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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 ::testing::get; | |
68 | using ::testing::make_tuple; | |
69 | using ::testing::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 std::string& value() const { return value_; } | |
284 | ||
285 | private: | |
286 | std::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 | ||
610 | private: | |
611 | TestGenerationEnvironment() : fixture_constructor_count_(0), set_up_count_(0), | |
612 | tear_down_count_(0), test_body_count_(0) {} | |
613 | ||
614 | int fixture_constructor_count_; | |
615 | int set_up_count_; | |
616 | int tear_down_count_; | |
617 | int test_body_count_; | |
618 | ||
619 | GTEST_DISALLOW_COPY_AND_ASSIGN_(TestGenerationEnvironment); | |
620 | }; | |
621 | ||
622 | const int test_generation_params[] = {36, 42, 72}; | |
623 | ||
624 | class TestGenerationTest : public TestWithParam<int> { | |
625 | public: | |
626 | enum { | |
627 | PARAMETER_COUNT = | |
628 | sizeof(test_generation_params)/sizeof(test_generation_params[0]) | |
629 | }; | |
630 | ||
631 | typedef TestGenerationEnvironment<PARAMETER_COUNT> Environment; | |
632 | ||
633 | TestGenerationTest() { | |
634 | Environment::Instance()->FixtureConstructorExecuted(); | |
635 | current_parameter_ = GetParam(); | |
636 | } | |
637 | virtual void SetUp() { | |
638 | Environment::Instance()->SetUpExecuted(); | |
639 | EXPECT_EQ(current_parameter_, GetParam()); | |
640 | } | |
641 | virtual void TearDown() { | |
642 | Environment::Instance()->TearDownExecuted(); | |
643 | EXPECT_EQ(current_parameter_, GetParam()); | |
644 | } | |
645 | ||
646 | static void SetUpTestCase() { | |
647 | bool all_tests_in_test_case_selected = true; | |
648 | ||
649 | for (int i = 0; i < PARAMETER_COUNT; ++i) { | |
650 | Message test_name; | |
651 | test_name << "TestsExpandedAndRun/" << i; | |
652 | if ( !UnitTestOptions::FilterMatchesTest( | |
653 | "TestExpansionModule/MultipleTestGenerationTest", | |
654 | test_name.GetString())) { | |
655 | all_tests_in_test_case_selected = false; | |
656 | } | |
657 | } | |
658 | EXPECT_TRUE(all_tests_in_test_case_selected) | |
659 | << "When running the TestGenerationTest test case all of its tests\n" | |
660 | << "must be selected by the filter flag for the test case to pass.\n" | |
661 | << "If not all of them are enabled, we can't reliably conclude\n" | |
662 | << "that the correct number of tests have been generated."; | |
663 | ||
664 | collected_parameters_.clear(); | |
665 | } | |
666 | ||
667 | static void TearDownTestCase() { | |
668 | vector<int> expected_values(test_generation_params, | |
669 | test_generation_params + PARAMETER_COUNT); | |
670 | // Test execution order is not guaranteed by Google Test, | |
671 | // so the order of values in collected_parameters_ can be | |
672 | // different and we have to sort to compare. | |
673 | sort(expected_values.begin(), expected_values.end()); | |
674 | sort(collected_parameters_.begin(), collected_parameters_.end()); | |
675 | ||
676 | EXPECT_TRUE(collected_parameters_ == expected_values); | |
677 | } | |
678 | ||
679 | protected: | |
680 | int current_parameter_; | |
681 | static vector<int> collected_parameters_; | |
682 | ||
683 | private: | |
684 | GTEST_DISALLOW_COPY_AND_ASSIGN_(TestGenerationTest); | |
685 | }; | |
686 | vector<int> TestGenerationTest::collected_parameters_; | |
687 | ||
688 | TEST_P(TestGenerationTest, TestsExpandedAndRun) { | |
689 | Environment::Instance()->TestBodyExecuted(); | |
690 | EXPECT_EQ(current_parameter_, GetParam()); | |
691 | collected_parameters_.push_back(GetParam()); | |
692 | } | |
693 | INSTANTIATE_TEST_CASE_P(TestExpansionModule, TestGenerationTest, | |
694 | ValuesIn(test_generation_params)); | |
695 | ||
696 | // This test verifies that the element sequence (third parameter of | |
697 | // INSTANTIATE_TEST_CASE_P) is evaluated in InitGoogleTest() and neither at | |
698 | // the call site of INSTANTIATE_TEST_CASE_P nor in RUN_ALL_TESTS(). For | |
699 | // that, we declare param_value_ to be a static member of | |
700 | // GeneratorEvaluationTest and initialize it to 0. We set it to 1 in | |
701 | // main(), just before invocation of InitGoogleTest(). After calling | |
702 | // InitGoogleTest(), we set the value to 2. If the sequence is evaluated | |
703 | // before or after InitGoogleTest, INSTANTIATE_TEST_CASE_P will create a | |
704 | // test with parameter other than 1, and the test body will fail the | |
705 | // assertion. | |
706 | class GeneratorEvaluationTest : public TestWithParam<int> { | |
707 | public: | |
708 | static int param_value() { return param_value_; } | |
709 | static void set_param_value(int param_value) { param_value_ = param_value; } | |
710 | ||
711 | private: | |
712 | static int param_value_; | |
713 | }; | |
714 | int GeneratorEvaluationTest::param_value_ = 0; | |
715 | ||
716 | TEST_P(GeneratorEvaluationTest, GeneratorsEvaluatedInMain) { | |
717 | EXPECT_EQ(1, GetParam()); | |
718 | } | |
719 | INSTANTIATE_TEST_CASE_P(GenEvalModule, | |
720 | GeneratorEvaluationTest, | |
721 | Values(GeneratorEvaluationTest::param_value())); | |
722 | ||
723 | // Tests that generators defined in a different translation unit are | |
724 | // functional. Generator extern_gen is defined in gtest-param-test_test2.cc. | |
725 | extern ParamGenerator<int> extern_gen; | |
726 | class ExternalGeneratorTest : public TestWithParam<int> {}; | |
727 | TEST_P(ExternalGeneratorTest, ExternalGenerator) { | |
728 | // Sequence produced by extern_gen contains only a single value | |
729 | // which we verify here. | |
730 | EXPECT_EQ(GetParam(), 33); | |
731 | } | |
732 | INSTANTIATE_TEST_CASE_P(ExternalGeneratorModule, | |
733 | ExternalGeneratorTest, | |
734 | extern_gen); | |
735 | ||
736 | // Tests that a parameterized test case can be defined in one translation | |
737 | // unit and instantiated in another. This test will be instantiated in | |
738 | // gtest-param-test_test2.cc. ExternalInstantiationTest fixture class is | |
739 | // defined in gtest-param-test_test.h. | |
740 | TEST_P(ExternalInstantiationTest, IsMultipleOf33) { | |
741 | EXPECT_EQ(0, GetParam() % 33); | |
742 | } | |
743 | ||
744 | // Tests that a parameterized test case can be instantiated with multiple | |
745 | // generators. | |
746 | class MultipleInstantiationTest : public TestWithParam<int> {}; | |
747 | TEST_P(MultipleInstantiationTest, AllowsMultipleInstances) { | |
748 | } | |
749 | INSTANTIATE_TEST_CASE_P(Sequence1, MultipleInstantiationTest, Values(1, 2)); | |
750 | INSTANTIATE_TEST_CASE_P(Sequence2, MultipleInstantiationTest, Range(3, 5)); | |
751 | ||
752 | // Tests that a parameterized test case can be instantiated | |
753 | // in multiple translation units. This test will be instantiated | |
754 | // here and in gtest-param-test_test2.cc. | |
755 | // InstantiationInMultipleTranslationUnitsTest fixture class | |
756 | // is defined in gtest-param-test_test.h. | |
757 | TEST_P(InstantiationInMultipleTranslaionUnitsTest, IsMultipleOf42) { | |
758 | EXPECT_EQ(0, GetParam() % 42); | |
759 | } | |
760 | INSTANTIATE_TEST_CASE_P(Sequence1, | |
761 | InstantiationInMultipleTranslaionUnitsTest, | |
762 | Values(42, 42*2)); | |
763 | ||
764 | // Tests that each iteration of parameterized test runs in a separate test | |
765 | // object. | |
766 | class SeparateInstanceTest : public TestWithParam<int> { | |
767 | public: | |
768 | SeparateInstanceTest() : count_(0) {} | |
769 | ||
770 | static void TearDownTestCase() { | |
771 | EXPECT_GE(global_count_, 2) | |
772 | << "If some (but not all) SeparateInstanceTest tests have been " | |
773 | << "filtered out this test will fail. Make sure that all " | |
774 | << "GeneratorEvaluationTest are selected or de-selected together " | |
775 | << "by the test filter."; | |
776 | } | |
777 | ||
778 | protected: | |
779 | int count_; | |
780 | static int global_count_; | |
781 | }; | |
782 | int SeparateInstanceTest::global_count_ = 0; | |
783 | ||
784 | TEST_P(SeparateInstanceTest, TestsRunInSeparateInstances) { | |
785 | EXPECT_EQ(0, count_++); | |
786 | global_count_++; | |
787 | } | |
788 | INSTANTIATE_TEST_CASE_P(FourElemSequence, SeparateInstanceTest, Range(1, 4)); | |
789 | ||
790 | // Tests that all instantiations of a test have named appropriately. Test | |
791 | // defined with TEST_P(TestCaseName, TestName) and instantiated with | |
792 | // INSTANTIATE_TEST_CASE_P(SequenceName, TestCaseName, generator) must be named | |
793 | // SequenceName/TestCaseName.TestName/i, where i is the 0-based index of the | |
794 | // sequence element used to instantiate the test. | |
795 | class NamingTest : public TestWithParam<int> {}; | |
796 | ||
797 | TEST_P(NamingTest, TestsReportCorrectNamesAndParameters) { | |
798 | const ::testing::TestInfo* const test_info = | |
799 | ::testing::UnitTest::GetInstance()->current_test_info(); | |
800 | ||
801 | EXPECT_STREQ("ZeroToFiveSequence/NamingTest", test_info->test_case_name()); | |
802 | ||
803 | Message index_stream; | |
804 | index_stream << "TestsReportCorrectNamesAndParameters/" << GetParam(); | |
805 | EXPECT_STREQ(index_stream.GetString().c_str(), test_info->name()); | |
806 | ||
807 | EXPECT_EQ(::testing::PrintToString(GetParam()), test_info->value_param()); | |
808 | } | |
809 | ||
810 | INSTANTIATE_TEST_CASE_P(ZeroToFiveSequence, NamingTest, Range(0, 5)); | |
811 | ||
812 | // Tests that user supplied custom parameter names are working correctly. | |
813 | // Runs the test with a builtin helper method which uses PrintToString, | |
814 | // as well as a custom function and custom functor to ensure all possible | |
815 | // uses work correctly. | |
816 | class CustomFunctorNamingTest : public TestWithParam<std::string> {}; | |
817 | TEST_P(CustomFunctorNamingTest, CustomTestNames) {} | |
818 | ||
819 | struct CustomParamNameFunctor { | |
820 | std::string operator()(const ::testing::TestParamInfo<std::string>& info) { | |
821 | return info.param; | |
822 | } | |
823 | }; | |
824 | ||
825 | INSTANTIATE_TEST_CASE_P(CustomParamNameFunctor, | |
826 | CustomFunctorNamingTest, | |
827 | Values(std::string("FunctorName")), | |
828 | CustomParamNameFunctor()); | |
829 | ||
830 | INSTANTIATE_TEST_CASE_P(AllAllowedCharacters, | |
831 | CustomFunctorNamingTest, | |
832 | Values("abcdefghijklmnopqrstuvwxyz", | |
833 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ", | |
834 | "01234567890_"), | |
835 | CustomParamNameFunctor()); | |
836 | ||
837 | inline std::string CustomParamNameFunction( | |
838 | const ::testing::TestParamInfo<std::string>& info) { | |
839 | return info.param; | |
840 | } | |
841 | ||
842 | class CustomFunctionNamingTest : public TestWithParam<std::string> {}; | |
843 | TEST_P(CustomFunctionNamingTest, CustomTestNames) {} | |
844 | ||
845 | INSTANTIATE_TEST_CASE_P(CustomParamNameFunction, | |
846 | CustomFunctionNamingTest, | |
847 | Values(std::string("FunctionName")), | |
848 | CustomParamNameFunction); | |
849 | ||
850 | #if GTEST_LANG_CXX11 | |
851 | ||
852 | // Test custom naming with a lambda | |
853 | ||
854 | class CustomLambdaNamingTest : public TestWithParam<std::string> {}; | |
855 | TEST_P(CustomLambdaNamingTest, CustomTestNames) {} | |
856 | ||
857 | INSTANTIATE_TEST_CASE_P(CustomParamNameLambda, | |
858 | CustomLambdaNamingTest, | |
859 | Values(std::string("LambdaName")), | |
860 | [](const ::testing::TestParamInfo<std::string>& info) { | |
861 | return info.param; | |
862 | }); | |
863 | ||
864 | #endif // GTEST_LANG_CXX11 | |
865 | ||
866 | TEST(CustomNamingTest, CheckNameRegistry) { | |
867 | ::testing::UnitTest* unit_test = ::testing::UnitTest::GetInstance(); | |
868 | std::set<std::string> test_names; | |
869 | for (int case_num = 0; | |
870 | case_num < unit_test->total_test_case_count(); | |
871 | ++case_num) { | |
872 | const ::testing::TestCase* test_case = unit_test->GetTestCase(case_num); | |
873 | for (int test_num = 0; | |
874 | test_num < test_case->total_test_count(); | |
875 | ++test_num) { | |
876 | const ::testing::TestInfo* test_info = test_case->GetTestInfo(test_num); | |
877 | test_names.insert(std::string(test_info->name())); | |
878 | } | |
879 | } | |
880 | EXPECT_EQ(1u, test_names.count("CustomTestNames/FunctorName")); | |
881 | EXPECT_EQ(1u, test_names.count("CustomTestNames/FunctionName")); | |
882 | #if GTEST_LANG_CXX11 | |
883 | EXPECT_EQ(1u, test_names.count("CustomTestNames/LambdaName")); | |
884 | #endif // GTEST_LANG_CXX11 | |
885 | } | |
886 | ||
887 | // Test a numeric name to ensure PrintToStringParamName works correctly. | |
888 | ||
889 | class CustomIntegerNamingTest : public TestWithParam<int> {}; | |
890 | ||
891 | TEST_P(CustomIntegerNamingTest, TestsReportCorrectNames) { | |
892 | const ::testing::TestInfo* const test_info = | |
893 | ::testing::UnitTest::GetInstance()->current_test_info(); | |
894 | Message test_name_stream; | |
895 | test_name_stream << "TestsReportCorrectNames/" << GetParam(); | |
896 | EXPECT_STREQ(test_name_stream.GetString().c_str(), test_info->name()); | |
897 | } | |
898 | ||
899 | INSTANTIATE_TEST_CASE_P(PrintToString, | |
900 | CustomIntegerNamingTest, | |
901 | Range(0, 5), | |
902 | ::testing::PrintToStringParamName()); | |
903 | ||
904 | // Test a custom struct with PrintToString. | |
905 | ||
906 | struct CustomStruct { | |
907 | explicit CustomStruct(int value) : x(value) {} | |
908 | int x; | |
909 | }; | |
910 | ||
911 | std::ostream& operator<<(std::ostream& stream, const CustomStruct& val) { | |
912 | stream << val.x; | |
913 | return stream; | |
914 | } | |
915 | ||
916 | class CustomStructNamingTest : public TestWithParam<CustomStruct> {}; | |
917 | ||
918 | TEST_P(CustomStructNamingTest, TestsReportCorrectNames) { | |
919 | const ::testing::TestInfo* const test_info = | |
920 | ::testing::UnitTest::GetInstance()->current_test_info(); | |
921 | Message test_name_stream; | |
922 | test_name_stream << "TestsReportCorrectNames/" << GetParam(); | |
923 | EXPECT_STREQ(test_name_stream.GetString().c_str(), test_info->name()); | |
924 | } | |
925 | ||
926 | INSTANTIATE_TEST_CASE_P(PrintToString, | |
927 | CustomStructNamingTest, | |
928 | Values(CustomStruct(0), CustomStruct(1)), | |
929 | ::testing::PrintToStringParamName()); | |
930 | ||
931 | // Test that using a stateful parameter naming function works as expected. | |
932 | ||
933 | struct StatefulNamingFunctor { | |
934 | StatefulNamingFunctor() : sum(0) {} | |
935 | std::string operator()(const ::testing::TestParamInfo<int>& info) { | |
936 | int value = info.param + sum; | |
937 | sum += info.param; | |
938 | return ::testing::PrintToString(value); | |
939 | } | |
940 | int sum; | |
941 | }; | |
942 | ||
943 | class StatefulNamingTest : public ::testing::TestWithParam<int> { | |
944 | protected: | |
945 | StatefulNamingTest() : sum_(0) {} | |
946 | int sum_; | |
947 | }; | |
948 | ||
949 | TEST_P(StatefulNamingTest, TestsReportCorrectNames) { | |
950 | const ::testing::TestInfo* const test_info = | |
951 | ::testing::UnitTest::GetInstance()->current_test_info(); | |
952 | sum_ += GetParam(); | |
953 | Message test_name_stream; | |
954 | test_name_stream << "TestsReportCorrectNames/" << sum_; | |
955 | EXPECT_STREQ(test_name_stream.GetString().c_str(), test_info->name()); | |
956 | } | |
957 | ||
958 | INSTANTIATE_TEST_CASE_P(StatefulNamingFunctor, | |
959 | StatefulNamingTest, | |
960 | Range(0, 5), | |
961 | StatefulNamingFunctor()); | |
962 | ||
963 | // Class that cannot be streamed into an ostream. It needs to be copyable | |
964 | // (and, in case of MSVC, also assignable) in order to be a test parameter | |
965 | // type. Its default copy constructor and assignment operator do exactly | |
966 | // what we need. | |
967 | class Unstreamable { | |
968 | public: | |
969 | explicit Unstreamable(int value) : value_(value) {} | |
970 | ||
971 | private: | |
972 | int value_; | |
973 | }; | |
974 | ||
975 | class CommentTest : public TestWithParam<Unstreamable> {}; | |
976 | ||
977 | TEST_P(CommentTest, TestsCorrectlyReportUnstreamableParams) { | |
978 | const ::testing::TestInfo* const test_info = | |
979 | ::testing::UnitTest::GetInstance()->current_test_info(); | |
980 | ||
981 | EXPECT_EQ(::testing::PrintToString(GetParam()), test_info->value_param()); | |
982 | } | |
983 | ||
984 | INSTANTIATE_TEST_CASE_P(InstantiationWithComments, | |
985 | CommentTest, | |
986 | Values(Unstreamable(1))); | |
987 | ||
988 | // Verify that we can create a hierarchy of test fixtures, where the base | |
989 | // class fixture is not parameterized and the derived class is. In this case | |
990 | // ParameterizedDerivedTest inherits from NonParameterizedBaseTest. We | |
991 | // perform simple tests on both. | |
992 | class NonParameterizedBaseTest : public ::testing::Test { | |
993 | public: | |
994 | NonParameterizedBaseTest() : n_(17) { } | |
995 | protected: | |
996 | int n_; | |
997 | }; | |
998 | ||
999 | class ParameterizedDerivedTest : public NonParameterizedBaseTest, | |
1000 | public ::testing::WithParamInterface<int> { | |
1001 | protected: | |
1002 | ParameterizedDerivedTest() : count_(0) { } | |
1003 | int count_; | |
1004 | static int global_count_; | |
1005 | }; | |
1006 | ||
1007 | int ParameterizedDerivedTest::global_count_ = 0; | |
1008 | ||
1009 | TEST_F(NonParameterizedBaseTest, FixtureIsInitialized) { | |
1010 | EXPECT_EQ(17, n_); | |
1011 | } | |
1012 | ||
1013 | TEST_P(ParameterizedDerivedTest, SeesSequence) { | |
1014 | EXPECT_EQ(17, n_); | |
1015 | EXPECT_EQ(0, count_++); | |
1016 | EXPECT_EQ(GetParam(), global_count_++); | |
1017 | } | |
1018 | ||
1019 | class ParameterizedDeathTest : public ::testing::TestWithParam<int> { }; | |
1020 | ||
1021 | TEST_F(ParameterizedDeathTest, GetParamDiesFromTestF) { | |
1022 | EXPECT_DEATH_IF_SUPPORTED(GetParam(), | |
1023 | ".* value-parameterized test .*"); | |
1024 | } | |
1025 | ||
1026 | INSTANTIATE_TEST_CASE_P(RangeZeroToFive, ParameterizedDerivedTest, Range(0, 5)); | |
1027 | ||
1028 | #endif // GTEST_HAS_PARAM_TEST | |
1029 | ||
1030 | TEST(CompileTest, CombineIsDefinedOnlyWhenGtestHasParamTestIsDefined) { | |
1031 | #if GTEST_HAS_COMBINE && !GTEST_HAS_PARAM_TEST | |
1032 | FAIL() << "GTEST_HAS_COMBINE is defined while GTEST_HAS_PARAM_TEST is not\n" | |
1033 | #endif | |
1034 | } | |
1035 | ||
1036 | int main(int argc, char **argv) { | |
1037 | #if GTEST_HAS_PARAM_TEST | |
1038 | // Used in TestGenerationTest test case. | |
1039 | AddGlobalTestEnvironment(TestGenerationTest::Environment::Instance()); | |
1040 | // Used in GeneratorEvaluationTest test case. Tests that the updated value | |
1041 | // will be picked up for instantiating tests in GeneratorEvaluationTest. | |
1042 | GeneratorEvaluationTest::set_param_value(1); | |
1043 | #endif // GTEST_HAS_PARAM_TEST | |
1044 | ||
1045 | ::testing::InitGoogleTest(&argc, argv); | |
1046 | ||
1047 | #if GTEST_HAS_PARAM_TEST | |
1048 | // Used in GeneratorEvaluationTest test case. Tests that value updated | |
1049 | // here will NOT be used for instantiating tests in | |
1050 | // GeneratorEvaluationTest. | |
1051 | GeneratorEvaluationTest::set_param_value(2); | |
1052 | #endif // GTEST_HAS_PARAM_TEST | |
1053 | ||
1054 | return RUN_ALL_TESTS(); | |
1055 | } |