src/gromacs/options/tests/abstractoptionstorage.cpp

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  35 /*! \internal \file
  36  * \brief
  37  * Tests proper handling of option storage.
  38  *
  39  * These tests check that methods in storage objects are called properly in all
  40  * situations, and also that the OptionStorageTemplate class behaves properly.
  41  *
  42  * \author Teemu Murtola <teemu.murtola@gmail.com>
  43  * \ingroup module_options
  44  */
  45 #include <vector>
  46 #include <string>
  47
  48 #include <gmock/gmock.h>
  49 #include <gtest/gtest.h>
  50
  51 #include "gromacs/options/abstractoption.h"
  52 #include "gromacs/options/options.h"
  53 #include "gromacs/options/optionstoragetemplate.h"
  54 #include "gromacs/options/optionsassigner.h"
  55 #include "gromacs/utility/exceptions.h"
  56
  57 #include "testutils/testasserts.h"
  58 #include "testutils/testexceptions.h"
  59
  60 namespace
  61 {
  62
  63 class MockOption;
  64 class MockOptionStorage;
  65
  66 class MockOptionInfo : public gmx::OptionInfo
  67 {
  68     public:
  69         //! Creates an option info object for the given option.
  70         explicit MockOptionInfo(MockOptionStorage *option);
  71
  72         MockOptionStorage &option();
  73 };
  74
  75 /*! \brief
  76  * Mock implementation of an option storage class for unit testing.
  77  *
  78  * Provides facilities for checking that correct methods are called, and for
  79  * controlling how they add values using the base class methods.
  80  *
  81  * \ingroup module_options
  82  */
  83 class MockOptionStorage : public gmx::OptionStorageTemplate<std::string>
  84 {
  85     public:
  86         /*! \brief
  87          * Initializes the storage from option settings.
  88          *
  89          * \param[in] settings   Storage settings.
  90          */
  91         MockOptionStorage(const MockOption &settings);
  92
  93         /*! \brief
  94          * Calls addValue("dummy") in the base class.
  95          */
  96         void addDummyValue()
  97         {
  98             addValue("dummy");
  99         }
 100         // using MyBase::markAsSet;
 101         // using MyBase::addValue;
 102         // using MyBase::commitValues;
 103         // "using" is correct but MSVC gives error C2248. Workaround:
 104         //! \copydoc gmx::OptionStorageTemplate::markAsSet()
 105         void markAsSet()
 106         {
 107             MyBase::markAsSet();
 108         }
 109         //! \copydoc gmx::OptionStorageTemplate::addValue()
 110         void addValue(const std::string &value)
 111         {
 112             MyBase::addValue(value);
 113         }
 114         //! \copydoc gmx::OptionStorageTemplate::commitValues()
 115         void commitValues()
 116         {
 117             MyBase::commitValues();
 118         }
 119
 120         virtual gmx::OptionInfo &optionInfo() { return info_; }
 121         // These are not used.
 122         virtual std::string typeString() const { return "mock"; }
 123         virtual std::string formatSingleValue(const std::string & /*value*/) const
 124         {
 125             return "";
 126         }
 127
 128         MOCK_METHOD1(convertValue, void(const std::string &value));
 129         MOCK_METHOD1(processSetValues, void(ValueList *values));
 130         MOCK_METHOD0(processAll, void());
 131
 132     private:
 133         MockOptionInfo          info_;
 134 };
 135
 136 /*! \internal \brief
 137  * Specifies an option that has a mock storage object for unit testing.
 138  *
 139  * \ingroup module_options
 140  */
 141 class MockOption : public gmx::OptionTemplate<std::string, MockOption>
 142 {
 143     public:
 144         //! OptionInfo subclass corresponding to this option type.
 145         typedef MockOptionInfo InfoType;
 146
 147         //! Initializes an option with the given name.
 148         explicit MockOption(const char *name)
 149             : MyBase(name)
 150         {
 151         }
 152
 153     private:
 154         virtual gmx::AbstractOptionStorage *createStorage(
 155             const gmx::OptionManagerContainer & /*managers*/) const
 156         {
 157             return new MockOptionStorage(*this);
 158         }
 159 };
 160
 161 MockOptionStorage::MockOptionStorage(const MockOption &settings)
 162     : MyBase(settings), info_(this)
 163 {
 164     using ::testing::_;
 165     using ::testing::Invoke;
 166     using ::testing::WithArg;
 167     ON_CALL(*this, convertValue(_))
 168         .WillByDefault(WithArg<0>(Invoke(this, &MockOptionStorage::addValue)));
 169 }
 170
 171 MockOptionInfo::MockOptionInfo(MockOptionStorage *option)
 172     : gmx::OptionInfo(option)
 173 {
 174 }
 175
 176 MockOptionStorage &MockOptionInfo::option()
 177 {
 178     return static_cast<MockOptionStorage &>(gmx::OptionInfo::option());
 179 }
 180
 181 /*
 182  * Tests that finish() can set a required option even if the user has not
 183  * provided it.
 184  */
 185 TEST(AbstractOptionStorageTest, HandlesSetInFinish)
 186 {
 187     gmx::Options                options(NULL, NULL);
 188     std::vector<std::string>    values;
 189     MockOptionInfo             *info = options.addOption(
 190                 MockOption("name").required().storeVector(&values));
 191     MockOptionStorage          *mock = &info->option();
 192     {
 193         ::testing::InSequence dummy;
 194         using ::testing::DoAll;
 195         using ::testing::InvokeWithoutArgs;
 196         EXPECT_CALL(*mock, processAll())
 197             .WillOnce(DoAll(InvokeWithoutArgs(mock, &MockOptionStorage::markAsSet),
 198                             InvokeWithoutArgs(mock, &MockOptionStorage::addDummyValue),
 199                             InvokeWithoutArgs(mock, &MockOptionStorage::commitValues)));
 200     }
 201
 202     gmx::OptionsAssigner assigner(&options);
 203     EXPECT_NO_THROW_GMX(assigner.start());
 204     EXPECT_NO_THROW_GMX(assigner.finish());
 205     EXPECT_NO_THROW_GMX(options.finish());
 206
 207     ASSERT_EQ(1U, values.size());
 208     EXPECT_EQ("dummy", values[0]);
 209 }
 210
 211 /*
 212  * Tests that storage works if the storage object does not add a value in a
 213  * call to appendValue().
 214  */
 215 TEST(AbstractOptionStorageTest, HandlesValueRemoval)
 216 {
 217     gmx::Options                options(NULL, NULL);
 218     std::vector<std::string>    values;
 219     MockOptionInfo             *info = options.addOption(
 220                 MockOption("name").storeVector(&values).multiValue());
 221     MockOptionStorage          *mock = &info->option();
 222     {
 223         ::testing::InSequence dummy;
 224         using ::testing::ElementsAre;
 225         using ::testing::Pointee;
 226         using ::testing::Return;
 227         EXPECT_CALL(*mock, convertValue("a"));
 228         EXPECT_CALL(*mock, convertValue("b"))
 229             .WillOnce(Return());
 230         EXPECT_CALL(*mock, convertValue("c"));
 231         EXPECT_CALL(*mock, processSetValues(Pointee(ElementsAre("a", "c"))));
 232         EXPECT_CALL(*mock, processAll());
 233     }
 234
 235     gmx::OptionsAssigner assigner(&options);
 236     EXPECT_NO_THROW_GMX(assigner.start());
 237     ASSERT_NO_THROW_GMX(assigner.startOption("name"));
 238     EXPECT_NO_THROW_GMX(assigner.appendValue("a"));
 239     EXPECT_NO_THROW_GMX(assigner.appendValue("b"));
 240     EXPECT_NO_THROW_GMX(assigner.appendValue("c"));
 241     EXPECT_NO_THROW_GMX(assigner.finishOption());
 242     EXPECT_NO_THROW_GMX(assigner.finish());
 243     EXPECT_NO_THROW_GMX(options.finish());
 244
 245     ASSERT_EQ(2U, values.size());
 246     EXPECT_EQ("a", values[0]);
 247     EXPECT_EQ("c", values[1]);
 248 }
 249
 250 /*
 251  * Tests that storage works if the storage object adds more than one value in
 252  * one call to appendValue().
 253  */
 254 TEST(AbstractOptionStorageTest, HandlesValueAddition)
 255 {
 256     gmx::Options                options(NULL, NULL);
 257     std::vector<std::string>    values;
 258     MockOptionInfo             *info = options.addOption(
 259                 MockOption("name").storeVector(&values).multiValue());
 260     MockOptionStorage          *mock = &info->option();
 261     {
 262         ::testing::InSequence dummy;
 263         using ::testing::DoAll;
 264         using ::testing::ElementsAre;
 265         using ::testing::InvokeWithoutArgs;
 266         using ::testing::Pointee;
 267         EXPECT_CALL(*mock, convertValue("a"));
 268         EXPECT_CALL(*mock, convertValue("b"))
 269             .WillOnce(DoAll(InvokeWithoutArgs(mock, &MockOptionStorage::addDummyValue),
 270                             InvokeWithoutArgs(mock, &MockOptionStorage::addDummyValue)));
 271         EXPECT_CALL(*mock, processSetValues(Pointee(ElementsAre("a", "dummy", "dummy"))));
 272         EXPECT_CALL(*mock, processAll());
 273     }
 274
 275     gmx::OptionsAssigner assigner(&options);
 276     EXPECT_NO_THROW_GMX(assigner.start());
 277     ASSERT_NO_THROW_GMX(assigner.startOption("name"));
 278     EXPECT_NO_THROW_GMX(assigner.appendValue("a"));
 279     EXPECT_NO_THROW_GMX(assigner.appendValue("b"));
 280     EXPECT_NO_THROW_GMX(assigner.finishOption());
 281     EXPECT_NO_THROW_GMX(assigner.finish());
 282     EXPECT_NO_THROW_GMX(options.finish());
 283
 284     ASSERT_EQ(3U, values.size());
 285     EXPECT_EQ("a", values[0]);
 286     EXPECT_EQ("dummy", values[1]);
 287     EXPECT_EQ("dummy", values[2]);
 288 }
 289
 290 /*
 291  * Tests that storage works if the storage object adds more than one value in
 292  * one call to appendValue(), and this results in too many values.
 293  */
 294 TEST(AbstractOptionStorageTest, HandlesTooManyValueAddition)
 295 {
 296     gmx::Options                options(NULL, NULL);
 297     std::vector<std::string>    values;
 298     MockOptionInfo             *info = options.addOption(
 299                 MockOption("name").storeVector(&values).valueCount(2));
 300     MockOptionStorage          *mock = &info->option();
 301     {
 302         ::testing::InSequence dummy;
 303         using ::testing::DoAll;
 304         using ::testing::ElementsAre;
 305         using ::testing::InvokeWithoutArgs;
 306         using ::testing::Pointee;
 307         EXPECT_CALL(*mock, convertValue("a"));
 308         EXPECT_CALL(*mock, convertValue("b"))
 309             .WillOnce(DoAll(InvokeWithoutArgs(mock, &MockOptionStorage::addDummyValue),
 310                             InvokeWithoutArgs(mock, &MockOptionStorage::addDummyValue)));
 311         EXPECT_CALL(*mock, processAll());
 312     }
 313
 314     gmx::OptionsAssigner assigner(&options);
 315     EXPECT_NO_THROW_GMX(assigner.start());
 316     ASSERT_NO_THROW_GMX(assigner.startOption("name"));
 317     EXPECT_NO_THROW_GMX(assigner.appendValue("a"));
 318     EXPECT_THROW_GMX(assigner.appendValue("b"), gmx::InvalidInputError);
 319     EXPECT_NO_THROW_GMX(assigner.finishOption());
 320     EXPECT_NO_THROW_GMX(assigner.finish());
 321     EXPECT_NO_THROW_GMX(options.finish());
 322
 323     ASSERT_TRUE(values.empty());
 324 }
 325
 326 /*
 327  * Tests that the storage object is properly invoked even if no output values
 328  * should be produced.
 329  */
 330 TEST(AbstractOptionStorageTest, AllowsEmptyValues)
 331 {
 332     gmx::Options                options(NULL, NULL);
 333     std::vector<std::string>    values;
 334     MockOptionInfo             *info = options.addOption(
 335                 MockOption("name").storeVector(&values).valueCount(0));
 336     MockOptionStorage          *mock = &info->option();
 337     {
 338         ::testing::InSequence dummy;
 339         using ::testing::DoAll;
 340         using ::testing::ElementsAre;
 341         using ::testing::Pointee;
 342         using ::testing::Return;
 343         EXPECT_CALL(*mock, convertValue("a"))
 344             .WillOnce(Return());
 345         EXPECT_CALL(*mock, processSetValues(Pointee(ElementsAre())));
 346         EXPECT_CALL(*mock, processAll());
 347     }
 348
 349     gmx::OptionsAssigner assigner(&options);
 350     EXPECT_NO_THROW_GMX(assigner.start());
 351     EXPECT_NO_THROW_GMX(assigner.startOption("name"));
 352     EXPECT_NO_THROW_GMX(assigner.appendValue("a"));
 353     EXPECT_NO_THROW_GMX(assigner.finishOption());
 354     EXPECT_NO_THROW_GMX(assigner.finish());
 355     EXPECT_NO_THROW_GMX(options.finish());
 356
 357     ASSERT_EQ(0U, values.size());
 358 }
 359
 360 } // namespace