescribeTo(::std::ostream* os) const override {
matcher_.DescribeNegationTo(os);
}
- virtual void DescribeNegationTo(::std::ostream* os) const {
+ void DescribeNegationTo(::std::ostream* os) const override {
matcher_.DescribeTo(os);
}
private:
const Matcher<T> matcher_;
-
- GTEST_DISALLOW_ASSIGN_(NotMatcherImpl);
};
// Implements the Not(m) matcher, which matches a value that doesn't
private:
InnerMatcher matcher_;
-
- GTEST_DISALLOW_ASSIGN_(NotMatcher);
};
// Implements the AllOf(m1, m2) matcher for a particular argument type
// that will prevent different instantiations of BothOfMatcher from
// sharing the same BothOfMatcherImpl<T> class.
template <typename T>
-class BothOfMatcherImpl : public MatcherInterface<T> {
+class AllOfMatcherImpl : public MatcherInterface<const T&> {
public:
- BothOfMatcherImpl(const Matcher<T>& matcher1, const Matcher<T>& matcher2)
- : matcher1_(matcher1), matcher2_(matcher2) {}
+ explicit AllOfMatcherImpl(std::vector<Matcher<T> > matchers)
+ : matchers_(std::move(matchers)) {}
- virtual void DescribeTo(::std::ostream* os) const {
+ void DescribeTo(::std::ostream* os) const override {
*os << "(";
- matcher1_.DescribeTo(os);
- *os << ") and (";
- matcher2_.DescribeTo(os);
+ for (size_t i = 0; i < matchers_.size(); ++i) {
+ if (i != 0) *os << ") and (";
+ matchers_[i].DescribeTo(os);
+ }
*os << ")";
}
- virtual void DescribeNegationTo(::std::ostream* os) const {
+ void DescribeNegationTo(::std::ostream* os) const override {
*os << "(";
- matcher1_.DescribeNegationTo(os);
- *os << ") or (";
- matcher2_.DescribeNegationTo(os);
+ for (size_t i = 0; i < matchers_.size(); ++i) {
+ if (i != 0) *os << ") or (";
+ matchers_[i].DescribeNegationTo(os);
+ }
*os << ")";
}
- virtual bool MatchAndExplain(T x, MatchResultListener* listener) const {
+ bool MatchAndExplain(const T& x,
+ MatchResultListener* listener) const override {
// If either matcher1_ or matcher2_ doesn't match x, we only need
// to explain why one of them fails.
- StringMatchResultListener listener1;
- if (!matcher1_.MatchAndExplain(x, &listener1)) {
- *listener << listener1.str();
- return false;
- }
+ std::string all_match_result;
- StringMatchResultListener listener2;
- if (!matcher2_.MatchAndExplain(x, &listener2)) {
- *listener << listener2.str();
- return false;
- }
-
- // Otherwise we need to explain why *both* of them match.
- const internal::string s1 = listener1.str();
- const internal::string s2 = listener2.str();
-
- if (s1 == "") {
- *listener << s2;
- } else {
- *listener << s1;
- if (s2 != "") {
- *listener << ", and " << s2;
+ for (size_t i = 0; i < matchers_.size(); ++i) {
+ StringMatchResultListener slistener;
+ if (matchers_[i].MatchAndExplain(x, &slistener)) {
+ if (all_match_result.empty()) {
+ all_match_result = slistener.str();
+ } else {
+ std::string result = slistener.str();
+ if (!result.empty()) {
+ all_match_result += ", and ";
+ all_match_result += result;
+ }
+ }
+ } else {
+ *listener << slistener.str();
+ return false;
}
- }
- return true;
- }
-
- private:
- const Matcher<T> matcher1_;
- const Matcher<T> matcher2_;
-
- GTEST_DISALLOW_ASSIGN_(BothOfMatcherImpl);
-};
-
-#if GTEST_LANG_CXX11
-// MatcherList provides mechanisms for storing a variable number of matchers in
-// a list structure (ListType) and creating a combining matcher from such a
-// list.
-// The template is defined recursively using the following template paramters:
-// * kSize is the length of the MatcherList.
-// * Head is the type of the first matcher of the list.
-// * Tail denotes the types of the remaining matchers of the list.
-template <int kSize, typename Head, typename... Tail>
-struct MatcherList {
- typedef MatcherList<kSize - 1, Tail...> MatcherListTail;
- typedef ::std::pair<Head, typename MatcherListTail::ListType> ListType;
-
- // BuildList stores variadic type values in a nested pair structure.
- // Example:
- // MatcherList<3, int, string, float>::BuildList(5, "foo", 2.0) will return
- // the corresponding result of type pair<int, pair<string, float>>.
- static ListType BuildList(const Head& matcher, const Tail&... tail) {
- return ListType(matcher, MatcherListTail::BuildList(tail...));
- }
-
- // CreateMatcher<T> creates a Matcher<T> from a given list of matchers (built
- // by BuildList()). CombiningMatcher<T> is used to combine the matchers of the
- // list. CombiningMatcher<T> must implement MatcherInterface<T> and have a
- // constructor taking two Matcher<T>s as input.
- template <typename T, template <typename /* T */> class CombiningMatcher>
- static Matcher<T> CreateMatcher(const ListType& matchers) {
- return Matcher<T>(new CombiningMatcher<T>(
- SafeMatcherCast<T>(matchers.first),
- MatcherListTail::template CreateMatcher<T, CombiningMatcher>(
- matchers.second)));
- }
-};
-
-// The following defines the base case for the recursive definition of
-// MatcherList.
-template <typename Matcher1, typename Matcher2>
-struct MatcherList<2, Matcher1, Matcher2> {
- typedef ::std::pair<Matcher1, Matcher2> ListType;
+ }
- static ListType BuildList(const Matcher1& matcher1,
- const Matcher2& matcher2) {
- return ::std::pair<Matcher1, Matcher2>(matcher1, matcher2);
+ // Otherwise we need to explain why *both* of them match.
+ *listener << all_match_result;
+ return true;
}
- template <typename T, template <typename /* T */> class CombiningMatcher>
- static Matcher<T> CreateMatcher(const ListType& matchers) {
- return Matcher<T>(new CombiningMatcher<T>(
- SafeMatcherCast<T>(matchers.first),
- SafeMatcherCast<T>(matchers.second)));
- }
+ private:
+ const std::vector<Matcher<T> > matchers_;
};
// VariadicMatcher is used for the variadic implementation of
class VariadicMatcher {
public:
VariadicMatcher(const Args&... matchers) // NOLINT
- : matchers_(MatcherListType::BuildList(matchers...)) {}
+ : matchers_(matchers...) {
+ static_assert(sizeof...(Args) > 0, "Must have at least one matcher.");
+ }
+
+ VariadicMatcher(const VariadicMatcher&) = default;
+ VariadicMatcher& operator=(const VariadicMatcher&) = delete;
// This template type conversion operator allows an
// VariadicMatcher<Matcher1, Matcher2...> object to match any type that
// all of the provided matchers (Matcher1, Matcher2, ...) can match.
template <typename T>
operator Matcher<T>() const {
- return MatcherListType::template CreateMatcher<T, CombiningMatcher>(
- matchers_);
+ std::vector<Matcher<T> > values;
+ CreateVariadicMatcher<T>(&values, std::integral_constant<size_t, 0>());
+ return Matcher<T>(new CombiningMatcher<T>(std::move(values)));
}
private:
- typedef MatcherList<sizeof...(Args), Args...> MatcherListType;
+ template <typename T, size_t I>
+ void CreateVariadicMatcher(std::vector<Matcher<T> >* values,
+ std::integral_constant<size_t, I>) const {
+ values->push_back(SafeMatcherCast<T>(std::get<I>(matchers_)));
+ CreateVariadicMatcher<T>(values, std::integral_constant<size_t, I + 1>());
+ }
- const typename MatcherListType::ListType matchers_;
+ template <typename T>
+ void CreateVariadicMatcher(
+ std::vector<Matcher<T> >*,
+ std::integral_constant<size_t, sizeof...(Args)>) const {}
- GTEST_DISALLOW_ASSIGN_(VariadicMatcher);
+ std::tuple<Args...> matchers_;
};
template <typename... Args>
-using AllOfMatcher = VariadicMatcher<BothOfMatcherImpl, Args...>;
-
-#endif // GTEST_LANG_CXX11
-
-// Used for implementing the AllOf(m_1, ..., m_n) matcher, which
-// matches a value that matches all of the matchers m_1, ..., and m_n.
-template <typename Matcher1, typename Matcher2>
-class BothOfMatcher {
- public:
- BothOfMatcher(Matcher1 matcher1, Matcher2 matcher2)
- : matcher1_(matcher1), matcher2_(matcher2) {}
-
- // This template type conversion operator allows a
- // BothOfMatcher<Matcher1, Matcher2> object to match any type that
- // both Matcher1 and Matcher2 can match.
- template <typename T>
- operator Matcher<T>() const {
- return Matcher<T>(new BothOfMatcherImpl<T>(SafeMatcherCast<T>(matcher1_),
- SafeMatcherCast<T>(matcher2_)));
- }
-
- private:
- Matcher1 matcher1_;
- Matcher2 matcher2_;
-
- GTEST_DISALLOW_ASSIGN_(BothOfMatcher);
-};
+using AllOfMatcher = VariadicMatcher<AllOfMatcherImpl, Args...>;
// Implements the AnyOf(m1, m2) matcher for a particular argument type
// T. We do not nest it inside the AnyOfMatcher class template, as
// that will prevent different instantiations of AnyOfMatcher from
// sharing the same EitherOfMatcherImpl<T> class.
template <typename T>
-class EitherOfMatcherImpl : public MatcherInterface<T> {
+class AnyOfMatcherImpl : public MatcherInterface<const T&> {
public:
- EitherOfMatcherImpl(const Matcher<T>& matcher1, const Matcher<T>& matcher2)
- : matcher1_(matcher1), matcher2_(matcher2) {}
+ explicit AnyOfMatcherImpl(std::vector<Matcher<T> > matchers)
+ : matchers_(std::move(matchers)) {}
- virtual void DescribeTo(::std::ostream* os) const {
+ void DescribeTo(::std::ostream* os) const override {
*os << "(";
- matcher1_.DescribeTo(os);
- *os << ") or (";
- matcher2_.DescribeTo(os);
+ for (size_t i = 0; i < matchers_.size(); ++i) {
+ if (i != 0) *os << ") or (";
+ matchers_[i].DescribeTo(os);
+ }
*os << ")";
}
- virtual void DescribeNegationTo(::std::ostream* os) const {
+ void DescribeNegationTo(::std::ostream* os) const override {
*os << "(";
- matcher1_.DescribeNegationTo(os);
- *os << ") and (";
- matcher2_.DescribeNegationTo(os);
+ for (size_t i = 0; i < matchers_.size(); ++i) {
+ if (i != 0) *os << ") and (";
+ matchers_[i].DescribeNegationTo(os);
+ }
*os << ")";
}
- virtual bool MatchAndExplain(T x, MatchResultListener* listener) const {
+ bool MatchAndExplain(const T& x,
+ MatchResultListener* listener) const override {
+ std::string no_match_result;
+
// If either matcher1_ or matcher2_ matches x, we just need to
// explain why *one* of them matches.
- StringMatchResultListener listener1;
- if (matcher1_.MatchAndExplain(x, &listener1)) {
- *listener << listener1.str();
- return true;
- }
-
- StringMatchResultListener listener2;
- if (matcher2_.MatchAndExplain(x, &listener2)) {
- *listener << listener2.str();
- return true;
+ for (size_t i = 0; i < matchers_.size(); ++i) {
+ StringMatchResultListener slistener;
+ if (matchers_[i].MatchAndExplain(x, &slistener)) {
+ *listener << slistener.str();
+ return true;
+ } else {
+ if (no_match_result.empty()) {
+ no_match_result = slistener.str();
+ } else {
+ std::string result = slistener.str();
+ if (!result.empty()) {
+ no_match_result += ", and ";
+ no_match_result += result;
+ }
+ }
+ }
}
// Otherwise we need to explain why *both* of them fail.
- const internal::string s1 = listener1.str();
- const internal::string s2 = listener2.str();
-
- if (s1 == "") {
- *listener << s2;
- } else {
- *listener << s1;
- if (s2 != "") {
- *listener << ", and " << s2;
- }
- }
+ *listener << no_match_result;
return false;
}
private:
- const Matcher<T> matcher1_;
- const Matcher<T> matcher2_;
-
- GTEST_DISALLOW_ASSIGN_(EitherOfMatcherImpl);
+ const std::vector<Matcher<T> > matchers_;
};
-#if GTEST_LANG_CXX11
// AnyOfMatcher is used for the variadic implementation of AnyOf(m_1, m_2, ...).
template <typename... Args>
-using AnyOfMatcher = VariadicMatcher<EitherOfMatcherImpl, Args...>;
+using AnyOfMatcher = VariadicMatcher<AnyOfMatcherImpl, Args...>;
-#endif // GTEST_LANG_CXX11
-
-// Used for implementing the AnyOf(m_1, ..., m_n) matcher, which
-// matches a value that matches at least one of the matchers m_1, ...,
-// and m_n.
-template <typename Matcher1, typename Matcher2>
-class EitherOfMatcher {
+// ConditionalMatcher is the implementation of Conditional(cond, m1, m2)
+template <typename MatcherTrue, typename MatcherFalse>
+class ConditionalMatcher {
public:
- EitherOfMatcher(Matcher1 matcher1, Matcher2 matcher2)
- : matcher1_(matcher1), matcher2_(matcher2) {}
+ ConditionalMatcher(bool condition, MatcherTrue matcher_true,
+ MatcherFalse matcher_false)
+ : condition_(condition),
+ matcher_true_(std::move(matcher_true)),
+ matcher_false_(std::move(matcher_false)) {}
- // This template type conversion operator allows a
- // EitherOfMatcher<Matcher1, Matcher2> object to match any type that
- // both Matcher1 and Matcher2 can match.
template <typename T>
- operator Matcher<T>() const {
- return Matcher<T>(new EitherOfMatcherImpl<T>(
- SafeMatcherCast<T>(matcher1_), SafeMatcherCast<T>(matcher2_)));
+ operator Matcher<T>() const { // NOLINT(runtime/explicit)
+ return condition_ ? SafeMatcherCast<T>(matcher_true_)
+ : SafeMatcherCast<T>(matcher_false_);
}
private:
- Matcher1 matcher1_;
- Matcher2 matcher2_;
+ bool condition_;
+ MatcherTrue matcher_true_;
+ MatcherFalse matcher_false_;
+
+ GTEST_DISALLOW_ASSIGN_(ConditionalMatcher);
+};
+
+// Wrapper for implementation of Any/AllOfArray().
+template <template <class> class MatcherImpl, typename T>
+class SomeOfArrayMatcher {
+ public:
+ // Constructs the matcher from a sequence of element values or
+ // element matchers.
+ template <typename Iter>
+ SomeOfArrayMatcher(Iter first, Iter last) : matchers_(first, last) {}
+
+ template <typename U>
+ operator Matcher<U>() const { // NOLINT
+ using RawU = typename std::decay<U>::type;
+ std::vector<Matcher<RawU>> matchers;
+ for (const auto& matcher : matchers_) {
+ matchers.push_back(MatcherCast<RawU>(matcher));
+ }
+ return Matcher<U>(new MatcherImpl<RawU>(std::move(matchers)));
+ }
- GTEST_DISALLOW_ASSIGN_(EitherOfMatcher);
+ private:
+ const ::std::vector<T> matchers_;
};
+template <typename T>
+using AllOfArrayMatcher = SomeOfArrayMatcher<AllOfMatcherImpl, T>;
+
+template <typename T>
+using AnyOfArrayMatcher = SomeOfArrayMatcher<AnyOfMatcherImpl, T>;
+
// Used for implementing Truly(pred), which turns a predicate into a
// matcher.
template <typename Predicate>
// interested in the address of the argument.
template <typename T>
bool MatchAndExplain(T& x, // NOLINT
- MatchResultListener* /* listener */) const {
+ MatchResultListener* listener) const {
// Without the if-statement, MSVC sometimes warns about converting
// a value to bool (warning 4800).
//
// having no operator!().
if (predicate_(x))
return true;
+ *listener << "didn't satisfy the given predicate";
return false;
}
private:
Predicate predicate_;
-
- GTEST_DISALLOW_ASSIGN_(TrulyMatcher);
};
// Used for implementing Matches(matcher), which turns a matcher into
private:
M matcher_;
-
- GTEST_DISALLOW_ASSIGN_(MatcherAsPredicate);
};
// For implementing ASSERT_THAT() and EXPECT_THAT(). The template
template <typename M>
class PredicateFormatterFromMatcher {
public:
- explicit PredicateFormatterFromMatcher(M m) : matcher_(internal::move(m)) {}
+ explicit PredicateFormatterFromMatcher(M m) : matcher_(std::move(m)) {}
// This template () operator allows a PredicateFormatterFromMatcher
// object to act as a predicate-formatter suitable for using with
// Google Test's EXPECT_PRED_FORMAT1() macro.
template <typename T>
AssertionResult operator()(const char* value_text, const T& x) const {
+#ifndef __clang_analyzer__
// We convert matcher_ to a Matcher<const T&> *now* instead of
// when the PredicateFormatterFromMatcher object was constructed,
// as matcher_ may be polymorphic (e.g. NotNull()) and we won't
// We don't write MatcherCast<const T&> either, as that allows
// potentially unsafe downcasting of the matcher argument.
const Matcher<const T&> matcher = SafeMatcherCast<const T&>(matcher_);
- StringMatchResultListener listener;
- if (MatchPrintAndExplain(x, matcher, &listener))
+
+ // The expected path here is that the matcher should match (i.e. that most
+ // tests pass) so optimize for this case.
+ if (matcher.Matches(x)) {
return AssertionSuccess();
+ }
::std::stringstream ss;
ss << "Value of: " << value_text << "\n"
<< "Expected: ";
matcher.DescribeTo(&ss);
+
+ // Rerun the matcher to "PrintAndExplain" the failure.
+ StringMatchResultListener listener;
+ if (MatchPrintAndExplain(x, matcher, &listener)) {
+ ss << "\n The matcher failed on the initial attempt; but passed when "
+ "rerun to generate the explanation.";
+ }
ss << "\n Actual: " << listener.str();
return AssertionFailure() << ss.str();
+#else
+ return AssertionSuccess();
+#endif
}
private:
const M matcher_;
-
- GTEST_DISALLOW_ASSIGN_(PredicateFormatterFromMatcher);
};
// A helper function for converting a matcher to a predicate-formatter
template <typename M>
inline PredicateFormatterFromMatcher<M>
MakePredicateFormatterFromMatcher(M matcher) {
- return PredicateFormatterFromMatcher<M>(internal::move(matcher));
+ return PredicateFormatterFromMatcher<M>(std::move(matcher));
}
+// Implements the polymorphic IsNan() matcher, which matches any floating type
+// value that is Nan.
+class IsNanMatcher {
+ public:
+ template <typename FloatType>
+ bool MatchAndExplain(const FloatType& f,
+ MatchResultListener* /* listener */) const {
+ return (::std::isnan)(f);
+ }
+
+ void DescribeTo(::std::ostream* os) const { *os << "is NaN"; }
+ void DescribeNegationTo(::std::ostream* os) const {
+ *os << "isn't NaN";
+ }
+};
+
// Implements the polymorphic floating point equality matcher, which matches
// two float values using ULP-based approximation or, optionally, a
// user-specified epsilon. The template is meant to be instantiated with
nan_eq_nan_(nan_eq_nan),
max_abs_error_(max_abs_error) {}
- virtual bool MatchAndExplain(T value,
- MatchResultListener* listener) const {
+ bool MatchAndExplain(T value,
+ MatchResultListener* listener) const override {
const FloatingPoint<FloatType> actual(value), expected(expected_);
// Compares NaNs first, if nan_eq_nan_ is true.
}
const FloatType diff = value - expected_;
- if (fabs(diff) <= max_abs_error_) {
+ if (::std::fabs(diff) <= max_abs_error_) {
return true;
}
}
}
- virtual void DescribeTo(::std::ostream* os) const {
+ void DescribeTo(::std::ostream* os) const override {
// os->precision() returns the previously set precision, which we
// store to restore the ostream to its original configuration
// after outputting.
os->precision(old_precision);
}
- virtual void DescribeNegationTo(::std::ostream* os) const {
+ void DescribeNegationTo(::std::ostream* os) const override {
// As before, get original precision.
const ::std::streamsize old_precision = os->precision(
::std::numeric_limits<FloatType>::digits10 + 2);
const bool nan_eq_nan_;
// max_abs_error will be used for value comparison when >= 0.
const FloatType max_abs_error_;
-
- GTEST_DISALLOW_ASSIGN_(Impl);
};
// The following 3 type conversion operators allow FloatEq(expected) and
// NanSensitiveFloatEq(expected) to be used as a Matcher<float>, a
// Matcher<const float&>, or a Matcher<float&>, but nothing else.
- // (While Google's C++ coding style doesn't allow arguments passed
- // by non-const reference, we may see them in code not conforming to
- // the style. Therefore Google Mock needs to support them.)
operator Matcher<FloatType>() const {
return MakeMatcher(
new Impl<FloatType>(expected_, nan_eq_nan_, max_abs_error_));
const bool nan_eq_nan_;
// max_abs_error will be used for value comparison when >= 0.
const FloatType max_abs_error_;
+};
+
+// A 2-tuple ("binary") wrapper around FloatingEqMatcher:
+// FloatingEq2Matcher() matches (x, y) by matching FloatingEqMatcher(x, false)
+// against y, and FloatingEq2Matcher(e) matches FloatingEqMatcher(x, false, e)
+// against y. The former implements "Eq", the latter "Near". At present, there
+// is no version that compares NaNs as equal.
+template <typename FloatType>
+class FloatingEq2Matcher {
+ public:
+ FloatingEq2Matcher() { Init(-1, false); }
+
+ explicit FloatingEq2Matcher(bool nan_eq_nan) { Init(-1, nan_eq_nan); }
+
+ explicit FloatingEq2Matcher(FloatType max_abs_error) {
+ Init(max_abs_error, false);
+ }
+
+ FloatingEq2Matcher(FloatType max_abs_error, bool nan_eq_nan) {
+ Init(max_abs_error, nan_eq_nan);
+ }
+
+ template <typename T1, typename T2>
+ operator Matcher<::std::tuple<T1, T2>>() const {
+ return MakeMatcher(
+ new Impl<::std::tuple<T1, T2>>(max_abs_error_, nan_eq_nan_));
+ }
+ template <typename T1, typename T2>
+ operator Matcher<const ::std::tuple<T1, T2>&>() const {
+ return MakeMatcher(
+ new Impl<const ::std::tuple<T1, T2>&>(max_abs_error_, nan_eq_nan_));
+ }
+
+ private:
+ static ::std::ostream& GetDesc(::std::ostream& os) { // NOLINT
+ return os << "an almost-equal pair";
+ }
+
+ template <typename Tuple>
+ class Impl : public MatcherInterface<Tuple> {
+ public:
+ Impl(FloatType max_abs_error, bool nan_eq_nan) :
+ max_abs_error_(max_abs_error),
+ nan_eq_nan_(nan_eq_nan) {}
+
+ bool MatchAndExplain(Tuple args,
+ MatchResultListener* listener) const override {
+ if (max_abs_error_ == -1) {
+ FloatingEqMatcher<FloatType> fm(::std::get<0>(args), nan_eq_nan_);
+ return static_cast<Matcher<FloatType>>(fm).MatchAndExplain(
+ ::std::get<1>(args), listener);
+ } else {
+ FloatingEqMatcher<FloatType> fm(::std::get<0>(args), nan_eq_nan_,
+ max_abs_error_);
+ return static_cast<Matcher<FloatType>>(fm).MatchAndExplain(
+ ::std::get<1>(args), listener);
+ }
+ }
+ void DescribeTo(::std::ostream* os) const override {
+ *os << "are " << GetDesc;
+ }
+ void DescribeNegationTo(::std::ostream* os) const override {
+ *os << "aren't " << GetDesc;
+ }
+
+ private:
+ FloatType max_abs_error_;
+ const bool nan_eq_nan_;
+ };
- GTEST_DISALLOW_ASSIGN_(FloatingEqMatcher);
+ void Init(FloatType max_abs_error_val, bool nan_eq_nan_val) {
+ max_abs_error_ = max_abs_error_val;
+ nan_eq_nan_ = nan_eq_nan_val;
+ }
+ FloatType max_abs_error_;
+ bool nan_eq_nan_;
};
// Implements the Pointee(m) matcher for matching a pointer whose
// enough for implementing the DescribeTo() method of Pointee().
template <typename Pointer>
operator Matcher<Pointer>() const {
- return MakeMatcher(new Impl<Pointer>(matcher_));
+ return Matcher<Pointer>(new Impl<const Pointer&>(matcher_));
}
private:
template <typename Pointer>
class Impl : public MatcherInterface<Pointer> {
public:
- typedef typename PointeeOf<GTEST_REMOVE_CONST_( // NOLINT
- GTEST_REMOVE_REFERENCE_(Pointer))>::type Pointee;
+ using Pointee =
+ typename std::pointer_traits<GTEST_REMOVE_REFERENCE_AND_CONST_(
+ Pointer)>::element_type;
explicit Impl(const InnerMatcher& matcher)
: matcher_(MatcherCast<const Pointee&>(matcher)) {}
- virtual void DescribeTo(::std::ostream* os) const {
+ void DescribeTo(::std::ostream* os) const override {
*os << "points to a value that ";
matcher_.DescribeTo(os);
}
- virtual void DescribeNegationTo(::std::ostream* os) const {
+ void DescribeNegationTo(::std::ostream* os) const override {
*os << "does not point to a value that ";
matcher_.DescribeTo(os);
}
- virtual bool MatchAndExplain(Pointer pointer,
- MatchResultListener* listener) const {
- if (GetRawPointer(pointer) == NULL)
- return false;
+ bool MatchAndExplain(Pointer pointer,
+ MatchResultListener* listener) const override {
+ if (GetRawPointer(pointer) == nullptr) return false;
*listener << "which points to ";
return MatchPrintAndExplain(*pointer, matcher_, listener);
private:
const Matcher<const Pointee&> matcher_;
-
- GTEST_DISALLOW_ASSIGN_(Impl);
};
const InnerMatcher matcher_;
+};
+
+// Implements the Pointer(m) matcher
+// Implements the Pointer(m) matcher for matching a pointer that matches matcher
+// m. The pointer can be either raw or smart, and will match `m` against the
+// raw pointer.
+template <typename InnerMatcher>
+class PointerMatcher {
+ public:
+ explicit PointerMatcher(const InnerMatcher& matcher) : matcher_(matcher) {}
+
+ // This type conversion operator template allows Pointer(m) to be
+ // used as a matcher for any pointer type whose pointer type is
+ // compatible with the inner matcher, where type PointerType can be
+ // either a raw pointer or a smart pointer.
+ //
+ // The reason we do this instead of relying on
+ // MakePolymorphicMatcher() is that the latter is not flexible
+ // enough for implementing the DescribeTo() method of Pointer().
+ template <typename PointerType>
+ operator Matcher<PointerType>() const { // NOLINT
+ return Matcher<PointerType>(new Impl<const PointerType&>(matcher_));
+ }
+
+ private:
+ // The monomorphic implementation that works for a particular pointer type.
+ template <typename PointerType>
+ class Impl : public MatcherInterface<PointerType> {
+ public:
+ using Pointer =
+ const typename std::pointer_traits<GTEST_REMOVE_REFERENCE_AND_CONST_(
+ PointerType)>::element_type*;
+
+ explicit Impl(const InnerMatcher& matcher)
+ : matcher_(MatcherCast<Pointer>(matcher)) {}
+
+ void DescribeTo(::std::ostream* os) const override {
+ *os << "is a pointer that ";
+ matcher_.DescribeTo(os);
+ }
+
+ void DescribeNegationTo(::std::ostream* os) const override {
+ *os << "is not a pointer that ";
+ matcher_.DescribeTo(os);
+ }
+
+ bool MatchAndExplain(PointerType pointer,
+ MatchResultListener* listener) const override {
+ *listener << "which is a pointer that ";
+ Pointer p = GetRawPointer(pointer);
+ return MatchPrintAndExplain(p, matcher_, listener);
+ }
+
+ private:
+ Matcher<Pointer> matcher_;
+ };
- GTEST_DISALLOW_ASSIGN_(PointeeMatcher);
+ const InnerMatcher matcher_;
};
+#if GTEST_HAS_RTTI
// Implements the WhenDynamicCastTo<T>(m) matcher that matches a pointer or
// reference that matches inner_matcher when dynamic_cast<T> is applied.
// The result of dynamic_cast<To> is forwarded to the inner matcher.
protected:
const Matcher<To> matcher_;
- static string GetToName() {
-#if GTEST_HAS_RTTI
+ static std::string GetToName() {
return GetTypeName<To>();
-#else // GTEST_HAS_RTTI
- return "the target type";
-#endif // GTEST_HAS_RTTI
}
private:
static void GetCastTypeDescription(::std::ostream* os) {
*os << "when dynamic_cast to " << GetToName() << ", ";
}
-
- GTEST_DISALLOW_ASSIGN_(WhenDynamicCastToMatcherBase);
};
// Primary template.
template <typename From>
bool MatchAndExplain(From from, MatchResultListener* listener) const {
- // TODO(sbenza): Add more detail on failures. ie did the dyn_cast fail?
To to = dynamic_cast<To>(from);
return MatchPrintAndExplain(to, this->matcher_, listener);
}
bool MatchAndExplain(From& from, MatchResultListener* listener) const {
// We don't want an std::bad_cast here, so do the cast with pointers.
To* to = dynamic_cast<To*>(&from);
- if (to == NULL) {
+ if (to == nullptr) {
*listener << "which cannot be dynamic_cast to " << this->GetToName();
return false;
}
return MatchPrintAndExplain(*to, this->matcher_, listener);
}
};
+#endif // GTEST_HAS_RTTI
// Implements the Field() matcher for matching a field (i.e. member
// variable) of an object.
public:
FieldMatcher(FieldType Class::*field,
const Matcher<const FieldType&>& matcher)
- : field_(field), matcher_(matcher) {}
+ : field_(field), matcher_(matcher), whose_field_("whose given field ") {}
+
+ FieldMatcher(const std::string& field_name, FieldType Class::*field,
+ const Matcher<const FieldType&>& matcher)
+ : field_(field),
+ matcher_(matcher),
+ whose_field_("whose field `" + field_name + "` ") {}
void DescribeTo(::std::ostream* os) const {
- *os << "is an object whose given field ";
+ *os << "is an object " << whose_field_;
matcher_.DescribeTo(os);
}
void DescribeNegationTo(::std::ostream* os) const {
- *os << "is an object whose given field ";
+ *os << "is an object " << whose_field_;
matcher_.DescribeNegationTo(os);
}
template <typename T>
bool MatchAndExplain(const T& value, MatchResultListener* listener) const {
+ // FIXME: The dispatch on std::is_pointer was introduced as a workaround for
+ // a compiler bug, and can now be removed.
return MatchAndExplainImpl(
- typename ::testing::internal::
- is_pointer<GTEST_REMOVE_CONST_(T)>::type(),
+ typename std::is_pointer<typename std::remove_const<T>::type>::type(),
value, listener);
}
private:
- // The first argument of MatchAndExplainImpl() is needed to help
- // Symbian's C++ compiler choose which overload to use. Its type is
- // true_type iff the Field() matcher is used to match a pointer.
- bool MatchAndExplainImpl(false_type /* is_not_pointer */, const Class& obj,
+ bool MatchAndExplainImpl(std::false_type /* is_not_pointer */,
+ const Class& obj,
MatchResultListener* listener) const {
- *listener << "whose given field is ";
+ *listener << whose_field_ << "is ";
return MatchPrintAndExplain(obj.*field_, matcher_, listener);
}
- bool MatchAndExplainImpl(true_type /* is_pointer */, const Class* p,
+ bool MatchAndExplainImpl(std::true_type /* is_pointer */, const Class* p,
MatchResultListener* listener) const {
- if (p == NULL)
- return false;
+ if (p == nullptr) return false;
*listener << "which points to an object ";
// Since *p has a field, it must be a class/struct/union type and
// thus cannot be a pointer. Therefore we pass false_type() as
// the first argument.
- return MatchAndExplainImpl(false_type(), *p, listener);
+ return MatchAndExplainImpl(std::false_type(), *p, listener);
}
const FieldType Class::*field_;
const Matcher<const FieldType&> matcher_;
- GTEST_DISALLOW_ASSIGN_(FieldMatcher);
+ // Contains either "whose given field " if the name of the field is unknown
+ // or "whose field `name_of_field` " if the name is known.
+ const std::string whose_field_;
};
// Implements the Property() matcher for matching a property
// (i.e. return value of a getter method) of an object.
-template <typename Class, typename PropertyType>
+//
+// Property is a const-qualified member function of Class returning
+// PropertyType.
+template <typename Class, typename PropertyType, typename Property>
class PropertyMatcher {
public:
- // The property may have a reference type, so 'const PropertyType&'
- // may cause double references and fail to compile. That's why we
- // need GTEST_REFERENCE_TO_CONST, which works regardless of
- // PropertyType being a reference or not.
- typedef GTEST_REFERENCE_TO_CONST_(PropertyType) RefToConstProperty;
+ typedef const PropertyType& RefToConstProperty;
- PropertyMatcher(PropertyType (Class::*property)() const,
+ PropertyMatcher(Property property, const Matcher<RefToConstProperty>& matcher)
+ : property_(property),
+ matcher_(matcher),
+ whose_property_("whose given property ") {}
+
+ PropertyMatcher(const std::string& property_name, Property property,
const Matcher<RefToConstProperty>& matcher)
- : property_(property), matcher_(matcher) {}
+ : property_(property),
+ matcher_(matcher),
+ whose_property_("whose property `" + property_name + "` ") {}
void DescribeTo(::std::ostream* os) const {
- *os << "is an object whose given property ";
+ *os << "is an object " << whose_property_;
matcher_.DescribeTo(os);
}
void DescribeNegationTo(::std::ostream* os) const {
- *os << "is an object whose given property ";
+ *os << "is an object " << whose_property_;
matcher_.DescribeNegationTo(os);
}
template <typename T>
bool MatchAndExplain(const T&value, MatchResultListener* listener) const {
return MatchAndExplainImpl(
- typename ::testing::internal::
- is_pointer<GTEST_REMOVE_CONST_(T)>::type(),
+ typename std::is_pointer<typename std::remove_const<T>::type>::type(),
value, listener);
}
private:
- // The first argument of MatchAndExplainImpl() is needed to help
- // Symbian's C++ compiler choose which overload to use. Its type is
- // true_type iff the Property() matcher is used to match a pointer.
- bool MatchAndExplainImpl(false_type /* is_not_pointer */, const Class& obj,
+ bool MatchAndExplainImpl(std::false_type /* is_not_pointer */,
+ const Class& obj,
MatchResultListener* listener) const {
- *listener << "whose given property is ";
+ *listener << whose_property_ << "is ";
// Cannot pass the return value (for example, int) to MatchPrintAndExplain,
// which takes a non-const reference as argument.
-#if defined(_PREFAST_ ) && _MSC_VER == 1800
- // Workaround bug in VC++ 2013's /analyze parser.
- // https://connect.microsoft.com/VisualStudio/feedback/details/1106363/internal-compiler-error-with-analyze-due-to-failure-to-infer-move
- posix::Abort(); // To make sure it is never run.
- return false;
-#else
RefToConstProperty result = (obj.*property_)();
return MatchPrintAndExplain(result, matcher_, listener);
-#endif
}
- bool MatchAndExplainImpl(true_type /* is_pointer */, const Class* p,
+ bool MatchAndExplainImpl(std::true_type /* is_pointer */, const Class* p,
MatchResultListener* listener) const {
- if (p == NULL)
- return false;
+ if (p == nullptr) return false;
*listener << "which points to an object ";
// Since *p has a property method, it must be a class/struct/union
// type and thus cannot be a pointer. Therefore we pass
// false_type() as the first argument.
- return MatchAndExplainImpl(false_type(), *p, listener);
+ return MatchAndExplainImpl(std::false_type(), *p, listener);
}
- PropertyType (Class::*property_)() const;
+ Property property_;
const Matcher<RefToConstProperty> matcher_;
- GTEST_DISALLOW_ASSIGN_(PropertyMatcher);
+ // Contains either "whose given property " if the name of the property is
+ // unknown or "whose property `name_of_property` " if the name is known.
+ const std::string whose_property_;
};
// Type traits specifying various features of different functors for ResultOf.
// The default template specifies features for functor objects.
-// Functor classes have to typedef argument_type and result_type
-// to be compatible with ResultOf.
template <typename Functor>
struct CallableTraits {
- typedef typename Functor::result_type ResultType;
typedef Functor StorageType;
static void CheckIsValid(Functor /* functor */) {}
+
template <typename T>
- static ResultType Invoke(Functor f, T arg) { return f(arg); }
+ static auto Invoke(Functor f, const T& arg) -> decltype(f(arg)) {
+ return f(arg);
+ }
};
// Specialization for function pointers.
typedef ResType(*StorageType)(ArgType);
static void CheckIsValid(ResType(*f)(ArgType)) {
- GTEST_CHECK_(f != NULL)
+ GTEST_CHECK_(f != nullptr)
<< "NULL function pointer is passed into ResultOf().";
}
template <typename T>
// Implements the ResultOf() matcher for matching a return value of a
// unary function of an object.
-template <typename Callable>
+template <typename Callable, typename InnerMatcher>
class ResultOfMatcher {
public:
- typedef typename CallableTraits<Callable>::ResultType ResultType;
-
- ResultOfMatcher(Callable callable, const Matcher<ResultType>& matcher)
- : callable_(callable), matcher_(matcher) {
+ ResultOfMatcher(Callable callable, InnerMatcher matcher)
+ : callable_(std::move(callable)), matcher_(std::move(matcher)) {
CallableTraits<Callable>::CheckIsValid(callable_);
}
template <typename T>
operator Matcher<T>() const {
- return Matcher<T>(new Impl<T>(callable_, matcher_));
+ return Matcher<T>(new Impl<const T&>(callable_, matcher_));
}
private:
template <typename T>
class Impl : public MatcherInterface<T> {
+ using ResultType = decltype(CallableTraits<Callable>::template Invoke<T>(
+ std::declval<CallableStorageType>(), std::declval<T>()));
+
public:
- Impl(CallableStorageType callable, const Matcher<ResultType>& matcher)
- : callable_(callable), matcher_(matcher) {}
+ template <typename M>
+ Impl(const CallableStorageType& callable, const M& matcher)
+ : callable_(callable), matcher_(MatcherCast<ResultType>(matcher)) {}
- virtual void DescribeTo(::std::ostream* os) const {
+ void DescribeTo(::std::ostream* os) const override {
*os << "is mapped by the given callable to a value that ";
matcher_.DescribeTo(os);
}
- virtual void DescribeNegationTo(::std::ostream* os) const {
+ void DescribeNegationTo(::std::ostream* os) const override {
*os << "is mapped by the given callable to a value that ";
matcher_.DescribeNegationTo(os);
}
- virtual bool MatchAndExplain(T obj, MatchResultListener* listener) const {
+ bool MatchAndExplain(T obj, MatchResultListener* listener) const override {
*listener << "which is mapped by the given callable to ";
- // Cannot pass the return value (for example, int) to
- // MatchPrintAndExplain, which takes a non-const reference as argument.
+ // Cannot pass the return value directly to MatchPrintAndExplain, which
+ // takes a non-const reference as argument.
+ // Also, specifying template argument explicitly is needed because T could
+ // be a non-const reference (e.g. Matcher<Uncopyable&>).
ResultType result =
CallableTraits<Callable>::template Invoke<T>(callable_, obj);
return MatchPrintAndExplain(result, matcher_, listener);
private:
// Functors often define operator() as non-const method even though
- // they are actualy stateless. But we need to use them even when
+ // they are actually stateless. But we need to use them even when
// 'this' is a const pointer. It's the user's responsibility not to
- // use stateful callables with ResultOf(), which does't guarantee
+ // use stateful callables with ResultOf(), which doesn't guarantee
// how many times the callable will be invoked.
mutable CallableStorageType callable_;
const Matcher<ResultType> matcher_;
-
- GTEST_DISALLOW_ASSIGN_(Impl);
}; // class Impl
const CallableStorageType callable_;
- const Matcher<ResultType> matcher_;
-
- GTEST_DISALLOW_ASSIGN_(ResultOfMatcher);
+ const InnerMatcher matcher_;
};
// Implements a matcher that checks the size of an STL-style container.
template <typename Container>
operator Matcher<Container>() const {
- return MakeMatcher(new Impl<Container>(size_matcher_));
+ return Matcher<Container>(new Impl<const Container&>(size_matcher_));
}
template <typename Container>
class Impl : public MatcherInterface<Container> {
public:
- typedef internal::StlContainerView<
- GTEST_REMOVE_REFERENCE_AND_CONST_(Container)> ContainerView;
- typedef typename ContainerView::type::size_type SizeType;
+ using SizeType = decltype(std::declval<Container>().size());
explicit Impl(const SizeMatcher& size_matcher)
: size_matcher_(MatcherCast<SizeType>(size_matcher)) {}
- virtual void DescribeTo(::std::ostream* os) const {
+ void DescribeTo(::std::ostream* os) const override {
*os << "size ";
size_matcher_.DescribeTo(os);
}
- virtual void DescribeNegationTo(::std::ostream* os) const {
+ void DescribeNegationTo(::std::ostream* os) const override {
*os << "size ";
size_matcher_.DescribeNegationTo(os);
}
- virtual bool MatchAndExplain(Container container,
- MatchResultListener* listener) const {
+ bool MatchAndExplain(Container container,
+ MatchResultListener* listener) const override {
SizeType size = container.size();
StringMatchResultListener size_listener;
const bool result = size_matcher_.MatchAndExplain(size, &size_listener);
private:
const Matcher<SizeType> size_matcher_;
- GTEST_DISALLOW_ASSIGN_(Impl);
};
private:
const SizeMatcher size_matcher_;
- GTEST_DISALLOW_ASSIGN_(SizeIsMatcher);
};
// Implements a matcher that checks the begin()..end() distance of an STL-style
template <typename Container>
operator Matcher<Container>() const {
- return MakeMatcher(new Impl<Container>(distance_matcher_));
+ return Matcher<Container>(new Impl<const Container&>(distance_matcher_));
}
template <typename Container>
explicit Impl(const DistanceMatcher& distance_matcher)
: distance_matcher_(MatcherCast<DistanceType>(distance_matcher)) {}
- virtual void DescribeTo(::std::ostream* os) const {
+ void DescribeTo(::std::ostream* os) const override {
*os << "distance between begin() and end() ";
distance_matcher_.DescribeTo(os);
}
- virtual void DescribeNegationTo(::std::ostream* os) const {
+ void DescribeNegationTo(::std::ostream* os) const override {
*os << "distance between begin() and end() ";
distance_matcher_.DescribeNegationTo(os);
}
- virtual bool MatchAndExplain(Container container,
- MatchResultListener* listener) const {
-#if GTEST_HAS_STD_BEGIN_AND_END_
+ bool MatchAndExplain(Container container,
+ MatchResultListener* listener) const override {
using std::begin;
using std::end;
DistanceType distance = std::distance(begin(container), end(container));
-#else
- DistanceType distance = std::distance(container.begin(), container.end());
-#endif
StringMatchResultListener distance_listener;
const bool result =
distance_matcher_.MatchAndExplain(distance, &distance_listener);
private:
const Matcher<DistanceType> distance_matcher_;
- GTEST_DISALLOW_ASSIGN_(Impl);
};
private:
const DistanceMatcher distance_matcher_;
- GTEST_DISALLOW_ASSIGN_(BeginEndDistanceIsMatcher);
};
// Implements an equality matcher for any STL-style container whose elements
typedef typename View::type StlContainer;
typedef typename View::const_reference StlContainerReference;
+ static_assert(!std::is_const<Container>::value,
+ "Container type must not be const");
+ static_assert(!std::is_reference<Container>::value,
+ "Container type must not be a reference");
+
// We make a copy of expected in case the elements in it are modified
// after this matcher is created.
explicit ContainerEqMatcher(const Container& expected)
- : expected_(View::Copy(expected)) {
- // Makes sure the user doesn't instantiate this class template
- // with a const or reference type.
- (void)testing::StaticAssertTypeEq<Container,
- GTEST_REMOVE_REFERENCE_AND_CONST_(Container)>();
- }
+ : expected_(View::Copy(expected)) {}
void DescribeTo(::std::ostream* os) const {
*os << "equals ";
template <typename LhsContainer>
bool MatchAndExplain(const LhsContainer& lhs,
MatchResultListener* listener) const {
- // GTEST_REMOVE_CONST_() is needed to work around an MSVC 8.0 bug
- // that causes LhsContainer to be a const type sometimes.
- typedef internal::StlContainerView<GTEST_REMOVE_CONST_(LhsContainer)>
+ typedef internal::StlContainerView<
+ typename std::remove_const<LhsContainer>::type>
LhsView;
typedef typename LhsView::type LhsStlContainer;
StlContainerReference lhs_stl_container = LhsView::ConstReference(lhs);
return true;
::std::ostream* const os = listener->stream();
- if (os != NULL) {
+ if (os != nullptr) {
// Something is different. Check for extra values first.
bool printed_header = false;
for (typename LhsStlContainer::const_iterator it =
private:
const StlContainer expected_;
-
- GTEST_DISALLOW_ASSIGN_(ContainerEqMatcher);
};
// A comparator functor that uses the < operator to compare two values.
Impl(const Comparator& comparator, const ContainerMatcher& matcher)
: comparator_(comparator), matcher_(matcher) {}
- virtual void DescribeTo(::std::ostream* os) const {
+ void DescribeTo(::std::ostream* os) const override {
*os << "(when sorted) ";
matcher_.DescribeTo(os);
}
- virtual void DescribeNegationTo(::std::ostream* os) const {
+ void DescribeNegationTo(::std::ostream* os) const override {
*os << "(when sorted) ";
matcher_.DescribeNegationTo(os);
}
- virtual bool MatchAndExplain(LhsContainer lhs,
- MatchResultListener* listener) const {
+ bool MatchAndExplain(LhsContainer lhs,
+ MatchResultListener* listener) const override {
LhsStlContainerReference lhs_stl_container = LhsView::ConstReference(lhs);
::std::vector<LhsValue> sorted_container(lhs_stl_container.begin(),
lhs_stl_container.end());
private:
const Comparator comparator_;
const ContainerMatcher matcher_;
-
- GTEST_DISALLOW_ASSIGN_(WhenSortedByMatcher);
};
// Implements Pointwise(tuple_matcher, rhs_container). tuple_matcher
-// must be able to be safely cast to Matcher<tuple<const T1&, const
+// must be able to be safely cast to Matcher<std::tuple<const T1&, const
// T2&> >, where T1 and T2 are the types of elements in the LHS
// container and the RHS container respectively.
template <typename TupleMatcher, typename RhsContainer>
class PointwiseMatcher {
+ GTEST_COMPILE_ASSERT_(
+ !IsHashTable<GTEST_REMOVE_REFERENCE_AND_CONST_(RhsContainer)>::value,
+ use_UnorderedPointwise_with_hash_tables);
+
public:
typedef internal::StlContainerView<RhsContainer> RhsView;
typedef typename RhsView::type RhsStlContainer;
typedef typename RhsStlContainer::value_type RhsValue;
+ static_assert(!std::is_const<RhsContainer>::value,
+ "RhsContainer type must not be const");
+ static_assert(!std::is_reference<RhsContainer>::value,
+ "RhsContainer type must not be a reference");
+
// Like ContainerEq, we make a copy of rhs in case the elements in
// it are modified after this matcher is created.
PointwiseMatcher(const TupleMatcher& tuple_matcher, const RhsContainer& rhs)
- : tuple_matcher_(tuple_matcher), rhs_(RhsView::Copy(rhs)) {
- // Makes sure the user doesn't instantiate this class template
- // with a const or reference type.
- (void)testing::StaticAssertTypeEq<RhsContainer,
- GTEST_REMOVE_REFERENCE_AND_CONST_(RhsContainer)>();
- }
+ : tuple_matcher_(tuple_matcher), rhs_(RhsView::Copy(rhs)) {}
template <typename LhsContainer>
operator Matcher<LhsContainer>() const {
- return MakeMatcher(new Impl<LhsContainer>(tuple_matcher_, rhs_));
+ GTEST_COMPILE_ASSERT_(
+ !IsHashTable<GTEST_REMOVE_REFERENCE_AND_CONST_(LhsContainer)>::value,
+ use_UnorderedPointwise_with_hash_tables);
+
+ return Matcher<LhsContainer>(
+ new Impl<const LhsContainer&>(tuple_matcher_, rhs_));
}
template <typename LhsContainer>
// reference, as they may be expensive to copy. We must use tuple
// instead of pair here, as a pair cannot hold references (C++ 98,
// 20.2.2 [lib.pairs]).
- typedef ::testing::tuple<const LhsValue&, const RhsValue&> InnerMatcherArg;
+ typedef ::std::tuple<const LhsValue&, const RhsValue&> InnerMatcherArg;
Impl(const TupleMatcher& tuple_matcher, const RhsStlContainer& rhs)
// mono_tuple_matcher_ holds a monomorphic version of the tuple matcher.
: mono_tuple_matcher_(SafeMatcherCast<InnerMatcherArg>(tuple_matcher)),
rhs_(rhs) {}
- virtual void DescribeTo(::std::ostream* os) const {
+ void DescribeTo(::std::ostream* os) const override {
*os << "contains " << rhs_.size()
<< " values, where each value and its corresponding value in ";
UniversalPrinter<RhsStlContainer>::Print(rhs_, os);
*os << " ";
mono_tuple_matcher_.DescribeTo(os);
}
- virtual void DescribeNegationTo(::std::ostream* os) const {
+ void DescribeNegationTo(::std::ostream* os) const override {
*os << "doesn't contain exactly " << rhs_.size()
<< " values, or contains a value x at some index i"
<< " where x and the i-th value of ";
mono_tuple_matcher_.DescribeNegationTo(os);
}
- virtual bool MatchAndExplain(LhsContainer lhs,
- MatchResultListener* listener) const {
+ bool MatchAndExplain(LhsContainer lhs,
+ MatchResultListener* listener) const override {
LhsStlContainerReference lhs_stl_container = LhsView::ConstReference(lhs);
const size_t actual_size = lhs_stl_container.size();
if (actual_size != rhs_.size()) {
typename LhsStlContainer::const_iterator left = lhs_stl_container.begin();
typename RhsStlContainer::const_iterator right = rhs_.begin();
for (size_t i = 0; i != actual_size; ++i, ++left, ++right) {
- const InnerMatcherArg value_pair(*left, *right);
-
if (listener->IsInterested()) {
StringMatchResultListener inner_listener;
+ // Create InnerMatcherArg as a temporarily object to avoid it outlives
+ // *left and *right. Dereference or the conversion to `const T&` may
+ // return temp objects, e.g. for vector<bool>.
if (!mono_tuple_matcher_.MatchAndExplain(
- value_pair, &inner_listener)) {
+ InnerMatcherArg(ImplicitCast_<const LhsValue&>(*left),
+ ImplicitCast_<const RhsValue&>(*right)),
+ &inner_listener)) {
*listener << "where the value pair (";
UniversalPrint(*left, listener->stream());
*listener << ", ";
return false;
}
} else {
- if (!mono_tuple_matcher_.Matches(value_pair))
+ if (!mono_tuple_matcher_.Matches(
+ InnerMatcherArg(ImplicitCast_<const LhsValue&>(*left),
+ ImplicitCast_<const RhsValue&>(*right))))
return false;
}
}
private:
const Matcher<InnerMatcherArg> mono_tuple_matcher_;
const RhsStlContainer rhs_;
-
- GTEST_DISALLOW_ASSIGN_(Impl);
};
private:
const TupleMatcher tuple_matcher_;
const RhsStlContainer rhs_;
-
- GTEST_DISALLOW_ASSIGN_(PointwiseMatcher);
};
// Holds the logic common to ContainsMatcherImpl and EachMatcherImpl.
return all_elements_should_match;
}
+ bool MatchAndExplainImpl(const Matcher<size_t>& count_matcher,
+ Container container,
+ MatchResultListener* listener) const {
+ StlContainerReference stl_container = View::ConstReference(container);
+ size_t i = 0;
+ std::vector<size_t> match_elements;
+ for (auto it = stl_container.begin(); it != stl_container.end();
+ ++it, ++i) {
+ StringMatchResultListener inner_listener;
+ const bool matches = inner_matcher_.MatchAndExplain(*it, &inner_listener);
+ if (matches) {
+ match_elements.push_back(i);
+ }
+ }
+ if (listener->IsInterested()) {
+ if (match_elements.empty()) {
+ *listener << "has no element that matches";
+ } else if (match_elements.size() == 1) {
+ *listener << "whose element #" << match_elements[0] << " matches";
+ } else {
+ *listener << "whose elements (";
+ std::string sep = "";
+ for (size_t e : match_elements) {
+ *listener << sep << e;
+ sep = ", ";
+ }
+ *listener << ") match";
+ }
+ }
+ StringMatchResultListener count_listener;
+ if (count_matcher.MatchAndExplain(match_elements.size(), &count_listener)) {
+ *listener << " and whose match quantity of " << match_elements.size()
+ << " matches";
+ PrintIfNotEmpty(count_listener.str(), listener->stream());
+ return true;
+ } else {
+ if (match_elements.empty()) {
+ *listener << " and";
+ } else {
+ *listener << " but";
+ }
+ *listener << " whose match quantity of " << match_elements.size()
+ << " does not match";
+ PrintIfNotEmpty(count_listener.str(), listener->stream());
+ return false;
+ }
+ }
+
protected:
const Matcher<const Element&> inner_matcher_;
-
- GTEST_DISALLOW_ASSIGN_(QuantifierMatcherImpl);
};
// Implements Contains(element_matcher) for the given argument type Container.
: QuantifierMatcherImpl<Container>(inner_matcher) {}
// Describes what this matcher does.
- virtual void DescribeTo(::std::ostream* os) const {
+ void DescribeTo(::std::ostream* os) const override {
*os << "contains at least one element that ";
this->inner_matcher_.DescribeTo(os);
}
- virtual void DescribeNegationTo(::std::ostream* os) const {
+ void DescribeNegationTo(::std::ostream* os) const override {
*os << "doesn't contain any element that ";
this->inner_matcher_.DescribeTo(os);
}
- virtual bool MatchAndExplain(Container container,
- MatchResultListener* listener) const {
+ bool MatchAndExplain(Container container,
+ MatchResultListener* listener) const override {
return this->MatchAndExplainImpl(false, container, listener);
}
-
- private:
- GTEST_DISALLOW_ASSIGN_(ContainsMatcherImpl);
};
// Implements Each(element_matcher) for the given argument type Container.
: QuantifierMatcherImpl<Container>(inner_matcher) {}
// Describes what this matcher does.
- virtual void DescribeTo(::std::ostream* os) const {
+ void DescribeTo(::std::ostream* os) const override {
*os << "only contains elements that ";
this->inner_matcher_.DescribeTo(os);
}
- virtual void DescribeNegationTo(::std::ostream* os) const {
+ void DescribeNegationTo(::std::ostream* os) const override {
*os << "contains some element that ";
this->inner_matcher_.DescribeNegationTo(os);
}
- virtual bool MatchAndExplain(Container container,
- MatchResultListener* listener) const {
+ bool MatchAndExplain(Container container,
+ MatchResultListener* listener) const override {
return this->MatchAndExplainImpl(true, container, listener);
}
+};
+
+// Implements Contains(element_matcher).Times(n) for the given argument type
+// Container.
+template <typename Container>
+class ContainsTimesMatcherImpl : public QuantifierMatcherImpl<Container> {
+ public:
+ template <typename InnerMatcher>
+ explicit ContainsTimesMatcherImpl(InnerMatcher inner_matcher,
+ Matcher<size_t> count_matcher)
+ : QuantifierMatcherImpl<Container>(inner_matcher),
+ count_matcher_(std::move(count_matcher)) {}
+
+ void DescribeTo(::std::ostream* os) const override {
+ *os << "quantity of elements that match ";
+ this->inner_matcher_.DescribeTo(os);
+ *os << " ";
+ count_matcher_.DescribeTo(os);
+ }
+
+ void DescribeNegationTo(::std::ostream* os) const override {
+ *os << "quantity of elements that match ";
+ this->inner_matcher_.DescribeTo(os);
+ *os << " ";
+ count_matcher_.DescribeNegationTo(os);
+ }
+
+ bool MatchAndExplain(Container container,
+ MatchResultListener* listener) const override {
+ return this->MatchAndExplainImpl(count_matcher_, container, listener);
+ }
+
+ private:
+ const Matcher<size_t> count_matcher_;
+};
+
+// Implements polymorphic Contains(element_matcher).Times(n).
+template <typename M>
+class ContainsTimesMatcher {
+ public:
+ explicit ContainsTimesMatcher(M m, Matcher<size_t> count_matcher)
+ : inner_matcher_(m), count_matcher_(std::move(count_matcher)) {}
+
+ template <typename Container>
+ operator Matcher<Container>() const { // NOLINT
+ return Matcher<Container>(new ContainsTimesMatcherImpl<const Container&>(
+ inner_matcher_, count_matcher_));
+ }
private:
- GTEST_DISALLOW_ASSIGN_(EachMatcherImpl);
+ const M inner_matcher_;
+ const Matcher<size_t> count_matcher_;
};
// Implements polymorphic Contains(element_matcher).
explicit ContainsMatcher(M m) : inner_matcher_(m) {}
template <typename Container>
- operator Matcher<Container>() const {
- return MakeMatcher(new ContainsMatcherImpl<Container>(inner_matcher_));
+ operator Matcher<Container>() const { // NOLINT
+ return Matcher<Container>(
+ new ContainsMatcherImpl<const Container&>(inner_matcher_));
+ }
+
+ ContainsTimesMatcher<M> Times(Matcher<size_t> count_matcher) const {
+ return ContainsTimesMatcher<M>(inner_matcher_, std::move(count_matcher));
}
private:
const M inner_matcher_;
-
- GTEST_DISALLOW_ASSIGN_(ContainsMatcher);
};
// Implements polymorphic Each(element_matcher).
explicit EachMatcher(M m) : inner_matcher_(m) {}
template <typename Container>
- operator Matcher<Container>() const {
- return MakeMatcher(new EachMatcherImpl<Container>(inner_matcher_));
+ operator Matcher<Container>() const { // NOLINT
+ return Matcher<Container>(
+ new EachMatcherImpl<const Container&>(inner_matcher_));
}
private:
const M inner_matcher_;
-
- GTEST_DISALLOW_ASSIGN_(EachMatcher);
};
+struct Rank1 {};
+struct Rank0 : Rank1 {};
+
+namespace pair_getters {
+using std::get;
+template <typename T>
+auto First(T& x, Rank1) -> decltype(get<0>(x)) { // NOLINT
+ return get<0>(x);
+}
+template <typename T>
+auto First(T& x, Rank0) -> decltype((x.first)) { // NOLINT
+ return x.first;
+}
+
+template <typename T>
+auto Second(T& x, Rank1) -> decltype(get<1>(x)) { // NOLINT
+ return get<1>(x);
+}
+template <typename T>
+auto Second(T& x, Rank0) -> decltype((x.second)) { // NOLINT
+ return x.second;
+}
+} // namespace pair_getters
+
// Implements Key(inner_matcher) for the given argument pair type.
// Key(inner_matcher) matches an std::pair whose 'first' field matches
// inner_matcher. For example, Contains(Key(Ge(5))) can be used to match an
testing::SafeMatcherCast<const KeyType&>(inner_matcher)) {
}
- // Returns true iff 'key_value.first' (the key) matches the inner matcher.
- virtual bool MatchAndExplain(PairType key_value,
- MatchResultListener* listener) const {
+ // Returns true if and only if 'key_value.first' (the key) matches the inner
+ // matcher.
+ bool MatchAndExplain(PairType key_value,
+ MatchResultListener* listener) const override {
StringMatchResultListener inner_listener;
- const bool match = inner_matcher_.MatchAndExplain(key_value.first,
- &inner_listener);
- const internal::string explanation = inner_listener.str();
+ const bool match = inner_matcher_.MatchAndExplain(
+ pair_getters::First(key_value, Rank0()), &inner_listener);
+ const std::string explanation = inner_listener.str();
if (explanation != "") {
*listener << "whose first field is a value " << explanation;
}
}
// Describes what this matcher does.
- virtual void DescribeTo(::std::ostream* os) const {
+ void DescribeTo(::std::ostream* os) const override {
*os << "has a key that ";
inner_matcher_.DescribeTo(os);
}
// Describes what the negation of this matcher does.
- virtual void DescribeNegationTo(::std::ostream* os) const {
+ void DescribeNegationTo(::std::ostream* os) const override {
*os << "doesn't have a key that ";
inner_matcher_.DescribeTo(os);
}
private:
const Matcher<const KeyType&> inner_matcher_;
-
- GTEST_DISALLOW_ASSIGN_(KeyMatcherImpl);
};
// Implements polymorphic Key(matcher_for_key).
template <typename M>
class KeyMatcher {
public:
- explicit KeyMatcher(M m) : matcher_for_key_(m) {}
+ explicit KeyMatcher(M m) : matcher_for_key_(m) {}
+
+ template <typename PairType>
+ operator Matcher<PairType>() const {
+ return Matcher<PairType>(
+ new KeyMatcherImpl<const PairType&>(matcher_for_key_));
+ }
+
+ private:
+ const M matcher_for_key_;
+};
+
+// Implements polymorphic Address(matcher_for_address).
+template <typename InnerMatcher>
+class AddressMatcher {
+ public:
+ explicit AddressMatcher(InnerMatcher m) : matcher_(m) {}
- template <typename PairType>
- operator Matcher<PairType>() const {
- return MakeMatcher(new KeyMatcherImpl<PairType>(matcher_for_key_));
+ template <typename Type>
+ operator Matcher<Type>() const { // NOLINT
+ return Matcher<Type>(new Impl<const Type&>(matcher_));
}
private:
- const M matcher_for_key_;
+ // The monomorphic implementation that works for a particular object type.
+ template <typename Type>
+ class Impl : public MatcherInterface<Type> {
+ public:
+ using Address = const GTEST_REMOVE_REFERENCE_AND_CONST_(Type) *;
+ explicit Impl(const InnerMatcher& matcher)
+ : matcher_(MatcherCast<Address>(matcher)) {}
+
+ void DescribeTo(::std::ostream* os) const override {
+ *os << "has address that ";
+ matcher_.DescribeTo(os);
+ }
+
+ void DescribeNegationTo(::std::ostream* os) const override {
+ *os << "does not have address that ";
+ matcher_.DescribeTo(os);
+ }
+
+ bool MatchAndExplain(Type object,
+ MatchResultListener* listener) const override {
+ *listener << "which has address ";
+ Address address = std::addressof(object);
+ return MatchPrintAndExplain(address, matcher_, listener);
+ }
- GTEST_DISALLOW_ASSIGN_(KeyMatcher);
+ private:
+ const Matcher<Address> matcher_;
+ };
+ const InnerMatcher matcher_;
};
// Implements Pair(first_matcher, second_matcher) for the given argument pair
}
// Describes what this matcher does.
- virtual void DescribeTo(::std::ostream* os) const {
+ void DescribeTo(::std::ostream* os) const override {
*os << "has a first field that ";
first_matcher_.DescribeTo(os);
*os << ", and has a second field that ";
}
// Describes what the negation of this matcher does.
- virtual void DescribeNegationTo(::std::ostream* os) const {
+ void DescribeNegationTo(::std::ostream* os) const override {
*os << "has a first field that ";
first_matcher_.DescribeNegationTo(os);
*os << ", or has a second field that ";
second_matcher_.DescribeNegationTo(os);
}
- // Returns true iff 'a_pair.first' matches first_matcher and 'a_pair.second'
- // matches second_matcher.
- virtual bool MatchAndExplain(PairType a_pair,
- MatchResultListener* listener) const {
+ // Returns true if and only if 'a_pair.first' matches first_matcher and
+ // 'a_pair.second' matches second_matcher.
+ bool MatchAndExplain(PairType a_pair,
+ MatchResultListener* listener) const override {
if (!listener->IsInterested()) {
// If the listener is not interested, we don't need to construct the
// explanation.
- return first_matcher_.Matches(a_pair.first) &&
- second_matcher_.Matches(a_pair.second);
+ return first_matcher_.Matches(pair_getters::First(a_pair, Rank0())) &&
+ second_matcher_.Matches(pair_getters::Second(a_pair, Rank0()));
}
StringMatchResultListener first_inner_listener;
- if (!first_matcher_.MatchAndExplain(a_pair.first,
+ if (!first_matcher_.MatchAndExplain(pair_getters::First(a_pair, Rank0()),
&first_inner_listener)) {
*listener << "whose first field does not match";
PrintIfNotEmpty(first_inner_listener.str(), listener->stream());
return false;
}
StringMatchResultListener second_inner_listener;
- if (!second_matcher_.MatchAndExplain(a_pair.second,
+ if (!second_matcher_.MatchAndExplain(pair_getters::Second(a_pair, Rank0()),
&second_inner_listener)) {
*listener << "whose second field does not match";
PrintIfNotEmpty(second_inner_listener.str(), listener->stream());
}
private:
- void ExplainSuccess(const internal::string& first_explanation,
- const internal::string& second_explanation,
+ void ExplainSuccess(const std::string& first_explanation,
+ const std::string& second_explanation,
MatchResultListener* listener) const {
*listener << "whose both fields match";
if (first_explanation != "") {
const Matcher<const FirstType&> first_matcher_;
const Matcher<const SecondType&> second_matcher_;
-
- GTEST_DISALLOW_ASSIGN_(PairMatcherImpl);
};
// Implements polymorphic Pair(first_matcher, second_matcher).
template <typename PairType>
operator Matcher<PairType> () const {
- return MakeMatcher(
- new PairMatcherImpl<PairType>(
- first_matcher_, second_matcher_));
+ return Matcher<PairType>(
+ new PairMatcherImpl<const PairType&>(first_matcher_, second_matcher_));
}
private:
const FirstMatcher first_matcher_;
const SecondMatcher second_matcher_;
+};
+
+template <typename T, size_t... I>
+auto UnpackStructImpl(const T& t, IndexSequence<I...>, int)
+ -> decltype(std::tie(get<I>(t)...)) {
+ static_assert(std::tuple_size<T>::value == sizeof...(I),
+ "Number of arguments doesn't match the number of fields.");
+ return std::tie(get<I>(t)...);
+}
+
+#if defined(__cpp_structured_bindings) && __cpp_structured_bindings >= 201606
+template <typename T>
+auto UnpackStructImpl(const T& t, MakeIndexSequence<1>, char) {
+ const auto& [a] = t;
+ return std::tie(a);
+}
+template <typename T>
+auto UnpackStructImpl(const T& t, MakeIndexSequence<2>, char) {
+ const auto& [a, b] = t;
+ return std::tie(a, b);
+}
+template <typename T>
+auto UnpackStructImpl(const T& t, MakeIndexSequence<3>, char) {
+ const auto& [a, b, c] = t;
+ return std::tie(a, b, c);
+}
+template <typename T>
+auto UnpackStructImpl(const T& t, MakeIndexSequence<4>, char) {
+ const auto& [a, b, c, d] = t;
+ return std::tie(a, b, c, d);
+}
+template <typename T>
+auto UnpackStructImpl(const T& t, MakeIndexSequence<5>, char) {
+ const auto& [a, b, c, d, e] = t;
+ return std::tie(a, b, c, d, e);
+}
+template <typename T>
+auto UnpackStructImpl(const T& t, MakeIndexSequence<6>, char) {
+ const auto& [a, b, c, d, e, f] = t;
+ return std::tie(a, b, c, d, e, f);
+}
+template <typename T>
+auto UnpackStructImpl(const T& t, MakeIndexSequence<7>, char) {
+ const auto& [a, b, c, d, e, f, g] = t;
+ return std::tie(a, b, c, d, e, f, g);
+}
+template <typename T>
+auto UnpackStructImpl(const T& t, MakeIndexSequence<8>, char) {
+ const auto& [a, b, c, d, e, f, g, h] = t;
+ return std::tie(a, b, c, d, e, f, g, h);
+}
+template <typename T>
+auto UnpackStructImpl(const T& t, MakeIndexSequence<9>, char) {
+ const auto& [a, b, c, d, e, f, g, h, i] = t;
+ return std::tie(a, b, c, d, e, f, g, h, i);
+}
+template <typename T>
+auto UnpackStructImpl(const T& t, MakeIndexSequence<10>, char) {
+ const auto& [a, b, c, d, e, f, g, h, i, j] = t;
+ return std::tie(a, b, c, d, e, f, g, h, i, j);
+}
+template <typename T>
+auto UnpackStructImpl(const T& t, MakeIndexSequence<11>, char) {
+ const auto& [a, b, c, d, e, f, g, h, i, j, k] = t;
+ return std::tie(a, b, c, d, e, f, g, h, i, j, k);
+}
+template <typename T>
+auto UnpackStructImpl(const T& t, MakeIndexSequence<12>, char) {
+ const auto& [a, b, c, d, e, f, g, h, i, j, k, l] = t;
+ return std::tie(a, b, c, d, e, f, g, h, i, j, k, l);
+}
+template <typename T>
+auto UnpackStructImpl(const T& t, MakeIndexSequence<13>, char) {
+ const auto& [a, b, c, d, e, f, g, h, i, j, k, l, m] = t;
+ return std::tie(a, b, c, d, e, f, g, h, i, j, k, l, m);
+}
+template <typename T>
+auto UnpackStructImpl(const T& t, MakeIndexSequence<14>, char) {
+ const auto& [a, b, c, d, e, f, g, h, i, j, k, l, m, n] = t;
+ return std::tie(a, b, c, d, e, f, g, h, i, j, k, l, m, n);
+}
+template <typename T>
+auto UnpackStructImpl(const T& t, MakeIndexSequence<15>, char) {
+ const auto& [a, b, c, d, e, f, g, h, i, j, k, l, m, n, o] = t;
+ return std::tie(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o);
+}
+template <typename T>
+auto UnpackStructImpl(const T& t, MakeIndexSequence<16>, char) {
+ const auto& [a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p] = t;
+ return std::tie(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p);
+}
+#endif // defined(__cpp_structured_bindings)
+
+template <size_t I, typename T>
+auto UnpackStruct(const T& t)
+ -> decltype((UnpackStructImpl)(t, MakeIndexSequence<I>{}, 0)) {
+ return (UnpackStructImpl)(t, MakeIndexSequence<I>{}, 0);
+}
+
+// Helper function to do comma folding in C++11.
+// The array ensures left-to-right order of evaluation.
+// Usage: VariadicExpand({expr...});
+template <typename T, size_t N>
+void VariadicExpand(const T (&)[N]) {}
+
+template <typename Struct, typename StructSize>
+class FieldsAreMatcherImpl;
+
+template <typename Struct, size_t... I>
+class FieldsAreMatcherImpl<Struct, IndexSequence<I...>>
+ : public MatcherInterface<Struct> {
+ using UnpackedType =
+ decltype(UnpackStruct<sizeof...(I)>(std::declval<const Struct&>()));
+ using MatchersType = std::tuple<
+ Matcher<const typename std::tuple_element<I, UnpackedType>::type&>...>;
+
+ public:
+ template <typename Inner>
+ explicit FieldsAreMatcherImpl(const Inner& matchers)
+ : matchers_(testing::SafeMatcherCast<
+ const typename std::tuple_element<I, UnpackedType>::type&>(
+ std::get<I>(matchers))...) {}
+
+ void DescribeTo(::std::ostream* os) const override {
+ const char* separator = "";
+ VariadicExpand(
+ {(*os << separator << "has field #" << I << " that ",
+ std::get<I>(matchers_).DescribeTo(os), separator = ", and ")...});
+ }
+
+ void DescribeNegationTo(::std::ostream* os) const override {
+ const char* separator = "";
+ VariadicExpand({(*os << separator << "has field #" << I << " that ",
+ std::get<I>(matchers_).DescribeNegationTo(os),
+ separator = ", or ")...});
+ }
+
+ bool MatchAndExplain(Struct t, MatchResultListener* listener) const override {
+ return MatchInternal((UnpackStruct<sizeof...(I)>)(t), listener);
+ }
+
+ private:
+ bool MatchInternal(UnpackedType tuple, MatchResultListener* listener) const {
+ if (!listener->IsInterested()) {
+ // If the listener is not interested, we don't need to construct the
+ // explanation.
+ bool good = true;
+ VariadicExpand({good = good && std::get<I>(matchers_).Matches(
+ std::get<I>(tuple))...});
+ return good;
+ }
+
+ size_t failed_pos = ~size_t{};
+
+ std::vector<StringMatchResultListener> inner_listener(sizeof...(I));
+
+ VariadicExpand(
+ {failed_pos == ~size_t{} && !std::get<I>(matchers_).MatchAndExplain(
+ std::get<I>(tuple), &inner_listener[I])
+ ? failed_pos = I
+ : 0 ...});
+ if (failed_pos != ~size_t{}) {
+ *listener << "whose field #" << failed_pos << " does not match";
+ PrintIfNotEmpty(inner_listener[failed_pos].str(), listener->stream());
+ return false;
+ }
+
+ *listener << "whose all elements match";
+ const char* separator = ", where";
+ for (size_t index = 0; index < sizeof...(I); ++index) {
+ const std::string str = inner_listener[index].str();
+ if (!str.empty()) {
+ *listener << separator << " field #" << index << " is a value " << str;
+ separator = ", and";
+ }
+ }
+
+ return true;
+ }
- GTEST_DISALLOW_ASSIGN_(PairMatcher);
+ MatchersType matchers_;
+};
+
+template <typename... Inner>
+class FieldsAreMatcher {
+ public:
+ explicit FieldsAreMatcher(Inner... inner) : matchers_(std::move(inner)...) {}
+
+ template <typename Struct>
+ operator Matcher<Struct>() const { // NOLINT
+ return Matcher<Struct>(
+ new FieldsAreMatcherImpl<const Struct&, IndexSequenceFor<Inner...>>(
+ matchers_));
+ }
+
+ private:
+ std::tuple<Inner...> matchers_;
};
// Implements ElementsAre() and ElementsAreArray().
}
// Describes what this matcher does.
- virtual void DescribeTo(::std::ostream* os) const {
+ void DescribeTo(::std::ostream* os) const override {
if (count() == 0) {
*os << "is empty";
} else if (count() == 1) {
}
// Describes what the negation of this matcher does.
- virtual void DescribeNegationTo(::std::ostream* os) const {
+ void DescribeNegationTo(::std::ostream* os) const override {
if (count() == 0) {
*os << "isn't empty";
return;
}
}
- virtual bool MatchAndExplain(Container container,
- MatchResultListener* listener) const {
+ bool MatchAndExplain(Container container,
+ MatchResultListener* listener) const override {
// To work with stream-like "containers", we must only walk
// through the elements in one pass.
const bool listener_interested = listener->IsInterested();
// explanations[i] is the explanation of the element at index i.
- ::std::vector<internal::string> explanations(count());
+ ::std::vector<std::string> explanations(count());
StlContainerReference stl_container = View::ConstReference(container);
typename StlContainer::const_iterator it = stl_container.begin();
size_t exam_pos = 0;
if (listener_interested) {
bool reason_printed = false;
for (size_t i = 0; i != count(); ++i) {
- const internal::string& s = explanations[i];
+ const std::string& s = explanations[i];
if (!s.empty()) {
if (reason_printed) {
*listener << ",\nand ";
size_t count() const { return matchers_.size(); }
::std::vector<Matcher<const Element&> > matchers_;
-
- GTEST_DISALLOW_ASSIGN_(ElementsAreMatcherImpl);
};
// Connectivity matrix of (elements X matchers), in element-major order.
void Randomize();
- string DebugString() const;
+ std::string DebugString() const;
private:
size_t SpaceIndex(size_t ilhs, size_t irhs) const {
GTEST_API_ ElementMatcherPairs
FindMaxBipartiteMatching(const MatchMatrix& g);
-GTEST_API_ bool FindPairing(const MatchMatrix& matrix,
- MatchResultListener* listener);
+struct UnorderedMatcherRequire {
+ enum Flags {
+ Superset = 1 << 0,
+ Subset = 1 << 1,
+ ExactMatch = Superset | Subset,
+ };
+};
// Untyped base class for implementing UnorderedElementsAre. By
// putting logic that's not specific to the element type here, we
// reduce binary bloat and increase compilation speed.
class GTEST_API_ UnorderedElementsAreMatcherImplBase {
protected:
+ explicit UnorderedElementsAreMatcherImplBase(
+ UnorderedMatcherRequire::Flags matcher_flags)
+ : match_flags_(matcher_flags) {}
+
// A vector of matcher describers, one for each element matcher.
// Does not own the describers (and thus can be used only when the
// element matchers are alive).
// Describes the negation of this UnorderedElementsAre matcher.
void DescribeNegationToImpl(::std::ostream* os) const;
- bool VerifyAllElementsAndMatchersAreMatched(
- const ::std::vector<string>& element_printouts,
- const MatchMatrix& matrix,
- MatchResultListener* listener) const;
+ bool VerifyMatchMatrix(const ::std::vector<std::string>& element_printouts,
+ const MatchMatrix& matrix,
+ MatchResultListener* listener) const;
+
+ bool FindPairing(const MatchMatrix& matrix,
+ MatchResultListener* listener) const;
MatcherDescriberVec& matcher_describers() {
return matcher_describers_;
return Message() << n << " element" << (n == 1 ? "" : "s");
}
+ UnorderedMatcherRequire::Flags match_flags() const { return match_flags_; }
+
private:
+ UnorderedMatcherRequire::Flags match_flags_;
MatcherDescriberVec matcher_describers_;
-
- GTEST_DISALLOW_ASSIGN_(UnorderedElementsAreMatcherImplBase);
};
-// Implements unordered ElementsAre and unordered ElementsAreArray.
+// Implements UnorderedElementsAre, UnorderedElementsAreArray, IsSubsetOf, and
+// IsSupersetOf.
template <typename Container>
class UnorderedElementsAreMatcherImpl
: public MatcherInterface<Container>,
typedef typename StlContainer::const_iterator StlContainerConstIterator;
typedef typename StlContainer::value_type Element;
- // Constructs the matcher from a sequence of element values or
- // element matchers.
template <typename InputIter>
- UnorderedElementsAreMatcherImpl(InputIter first, InputIter last) {
+ UnorderedElementsAreMatcherImpl(UnorderedMatcherRequire::Flags matcher_flags,
+ InputIter first, InputIter last)
+ : UnorderedElementsAreMatcherImplBase(matcher_flags) {
for (; first != last; ++first) {
matchers_.push_back(MatcherCast<const Element&>(*first));
- matcher_describers().push_back(matchers_.back().GetDescriber());
+ }
+ for (const auto& m : matchers_) {
+ matcher_describers().push_back(m.GetDescriber());
}
}
// Describes what this matcher does.
- virtual void DescribeTo(::std::ostream* os) const {
+ void DescribeTo(::std::ostream* os) const override {
return UnorderedElementsAreMatcherImplBase::DescribeToImpl(os);
}
// Describes what the negation of this matcher does.
- virtual void DescribeNegationTo(::std::ostream* os) const {
+ void DescribeNegationTo(::std::ostream* os) const override {
return UnorderedElementsAreMatcherImplBase::DescribeNegationToImpl(os);
}
- virtual bool MatchAndExplain(Container container,
- MatchResultListener* listener) const {
+ bool MatchAndExplain(Container container,
+ MatchResultListener* listener) const override {
StlContainerReference stl_container = View::ConstReference(container);
- ::std::vector<string> element_printouts;
- MatchMatrix matrix = AnalyzeElements(stl_container.begin(),
- stl_container.end(),
- &element_printouts,
- listener);
-
- const size_t actual_count = matrix.LhsSize();
- if (actual_count == 0 && matchers_.empty()) {
+ ::std::vector<std::string> element_printouts;
+ MatchMatrix matrix =
+ AnalyzeElements(stl_container.begin(), stl_container.end(),
+ &element_printouts, listener);
+
+ if (matrix.LhsSize() == 0 && matrix.RhsSize() == 0) {
return true;
}
- if (actual_count != matchers_.size()) {
- // The element count doesn't match. If the container is empty,
- // there's no need to explain anything as Google Mock already
- // prints the empty container. Otherwise we just need to show
- // how many elements there actually are.
- if (actual_count != 0 && listener->IsInterested()) {
- *listener << "which has " << Elements(actual_count);
+
+ if (match_flags() == UnorderedMatcherRequire::ExactMatch) {
+ if (matrix.LhsSize() != matrix.RhsSize()) {
+ // The element count doesn't match. If the container is empty,
+ // there's no need to explain anything as Google Mock already
+ // prints the empty container. Otherwise we just need to show
+ // how many elements there actually are.
+ if (matrix.LhsSize() != 0 && listener->IsInterested()) {
+ *listener << "which has " << Elements(matrix.LhsSize());
+ }
+ return false;
}
- return false;
}
- return VerifyAllElementsAndMatchersAreMatched(element_printouts,
- matrix, listener) &&
+ return VerifyMatchMatrix(element_printouts, matrix, listener) &&
FindPairing(matrix, listener);
}
private:
- typedef ::std::vector<Matcher<const Element&> > MatcherVec;
-
template <typename ElementIter>
MatchMatrix AnalyzeElements(ElementIter elem_first, ElementIter elem_last,
- ::std::vector<string>* element_printouts,
+ ::std::vector<std::string>* element_printouts,
MatchResultListener* listener) const {
element_printouts->clear();
::std::vector<char> did_match;
size_t num_elements = 0;
+ DummyMatchResultListener dummy;
for (; elem_first != elem_last; ++num_elements, ++elem_first) {
if (listener->IsInterested()) {
element_printouts->push_back(PrintToString(*elem_first));
}
for (size_t irhs = 0; irhs != matchers_.size(); ++irhs) {
- did_match.push_back(Matches(matchers_[irhs])(*elem_first));
+ did_match.push_back(
+ matchers_[irhs].MatchAndExplain(*elem_first, &dummy));
}
}
return matrix;
}
- MatcherVec matchers_;
-
- GTEST_DISALLOW_ASSIGN_(UnorderedElementsAreMatcherImpl);
+ ::std::vector<Matcher<const Element&> > matchers_;
};
// Functor for use in TransformTuple.
typedef typename View::value_type Element;
typedef ::std::vector<Matcher<const Element&> > MatcherVec;
MatcherVec matchers;
- matchers.reserve(::testing::tuple_size<MatcherTuple>::value);
+ matchers.reserve(::std::tuple_size<MatcherTuple>::value);
TransformTupleValues(CastAndAppendTransform<const Element&>(), matchers_,
::std::back_inserter(matchers));
- return MakeMatcher(new UnorderedElementsAreMatcherImpl<Container>(
- matchers.begin(), matchers.end()));
+ return Matcher<Container>(
+ new UnorderedElementsAreMatcherImpl<const Container&>(
+ UnorderedMatcherRequire::ExactMatch, matchers.begin(),
+ matchers.end()));
}
private:
const MatcherTuple matchers_;
- GTEST_DISALLOW_ASSIGN_(UnorderedElementsAreMatcher);
};
// Implements ElementsAre.
template <typename Container>
operator Matcher<Container>() const {
+ GTEST_COMPILE_ASSERT_(
+ !IsHashTable<GTEST_REMOVE_REFERENCE_AND_CONST_(Container)>::value ||
+ ::std::tuple_size<MatcherTuple>::value < 2,
+ use_UnorderedElementsAre_with_hash_tables);
+
typedef GTEST_REMOVE_REFERENCE_AND_CONST_(Container) RawContainer;
typedef typename internal::StlContainerView<RawContainer>::type View;
typedef typename View::value_type Element;
typedef ::std::vector<Matcher<const Element&> > MatcherVec;
MatcherVec matchers;
- matchers.reserve(::testing::tuple_size<MatcherTuple>::value);
+ matchers.reserve(::std::tuple_size<MatcherTuple>::value);
TransformTupleValues(CastAndAppendTransform<const Element&>(), matchers_,
::std::back_inserter(matchers));
- return MakeMatcher(new ElementsAreMatcherImpl<Container>(
- matchers.begin(), matchers.end()));
+ return Matcher<Container>(new ElementsAreMatcherImpl<const Container&>(
+ matchers.begin(), matchers.end()));
}
private:
const MatcherTuple matchers_;
- GTEST_DISALLOW_ASSIGN_(ElementsAreMatcher);
};
-// Implements UnorderedElementsAreArray().
+// Implements UnorderedElementsAreArray(), IsSubsetOf(), and IsSupersetOf().
template <typename T>
class UnorderedElementsAreArrayMatcher {
public:
- UnorderedElementsAreArrayMatcher() {}
-
template <typename Iter>
- UnorderedElementsAreArrayMatcher(Iter first, Iter last)
- : matchers_(first, last) {}
+ UnorderedElementsAreArrayMatcher(UnorderedMatcherRequire::Flags match_flags,
+ Iter first, Iter last)
+ : match_flags_(match_flags), matchers_(first, last) {}
template <typename Container>
operator Matcher<Container>() const {
- return MakeMatcher(
- new UnorderedElementsAreMatcherImpl<Container>(matchers_.begin(),
- matchers_.end()));
+ return Matcher<Container>(
+ new UnorderedElementsAreMatcherImpl<const Container&>(
+ match_flags_, matchers_.begin(), matchers_.end()));
}
private:
+ UnorderedMatcherRequire::Flags match_flags_;
::std::vector<T> matchers_;
-
- GTEST_DISALLOW_ASSIGN_(UnorderedElementsAreArrayMatcher);
};
// Implements ElementsAreArray().
template <typename Container>
operator Matcher<Container>() const {
- return MakeMatcher(new ElementsAreMatcherImpl<Container>(
+ GTEST_COMPILE_ASSERT_(
+ !IsHashTable<GTEST_REMOVE_REFERENCE_AND_CONST_(Container)>::value,
+ use_UnorderedElementsAreArray_with_hash_tables);
+
+ return Matcher<Container>(new ElementsAreMatcherImpl<const Container&>(
matchers_.begin(), matchers_.end()));
}
private:
const ::std::vector<T> matchers_;
-
- GTEST_DISALLOW_ASSIGN_(ElementsAreArrayMatcher);
};
// Given a 2-tuple matcher tm of type Tuple2Matcher and a value second
// of type Second, BoundSecondMatcher<Tuple2Matcher, Second>(tm,
-// second) is a polymorphic matcher that matches a value x iff tm
-// matches tuple (x, second). Useful for implementing
+// second) is a polymorphic matcher that matches a value x if and only if
+// tm matches tuple (x, second). Useful for implementing
// UnorderedPointwise() in terms of UnorderedElementsAreArray().
//
// BoundSecondMatcher is copyable and assignable, as we need to put
BoundSecondMatcher(const Tuple2Matcher& tm, const Second& second)
: tuple2_matcher_(tm), second_value_(second) {}
+ BoundSecondMatcher(const BoundSecondMatcher& other) = default;
+
template <typename T>
operator Matcher<T>() const {
return MakeMatcher(new Impl<T>(tuple2_matcher_, second_value_));
template <typename T>
class Impl : public MatcherInterface<T> {
public:
- typedef ::testing::tuple<T, Second> ArgTuple;
+ typedef ::std::tuple<T, Second> ArgTuple;
Impl(const Tuple2Matcher& tm, const Second& second)
: mono_tuple2_matcher_(SafeMatcherCast<const ArgTuple&>(tm)),
second_value_(second) {}
- virtual void DescribeTo(::std::ostream* os) const {
+ void DescribeTo(::std::ostream* os) const override {
*os << "and ";
UniversalPrint(second_value_, os);
*os << " ";
mono_tuple2_matcher_.DescribeTo(os);
}
- virtual bool MatchAndExplain(T x, MatchResultListener* listener) const {
+ bool MatchAndExplain(T x, MatchResultListener* listener) const override {
return mono_tuple2_matcher_.MatchAndExplain(ArgTuple(x, second_value_),
listener);
}
private:
const Matcher<const ArgTuple&> mono_tuple2_matcher_;
const Second second_value_;
-
- GTEST_DISALLOW_ASSIGN_(Impl);
};
const Tuple2Matcher tuple2_matcher_;
// Given a 2-tuple matcher tm and a value second,
// MatcherBindSecond(tm, second) returns a matcher that matches a
-// value x iff tm matches tuple (x, second). Useful for implementing
-// UnorderedPointwise() in terms of UnorderedElementsAreArray().
+// value x if and only if tm matches tuple (x, second). Useful for
+// implementing UnorderedPointwise() in terms of UnorderedElementsAreArray().
template <typename Tuple2Matcher, typename Second>
BoundSecondMatcher<Tuple2Matcher, Second> MatcherBindSecond(
const Tuple2Matcher& tm, const Second& second) {
// 'negation' is false; otherwise returns the description of the
// negation of the matcher. 'param_values' contains a list of strings
// that are the print-out of the matcher's parameters.
-GTEST_API_ string FormatMatcherDescription(bool negation,
- const char* matcher_name,
- const Strings& param_values);
+GTEST_API_ std::string FormatMatcherDescription(bool negation,
+ const char* matcher_name,
+ const Strings& param_values);
+
+// Implements a matcher that checks the value of a optional<> type variable.
+template <typename ValueMatcher>
+class OptionalMatcher {
+ public:
+ explicit OptionalMatcher(const ValueMatcher& value_matcher)
+ : value_matcher_(value_matcher) {}
+
+ template <typename Optional>
+ operator Matcher<Optional>() const {
+ return Matcher<Optional>(new Impl<const Optional&>(value_matcher_));
+ }
+
+ template <typename Optional>
+ class Impl : public MatcherInterface<Optional> {
+ public:
+ typedef GTEST_REMOVE_REFERENCE_AND_CONST_(Optional) OptionalView;
+ typedef typename OptionalView::value_type ValueType;
+ explicit Impl(const ValueMatcher& value_matcher)
+ : value_matcher_(MatcherCast<ValueType>(value_matcher)) {}
+
+ void DescribeTo(::std::ostream* os) const override {
+ *os << "value ";
+ value_matcher_.DescribeTo(os);
+ }
+
+ void DescribeNegationTo(::std::ostream* os) const override {
+ *os << "value ";
+ value_matcher_.DescribeNegationTo(os);
+ }
+
+ bool MatchAndExplain(Optional optional,
+ MatchResultListener* listener) const override {
+ if (!optional) {
+ *listener << "which is not engaged";
+ return false;
+ }
+ const ValueType& value = *optional;
+ StringMatchResultListener value_listener;
+ const bool match = value_matcher_.MatchAndExplain(value, &value_listener);
+ *listener << "whose value " << PrintToString(value)
+ << (match ? " matches" : " doesn't match");
+ PrintIfNotEmpty(value_listener.str(), listener->stream());
+ return match;
+ }
+
+ private:
+ const Matcher<ValueType> value_matcher_;
+ };
+
+ private:
+ const ValueMatcher value_matcher_;
+};
+
+namespace variant_matcher {
+// Overloads to allow VariantMatcher to do proper ADL lookup.
+template <typename T>
+void holds_alternative() {}
+template <typename T>
+void get() {}
+
+// Implements a matcher that checks the value of a variant<> type variable.
+template <typename T>
+class VariantMatcher {
+ public:
+ explicit VariantMatcher(::testing::Matcher<const T&> matcher)
+ : matcher_(std::move(matcher)) {}
+
+ template <typename Variant>
+ bool MatchAndExplain(const Variant& value,
+ ::testing::MatchResultListener* listener) const {
+ using std::get;
+ if (!listener->IsInterested()) {
+ return holds_alternative<T>(value) && matcher_.Matches(get<T>(value));
+ }
+
+ if (!holds_alternative<T>(value)) {
+ *listener << "whose value is not of type '" << GetTypeName() << "'";
+ return false;
+ }
+
+ const T& elem = get<T>(value);
+ StringMatchResultListener elem_listener;
+ const bool match = matcher_.MatchAndExplain(elem, &elem_listener);
+ *listener << "whose value " << PrintToString(elem)
+ << (match ? " matches" : " doesn't match");
+ PrintIfNotEmpty(elem_listener.str(), listener->stream());
+ return match;
+ }
+
+ void DescribeTo(std::ostream* os) const {
+ *os << "is a variant<> with value of type '" << GetTypeName()
+ << "' and the value ";
+ matcher_.DescribeTo(os);
+ }
+
+ void DescribeNegationTo(std::ostream* os) const {
+ *os << "is a variant<> with value of type other than '" << GetTypeName()
+ << "' or the value ";
+ matcher_.DescribeNegationTo(os);
+ }
+
+ private:
+ static std::string GetTypeName() {
+#if GTEST_HAS_RTTI
+ GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(
+ return internal::GetTypeName<T>());
+#endif
+ return "the element type";
+ }
+
+ const ::testing::Matcher<const T&> matcher_;
+};
+
+} // namespace variant_matcher
+
+namespace any_cast_matcher {
+
+// Overloads to allow AnyCastMatcher to do proper ADL lookup.
+template <typename T>
+void any_cast() {}
+
+// Implements a matcher that any_casts the value.
+template <typename T>
+class AnyCastMatcher {
+ public:
+ explicit AnyCastMatcher(const ::testing::Matcher<const T&>& matcher)
+ : matcher_(matcher) {}
+
+ template <typename AnyType>
+ bool MatchAndExplain(const AnyType& value,
+ ::testing::MatchResultListener* listener) const {
+ if (!listener->IsInterested()) {
+ const T* ptr = any_cast<T>(&value);
+ return ptr != nullptr && matcher_.Matches(*ptr);
+ }
+
+ const T* elem = any_cast<T>(&value);
+ if (elem == nullptr) {
+ *listener << "whose value is not of type '" << GetTypeName() << "'";
+ return false;
+ }
+
+ StringMatchResultListener elem_listener;
+ const bool match = matcher_.MatchAndExplain(*elem, &elem_listener);
+ *listener << "whose value " << PrintToString(*elem)
+ << (match ? " matches" : " doesn't match");
+ PrintIfNotEmpty(elem_listener.str(), listener->stream());
+ return match;
+ }
+
+ void DescribeTo(std::ostream* os) const {
+ *os << "is an 'any' type with value of type '" << GetTypeName()
+ << "' and the value ";
+ matcher_.DescribeTo(os);
+ }
+
+ void DescribeNegationTo(std::ostream* os) const {
+ *os << "is an 'any' type with value of type other than '" << GetTypeName()
+ << "' or the value ";
+ matcher_.DescribeNegationTo(os);
+ }
+
+ private:
+ static std::string GetTypeName() {
+#if GTEST_HAS_RTTI
+ GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(
+ return internal::GetTypeName<T>());
+#endif
+ return "the element type";
+ }
+
+ const ::testing::Matcher<const T&> matcher_;
+};
+
+} // namespace any_cast_matcher
+
+// Implements the Args() matcher.
+template <class ArgsTuple, size_t... k>
+class ArgsMatcherImpl : public MatcherInterface<ArgsTuple> {
+ public:
+ using RawArgsTuple = typename std::decay<ArgsTuple>::type;
+ using SelectedArgs =
+ std::tuple<typename std::tuple_element<k, RawArgsTuple>::type...>;
+ using MonomorphicInnerMatcher = Matcher<const SelectedArgs&>;
+
+ template <typename InnerMatcher>
+ explicit ArgsMatcherImpl(const InnerMatcher& inner_matcher)
+ : inner_matcher_(SafeMatcherCast<const SelectedArgs&>(inner_matcher)) {}
+
+ bool MatchAndExplain(ArgsTuple args,
+ MatchResultListener* listener) const override {
+ // Workaround spurious C4100 on MSVC<=15.7 when k is empty.
+ (void)args;
+ const SelectedArgs& selected_args =
+ std::forward_as_tuple(std::get<k>(args)...);
+ if (!listener->IsInterested()) return inner_matcher_.Matches(selected_args);
+
+ PrintIndices(listener->stream());
+ *listener << "are " << PrintToString(selected_args);
+
+ StringMatchResultListener inner_listener;
+ const bool match =
+ inner_matcher_.MatchAndExplain(selected_args, &inner_listener);
+ PrintIfNotEmpty(inner_listener.str(), listener->stream());
+ return match;
+ }
+
+ void DescribeTo(::std::ostream* os) const override {
+ *os << "are a tuple ";
+ PrintIndices(os);
+ inner_matcher_.DescribeTo(os);
+ }
+
+ void DescribeNegationTo(::std::ostream* os) const override {
+ *os << "are a tuple ";
+ PrintIndices(os);
+ inner_matcher_.DescribeNegationTo(os);
+ }
+
+ private:
+ // Prints the indices of the selected fields.
+ static void PrintIndices(::std::ostream* os) {
+ *os << "whose fields (";
+ const char* sep = "";
+ // Workaround spurious C4189 on MSVC<=15.7 when k is empty.
+ (void)sep;
+ const char* dummy[] = {"", (*os << sep << "#" << k, sep = ", ")...};
+ (void)dummy;
+ *os << ") ";
+ }
+
+ MonomorphicInnerMatcher inner_matcher_;
+};
+
+template <class InnerMatcher, size_t... k>
+class ArgsMatcher {
+ public:
+ explicit ArgsMatcher(InnerMatcher inner_matcher)
+ : inner_matcher_(std::move(inner_matcher)) {}
+
+ template <typename ArgsTuple>
+ operator Matcher<ArgsTuple>() const { // NOLINT
+ return MakeMatcher(new ArgsMatcherImpl<ArgsTuple, k...>(inner_matcher_));
+ }
+
+ private:
+ InnerMatcher inner_matcher_;
+};
} // namespace internal
-// ElementsAreArray(first, last)
+// ElementsAreArray(iterator_first, iterator_last)
// ElementsAreArray(pointer, count)
// ElementsAreArray(array)
// ElementsAreArray(container)
}
template <typename T>
-inline internal::ElementsAreArrayMatcher<T> ElementsAreArray(
- const T* pointer, size_t count) {
+inline auto ElementsAreArray(const T* pointer, size_t count)
+ -> decltype(ElementsAreArray(pointer, pointer + count)) {
return ElementsAreArray(pointer, pointer + count);
}
template <typename T, size_t N>
-inline internal::ElementsAreArrayMatcher<T> ElementsAreArray(
- const T (&array)[N]) {
+inline auto ElementsAreArray(const T (&array)[N])
+ -> decltype(ElementsAreArray(array, N)) {
return ElementsAreArray(array, N);
}
template <typename Container>
-inline internal::ElementsAreArrayMatcher<typename Container::value_type>
-ElementsAreArray(const Container& container) {
+inline auto ElementsAreArray(const Container& container)
+ -> decltype(ElementsAreArray(container.begin(), container.end())) {
return ElementsAreArray(container.begin(), container.end());
}
-#if GTEST_HAS_STD_INITIALIZER_LIST_
template <typename T>
-inline internal::ElementsAreArrayMatcher<T>
-ElementsAreArray(::std::initializer_list<T> xs) {
+inline auto ElementsAreArray(::std::initializer_list<T> xs)
+ -> decltype(ElementsAreArray(xs.begin(), xs.end())) {
return ElementsAreArray(xs.begin(), xs.end());
}
-#endif
-// UnorderedElementsAreArray(first, last)
+// UnorderedElementsAreArray(iterator_first, iterator_last)
// UnorderedElementsAreArray(pointer, count)
// UnorderedElementsAreArray(array)
// UnorderedElementsAreArray(container)
// UnorderedElementsAreArray({ e1, e2, ..., en })
//
-// The UnorderedElementsAreArray() functions are like
-// ElementsAreArray(...), but allow matching the elements in any order.
+// UnorderedElementsAreArray() verifies that a bijective mapping onto a
+// collection of matchers exists.
+//
+// The matchers can be specified as an array, a pointer and count, a container,
+// an initializer list, or an STL iterator range. In each of these cases, the
+// underlying matchers can be either values or matchers.
+
template <typename Iter>
inline internal::UnorderedElementsAreArrayMatcher<
typename ::std::iterator_traits<Iter>::value_type>
UnorderedElementsAreArray(Iter first, Iter last) {
typedef typename ::std::iterator_traits<Iter>::value_type T;
- return internal::UnorderedElementsAreArrayMatcher<T>(first, last);
+ return internal::UnorderedElementsAreArrayMatcher<T>(
+ internal::UnorderedMatcherRequire::ExactMatch, first, last);
}
template <typename T>
return UnorderedElementsAreArray(container.begin(), container.end());
}
-#if GTEST_HAS_STD_INITIALIZER_LIST_
template <typename T>
inline internal::UnorderedElementsAreArrayMatcher<T>
UnorderedElementsAreArray(::std::initializer_list<T> xs) {
return UnorderedElementsAreArray(xs.begin(), xs.end());
}
-#endif
// _ is a matcher that matches anything of any type.
//
const internal::AnythingMatcher _ = {};
// Creates a matcher that matches any value of the given type T.
template <typename T>
-inline Matcher<T> A() { return MakeMatcher(new internal::AnyMatcherImpl<T>()); }
+inline Matcher<T> A() {
+ return _;
+}
// Creates a matcher that matches any value of the given type T.
template <typename T>
-inline Matcher<T> An() { return A<T>(); }
-
-// Creates a polymorphic matcher that matches anything equal to x.
-// Note: if the parameter of Eq() were declared as const T&, Eq("foo")
-// wouldn't compile.
-template <typename T>
-inline internal::EqMatcher<T> Eq(T x) { return internal::EqMatcher<T>(x); }
-
-// Constructs a Matcher<T> from a 'value' of type T. The constructed
-// matcher matches any value that's equal to 'value'.
-template <typename T>
-Matcher<T>::Matcher(T value) { *this = Eq(value); }
-
-// Creates a monomorphic matcher that matches anything with type Lhs
-// and equal to rhs. A user may need to use this instead of Eq(...)
-// in order to resolve an overloading ambiguity.
-//
-// TypedEq<T>(x) is just a convenient short-hand for Matcher<T>(Eq(x))
-// or Matcher<T>(x), but more readable than the latter.
-//
-// We could define similar monomorphic matchers for other comparison
-// operations (e.g. TypedLt, TypedGe, and etc), but decided not to do
-// it yet as those are used much less than Eq() in practice. A user
-// can always write Matcher<T>(Lt(5)) to be explicit about the type,
-// for example.
-template <typename Lhs, typename Rhs>
-inline Matcher<Lhs> TypedEq(const Rhs& rhs) { return Eq(rhs); }
-
-// Creates a polymorphic matcher that matches anything >= x.
-template <typename Rhs>
-inline internal::GeMatcher<Rhs> Ge(Rhs x) {
- return internal::GeMatcher<Rhs>(x);
+inline Matcher<T> An() {
+ return _;
}
-// Creates a polymorphic matcher that matches anything > x.
-template <typename Rhs>
-inline internal::GtMatcher<Rhs> Gt(Rhs x) {
- return internal::GtMatcher<Rhs>(x);
-}
-
-// Creates a polymorphic matcher that matches anything <= x.
-template <typename Rhs>
-inline internal::LeMatcher<Rhs> Le(Rhs x) {
- return internal::LeMatcher<Rhs>(x);
-}
-
-// Creates a polymorphic matcher that matches anything < x.
-template <typename Rhs>
-inline internal::LtMatcher<Rhs> Lt(Rhs x) {
- return internal::LtMatcher<Rhs>(x);
-}
-
-// Creates a polymorphic matcher that matches anything != x.
-template <typename Rhs>
-inline internal::NeMatcher<Rhs> Ne(Rhs x) {
- return internal::NeMatcher<Rhs>(x);
+template <typename T, typename M>
+Matcher<T> internal::MatcherCastImpl<T, M>::CastImpl(
+ const M& value, std::false_type /* convertible_to_matcher */,
+ std::false_type /* convertible_to_T */) {
+ return Eq(value);
}
// Creates a polymorphic matcher that matches any NULL pointer.
return internal::RefMatcher<T&>(x);
}
+// Creates a polymorphic matcher that matches any NaN floating point.
+inline PolymorphicMatcher<internal::IsNanMatcher> IsNan() {
+ return MakePolymorphicMatcher(internal::IsNanMatcher());
+}
+
// Creates a matcher that matches any double argument approximately
// equal to rhs, where two NANs are considered unequal.
inline internal::FloatingEqMatcher<double> DoubleEq(double rhs) {
return internal::PointeeMatcher<InnerMatcher>(inner_matcher);
}
+#if GTEST_HAS_RTTI
// Creates a matcher that matches a pointer or reference that matches
// inner_matcher when dynamic_cast<To> is applied.
// The result of dynamic_cast<To> is forwarded to the inner matcher.
return MakePolymorphicMatcher(
internal::WhenDynamicCastToMatcher<To>(inner_matcher));
}
+#endif // GTEST_HAS_RTTI
// Creates a matcher that matches an object whose given field matches
// 'matcher'. For example,
// Field(&Foo::number, Ge(5))
-// matches a Foo object x iff x.number >= 5.
+// matches a Foo object x if and only if x.number >= 5.
template <typename Class, typename FieldType, typename FieldMatcher>
inline PolymorphicMatcher<
internal::FieldMatcher<Class, FieldType> > Field(
// to compile where bar is an int32 and m is a matcher for int64.
}
+// Same as Field() but also takes the name of the field to provide better error
+// messages.
+template <typename Class, typename FieldType, typename FieldMatcher>
+inline PolymorphicMatcher<internal::FieldMatcher<Class, FieldType> > Field(
+ const std::string& field_name, FieldType Class::*field,
+ const FieldMatcher& matcher) {
+ return MakePolymorphicMatcher(internal::FieldMatcher<Class, FieldType>(
+ field_name, field, MatcherCast<const FieldType&>(matcher)));
+}
+
// Creates a matcher that matches an object whose given property
// matches 'matcher'. For example,
// Property(&Foo::str, StartsWith("hi"))
-// matches a Foo object x iff x.str() starts with "hi".
+// matches a Foo object x if and only if x.str() starts with "hi".
template <typename Class, typename PropertyType, typename PropertyMatcher>
-inline PolymorphicMatcher<
- internal::PropertyMatcher<Class, PropertyType> > Property(
- PropertyType (Class::*property)() const, const PropertyMatcher& matcher) {
+inline PolymorphicMatcher<internal::PropertyMatcher<
+ Class, PropertyType, PropertyType (Class::*)() const> >
+Property(PropertyType (Class::*property)() const,
+ const PropertyMatcher& matcher) {
return MakePolymorphicMatcher(
- internal::PropertyMatcher<Class, PropertyType>(
- property,
- MatcherCast<GTEST_REFERENCE_TO_CONST_(PropertyType)>(matcher)));
+ internal::PropertyMatcher<Class, PropertyType,
+ PropertyType (Class::*)() const>(
+ property, MatcherCast<const PropertyType&>(matcher)));
// The call to MatcherCast() is required for supporting inner
// matchers of compatible types. For example, it allows
// Property(&Foo::bar, m)
// to compile where bar() returns an int32 and m is a matcher for int64.
}
-// Creates a matcher that matches an object iff the result of applying
-// a callable to x matches 'matcher'.
-// For example,
+// Same as Property() above, but also takes the name of the property to provide
+// better error messages.
+template <typename Class, typename PropertyType, typename PropertyMatcher>
+inline PolymorphicMatcher<internal::PropertyMatcher<
+ Class, PropertyType, PropertyType (Class::*)() const> >
+Property(const std::string& property_name,
+ PropertyType (Class::*property)() const,
+ const PropertyMatcher& matcher) {
+ return MakePolymorphicMatcher(
+ internal::PropertyMatcher<Class, PropertyType,
+ PropertyType (Class::*)() const>(
+ property_name, property, MatcherCast<const PropertyType&>(matcher)));
+}
+
+// The same as above but for reference-qualified member functions.
+template <typename Class, typename PropertyType, typename PropertyMatcher>
+inline PolymorphicMatcher<internal::PropertyMatcher<
+ Class, PropertyType, PropertyType (Class::*)() const &> >
+Property(PropertyType (Class::*property)() const &,
+ const PropertyMatcher& matcher) {
+ return MakePolymorphicMatcher(
+ internal::PropertyMatcher<Class, PropertyType,
+ PropertyType (Class::*)() const&>(
+ property, MatcherCast<const PropertyType&>(matcher)));
+}
+
+// Three-argument form for reference-qualified member functions.
+template <typename Class, typename PropertyType, typename PropertyMatcher>
+inline PolymorphicMatcher<internal::PropertyMatcher<
+ Class, PropertyType, PropertyType (Class::*)() const &> >
+Property(const std::string& property_name,
+ PropertyType (Class::*property)() const &,
+ const PropertyMatcher& matcher) {
+ return MakePolymorphicMatcher(
+ internal::PropertyMatcher<Class, PropertyType,
+ PropertyType (Class::*)() const&>(
+ property_name, property, MatcherCast<const PropertyType&>(matcher)));
+}
+
+// Creates a matcher that matches an object if and only if the result of
+// applying a callable to x matches 'matcher'. For example,
// ResultOf(f, StartsWith("hi"))
-// matches a Foo object x iff f(x) starts with "hi".
-// callable parameter can be a function, function pointer, or a functor.
-// Callable has to satisfy the following conditions:
-// * It is required to keep no state affecting the results of
-// the calls on it and make no assumptions about how many calls
-// will be made. Any state it keeps must be protected from the
-// concurrent access.
-// * If it is a function object, it has to define type result_type.
-// We recommend deriving your functor classes from std::unary_function.
-template <typename Callable, typename ResultOfMatcher>
-internal::ResultOfMatcher<Callable> ResultOf(
- Callable callable, const ResultOfMatcher& matcher) {
- return internal::ResultOfMatcher<Callable>(
- callable,
- MatcherCast<typename internal::CallableTraits<Callable>::ResultType>(
- matcher));
- // The call to MatcherCast() is required for supporting inner
- // matchers of compatible types. For example, it allows
- // ResultOf(Function, m)
- // to compile where Function() returns an int32 and m is a matcher for int64.
+// matches a Foo object x if and only if f(x) starts with "hi".
+// `callable` parameter can be a function, function pointer, or a functor. It is
+// required to keep no state affecting the results of the calls on it and make
+// no assumptions about how many calls will be made. Any state it keeps must be
+// protected from the concurrent access.
+template <typename Callable, typename InnerMatcher>
+internal::ResultOfMatcher<Callable, InnerMatcher> ResultOf(
+ Callable callable, InnerMatcher matcher) {
+ return internal::ResultOfMatcher<Callable, InnerMatcher>(
+ std::move(callable), std::move(matcher));
}
// String matchers.
// Matches a string equal to str.
-inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> >
- StrEq(const internal::string& str) {
- return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>(
- str, true, true));
+template <typename T = std::string>
+PolymorphicMatcher<internal::StrEqualityMatcher<std::string> > StrEq(
+ const internal::StringLike<T>& str) {
+ return MakePolymorphicMatcher(
+ internal::StrEqualityMatcher<std::string>(std::string(str), true, true));
}
// Matches a string not equal to str.
-inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> >
- StrNe(const internal::string& str) {
- return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>(
- str, false, true));
+template <typename T = std::string>
+PolymorphicMatcher<internal::StrEqualityMatcher<std::string> > StrNe(
+ const internal::StringLike<T>& str) {
+ return MakePolymorphicMatcher(
+ internal::StrEqualityMatcher<std::string>(std::string(str), false, true));
}
// Matches a string equal to str, ignoring case.
-inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> >
- StrCaseEq(const internal::string& str) {
- return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>(
- str, true, false));
+template <typename T = std::string>
+PolymorphicMatcher<internal::StrEqualityMatcher<std::string> > StrCaseEq(
+ const internal::StringLike<T>& str) {
+ return MakePolymorphicMatcher(
+ internal::StrEqualityMatcher<std::string>(std::string(str), true, false));
}
// Matches a string not equal to str, ignoring case.
-inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> >
- StrCaseNe(const internal::string& str) {
- return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>(
- str, false, false));
+template <typename T = std::string>
+PolymorphicMatcher<internal::StrEqualityMatcher<std::string> > StrCaseNe(
+ const internal::StringLike<T>& str) {
+ return MakePolymorphicMatcher(internal::StrEqualityMatcher<std::string>(
+ std::string(str), false, false));
}
// Creates a matcher that matches any string, std::string, or C string
// that contains the given substring.
-inline PolymorphicMatcher<internal::HasSubstrMatcher<internal::string> >
- HasSubstr(const internal::string& substring) {
- return MakePolymorphicMatcher(internal::HasSubstrMatcher<internal::string>(
- substring));
+template <typename T = std::string>
+PolymorphicMatcher<internal::HasSubstrMatcher<std::string> > HasSubstr(
+ const internal::StringLike<T>& substring) {
+ return MakePolymorphicMatcher(
+ internal::HasSubstrMatcher<std::string>(std::string(substring)));
}
// Matches a string that starts with 'prefix' (case-sensitive).
-inline PolymorphicMatcher<internal::StartsWithMatcher<internal::string> >
- StartsWith(const internal::string& prefix) {
- return MakePolymorphicMatcher(internal::StartsWithMatcher<internal::string>(
- prefix));
+template <typename T = std::string>
+PolymorphicMatcher<internal::StartsWithMatcher<std::string> > StartsWith(
+ const internal::StringLike<T>& prefix) {
+ return MakePolymorphicMatcher(
+ internal::StartsWithMatcher<std::string>(std::string(prefix)));
}
// Matches a string that ends with 'suffix' (case-sensitive).
-inline PolymorphicMatcher<internal::EndsWithMatcher<internal::string> >
- EndsWith(const internal::string& suffix) {
- return MakePolymorphicMatcher(internal::EndsWithMatcher<internal::string>(
- suffix));
-}
-
-// Matches a string that fully matches regular expression 'regex'.
-// The matcher takes ownership of 'regex'.
-inline PolymorphicMatcher<internal::MatchesRegexMatcher> MatchesRegex(
- const internal::RE* regex) {
- return MakePolymorphicMatcher(internal::MatchesRegexMatcher(regex, true));
-}
-inline PolymorphicMatcher<internal::MatchesRegexMatcher> MatchesRegex(
- const internal::string& regex) {
- return MatchesRegex(new internal::RE(regex));
-}
-
-// Matches a string that contains regular expression 'regex'.
-// The matcher takes ownership of 'regex'.
-inline PolymorphicMatcher<internal::MatchesRegexMatcher> ContainsRegex(
- const internal::RE* regex) {
- return MakePolymorphicMatcher(internal::MatchesRegexMatcher(regex, false));
-}
-inline PolymorphicMatcher<internal::MatchesRegexMatcher> ContainsRegex(
- const internal::string& regex) {
- return ContainsRegex(new internal::RE(regex));
+template <typename T = std::string>
+PolymorphicMatcher<internal::EndsWithMatcher<std::string> > EndsWith(
+ const internal::StringLike<T>& suffix) {
+ return MakePolymorphicMatcher(
+ internal::EndsWithMatcher<std::string>(std::string(suffix)));
}
-#if GTEST_HAS_GLOBAL_WSTRING || GTEST_HAS_STD_WSTRING
+#if GTEST_HAS_STD_WSTRING
// Wide string matchers.
// Matches a string equal to str.
-inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> >
- StrEq(const internal::wstring& str) {
- return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>(
- str, true, true));
+inline PolymorphicMatcher<internal::StrEqualityMatcher<std::wstring> > StrEq(
+ const std::wstring& str) {
+ return MakePolymorphicMatcher(
+ internal::StrEqualityMatcher<std::wstring>(str, true, true));
}
// Matches a string not equal to str.
-inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> >
- StrNe(const internal::wstring& str) {
- return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>(
- str, false, true));
+inline PolymorphicMatcher<internal::StrEqualityMatcher<std::wstring> > StrNe(
+ const std::wstring& str) {
+ return MakePolymorphicMatcher(
+ internal::StrEqualityMatcher<std::wstring>(str, false, true));
}
// Matches a string equal to str, ignoring case.
-inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> >
- StrCaseEq(const internal::wstring& str) {
- return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>(
- str, true, false));
+inline PolymorphicMatcher<internal::StrEqualityMatcher<std::wstring> >
+StrCaseEq(const std::wstring& str) {
+ return MakePolymorphicMatcher(
+ internal::StrEqualityMatcher<std::wstring>(str, true, false));
}
// Matches a string not equal to str, ignoring case.
-inline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> >
- StrCaseNe(const internal::wstring& str) {
- return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>(
- str, false, false));
+inline PolymorphicMatcher<internal::StrEqualityMatcher<std::wstring> >
+StrCaseNe(const std::wstring& str) {
+ return MakePolymorphicMatcher(
+ internal::StrEqualityMatcher<std::wstring>(str, false, false));
}
-// Creates a matcher that matches any wstring, std::wstring, or C wide string
+// Creates a matcher that matches any ::wstring, std::wstring, or C wide string
// that contains the given substring.
-inline PolymorphicMatcher<internal::HasSubstrMatcher<internal::wstring> >
- HasSubstr(const internal::wstring& substring) {
- return MakePolymorphicMatcher(internal::HasSubstrMatcher<internal::wstring>(
- substring));
+inline PolymorphicMatcher<internal::HasSubstrMatcher<std::wstring> > HasSubstr(
+ const std::wstring& substring) {
+ return MakePolymorphicMatcher(
+ internal::HasSubstrMatcher<std::wstring>(substring));
}
// Matches a string that starts with 'prefix' (case-sensitive).
-inline PolymorphicMatcher<internal::StartsWithMatcher<internal::wstring> >
- StartsWith(const internal::wstring& prefix) {
- return MakePolymorphicMatcher(internal::StartsWithMatcher<internal::wstring>(
- prefix));
+inline PolymorphicMatcher<internal::StartsWithMatcher<std::wstring> >
+StartsWith(const std::wstring& prefix) {
+ return MakePolymorphicMatcher(
+ internal::StartsWithMatcher<std::wstring>(prefix));
}
// Matches a string that ends with 'suffix' (case-sensitive).
-inline PolymorphicMatcher<internal::EndsWithMatcher<internal::wstring> >
- EndsWith(const internal::wstring& suffix) {
- return MakePolymorphicMatcher(internal::EndsWithMatcher<internal::wstring>(
- suffix));
+inline PolymorphicMatcher<internal::EndsWithMatcher<std::wstring> > EndsWith(
+ const std::wstring& suffix) {
+ return MakePolymorphicMatcher(
+ internal::EndsWithMatcher<std::wstring>(suffix));
}
-#endif // GTEST_HAS_GLOBAL_WSTRING || GTEST_HAS_STD_WSTRING
+#endif // GTEST_HAS_STD_WSTRING
// Creates a polymorphic matcher that matches a 2-tuple where the
// first field == the second field.
// first field != the second field.
inline internal::Ne2Matcher Ne() { return internal::Ne2Matcher(); }
+// Creates a polymorphic matcher that matches a 2-tuple where
+// FloatEq(first field) matches the second field.
+inline internal::FloatingEq2Matcher<float> FloatEq() {
+ return internal::FloatingEq2Matcher<float>();
+}
+
+// Creates a polymorphic matcher that matches a 2-tuple where
+// DoubleEq(first field) matches the second field.
+inline internal::FloatingEq2Matcher<double> DoubleEq() {
+ return internal::FloatingEq2Matcher<double>();
+}
+
+// Creates a polymorphic matcher that matches a 2-tuple where
+// FloatEq(first field) matches the second field with NaN equality.
+inline internal::FloatingEq2Matcher<float> NanSensitiveFloatEq() {
+ return internal::FloatingEq2Matcher<float>(true);
+}
+
+// Creates a polymorphic matcher that matches a 2-tuple where
+// DoubleEq(first field) matches the second field with NaN equality.
+inline internal::FloatingEq2Matcher<double> NanSensitiveDoubleEq() {
+ return internal::FloatingEq2Matcher<double>(true);
+}
+
+// Creates a polymorphic matcher that matches a 2-tuple where
+// FloatNear(first field, max_abs_error) matches the second field.
+inline internal::FloatingEq2Matcher<float> FloatNear(float max_abs_error) {
+ return internal::FloatingEq2Matcher<float>(max_abs_error);
+}
+
+// Creates a polymorphic matcher that matches a 2-tuple where
+// DoubleNear(first field, max_abs_error) matches the second field.
+inline internal::FloatingEq2Matcher<double> DoubleNear(double max_abs_error) {
+ return internal::FloatingEq2Matcher<double>(max_abs_error);
+}
+
+// Creates a polymorphic matcher that matches a 2-tuple where
+// FloatNear(first field, max_abs_error) matches the second field with NaN
+// equality.
+inline internal::FloatingEq2Matcher<float> NanSensitiveFloatNear(
+ float max_abs_error) {
+ return internal::FloatingEq2Matcher<float>(max_abs_error, true);
+}
+
+// Creates a polymorphic matcher that matches a 2-tuple where
+// DoubleNear(first field, max_abs_error) matches the second field with NaN
+// equality.
+inline internal::FloatingEq2Matcher<double> NanSensitiveDoubleNear(
+ double max_abs_error) {
+ return internal::FloatingEq2Matcher<double>(max_abs_error, true);
+}
+
// Creates a matcher that matches any value of type T that m doesn't
// match.
template <typename InnerMatcher>
// values that are included in one container but not the other. (Duplicate
// values and order differences are not explained.)
template <typename Container>
-inline PolymorphicMatcher<internal::ContainerEqMatcher< // NOLINT
- GTEST_REMOVE_CONST_(Container)> >
- ContainerEq(const Container& rhs) {
- // This following line is for working around a bug in MSVC 8.0,
- // which causes Container to be a const type sometimes.
- typedef GTEST_REMOVE_CONST_(Container) RawContainer;
- return MakePolymorphicMatcher(
- internal::ContainerEqMatcher<RawContainer>(rhs));
+inline PolymorphicMatcher<internal::ContainerEqMatcher<
+ typename std::remove_const<Container>::type>>
+ContainerEq(const Container& rhs) {
+ return MakePolymorphicMatcher(internal::ContainerEqMatcher<Container>(rhs));
}
// Returns a matcher that matches a container that, when sorted using
// Matches an STL-style container or a native array that contains the
// same number of elements as in rhs, where its i-th element and rhs's
// i-th element (as a pair) satisfy the given pair matcher, for all i.
-// TupleMatcher must be able to be safely cast to Matcher<tuple<const
+// TupleMatcher must be able to be safely cast to Matcher<std::tuple<const
// T1&, const T2&> >, where T1 and T2 are the types of elements in the
// LHS container and the RHS container respectively.
template <typename TupleMatcher, typename Container>
inline internal::PointwiseMatcher<TupleMatcher,
- GTEST_REMOVE_CONST_(Container)>
+ typename std::remove_const<Container>::type>
Pointwise(const TupleMatcher& tuple_matcher, const Container& rhs) {
- // This following line is for working around a bug in MSVC 8.0,
- // which causes Container to be a const type sometimes (e.g. when
- // rhs is a const int[])..
- typedef GTEST_REMOVE_CONST_(Container) RawContainer;
- return internal::PointwiseMatcher<TupleMatcher, RawContainer>(
- tuple_matcher, rhs);
+ return internal::PointwiseMatcher<TupleMatcher, Container>(tuple_matcher,
+ rhs);
}
-#if GTEST_HAS_STD_INITIALIZER_LIST_
// Supports the Pointwise(m, {a, b, c}) syntax.
template <typename TupleMatcher, typename T>
return Pointwise(tuple_matcher, std::vector<T>(rhs));
}
-#endif // GTEST_HAS_STD_INITIALIZER_LIST_
// UnorderedPointwise(pair_matcher, rhs) matches an STL-style
// container or a native array that contains the same number of
// elements as in rhs, where in some permutation of the container, its
// i-th element and rhs's i-th element (as a pair) satisfy the given
// pair matcher, for all i. Tuple2Matcher must be able to be safely
-// cast to Matcher<tuple<const T1&, const T2&> >, where T1 and T2 are
+// cast to Matcher<std::tuple<const T1&, const T2&> >, where T1 and T2 are
// the types of elements in the LHS container and the RHS container
// respectively.
//
template <typename Tuple2Matcher, typename RhsContainer>
inline internal::UnorderedElementsAreArrayMatcher<
typename internal::BoundSecondMatcher<
- Tuple2Matcher, typename internal::StlContainerView<GTEST_REMOVE_CONST_(
- RhsContainer)>::type::value_type> >
+ Tuple2Matcher,
+ typename internal::StlContainerView<
+ typename std::remove_const<RhsContainer>::type>::type::value_type>>
UnorderedPointwise(const Tuple2Matcher& tuple2_matcher,
const RhsContainer& rhs_container) {
- // This following line is for working around a bug in MSVC 8.0,
- // which causes RhsContainer to be a const type sometimes (e.g. when
- // rhs_container is a const int[]).
- typedef GTEST_REMOVE_CONST_(RhsContainer) RawRhsContainer;
-
// RhsView allows the same code to handle RhsContainer being a
// STL-style container and it being a native C-style array.
- typedef typename internal::StlContainerView<RawRhsContainer> RhsView;
+ typedef typename internal::StlContainerView<RhsContainer> RhsView;
typedef typename RhsView::type RhsStlContainer;
typedef typename RhsStlContainer::value_type Second;
const RhsStlContainer& rhs_stl_container =
return UnorderedElementsAreArray(matchers);
}
-#if GTEST_HAS_STD_INITIALIZER_LIST_
// Supports the UnorderedPointwise(m, {a, b, c}) syntax.
template <typename Tuple2Matcher, typename T>
return UnorderedPointwise(tuple2_matcher, std::vector<T>(rhs));
}
-#endif // GTEST_HAS_STD_INITIALIZER_LIST_
-
// Matches an STL-style container or a native array that contains at
// least one element matching the given value or matcher.
//
// page_ids.insert(1);
// EXPECT_THAT(page_ids, Contains(1));
// EXPECT_THAT(page_ids, Contains(Gt(2)));
-// EXPECT_THAT(page_ids, Not(Contains(4)));
+// EXPECT_THAT(page_ids, Not(Contains(4))); // See below for Times(0)
//
// ::std::map<int, size_t> page_lengths;
// page_lengths[1] = 100;
//
// const char* user_ids[] = { "joe", "mike", "tom" };
// EXPECT_THAT(user_ids, Contains(Eq(::std::string("tom"))));
+//
+// The matcher supports a modifier `Times` that allows to check for arbitrary
+// occurrences including testing for absence with Times(0).
+//
+// Examples:
+// ::std::vector<int> ids;
+// ids.insert(1);
+// ids.insert(1);
+// ids.insert(3);
+// EXPECT_THAT(ids, Contains(1).Times(2)); // 1 occurs 2 times
+// EXPECT_THAT(ids, Contains(2).Times(0)); // 2 is not present
+// EXPECT_THAT(ids, Contains(3).Times(Ge(1))); // 3 occurs at least once
+
template <typename M>
inline internal::ContainsMatcher<M> Contains(M matcher) {
return internal::ContainsMatcher<M>(matcher);
}
+// IsSupersetOf(iterator_first, iterator_last)
+// IsSupersetOf(pointer, count)
+// IsSupersetOf(array)
+// IsSupersetOf(container)
+// IsSupersetOf({e1, e2, ..., en})
+//
+// IsSupersetOf() verifies that a surjective partial mapping onto a collection
+// of matchers exists. In other words, a container matches
+// IsSupersetOf({e1, ..., en}) if and only if there is a permutation
+// {y1, ..., yn} of some of the container's elements where y1 matches e1,
+// ..., and yn matches en. Obviously, the size of the container must be >= n
+// in order to have a match. Examples:
+//
+// - {1, 2, 3} matches IsSupersetOf({Ge(3), Ne(0)}), as 3 matches Ge(3) and
+// 1 matches Ne(0).
+// - {1, 2} doesn't match IsSupersetOf({Eq(1), Lt(2)}), even though 1 matches
+// both Eq(1) and Lt(2). The reason is that different matchers must be used
+// for elements in different slots of the container.
+// - {1, 1, 2} matches IsSupersetOf({Eq(1), Lt(2)}), as (the first) 1 matches
+// Eq(1) and (the second) 1 matches Lt(2).
+// - {1, 2, 3} matches IsSupersetOf(Gt(1), Gt(1)), as 2 matches (the first)
+// Gt(1) and 3 matches (the second) Gt(1).
+//
+// The matchers can be specified as an array, a pointer and count, a container,
+// an initializer list, or an STL iterator range. In each of these cases, the
+// underlying matchers can be either values or matchers.
+
+template <typename Iter>
+inline internal::UnorderedElementsAreArrayMatcher<
+ typename ::std::iterator_traits<Iter>::value_type>
+IsSupersetOf(Iter first, Iter last) {
+ typedef typename ::std::iterator_traits<Iter>::value_type T;
+ return internal::UnorderedElementsAreArrayMatcher<T>(
+ internal::UnorderedMatcherRequire::Superset, first, last);
+}
+
+template <typename T>
+inline internal::UnorderedElementsAreArrayMatcher<T> IsSupersetOf(
+ const T* pointer, size_t count) {
+ return IsSupersetOf(pointer, pointer + count);
+}
+
+template <typename T, size_t N>
+inline internal::UnorderedElementsAreArrayMatcher<T> IsSupersetOf(
+ const T (&array)[N]) {
+ return IsSupersetOf(array, N);
+}
+
+template <typename Container>
+inline internal::UnorderedElementsAreArrayMatcher<
+ typename Container::value_type>
+IsSupersetOf(const Container& container) {
+ return IsSupersetOf(container.begin(), container.end());
+}
+
+template <typename T>
+inline internal::UnorderedElementsAreArrayMatcher<T> IsSupersetOf(
+ ::std::initializer_list<T> xs) {
+ return IsSupersetOf(xs.begin(), xs.end());
+}
+
+// IsSubsetOf(iterator_first, iterator_last)
+// IsSubsetOf(pointer, count)
+// IsSubsetOf(array)
+// IsSubsetOf(container)
+// IsSubsetOf({e1, e2, ..., en})
+//
+// IsSubsetOf() verifies that an injective mapping onto a collection of matchers
+// exists. In other words, a container matches IsSubsetOf({e1, ..., en}) if and
+// only if there is a subset of matchers {m1, ..., mk} which would match the
+// container using UnorderedElementsAre. Obviously, the size of the container
+// must be <= n in order to have a match. Examples:
+//
+// - {1} matches IsSubsetOf({Gt(0), Lt(0)}), as 1 matches Gt(0).
+// - {1, -1} matches IsSubsetOf({Lt(0), Gt(0)}), as 1 matches Gt(0) and -1
+// matches Lt(0).
+// - {1, 2} doesn't matches IsSubsetOf({Gt(0), Lt(0)}), even though 1 and 2 both
+// match Gt(0). The reason is that different matchers must be used for
+// elements in different slots of the container.
+//
+// The matchers can be specified as an array, a pointer and count, a container,
+// an initializer list, or an STL iterator range. In each of these cases, the
+// underlying matchers can be either values or matchers.
+
+template <typename Iter>
+inline internal::UnorderedElementsAreArrayMatcher<
+ typename ::std::iterator_traits<Iter>::value_type>
+IsSubsetOf(Iter first, Iter last) {
+ typedef typename ::std::iterator_traits<Iter>::value_type T;
+ return internal::UnorderedElementsAreArrayMatcher<T>(
+ internal::UnorderedMatcherRequire::Subset, first, last);
+}
+
+template <typename T>
+inline internal::UnorderedElementsAreArrayMatcher<T> IsSubsetOf(
+ const T* pointer, size_t count) {
+ return IsSubsetOf(pointer, pointer + count);
+}
+
+template <typename T, size_t N>
+inline internal::UnorderedElementsAreArrayMatcher<T> IsSubsetOf(
+ const T (&array)[N]) {
+ return IsSubsetOf(array, N);
+}
+
+template <typename Container>
+inline internal::UnorderedElementsAreArrayMatcher<
+ typename Container::value_type>
+IsSubsetOf(const Container& container) {
+ return IsSubsetOf(container.begin(), container.end());
+}
+
+template <typename T>
+inline internal::UnorderedElementsAreArrayMatcher<T> IsSubsetOf(
+ ::std::initializer_list<T> xs) {
+ return IsSubsetOf(xs.begin(), xs.end());
+}
+
// Matches an STL-style container or a native array that contains only
// elements matching the given value or matcher.
//
-// Each(m) is semantically equivalent to Not(Contains(Not(m))). Only
+// Each(m) is semantically equivalent to `Not(Contains(Not(m)))`. Only
// the messages are different.
//
// Examples:
first_matcher, second_matcher);
}
+namespace no_adl {
+// Conditional() creates a matcher that conditionally uses either the first or
+// second matcher provided. For example, we could create an `equal if, and only
+// if' matcher using the Conditonal wrapper as follows:
+//
+// EXPECT_THAT(result, Conditional(condition, Eq(expected), Ne(expected)));
+template <typename MatcherTrue, typename MatcherFalse>
+internal::ConditionalMatcher<MatcherTrue, MatcherFalse> Conditional(
+ bool condition, MatcherTrue matcher_true, MatcherFalse matcher_false) {
+ return internal::ConditionalMatcher<MatcherTrue, MatcherFalse>(
+ condition, std::move(matcher_true), std::move(matcher_false));
+}
+
+// FieldsAre(matchers...) matches piecewise the fields of compatible structs.
+// These include those that support `get<I>(obj)`, and when structured bindings
+// are enabled any class that supports them.
+// In particular, `std::tuple`, `std::pair`, `std::array` and aggregate types.
+template <typename... M>
+internal::FieldsAreMatcher<typename std::decay<M>::type...> FieldsAre(
+ M&&... matchers) {
+ return internal::FieldsAreMatcher<typename std::decay<M>::type...>(
+ std::forward<M>(matchers)...);
+}
+
+// Creates a matcher that matches a pointer (raw or smart) that matches
+// inner_matcher.
+template <typename InnerMatcher>
+inline internal::PointerMatcher<InnerMatcher> Pointer(
+ const InnerMatcher& inner_matcher) {
+ return internal::PointerMatcher<InnerMatcher>(inner_matcher);
+}
+
+// Creates a matcher that matches an object that has an address that matches
+// inner_matcher.
+template <typename InnerMatcher>
+inline internal::AddressMatcher<InnerMatcher> Address(
+ const InnerMatcher& inner_matcher) {
+ return internal::AddressMatcher<InnerMatcher>(inner_matcher);
+}
+} // namespace no_adl
+
// Returns a predicate that is satisfied by anything that matches the
// given matcher.
template <typename M>
return internal::MatcherAsPredicate<M>(matcher);
}
-// Returns true iff the value matches the matcher.
+// Returns true if and only if the value matches the matcher.
template <typename T, typename M>
inline bool Value(const T& value, M matcher) {
return testing::Matches(matcher)(value);
return SafeMatcherCast<const T&>(matcher).MatchAndExplain(value, listener);
}
-#if GTEST_LANG_CXX11
-// Define variadic matcher versions. They are overloaded in
-// gmock-generated-matchers.h for the cases supported by pre C++11 compilers.
+// Returns a string representation of the given matcher. Useful for description
+// strings of matchers defined using MATCHER_P* macros that accept matchers as
+// their arguments. For example:
+//
+// MATCHER_P(XAndYThat, matcher,
+// "X that " + DescribeMatcher<int>(matcher, negation) +
+// " and Y that " + DescribeMatcher<double>(matcher, negation)) {
+// return ExplainMatchResult(matcher, arg.x(), result_listener) &&
+// ExplainMatchResult(matcher, arg.y(), result_listener);
+// }
+template <typename T, typename M>
+std::string DescribeMatcher(const M& matcher, bool negation = false) {
+ ::std::stringstream ss;
+ Matcher<T> monomorphic_matcher = SafeMatcherCast<T>(matcher);
+ if (negation) {
+ monomorphic_matcher.DescribeNegationTo(&ss);
+ } else {
+ monomorphic_matcher.DescribeTo(&ss);
+ }
+ return ss.str();
+}
+
+template <typename... Args>
+internal::ElementsAreMatcher<
+ std::tuple<typename std::decay<const Args&>::type...>>
+ElementsAre(const Args&... matchers) {
+ return internal::ElementsAreMatcher<
+ std::tuple<typename std::decay<const Args&>::type...>>(
+ std::make_tuple(matchers...));
+}
+
+template <typename... Args>
+internal::UnorderedElementsAreMatcher<
+ std::tuple<typename std::decay<const Args&>::type...>>
+UnorderedElementsAre(const Args&... matchers) {
+ return internal::UnorderedElementsAreMatcher<
+ std::tuple<typename std::decay<const Args&>::type...>>(
+ std::make_tuple(matchers...));
+}
+
+// Define variadic matcher versions.
template <typename... Args>
-inline internal::AllOfMatcher<Args...> AllOf(const Args&... matchers) {
- return internal::AllOfMatcher<Args...>(matchers...);
+internal::AllOfMatcher<typename std::decay<const Args&>::type...> AllOf(
+ const Args&... matchers) {
+ return internal::AllOfMatcher<typename std::decay<const Args&>::type...>(
+ matchers...);
}
template <typename... Args>
-inline internal::AnyOfMatcher<Args...> AnyOf(const Args&... matchers) {
- return internal::AnyOfMatcher<Args...>(matchers...);
+internal::AnyOfMatcher<typename std::decay<const Args&>::type...> AnyOf(
+ const Args&... matchers) {
+ return internal::AnyOfMatcher<typename std::decay<const Args&>::type...>(
+ matchers...);
+}
+
+// AnyOfArray(array)
+// AnyOfArray(pointer, count)
+// AnyOfArray(container)
+// AnyOfArray({ e1, e2, ..., en })
+// AnyOfArray(iterator_first, iterator_last)
+//
+// AnyOfArray() verifies whether a given value matches any member of a
+// collection of matchers.
+//
+// AllOfArray(array)
+// AllOfArray(pointer, count)
+// AllOfArray(container)
+// AllOfArray({ e1, e2, ..., en })
+// AllOfArray(iterator_first, iterator_last)
+//
+// AllOfArray() verifies whether a given value matches all members of a
+// collection of matchers.
+//
+// The matchers can be specified as an array, a pointer and count, a container,
+// an initializer list, or an STL iterator range. In each of these cases, the
+// underlying matchers can be either values or matchers.
+
+template <typename Iter>
+inline internal::AnyOfArrayMatcher<
+ typename ::std::iterator_traits<Iter>::value_type>
+AnyOfArray(Iter first, Iter last) {
+ return internal::AnyOfArrayMatcher<
+ typename ::std::iterator_traits<Iter>::value_type>(first, last);
+}
+
+template <typename Iter>
+inline internal::AllOfArrayMatcher<
+ typename ::std::iterator_traits<Iter>::value_type>
+AllOfArray(Iter first, Iter last) {
+ return internal::AllOfArrayMatcher<
+ typename ::std::iterator_traits<Iter>::value_type>(first, last);
+}
+
+template <typename T>
+inline internal::AnyOfArrayMatcher<T> AnyOfArray(const T* ptr, size_t count) {
+ return AnyOfArray(ptr, ptr + count);
+}
+
+template <typename T>
+inline internal::AllOfArrayMatcher<T> AllOfArray(const T* ptr, size_t count) {
+ return AllOfArray(ptr, ptr + count);
+}
+
+template <typename T, size_t N>
+inline internal::AnyOfArrayMatcher<T> AnyOfArray(const T (&array)[N]) {
+ return AnyOfArray(array, N);
}
-#endif // GTEST_LANG_CXX11
+template <typename T, size_t N>
+inline internal::AllOfArrayMatcher<T> AllOfArray(const T (&array)[N]) {
+ return AllOfArray(array, N);
+}
+
+template <typename Container>
+inline internal::AnyOfArrayMatcher<typename Container::value_type> AnyOfArray(
+ const Container& container) {
+ return AnyOfArray(container.begin(), container.end());
+}
+
+template <typename Container>
+inline internal::AllOfArrayMatcher<typename Container::value_type> AllOfArray(
+ const Container& container) {
+ return AllOfArray(container.begin(), container.end());
+}
+
+template <typename T>
+inline internal::AnyOfArrayMatcher<T> AnyOfArray(
+ ::std::initializer_list<T> xs) {
+ return AnyOfArray(xs.begin(), xs.end());
+}
+
+template <typename T>
+inline internal::AllOfArrayMatcher<T> AllOfArray(
+ ::std::initializer_list<T> xs) {
+ return AllOfArray(xs.begin(), xs.end());
+}
+
+// Args<N1, N2, ..., Nk>(a_matcher) matches a tuple if the selected
+// fields of it matches a_matcher. C++ doesn't support default
+// arguments for function templates, so we have to overload it.
+template <size_t... k, typename InnerMatcher>
+internal::ArgsMatcher<typename std::decay<InnerMatcher>::type, k...> Args(
+ InnerMatcher&& matcher) {
+ return internal::ArgsMatcher<typename std::decay<InnerMatcher>::type, k...>(
+ std::forward<InnerMatcher>(matcher));
+}
// AllArgs(m) is a synonym of m. This is useful in
//
template <typename InnerMatcher>
inline InnerMatcher AllArgs(const InnerMatcher& matcher) { return matcher; }
+// Returns a matcher that matches the value of an optional<> type variable.
+// The matcher implementation only uses '!arg' and requires that the optional<>
+// type has a 'value_type' member type and that '*arg' is of type 'value_type'
+// and is printable using 'PrintToString'. It is compatible with
+// std::optional/std::experimental::optional.
+// Note that to compare an optional type variable against nullopt you should
+// use Eq(nullopt) and not Eq(Optional(nullopt)). The latter implies that the
+// optional value contains an optional itself.
+template <typename ValueMatcher>
+inline internal::OptionalMatcher<ValueMatcher> Optional(
+ const ValueMatcher& value_matcher) {
+ return internal::OptionalMatcher<ValueMatcher>(value_matcher);
+}
+
+// Returns a matcher that matches the value of a absl::any type variable.
+template <typename T>
+PolymorphicMatcher<internal::any_cast_matcher::AnyCastMatcher<T> > AnyWith(
+ const Matcher<const T&>& matcher) {
+ return MakePolymorphicMatcher(
+ internal::any_cast_matcher::AnyCastMatcher<T>(matcher));
+}
+
+// Returns a matcher that matches the value of a variant<> type variable.
+// The matcher implementation uses ADL to find the holds_alternative and get
+// functions.
+// It is compatible with std::variant.
+template <typename T>
+PolymorphicMatcher<internal::variant_matcher::VariantMatcher<T> > VariantWith(
+ const Matcher<const T&>& matcher) {
+ return MakePolymorphicMatcher(
+ internal::variant_matcher::VariantMatcher<T>(matcher));
+}
+
+#if GTEST_HAS_EXCEPTIONS
+
+// Anything inside the `internal` namespace is internal to the implementation
+// and must not be used in user code!
+namespace internal {
+
+class WithWhatMatcherImpl {
+ public:
+ WithWhatMatcherImpl(Matcher<std::string> matcher)
+ : matcher_(std::move(matcher)) {}
+
+ void DescribeTo(std::ostream* os) const {
+ *os << "contains .what() that ";
+ matcher_.DescribeTo(os);
+ }
+
+ void DescribeNegationTo(std::ostream* os) const {
+ *os << "contains .what() that does not ";
+ matcher_.DescribeTo(os);
+ }
+
+ template <typename Err>
+ bool MatchAndExplain(const Err& err, MatchResultListener* listener) const {
+ *listener << "which contains .what() that ";
+ return matcher_.MatchAndExplain(err.what(), listener);
+ }
+
+ private:
+ const Matcher<std::string> matcher_;
+};
+
+inline PolymorphicMatcher<WithWhatMatcherImpl> WithWhat(
+ Matcher<std::string> m) {
+ return MakePolymorphicMatcher(WithWhatMatcherImpl(std::move(m)));
+}
+
+template <typename Err>
+class ExceptionMatcherImpl {
+ class NeverThrown {
+ public:
+ const char* what() const noexcept {
+ return "this exception should never be thrown";
+ }
+ };
+
+ // If the matchee raises an exception of a wrong type, we'd like to
+ // catch it and print its message and type. To do that, we add an additional
+ // catch clause:
+ //
+ // try { ... }
+ // catch (const Err&) { /* an expected exception */ }
+ // catch (const std::exception&) { /* exception of a wrong type */ }
+ //
+ // However, if the `Err` itself is `std::exception`, we'd end up with two
+ // identical `catch` clauses:
+ //
+ // try { ... }
+ // catch (const std::exception&) { /* an expected exception */ }
+ // catch (const std::exception&) { /* exception of a wrong type */ }
+ //
+ // This can cause a warning or an error in some compilers. To resolve
+ // the issue, we use a fake error type whenever `Err` is `std::exception`:
+ //
+ // try { ... }
+ // catch (const std::exception&) { /* an expected exception */ }
+ // catch (const NeverThrown&) { /* exception of a wrong type */ }
+ using DefaultExceptionType = typename std::conditional<
+ std::is_same<typename std::remove_cv<
+ typename std::remove_reference<Err>::type>::type,
+ std::exception>::value,
+ const NeverThrown&, const std::exception&>::type;
+
+ public:
+ ExceptionMatcherImpl(Matcher<const Err&> matcher)
+ : matcher_(std::move(matcher)) {}
+
+ void DescribeTo(std::ostream* os) const {
+ *os << "throws an exception which is a " << GetTypeName<Err>();
+ *os << " which ";
+ matcher_.DescribeTo(os);
+ }
+
+ void DescribeNegationTo(std::ostream* os) const {
+ *os << "throws an exception which is not a " << GetTypeName<Err>();
+ *os << " which ";
+ matcher_.DescribeNegationTo(os);
+ }
+
+ template <typename T>
+ bool MatchAndExplain(T&& x, MatchResultListener* listener) const {
+ try {
+ (void)(std::forward<T>(x)());
+ } catch (const Err& err) {
+ *listener << "throws an exception which is a " << GetTypeName<Err>();
+ *listener << " ";
+ return matcher_.MatchAndExplain(err, listener);
+ } catch (DefaultExceptionType err) {
+#if GTEST_HAS_RTTI
+ *listener << "throws an exception of type " << GetTypeName(typeid(err));
+ *listener << " ";
+#else
+ *listener << "throws an std::exception-derived type ";
+#endif
+ *listener << "with description \"" << err.what() << "\"";
+ return false;
+ } catch (...) {
+ *listener << "throws an exception of an unknown type";
+ return false;
+ }
+
+ *listener << "does not throw any exception";
+ return false;
+ }
+
+ private:
+ const Matcher<const Err&> matcher_;
+};
+
+} // namespace internal
+
+// Throws()
+// Throws(exceptionMatcher)
+// ThrowsMessage(messageMatcher)
+//
+// This matcher accepts a callable and verifies that when invoked, it throws
+// an exception with the given type and properties.
+//
+// Examples:
+//
+// EXPECT_THAT(
+// []() { throw std::runtime_error("message"); },
+// Throws<std::runtime_error>());
+//
+// EXPECT_THAT(
+// []() { throw std::runtime_error("message"); },
+// ThrowsMessage<std::runtime_error>(HasSubstr("message")));
+//
+// EXPECT_THAT(
+// []() { throw std::runtime_error("message"); },
+// Throws<std::runtime_error>(
+// Property(&std::runtime_error::what, HasSubstr("message"))));
+
+template <typename Err>
+PolymorphicMatcher<internal::ExceptionMatcherImpl<Err>> Throws() {
+ return MakePolymorphicMatcher(
+ internal::ExceptionMatcherImpl<Err>(A<const Err&>()));
+}
+
+template <typename Err, typename ExceptionMatcher>
+PolymorphicMatcher<internal::ExceptionMatcherImpl<Err>> Throws(
+ const ExceptionMatcher& exception_matcher) {
+ // Using matcher cast allows users to pass a matcher of a more broad type.
+ // For example user may want to pass Matcher<std::exception>
+ // to Throws<std::runtime_error>, or Matcher<int64> to Throws<int32>.
+ return MakePolymorphicMatcher(internal::ExceptionMatcherImpl<Err>(
+ SafeMatcherCast<const Err&>(exception_matcher)));
+}
+
+template <typename Err, typename MessageMatcher>
+PolymorphicMatcher<internal::ExceptionMatcherImpl<Err>> ThrowsMessage(
+ MessageMatcher&& message_matcher) {
+ static_assert(std::is_base_of<std::exception, Err>::value,
+ "expected an std::exception-derived type");
+ return Throws<Err>(internal::WithWhat(
+ MatcherCast<std::string>(std::forward<MessageMatcher>(message_matcher))));
+}
+
+#endif // GTEST_HAS_EXCEPTIONS
+
// These macros allow using matchers to check values in Google Test
// tests. ASSERT_THAT(value, matcher) and EXPECT_THAT(value, matcher)
-// succeed iff the value matches the matcher. If the assertion fails,
-// the value and the description of the matcher will be printed.
+// succeed if and only if the value matches the matcher. If the assertion
+// fails, the value and the description of the matcher will be printed.
#define ASSERT_THAT(value, matcher) ASSERT_PRED_FORMAT1(\
::testing::internal::MakePredicateFormatterFromMatcher(matcher), value)
#define EXPECT_THAT(value, matcher) EXPECT_PRED_FORMAT1(\
::testing::internal::MakePredicateFormatterFromMatcher(matcher), value)
+// MATCHER* macroses itself are listed below.
+#define MATCHER(name, description) \
+ class name##Matcher \
+ : public ::testing::internal::MatcherBaseImpl<name##Matcher> { \
+ public: \
+ template <typename arg_type> \
+ class gmock_Impl : public ::testing::MatcherInterface<const arg_type&> { \
+ public: \
+ gmock_Impl() {} \
+ bool MatchAndExplain( \
+ const arg_type& arg, \
+ ::testing::MatchResultListener* result_listener) const override; \
+ void DescribeTo(::std::ostream* gmock_os) const override { \
+ *gmock_os << FormatDescription(false); \
+ } \
+ void DescribeNegationTo(::std::ostream* gmock_os) const override { \
+ *gmock_os << FormatDescription(true); \
+ } \
+ \
+ private: \
+ ::std::string FormatDescription(bool negation) const { \
+ /* NOLINTNEXTLINE readability-redundant-string-init */ \
+ ::std::string gmock_description = (description); \
+ if (!gmock_description.empty()) { \
+ return gmock_description; \
+ } \
+ return ::testing::internal::FormatMatcherDescription(negation, #name, \
+ {}); \
+ } \
+ }; \
+ }; \
+ GTEST_ATTRIBUTE_UNUSED_ inline name##Matcher name() { return {}; } \
+ template <typename arg_type> \
+ bool name##Matcher::gmock_Impl<arg_type>::MatchAndExplain( \
+ const arg_type& arg, \
+ ::testing::MatchResultListener* result_listener GTEST_ATTRIBUTE_UNUSED_) \
+ const
+
+#define MATCHER_P(name, p0, description) \
+ GMOCK_INTERNAL_MATCHER(name, name##MatcherP, description, (p0))
+#define MATCHER_P2(name, p0, p1, description) \
+ GMOCK_INTERNAL_MATCHER(name, name##MatcherP2, description, (p0, p1))
+#define MATCHER_P3(name, p0, p1, p2, description) \
+ GMOCK_INTERNAL_MATCHER(name, name##MatcherP3, description, (p0, p1, p2))
+#define MATCHER_P4(name, p0, p1, p2, p3, description) \
+ GMOCK_INTERNAL_MATCHER(name, name##MatcherP4, description, (p0, p1, p2, p3))
+#define MATCHER_P5(name, p0, p1, p2, p3, p4, description) \
+ GMOCK_INTERNAL_MATCHER(name, name##MatcherP5, description, \
+ (p0, p1, p2, p3, p4))
+#define MATCHER_P6(name, p0, p1, p2, p3, p4, p5, description) \
+ GMOCK_INTERNAL_MATCHER(name, name##MatcherP6, description, \
+ (p0, p1, p2, p3, p4, p5))
+#define MATCHER_P7(name, p0, p1, p2, p3, p4, p5, p6, description) \
+ GMOCK_INTERNAL_MATCHER(name, name##MatcherP7, description, \
+ (p0, p1, p2, p3, p4, p5, p6))
+#define MATCHER_P8(name, p0, p1, p2, p3, p4, p5, p6, p7, description) \
+ GMOCK_INTERNAL_MATCHER(name, name##MatcherP8, description, \
+ (p0, p1, p2, p3, p4, p5, p6, p7))
+#define MATCHER_P9(name, p0, p1, p2, p3, p4, p5, p6, p7, p8, description) \
+ GMOCK_INTERNAL_MATCHER(name, name##MatcherP9, description, \
+ (p0, p1, p2, p3, p4, p5, p6, p7, p8))
+#define MATCHER_P10(name, p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, description) \
+ GMOCK_INTERNAL_MATCHER(name, name##MatcherP10, description, \
+ (p0, p1, p2, p3, p4, p5, p6, p7, p8, p9))
+
+#define GMOCK_INTERNAL_MATCHER(name, full_name, description, args) \
+ template <GMOCK_INTERNAL_MATCHER_TEMPLATE_PARAMS(args)> \
+ class full_name : public ::testing::internal::MatcherBaseImpl< \
+ full_name<GMOCK_INTERNAL_MATCHER_TYPE_PARAMS(args)>> { \
+ public: \
+ using full_name::MatcherBaseImpl::MatcherBaseImpl; \
+ template <typename arg_type> \
+ class gmock_Impl : public ::testing::MatcherInterface<const arg_type&> { \
+ public: \
+ explicit gmock_Impl(GMOCK_INTERNAL_MATCHER_FUNCTION_ARGS(args)) \
+ : GMOCK_INTERNAL_MATCHER_FORWARD_ARGS(args) {} \
+ bool MatchAndExplain( \
+ const arg_type& arg, \
+ ::testing::MatchResultListener* result_listener) const override; \
+ void DescribeTo(::std::ostream* gmock_os) const override { \
+ *gmock_os << FormatDescription(false); \
+ } \
+ void DescribeNegationTo(::std::ostream* gmock_os) const override { \
+ *gmock_os << FormatDescription(true); \
+ } \
+ GMOCK_INTERNAL_MATCHER_MEMBERS(args) \
+ \
+ private: \
+ ::std::string FormatDescription(bool negation) const { \
+ ::std::string gmock_description = (description); \
+ if (!gmock_description.empty()) { \
+ return gmock_description; \
+ } \
+ return ::testing::internal::FormatMatcherDescription( \
+ negation, #name, \
+ ::testing::internal::UniversalTersePrintTupleFieldsToStrings( \
+ ::std::tuple<GMOCK_INTERNAL_MATCHER_TYPE_PARAMS(args)>( \
+ GMOCK_INTERNAL_MATCHER_MEMBERS_USAGE(args)))); \
+ } \
+ }; \
+ }; \
+ template <GMOCK_INTERNAL_MATCHER_TEMPLATE_PARAMS(args)> \
+ inline full_name<GMOCK_INTERNAL_MATCHER_TYPE_PARAMS(args)> name( \
+ GMOCK_INTERNAL_MATCHER_FUNCTION_ARGS(args)) { \
+ return full_name<GMOCK_INTERNAL_MATCHER_TYPE_PARAMS(args)>( \
+ GMOCK_INTERNAL_MATCHER_ARGS_USAGE(args)); \
+ } \
+ template <GMOCK_INTERNAL_MATCHER_TEMPLATE_PARAMS(args)> \
+ template <typename arg_type> \
+ bool full_name<GMOCK_INTERNAL_MATCHER_TYPE_PARAMS(args)>::gmock_Impl< \
+ arg_type>::MatchAndExplain(const arg_type& arg, \
+ ::testing::MatchResultListener* \
+ result_listener GTEST_ATTRIBUTE_UNUSED_) \
+ const
+
+#define GMOCK_INTERNAL_MATCHER_TEMPLATE_PARAMS(args) \
+ GMOCK_PP_TAIL( \
+ GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_MATCHER_TEMPLATE_PARAM, , args))
+#define GMOCK_INTERNAL_MATCHER_TEMPLATE_PARAM(i_unused, data_unused, arg) \
+ , typename arg##_type
+
+#define GMOCK_INTERNAL_MATCHER_TYPE_PARAMS(args) \
+ GMOCK_PP_TAIL(GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_MATCHER_TYPE_PARAM, , args))
+#define GMOCK_INTERNAL_MATCHER_TYPE_PARAM(i_unused, data_unused, arg) \
+ , arg##_type
+
+#define GMOCK_INTERNAL_MATCHER_FUNCTION_ARGS(args) \
+ GMOCK_PP_TAIL(dummy_first GMOCK_PP_FOR_EACH( \
+ GMOCK_INTERNAL_MATCHER_FUNCTION_ARG, , args))
+#define GMOCK_INTERNAL_MATCHER_FUNCTION_ARG(i, data_unused, arg) \
+ , arg##_type gmock_p##i
+
+#define GMOCK_INTERNAL_MATCHER_FORWARD_ARGS(args) \
+ GMOCK_PP_TAIL(GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_MATCHER_FORWARD_ARG, , args))
+#define GMOCK_INTERNAL_MATCHER_FORWARD_ARG(i, data_unused, arg) \
+ , arg(::std::forward<arg##_type>(gmock_p##i))
+
+#define GMOCK_INTERNAL_MATCHER_MEMBERS(args) \
+ GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_MATCHER_MEMBER, , args)
+#define GMOCK_INTERNAL_MATCHER_MEMBER(i_unused, data_unused, arg) \
+ const arg##_type arg;
+
+#define GMOCK_INTERNAL_MATCHER_MEMBERS_USAGE(args) \
+ GMOCK_PP_TAIL(GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_MATCHER_MEMBER_USAGE, , args))
+#define GMOCK_INTERNAL_MATCHER_MEMBER_USAGE(i_unused, data_unused, arg) , arg
+
+#define GMOCK_INTERNAL_MATCHER_ARGS_USAGE(args) \
+ GMOCK_PP_TAIL(GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_MATCHER_ARG_USAGE, , args))
+#define GMOCK_INTERNAL_MATCHER_ARG_USAGE(i, data_unused, arg_unused) \
+ , gmock_p##i
+
+// To prevent ADL on certain functions we put them on a separate namespace.
+using namespace no_adl; // NOLINT
+
} // namespace testing
+GTEST_DISABLE_MSC_WARNINGS_POP_() // 4251 5046
+
// Include any custom callback matchers added by the local installation.
// We must include this header at the end to make sure it can use the
// declarations from this file.
#include "gmock/internal/custom/gmock-matchers.h"
-#endif // GMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_
+
+#endif // GOOGLEMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_
biod.pnpi.spb.ru / alexxy / gromacs.git / blobdiff