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36 * \brief Tests for pointers.h, e.g. gmx::compat::not_null
38 * \author Mark Abraham <mark.j.abraham@gmail.com>
39 * \ingroup module_compat
43 #include "gromacs/compat/pointers.h"
50 #include <gtest/gtest.h>
52 #include "testutils/testasserts.h"
61 TEST(NotNullConstruction, Works)
63 // shared_ptr<int> is nullptr assignable
64 not_null<std::shared_ptr<int>> sharedPointer(std::make_shared<int>(10));
67 /* The workaround here is needed because the intel implementation
68 * will not trigger the assert when using the pointer without
69 * a valid object. This was needed due to an internal error
70 * being triggered instead with the compiler under this condition.
72 * Death tests can also not be used safely in a parallel environment.
74 # if !defined(__INTEL_COMPILER) || !(__INTEL_COMPILER == 1800 && __INTEL_COMPILER_UPDATE == 0)
75 int* nullPointer = nullptr;
76 GMX_EXPECT_DEATH_IF_SUPPORTED(not_null<int*> invalidNullPointer(nullPointer), "");
81 int* validPointer = &value;
83 not_null<int*> validNotNullPointer(validPointer);
84 GMX_UNUSED_VALUE(validNotNullPointer);
87 not_null<int*> validNotNullPointer = not_null<int*>(validPointer);
88 GMX_UNUSED_VALUE(validNotNullPointer);
92 TEST(NotNullCasting, Works)
97 struct MyDerived : public MyBase
108 not_null<Unrelated*> u{ &unrelated };
110 not_null<MyDerived*> p{ &derived };
111 not_null<MyBase*> q(&base);
112 // Allowed with heterogeneous copy constructor
115 not_null<Unrelated*> t(reinterpret_cast<Unrelated*>(p.get()));
116 EXPECT_EQ(reinterpret_cast<void*>(p.get()), reinterpret_cast<void*>(t.get()));
119 TEST(NotNullAssignment, Works)
122 not_null<int*> p(&i);
126 TEST(MakeNotNull, Works)
131 const not_null<int*> x = make_not_null(&i);
133 not_null<int*> y = make_not_null(&i);
135 not_null<const int*> z = make_not_null(&i);
140 // TODO These should work, but the GSL version of
141 // make_not_null has an auto return type that we can't use
142 // here, so maybe the issue is there.
147 not_null<int *> x = make_not_null(p);
149 not_null<int *> y = make_not_null(p);
151 not_null<const int *> z = make_not_null(p);
157 std::unique_ptr<int> i = std::make_unique<int>(42);
159 const not_null<int*> x = make_not_null(i);
161 not_null<int*> y = make_not_null(i);
163 not_null<const int*> z = make_not_null(i);
168 std::unique_ptr<const int> i = std::make_unique<int>(42);
170 // not_null<int *> does not compile, as expected
171 not_null<const int*> z = make_not_null(i);
176 TEST(NotNull, WorksInContainers)
179 not_null<int*> p(&i);
181 std::vector<not_null<int*>> v;
183 EXPECT_EQ(*v.back(), 12);
186 // TODO We currently don't have infrastructure for checking that e.g.
187 // expected static assertions fire and calls to deleted functions do
188 // not compile. When we do, there are more tests that should be found
191 } // anonymous namespace
192 } // namespace compat