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| 1 // Copyright 2008, Google Inc. | |
| 2 // All rights reserved. | |
| 3 // | |
| 4 // Redistribution and use in source and binary forms, with or without | |
| 5 // modification, are permitted provided that the following conditions are | |
| 6 // met: | |
| 7 // | |
| 8 // * Redistributions of source code must retain the above copyright | |
| 9 // notice, this list of conditions and the following disclaimer. | |
| 10 // * Redistributions in binary form must reproduce the above | |
| 11 // copyright notice, this list of conditions and the following disclaimer | |
| 12 // in the documentation and/or other materials provided with the | |
| 13 // distribution. | |
| 14 // * Neither the name of Google Inc. nor the names of its | |
| 15 // contributors may be used to endorse or promote products derived from | |
| 16 // this software without specific prior written permission. | |
| 17 // | |
| 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 // | |
| 30 // Author: vladl@google.com (Vlad Losev) | |
| 31 // | |
| 32 // Tests for Google Test itself. This file verifies that the parameter | |
| 33 // generators objects produce correct parameter sequences and that | |
| 34 // Google Test runtime instantiates correct tests from those sequences. | |
| 35 | |
| 36 #include "gtest/gtest.h" | |
| 37 | |
| 38 #if GTEST_HAS_PARAM_TEST | |
| 39 | |
| 40 # include <algorithm> | |
| 41 # include <iostream> | |
| 42 # include <list> | |
| 43 # include <sstream> | |
| 44 # include <string> | |
| 45 # include <vector> | |
| 46 | |
| 47 // To include gtest-internal-inl.h. | |
| 48 # define GTEST_IMPLEMENTATION_ 1 | |
| 49 # include "src/gtest-internal-inl.h" // for UnitTestOptions | |
| 50 # undef GTEST_IMPLEMENTATION_ | |
| 51 | |
| 52 # include "test/gtest-param-test_test.h" | |
| 53 | |
| 54 using ::std::vector; | |
| 55 using ::std::sort; | |
| 56 | |
| 57 using ::testing::AddGlobalTestEnvironment; | |
| 58 using ::testing::Bool; | |
| 59 using ::testing::Message; | |
| 60 using ::testing::Range; | |
| 61 using ::testing::TestWithParam; | |
| 62 using ::testing::Values; | |
| 63 using ::testing::ValuesIn; | |
| 64 | |
| 65 # if GTEST_HAS_COMBINE | |
| 66 using ::testing::Combine; | |
| 67 using ::std::tr1::get; | |
| 68 using ::std::tr1::make_tuple; | |
| 69 using ::std::tr1::tuple; | |
| 70 # endif // GTEST_HAS_COMBINE | |
| 71 | |
| 72 using ::testing::internal::ParamGenerator; | |
| 73 using ::testing::internal::UnitTestOptions; | |
| 74 | |
| 75 // Prints a value to a string. | |
| 76 // | |
| 77 // TODO(wan@google.com): remove PrintValue() when we move matchers and | |
| 78 // EXPECT_THAT() from Google Mock to Google Test. At that time, we | |
| 79 // can write EXPECT_THAT(x, Eq(y)) to compare two tuples x and y, as | |
| 80 // EXPECT_THAT() and the matchers know how to print tuples. | |
| 81 template <typename T> | |
| 82 ::std::string PrintValue(const T& value) { | |
| 83 ::std::stringstream stream; | |
| 84 stream << value; | |
| 85 return stream.str(); | |
| 86 } | |
| 87 | |
| 88 # if GTEST_HAS_COMBINE | |
| 89 | |
| 90 // These overloads allow printing tuples in our tests. We cannot | |
| 91 // define an operator<< for tuples, as that definition needs to be in | |
| 92 // the std namespace in order to be picked up by Google Test via | |
| 93 // Argument-Dependent Lookup, yet defining anything in the std | |
| 94 // namespace in non-STL code is undefined behavior. | |
| 95 | |
| 96 template <typename T1, typename T2> | |
| 97 ::std::string PrintValue(const tuple<T1, T2>& value) { | |
| 98 ::std::stringstream stream; | |
| 99 stream << "(" << get<0>(value) << ", " << get<1>(value) << ")"; | |
| 100 return stream.str(); | |
| 101 } | |
| 102 | |
| 103 template <typename T1, typename T2, typename T3> | |
| 104 ::std::string PrintValue(const tuple<T1, T2, T3>& value) { | |
| 105 ::std::stringstream stream; | |
| 106 stream << "(" << get<0>(value) << ", " << get<1>(value) | |
| 107 << ", "<< get<2>(value) << ")"; | |
| 108 return stream.str(); | |
| 109 } | |
| 110 | |
| 111 template <typename T1, typename T2, typename T3, typename T4, typename T5, | |
| 112 typename T6, typename T7, typename T8, typename T9, typename T10> | |
| 113 ::std::string PrintValue( | |
| 114 const tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>& value) { | |
| 115 ::std::stringstream stream; | |
| 116 stream << "(" << get<0>(value) << ", " << get<1>(value) | |
| 117 << ", "<< get<2>(value) << ", " << get<3>(value) | |
| 118 << ", "<< get<4>(value) << ", " << get<5>(value) | |
| 119 << ", "<< get<6>(value) << ", " << get<7>(value) | |
| 120 << ", "<< get<8>(value) << ", " << get<9>(value) << ")"; | |
| 121 return stream.str(); | |
| 122 } | |
| 123 | |
| 124 # endif // GTEST_HAS_COMBINE | |
| 125 | |
| 126 // Verifies that a sequence generated by the generator and accessed | |
| 127 // via the iterator object matches the expected one using Google Test | |
| 128 // assertions. | |
| 129 template <typename T, size_t N> | |
| 130 void VerifyGenerator(const ParamGenerator<T>& generator, | |
| 131 const T (&expected_values)[N]) { | |
| 132 typename ParamGenerator<T>::iterator it = generator.begin(); | |
| 133 for (size_t i = 0; i < N; ++i) { | |
| 134 ASSERT_FALSE(it == generator.end()) | |
| 135 << "At element " << i << " when accessing via an iterator " | |
| 136 << "created with the copy constructor.\n"; | |
| 137 // We cannot use EXPECT_EQ() here as the values may be tuples, | |
| 138 // which don't support <<. | |
| 139 EXPECT_TRUE(expected_values[i] == *it) | |
| 140 << "where i is " << i | |
| 141 << ", expected_values[i] is " << PrintValue(expected_values[i]) | |
| 142 << ", *it is " << PrintValue(*it) | |
| 143 << ", and 'it' is an iterator created with the copy constructor.\n"; | |
| 144 it++; | |
| 145 } | |
| 146 EXPECT_TRUE(it == generator.end()) | |
| 147 << "At the presumed end of sequence when accessing via an iterator " | |
| 148 << "created with the copy constructor.\n"; | |
| 149 | |
| 150 // Test the iterator assignment. The following lines verify that | |
| 151 // the sequence accessed via an iterator initialized via the | |
| 152 // assignment operator (as opposed to a copy constructor) matches | |
| 153 // just the same. | |
| 154 it = generator.begin(); | |
| 155 for (size_t i = 0; i < N; ++i) { | |
| 156 ASSERT_FALSE(it == generator.end()) | |
| 157 << "At element " << i << " when accessing via an iterator " | |
| 158 << "created with the assignment operator.\n"; | |
| 159 EXPECT_TRUE(expected_values[i] == *it) | |
| 160 << "where i is " << i | |
| 161 << ", expected_values[i] is " << PrintValue(expected_values[i]) | |
| 162 << ", *it is " << PrintValue(*it) | |
| 163 << ", and 'it' is an iterator created with the copy constructor.\n"; | |
| 164 it++; | |
| 165 } | |
| 166 EXPECT_TRUE(it == generator.end()) | |
| 167 << "At the presumed end of sequence when accessing via an iterator " | |
| 168 << "created with the assignment operator.\n"; | |
| 169 } | |
| 170 | |
| 171 template <typename T> | |
| 172 void VerifyGeneratorIsEmpty(const ParamGenerator<T>& generator) { | |
| 173 typename ParamGenerator<T>::iterator it = generator.begin(); | |
| 174 EXPECT_TRUE(it == generator.end()); | |
| 175 | |
| 176 it = generator.begin(); | |
| 177 EXPECT_TRUE(it == generator.end()); | |
| 178 } | |
| 179 | |
| 180 // Generator tests. They test that each of the provided generator functions | |
| 181 // generates an expected sequence of values. The general test pattern | |
| 182 // instantiates a generator using one of the generator functions, | |
| 183 // checks the sequence produced by the generator using its iterator API, | |
| 184 // and then resets the iterator back to the beginning of the sequence | |
| 185 // and checks the sequence again. | |
| 186 | |
| 187 // Tests that iterators produced by generator functions conform to the | |
| 188 // ForwardIterator concept. | |
| 189 TEST(IteratorTest, ParamIteratorConformsToForwardIteratorConcept) { | |
| 190 const ParamGenerator<int> gen = Range(0, 10); | |
| 191 ParamGenerator<int>::iterator it = gen.begin(); | |
| 192 | |
| 193 // Verifies that iterator initialization works as expected. | |
| 194 ParamGenerator<int>::iterator it2 = it; | |
| 195 EXPECT_TRUE(*it == *it2) << "Initialized iterators must point to the " | |
| 196 << "element same as its source points to"; | |
| 197 | |
| 198 // Verifies that iterator assignment works as expected. | |
| 199 it++; | |
| 200 EXPECT_FALSE(*it == *it2); | |
| 201 it2 = it; | |
| 202 EXPECT_TRUE(*it == *it2) << "Assigned iterators must point to the " | |
| 203 << "element same as its source points to"; | |
| 204 | |
| 205 // Verifies that prefix operator++() returns *this. | |
| 206 EXPECT_EQ(&it, &(++it)) << "Result of the prefix operator++ must be " | |
| 207 << "refer to the original object"; | |
| 208 | |
| 209 // Verifies that the result of the postfix operator++ points to the value | |
| 210 // pointed to by the original iterator. | |
| 211 int original_value = *it; // Have to compute it outside of macro call to be | |
| 212 // unaffected by the parameter evaluation order. | |
| 213 EXPECT_EQ(original_value, *(it++)); | |
| 214 | |
| 215 // Verifies that prefix and postfix operator++() advance an iterator | |
| 216 // all the same. | |
| 217 it2 = it; | |
| 218 it++; | |
| 219 ++it2; | |
| 220 EXPECT_TRUE(*it == *it2); | |
| 221 } | |
| 222 | |
| 223 // Tests that Range() generates the expected sequence. | |
| 224 TEST(RangeTest, IntRangeWithDefaultStep) { | |
| 225 const ParamGenerator<int> gen = Range(0, 3); | |
| 226 const int expected_values[] = {0, 1, 2}; | |
| 227 VerifyGenerator(gen, expected_values); | |
| 228 } | |
| 229 | |
| 230 // Edge case. Tests that Range() generates the single element sequence | |
| 231 // as expected when provided with range limits that are equal. | |
| 232 TEST(RangeTest, IntRangeSingleValue) { | |
| 233 const ParamGenerator<int> gen = Range(0, 1); | |
| 234 const int expected_values[] = {0}; | |
| 235 VerifyGenerator(gen, expected_values); | |
| 236 } | |
| 237 | |
| 238 // Edge case. Tests that Range() with generates empty sequence when | |
| 239 // supplied with an empty range. | |
| 240 TEST(RangeTest, IntRangeEmpty) { | |
| 241 const ParamGenerator<int> gen = Range(0, 0); | |
| 242 VerifyGeneratorIsEmpty(gen); | |
| 243 } | |
| 244 | |
| 245 // Tests that Range() with custom step (greater then one) generates | |
| 246 // the expected sequence. | |
| 247 TEST(RangeTest, IntRangeWithCustomStep) { | |
| 248 const ParamGenerator<int> gen = Range(0, 9, 3); | |
| 249 const int expected_values[] = {0, 3, 6}; | |
| 250 VerifyGenerator(gen, expected_values); | |
| 251 } | |
| 252 | |
| 253 // Tests that Range() with custom step (greater then one) generates | |
| 254 // the expected sequence when the last element does not fall on the | |
| 255 // upper range limit. Sequences generated by Range() must not have | |
| 256 // elements beyond the range limits. | |
| 257 TEST(RangeTest, IntRangeWithCustomStepOverUpperBound) { | |
| 258 const ParamGenerator<int> gen = Range(0, 4, 3); | |
| 259 const int expected_values[] = {0, 3}; | |
| 260 VerifyGenerator(gen, expected_values); | |
| 261 } | |
| 262 | |
| 263 // Verifies that Range works with user-defined types that define | |
| 264 // copy constructor, operator=(), operator+(), and operator<(). | |
| 265 class DogAdder { | |
| 266 public: | |
| 267 explicit DogAdder(const char* a_value) : value_(a_value) {} | |
| 268 DogAdder(const DogAdder& other) : value_(other.value_.c_str()) {} | |
| 269 | |
| 270 DogAdder operator=(const DogAdder& other) { | |
| 271 if (this != &other) | |
| 272 value_ = other.value_; | |
| 273 return *this; | |
| 274 } | |
| 275 DogAdder operator+(const DogAdder& other) const { | |
| 276 Message msg; | |
| 277 msg << value_.c_str() << other.value_.c_str(); | |
| 278 return DogAdder(msg.GetString().c_str()); | |
| 279 } | |
| 280 bool operator<(const DogAdder& other) const { | |
| 281 return value_ < other.value_; | |
| 282 } | |
| 283 const ::testing::internal::String& value() const { return value_; } | |
| 284 | |
| 285 private: | |
| 286 ::testing::internal::String value_; | |
| 287 }; | |
| 288 | |
| 289 TEST(RangeTest, WorksWithACustomType) { | |
| 290 const ParamGenerator<DogAdder> gen = | |
| 291 Range(DogAdder("cat"), DogAdder("catdogdog"), DogAdder("dog")); | |
| 292 ParamGenerator<DogAdder>::iterator it = gen.begin(); | |
| 293 | |
| 294 ASSERT_FALSE(it == gen.end()); | |
| 295 EXPECT_STREQ("cat", it->value().c_str()); | |
| 296 | |
| 297 ASSERT_FALSE(++it == gen.end()); | |
| 298 EXPECT_STREQ("catdog", it->value().c_str()); | |
| 299 | |
| 300 EXPECT_TRUE(++it == gen.end()); | |
| 301 } | |
| 302 | |
| 303 class IntWrapper { | |
| 304 public: | |
| 305 explicit IntWrapper(int a_value) : value_(a_value) {} | |
| 306 IntWrapper(const IntWrapper& other) : value_(other.value_) {} | |
| 307 | |
| 308 IntWrapper operator=(const IntWrapper& other) { | |
| 309 value_ = other.value_; | |
| 310 return *this; | |
| 311 } | |
| 312 // operator+() adds a different type. | |
| 313 IntWrapper operator+(int other) const { return IntWrapper(value_ + other); } | |
| 314 bool operator<(const IntWrapper& other) const { | |
| 315 return value_ < other.value_; | |
| 316 } | |
| 317 int value() const { return value_; } | |
| 318 | |
| 319 private: | |
| 320 int value_; | |
| 321 }; | |
| 322 | |
| 323 TEST(RangeTest, WorksWithACustomTypeWithDifferentIncrementType) { | |
| 324 const ParamGenerator<IntWrapper> gen = Range(IntWrapper(0), IntWrapper(2)); | |
| 325 ParamGenerator<IntWrapper>::iterator it = gen.begin(); | |
| 326 | |
| 327 ASSERT_FALSE(it == gen.end()); | |
| 328 EXPECT_EQ(0, it->value()); | |
| 329 | |
| 330 ASSERT_FALSE(++it == gen.end()); | |
| 331 EXPECT_EQ(1, it->value()); | |
| 332 | |
| 333 EXPECT_TRUE(++it == gen.end()); | |
| 334 } | |
| 335 | |
| 336 // Tests that ValuesIn() with an array parameter generates | |
| 337 // the expected sequence. | |
| 338 TEST(ValuesInTest, ValuesInArray) { | |
| 339 int array[] = {3, 5, 8}; | |
| 340 const ParamGenerator<int> gen = ValuesIn(array); | |
| 341 VerifyGenerator(gen, array); | |
| 342 } | |
| 343 | |
| 344 // Tests that ValuesIn() with a const array parameter generates | |
| 345 // the expected sequence. | |
| 346 TEST(ValuesInTest, ValuesInConstArray) { | |
| 347 const int array[] = {3, 5, 8}; | |
| 348 const ParamGenerator<int> gen = ValuesIn(array); | |
| 349 VerifyGenerator(gen, array); | |
| 350 } | |
| 351 | |
| 352 // Edge case. Tests that ValuesIn() with an array parameter containing a | |
| 353 // single element generates the single element sequence. | |
| 354 TEST(ValuesInTest, ValuesInSingleElementArray) { | |
| 355 int array[] = {42}; | |
| 356 const ParamGenerator<int> gen = ValuesIn(array); | |
| 357 VerifyGenerator(gen, array); | |
| 358 } | |
| 359 | |
| 360 // Tests that ValuesIn() generates the expected sequence for an STL | |
| 361 // container (vector). | |
| 362 TEST(ValuesInTest, ValuesInVector) { | |
| 363 typedef ::std::vector<int> ContainerType; | |
| 364 ContainerType values; | |
| 365 values.push_back(3); | |
| 366 values.push_back(5); | |
| 367 values.push_back(8); | |
| 368 const ParamGenerator<int> gen = ValuesIn(values); | |
| 369 | |
| 370 const int expected_values[] = {3, 5, 8}; | |
| 371 VerifyGenerator(gen, expected_values); | |
| 372 } | |
| 373 | |
| 374 // Tests that ValuesIn() generates the expected sequence. | |
| 375 TEST(ValuesInTest, ValuesInIteratorRange) { | |
| 376 typedef ::std::vector<int> ContainerType; | |
| 377 ContainerType values; | |
| 378 values.push_back(3); | |
| 379 values.push_back(5); | |
| 380 values.push_back(8); | |
| 381 const ParamGenerator<int> gen = ValuesIn(values.begin(), values.end()); | |
| 382 | |
| 383 const int expected_values[] = {3, 5, 8}; | |
| 384 VerifyGenerator(gen, expected_values); | |
| 385 } | |
| 386 | |
| 387 // Edge case. Tests that ValuesIn() provided with an iterator range specifying a | |
| 388 // single value generates a single-element sequence. | |
| 389 TEST(ValuesInTest, ValuesInSingleElementIteratorRange) { | |
| 390 typedef ::std::vector<int> ContainerType; | |
| 391 ContainerType values; | |
| 392 values.push_back(42); | |
| 393 const ParamGenerator<int> gen = ValuesIn(values.begin(), values.end()); | |
| 394 | |
| 395 const int expected_values[] = {42}; | |
| 396 VerifyGenerator(gen, expected_values); | |
| 397 } | |
| 398 | |
| 399 // Edge case. Tests that ValuesIn() provided with an empty iterator range | |
| 400 // generates an empty sequence. | |
| 401 TEST(ValuesInTest, ValuesInEmptyIteratorRange) { | |
| 402 typedef ::std::vector<int> ContainerType; | |
| 403 ContainerType values; | |
| 404 const ParamGenerator<int> gen = ValuesIn(values.begin(), values.end()); | |
| 405 | |
| 406 VerifyGeneratorIsEmpty(gen); | |
| 407 } | |
| 408 | |
| 409 // Tests that the Values() generates the expected sequence. | |
| 410 TEST(ValuesTest, ValuesWorks) { | |
| 411 const ParamGenerator<int> gen = Values(3, 5, 8); | |
| 412 | |
| 413 const int expected_values[] = {3, 5, 8}; | |
| 414 VerifyGenerator(gen, expected_values); | |
| 415 } | |
| 416 | |
| 417 // Tests that Values() generates the expected sequences from elements of | |
| 418 // different types convertible to ParamGenerator's parameter type. | |
| 419 TEST(ValuesTest, ValuesWorksForValuesOfCompatibleTypes) { | |
| 420 const ParamGenerator<double> gen = Values(3, 5.0f, 8.0); | |
| 421 | |
| 422 const double expected_values[] = {3.0, 5.0, 8.0}; | |
| 423 VerifyGenerator(gen, expected_values); | |
| 424 } | |
| 425 | |
| 426 TEST(ValuesTest, ValuesWorksForMaxLengthList) { | |
| 427 const ParamGenerator<int> gen = Values( | |
| 428 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, | |
| 429 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, | |
| 430 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, | |
| 431 310, 320, 330, 340, 350, 360, 370, 380, 390, 400, | |
| 432 410, 420, 430, 440, 450, 460, 470, 480, 490, 500); | |
| 433 | |
| 434 const int expected_values[] = { | |
| 435 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, | |
| 436 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, | |
| 437 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, | |
| 438 310, 320, 330, 340, 350, 360, 370, 380, 390, 400, | |
| 439 410, 420, 430, 440, 450, 460, 470, 480, 490, 500}; | |
| 440 VerifyGenerator(gen, expected_values); | |
| 441 } | |
| 442 | |
| 443 // Edge case test. Tests that single-parameter Values() generates the sequence | |
| 444 // with the single value. | |
| 445 TEST(ValuesTest, ValuesWithSingleParameter) { | |
| 446 const ParamGenerator<int> gen = Values(42); | |
| 447 | |
| 448 const int expected_values[] = {42}; | |
| 449 VerifyGenerator(gen, expected_values); | |
| 450 } | |
| 451 | |
| 452 // Tests that Bool() generates sequence (false, true). | |
| 453 TEST(BoolTest, BoolWorks) { | |
| 454 const ParamGenerator<bool> gen = Bool(); | |
| 455 | |
| 456 const bool expected_values[] = {false, true}; | |
| 457 VerifyGenerator(gen, expected_values); | |
| 458 } | |
| 459 | |
| 460 # if GTEST_HAS_COMBINE | |
| 461 | |
| 462 // Tests that Combine() with two parameters generates the expected sequence. | |
| 463 TEST(CombineTest, CombineWithTwoParameters) { | |
| 464 const char* foo = "foo"; | |
| 465 const char* bar = "bar"; | |
| 466 const ParamGenerator<tuple<const char*, int> > gen = | |
| 467 Combine(Values(foo, bar), Values(3, 4)); | |
| 468 | |
| 469 tuple<const char*, int> expected_values[] = { | |
| 470 make_tuple(foo, 3), make_tuple(foo, 4), | |
| 471 make_tuple(bar, 3), make_tuple(bar, 4)}; | |
| 472 VerifyGenerator(gen, expected_values); | |
| 473 } | |
| 474 | |
| 475 // Tests that Combine() with three parameters generates the expected sequence. | |
| 476 TEST(CombineTest, CombineWithThreeParameters) { | |
| 477 const ParamGenerator<tuple<int, int, int> > gen = Combine(Values(0, 1), | |
| 478 Values(3, 4), | |
| 479 Values(5, 6)); | |
| 480 tuple<int, int, int> expected_values[] = { | |
| 481 make_tuple(0, 3, 5), make_tuple(0, 3, 6), | |
| 482 make_tuple(0, 4, 5), make_tuple(0, 4, 6), | |
| 483 make_tuple(1, 3, 5), make_tuple(1, 3, 6), | |
| 484 make_tuple(1, 4, 5), make_tuple(1, 4, 6)}; | |
| 485 VerifyGenerator(gen, expected_values); | |
| 486 } | |
| 487 | |
| 488 // Tests that the Combine() with the first parameter generating a single value | |
| 489 // sequence generates a sequence with the number of elements equal to the | |
| 490 // number of elements in the sequence generated by the second parameter. | |
| 491 TEST(CombineTest, CombineWithFirstParameterSingleValue) { | |
| 492 const ParamGenerator<tuple<int, int> > gen = Combine(Values(42), | |
| 493 Values(0, 1)); | |
| 494 | |
| 495 tuple<int, int> expected_values[] = {make_tuple(42, 0), make_tuple(42, 1)}; | |
| 496 VerifyGenerator(gen, expected_values); | |
| 497 } | |
| 498 | |
| 499 // Tests that the Combine() with the second parameter generating a single value | |
| 500 // sequence generates a sequence with the number of elements equal to the | |
| 501 // number of elements in the sequence generated by the first parameter. | |
| 502 TEST(CombineTest, CombineWithSecondParameterSingleValue) { | |
| 503 const ParamGenerator<tuple<int, int> > gen = Combine(Values(0, 1), | |
| 504 Values(42)); | |
| 505 | |
| 506 tuple<int, int> expected_values[] = {make_tuple(0, 42), make_tuple(1, 42)}; | |
| 507 VerifyGenerator(gen, expected_values); | |
| 508 } | |
| 509 | |
| 510 // Tests that when the first parameter produces an empty sequence, | |
| 511 // Combine() produces an empty sequence, too. | |
| 512 TEST(CombineTest, CombineWithFirstParameterEmptyRange) { | |
| 513 const ParamGenerator<tuple<int, int> > gen = Combine(Range(0, 0), | |
| 514 Values(0, 1)); | |
| 515 VerifyGeneratorIsEmpty(gen); | |
| 516 } | |
| 517 | |
| 518 // Tests that when the second parameter produces an empty sequence, | |
| 519 // Combine() produces an empty sequence, too. | |
| 520 TEST(CombineTest, CombineWithSecondParameterEmptyRange) { | |
| 521 const ParamGenerator<tuple<int, int> > gen = Combine(Values(0, 1), | |
| 522 Range(1, 1)); | |
| 523 VerifyGeneratorIsEmpty(gen); | |
| 524 } | |
| 525 | |
| 526 // Edge case. Tests that combine works with the maximum number | |
| 527 // of parameters supported by Google Test (currently 10). | |
| 528 TEST(CombineTest, CombineWithMaxNumberOfParameters) { | |
| 529 const char* foo = "foo"; | |
| 530 const char* bar = "bar"; | |
| 531 const ParamGenerator<tuple<const char*, int, int, int, int, int, int, int, | |
| 532 int, int> > gen = Combine(Values(foo, bar), | |
| 533 Values(1), Values(2), | |
| 534 Values(3), Values(4), | |
| 535 Values(5), Values(6), | |
| 536 Values(7), Values(8), | |
| 537 Values(9)); | |
| 538 | |
| 539 tuple<const char*, int, int, int, int, int, int, int, int, int> | |
| 540 expected_values[] = {make_tuple(foo, 1, 2, 3, 4, 5, 6, 7, 8, 9), | |
| 541 make_tuple(bar, 1, 2, 3, 4, 5, 6, 7, 8, 9)}; | |
| 542 VerifyGenerator(gen, expected_values); | |
| 543 } | |
| 544 | |
| 545 # endif // GTEST_HAS_COMBINE | |
| 546 | |
| 547 // Tests that an generator produces correct sequence after being | |
| 548 // assigned from another generator. | |
| 549 TEST(ParamGeneratorTest, AssignmentWorks) { | |
| 550 ParamGenerator<int> gen = Values(1, 2); | |
| 551 const ParamGenerator<int> gen2 = Values(3, 4); | |
| 552 gen = gen2; | |
| 553 | |
| 554 const int expected_values[] = {3, 4}; | |
| 555 VerifyGenerator(gen, expected_values); | |
| 556 } | |
| 557 | |
| 558 // This test verifies that the tests are expanded and run as specified: | |
| 559 // one test per element from the sequence produced by the generator | |
| 560 // specified in INSTANTIATE_TEST_CASE_P. It also verifies that the test's | |
| 561 // fixture constructor, SetUp(), and TearDown() have run and have been | |
| 562 // supplied with the correct parameters. | |
| 563 | |
| 564 // The use of environment object allows detection of the case where no test | |
| 565 // case functionality is run at all. In this case TestCaseTearDown will not | |
| 566 // be able to detect missing tests, naturally. | |
| 567 template <int kExpectedCalls> | |
| 568 class TestGenerationEnvironment : public ::testing::Environment { | |
| 569 public: | |
| 570 static TestGenerationEnvironment* Instance() { | |
| 571 static TestGenerationEnvironment* instance = new TestGenerationEnvironment; | |
| 572 return instance; | |
| 573 } | |
| 574 | |
| 575 void FixtureConstructorExecuted() { fixture_constructor_count_++; } | |
| 576 void SetUpExecuted() { set_up_count_++; } | |
| 577 void TearDownExecuted() { tear_down_count_++; } | |
| 578 void TestBodyExecuted() { test_body_count_++; } | |
| 579 | |
| 580 virtual void TearDown() { | |
| 581 // If all MultipleTestGenerationTest tests have been de-selected | |
| 582 // by the filter flag, the following checks make no sense. | |
| 583 bool perform_check = false; | |
| 584 | |
| 585 for (int i = 0; i < kExpectedCalls; ++i) { | |
| 586 Message msg; | |
| 587 msg << "TestsExpandedAndRun/" << i; | |
| 588 if (UnitTestOptions::FilterMatchesTest( | |
| 589 "TestExpansionModule/MultipleTestGenerationTest", | |
| 590 msg.GetString().c_str())) { | |
| 591 perform_check = true; | |
| 592 } | |
| 593 } | |
| 594 if (perform_check) { | |
| 595 EXPECT_EQ(kExpectedCalls, fixture_constructor_count_) | |
| 596 << "Fixture constructor of ParamTestGenerationTest test case " | |
| 597 << "has not been run as expected."; | |
| 598 EXPECT_EQ(kExpectedCalls, set_up_count_) | |
| 599 << "Fixture SetUp method of ParamTestGenerationTest test case " | |
| 600 << "has not been run as expected."; | |
| 601 EXPECT_EQ(kExpectedCalls, tear_down_count_) | |
| 602 << "Fixture TearDown method of ParamTestGenerationTest test case " | |
| 603 << "has not been run as expected."; | |
| 604 EXPECT_EQ(kExpectedCalls, test_body_count_) | |
| 605 << "Test in ParamTestGenerationTest test case " | |
| 606 << "has not been run as expected."; | |
| 607 } | |
| 608 } | |
| 609 private: | |
| 610 TestGenerationEnvironment() : fixture_constructor_count_(0), set_up_count_(0), | |
| 611 tear_down_count_(0), test_body_count_(0) {} | |
| 612 | |
| 613 int fixture_constructor_count_; | |
| 614 int set_up_count_; | |
| 615 int tear_down_count_; | |
| 616 int test_body_count_; | |
| 617 | |
| 618 GTEST_DISALLOW_COPY_AND_ASSIGN_(TestGenerationEnvironment); | |
| 619 }; | |
| 620 | |
| 621 const int test_generation_params[] = {36, 42, 72}; | |
| 622 | |
| 623 class TestGenerationTest : public TestWithParam<int> { | |
| 624 public: | |
| 625 enum { | |
| 626 PARAMETER_COUNT = | |
| 627 sizeof(test_generation_params)/sizeof(test_generation_params[0]) | |
| 628 }; | |
| 629 | |
| 630 typedef TestGenerationEnvironment<PARAMETER_COUNT> Environment; | |
| 631 | |
| 632 TestGenerationTest() { | |
| 633 Environment::Instance()->FixtureConstructorExecuted(); | |
| 634 current_parameter_ = GetParam(); | |
| 635 } | |
| 636 virtual void SetUp() { | |
| 637 Environment::Instance()->SetUpExecuted(); | |
| 638 EXPECT_EQ(current_parameter_, GetParam()); | |
| 639 } | |
| 640 virtual void TearDown() { | |
| 641 Environment::Instance()->TearDownExecuted(); | |
| 642 EXPECT_EQ(current_parameter_, GetParam()); | |
| 643 } | |
| 644 | |
| 645 static void SetUpTestCase() { | |
| 646 bool all_tests_in_test_case_selected = true; | |
| 647 | |
| 648 for (int i = 0; i < PARAMETER_COUNT; ++i) { | |
| 649 Message test_name; | |
| 650 test_name << "TestsExpandedAndRun/" << i; | |
| 651 if ( !UnitTestOptions::FilterMatchesTest( | |
| 652 "TestExpansionModule/MultipleTestGenerationTest", | |
| 653 test_name.GetString())) { | |
| 654 all_tests_in_test_case_selected = false; | |
| 655 } | |
| 656 } | |
| 657 EXPECT_TRUE(all_tests_in_test_case_selected) | |
| 658 << "When running the TestGenerationTest test case all of its tests\n" | |
| 659 << "must be selected by the filter flag for the test case to pass.\n" | |
| 660 << "If not all of them are enabled, we can't reliably conclude\n" | |
| 661 << "that the correct number of tests have been generated."; | |
| 662 | |
| 663 collected_parameters_.clear(); | |
| 664 } | |
| 665 | |
| 666 static void TearDownTestCase() { | |
| 667 vector<int> expected_values(test_generation_params, | |
| 668 test_generation_params + PARAMETER_COUNT); | |
| 669 // Test execution order is not guaranteed by Google Test, | |
| 670 // so the order of values in collected_parameters_ can be | |
| 671 // different and we have to sort to compare. | |
| 672 sort(expected_values.begin(), expected_values.end()); | |
| 673 sort(collected_parameters_.begin(), collected_parameters_.end()); | |
| 674 | |
| 675 EXPECT_TRUE(collected_parameters_ == expected_values); | |
| 676 } | |
| 677 protected: | |
| 678 int current_parameter_; | |
| 679 static vector<int> collected_parameters_; | |
| 680 | |
| 681 private: | |
| 682 GTEST_DISALLOW_COPY_AND_ASSIGN_(TestGenerationTest); | |
| 683 }; | |
| 684 vector<int> TestGenerationTest::collected_parameters_; | |
| 685 | |
| 686 TEST_P(TestGenerationTest, TestsExpandedAndRun) { | |
| 687 Environment::Instance()->TestBodyExecuted(); | |
| 688 EXPECT_EQ(current_parameter_, GetParam()); | |
| 689 collected_parameters_.push_back(GetParam()); | |
| 690 } | |
| 691 INSTANTIATE_TEST_CASE_P(TestExpansionModule, TestGenerationTest, | |
| 692 ValuesIn(test_generation_params)); | |
| 693 | |
| 694 // This test verifies that the element sequence (third parameter of | |
| 695 // INSTANTIATE_TEST_CASE_P) is evaluated in InitGoogleTest() and neither at | |
| 696 // the call site of INSTANTIATE_TEST_CASE_P nor in RUN_ALL_TESTS(). For | |
| 697 // that, we declare param_value_ to be a static member of | |
| 698 // GeneratorEvaluationTest and initialize it to 0. We set it to 1 in | |
| 699 // main(), just before invocation of InitGoogleTest(). After calling | |
| 700 // InitGoogleTest(), we set the value to 2. If the sequence is evaluated | |
| 701 // before or after InitGoogleTest, INSTANTIATE_TEST_CASE_P will create a | |
| 702 // test with parameter other than 1, and the test body will fail the | |
| 703 // assertion. | |
| 704 class GeneratorEvaluationTest : public TestWithParam<int> { | |
| 705 public: | |
| 706 static int param_value() { return param_value_; } | |
| 707 static void set_param_value(int param_value) { param_value_ = param_value; } | |
| 708 | |
| 709 private: | |
| 710 static int param_value_; | |
| 711 }; | |
| 712 int GeneratorEvaluationTest::param_value_ = 0; | |
| 713 | |
| 714 TEST_P(GeneratorEvaluationTest, GeneratorsEvaluatedInMain) { | |
| 715 EXPECT_EQ(1, GetParam()); | |
| 716 } | |
| 717 INSTANTIATE_TEST_CASE_P(GenEvalModule, | |
| 718 GeneratorEvaluationTest, | |
| 719 Values(GeneratorEvaluationTest::param_value())); | |
| 720 | |
| 721 // Tests that generators defined in a different translation unit are | |
| 722 // functional. Generator extern_gen is defined in gtest-param-test_test2.cc. | |
| 723 extern ParamGenerator<int> extern_gen; | |
| 724 class ExternalGeneratorTest : public TestWithParam<int> {}; | |
| 725 TEST_P(ExternalGeneratorTest, ExternalGenerator) { | |
| 726 // Sequence produced by extern_gen contains only a single value | |
| 727 // which we verify here. | |
| 728 EXPECT_EQ(GetParam(), 33); | |
| 729 } | |
| 730 INSTANTIATE_TEST_CASE_P(ExternalGeneratorModule, | |
| 731 ExternalGeneratorTest, | |
| 732 extern_gen); | |
| 733 | |
| 734 // Tests that a parameterized test case can be defined in one translation | |
| 735 // unit and instantiated in another. This test will be instantiated in | |
| 736 // gtest-param-test_test2.cc. ExternalInstantiationTest fixture class is | |
| 737 // defined in gtest-param-test_test.h. | |
| 738 TEST_P(ExternalInstantiationTest, IsMultipleOf33) { | |
| 739 EXPECT_EQ(0, GetParam() % 33); | |
| 740 } | |
| 741 | |
| 742 // Tests that a parameterized test case can be instantiated with multiple | |
| 743 // generators. | |
| 744 class MultipleInstantiationTest : public TestWithParam<int> {}; | |
| 745 TEST_P(MultipleInstantiationTest, AllowsMultipleInstances) { | |
| 746 } | |
| 747 INSTANTIATE_TEST_CASE_P(Sequence1, MultipleInstantiationTest, Values(1, 2)); | |
| 748 INSTANTIATE_TEST_CASE_P(Sequence2, MultipleInstantiationTest, Range(3, 5)); | |
| 749 | |
| 750 // Tests that a parameterized test case can be instantiated | |
| 751 // in multiple translation units. This test will be instantiated | |
| 752 // here and in gtest-param-test_test2.cc. | |
| 753 // InstantiationInMultipleTranslationUnitsTest fixture class | |
| 754 // is defined in gtest-param-test_test.h. | |
| 755 TEST_P(InstantiationInMultipleTranslaionUnitsTest, IsMultipleOf42) { | |
| 756 EXPECT_EQ(0, GetParam() % 42); | |
| 757 } | |
| 758 INSTANTIATE_TEST_CASE_P(Sequence1, | |
| 759 InstantiationInMultipleTranslaionUnitsTest, | |
| 760 Values(42, 42*2)); | |
| 761 | |
| 762 // Tests that each iteration of parameterized test runs in a separate test | |
| 763 // object. | |
| 764 class SeparateInstanceTest : public TestWithParam<int> { | |
| 765 public: | |
| 766 SeparateInstanceTest() : count_(0) {} | |
| 767 | |
| 768 static void TearDownTestCase() { | |
| 769 EXPECT_GE(global_count_, 2) | |
| 770 << "If some (but not all) SeparateInstanceTest tests have been " | |
| 771 << "filtered out this test will fail. Make sure that all " | |
| 772 << "GeneratorEvaluationTest are selected or de-selected together " | |
| 773 << "by the test filter."; | |
| 774 } | |
| 775 | |
| 776 protected: | |
| 777 int count_; | |
| 778 static int global_count_; | |
| 779 }; | |
| 780 int SeparateInstanceTest::global_count_ = 0; | |
| 781 | |
| 782 TEST_P(SeparateInstanceTest, TestsRunInSeparateInstances) { | |
| 783 EXPECT_EQ(0, count_++); | |
| 784 global_count_++; | |
| 785 } | |
| 786 INSTANTIATE_TEST_CASE_P(FourElemSequence, SeparateInstanceTest, Range(1, 4)); | |
| 787 | |
| 788 // Tests that all instantiations of a test have named appropriately. Test | |
| 789 // defined with TEST_P(TestCaseName, TestName) and instantiated with | |
| 790 // INSTANTIATE_TEST_CASE_P(SequenceName, TestCaseName, generator) must be named | |
| 791 // SequenceName/TestCaseName.TestName/i, where i is the 0-based index of the | |
| 792 // sequence element used to instantiate the test. | |
| 793 class NamingTest : public TestWithParam<int> {}; | |
| 794 | |
| 795 TEST_P(NamingTest, TestsReportCorrectNamesAndParameters) { | |
| 796 const ::testing::TestInfo* const test_info = | |
| 797 ::testing::UnitTest::GetInstance()->current_test_info(); | |
| 798 | |
| 799 EXPECT_STREQ("ZeroToFiveSequence/NamingTest", test_info->test_case_name()); | |
| 800 | |
| 801 Message index_stream; | |
| 802 index_stream << "TestsReportCorrectNamesAndParameters/" << GetParam(); | |
| 803 EXPECT_STREQ(index_stream.GetString().c_str(), test_info->name()); | |
| 804 | |
| 805 EXPECT_EQ(::testing::PrintToString(GetParam()), test_info->value_param()); | |
| 806 } | |
| 807 | |
| 808 INSTANTIATE_TEST_CASE_P(ZeroToFiveSequence, NamingTest, Range(0, 5)); | |
| 809 | |
| 810 // Class that cannot be streamed into an ostream. It needs to be copyable | |
| 811 // (and, in case of MSVC, also assignable) in order to be a test parameter | |
| 812 // type. Its default copy constructor and assignment operator do exactly | |
| 813 // what we need. | |
| 814 class Unstreamable { | |
| 815 public: | |
| 816 explicit Unstreamable(int value) : value_(value) {} | |
| 817 | |
| 818 private: | |
| 819 int value_; | |
| 820 }; | |
| 821 | |
| 822 class CommentTest : public TestWithParam<Unstreamable> {}; | |
| 823 | |
| 824 TEST_P(CommentTest, TestsCorrectlyReportUnstreamableParams) { | |
| 825 const ::testing::TestInfo* const test_info = | |
| 826 ::testing::UnitTest::GetInstance()->current_test_info(); | |
| 827 | |
| 828 EXPECT_EQ(::testing::PrintToString(GetParam()), test_info->value_param()); | |
| 829 } | |
| 830 | |
| 831 INSTANTIATE_TEST_CASE_P(InstantiationWithComments, | |
| 832 CommentTest, | |
| 833 Values(Unstreamable(1))); | |
| 834 | |
| 835 // Verify that we can create a hierarchy of test fixtures, where the base | |
| 836 // class fixture is not parameterized and the derived class is. In this case | |
| 837 // ParameterizedDerivedTest inherits from NonParameterizedBaseTest. We | |
| 838 // perform simple tests on both. | |
| 839 class NonParameterizedBaseTest : public ::testing::Test { | |
| 840 public: | |
| 841 NonParameterizedBaseTest() : n_(17) { } | |
| 842 protected: | |
| 843 int n_; | |
| 844 }; | |
| 845 | |
| 846 class ParameterizedDerivedTest : public NonParameterizedBaseTest, | |
| 847 public ::testing::WithParamInterface<int> { | |
| 848 protected: | |
| 849 ParameterizedDerivedTest() : count_(0) { } | |
| 850 int count_; | |
| 851 static int global_count_; | |
| 852 }; | |
| 853 | |
| 854 int ParameterizedDerivedTest::global_count_ = 0; | |
| 855 | |
| 856 TEST_F(NonParameterizedBaseTest, FixtureIsInitialized) { | |
| 857 EXPECT_EQ(17, n_); | |
| 858 } | |
| 859 | |
| 860 TEST_P(ParameterizedDerivedTest, SeesSequence) { | |
| 861 EXPECT_EQ(17, n_); | |
| 862 EXPECT_EQ(0, count_++); | |
| 863 EXPECT_EQ(GetParam(), global_count_++); | |
| 864 } | |
| 865 | |
| 866 INSTANTIATE_TEST_CASE_P(RangeZeroToFive, ParameterizedDerivedTest, Range(0, 5)); | |
| 867 | |
| 868 #endif // GTEST_HAS_PARAM_TEST | |
| 869 | |
| 870 TEST(CompileTest, CombineIsDefinedOnlyWhenGtestHasParamTestIsDefined) { | |
| 871 #if GTEST_HAS_COMBINE && !GTEST_HAS_PARAM_TEST | |
| 872 FAIL() << "GTEST_HAS_COMBINE is defined while GTEST_HAS_PARAM_TEST is not\n" | |
| 873 #endif | |
| 874 } | |
| 875 | |
| 876 int main(int argc, char **argv) { | |
| 877 #if GTEST_HAS_PARAM_TEST | |
| 878 // Used in TestGenerationTest test case. | |
| 879 AddGlobalTestEnvironment(TestGenerationTest::Environment::Instance()); | |
| 880 // Used in GeneratorEvaluationTest test case. Tests that the updated value | |
| 881 // will be picked up for instantiating tests in GeneratorEvaluationTest. | |
| 882 GeneratorEvaluationTest::set_param_value(1); | |
| 883 #endif // GTEST_HAS_PARAM_TEST | |
| 884 | |
| 885 ::testing::InitGoogleTest(&argc, argv); | |
| 886 | |
| 887 #if GTEST_HAS_PARAM_TEST | |
| 888 // Used in GeneratorEvaluationTest test case. Tests that value updated | |
| 889 // here will NOT be used for instantiating tests in | |
| 890 // GeneratorEvaluationTest. | |
| 891 GeneratorEvaluationTest::set_param_value(2); | |
| 892 #endif // GTEST_HAS_PARAM_TEST | |
| 893 | |
| 894 return RUN_ALL_TESTS(); | |
| 895 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 47873006:
libvpx: Pull from upstream (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/libvpx/