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google/googletest/dist/googletest/test/gtest_repeat_test.cc
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// Copyright 2008, Google Inc. | |||||
// All rights reserved. | |||||
// | |||||
// Redistribution and use in source and binary forms, with or without | |||||
// modification, are permitted provided that the following conditions are | |||||
// met: | |||||
// | |||||
// * Redistributions of source code must retain the above copyright | |||||
// notice, this list of conditions and the following disclaimer. | |||||
// * Redistributions in binary form must reproduce the above | |||||
// copyright notice, this list of conditions and the following disclaimer | |||||
// in the documentation and/or other materials provided with the | |||||
// distribution. | |||||
// * Neither the name of Google Inc. nor the names of its | |||||
// contributors may be used to endorse or promote products derived from | |||||
// this software without specific prior written permission. | |||||
// | |||||
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |||||
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |||||
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |||||
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |||||
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |||||
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |||||
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |||||
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |||||
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |||||
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |||||
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |||||
// Tests the --gtest_repeat=number flag. | |||||
#include <stdlib.h> | |||||
#include <iostream> | |||||
#include "gtest/gtest.h" | |||||
#include "src/gtest-internal-inl.h" | |||||
namespace testing { | |||||
GTEST_DECLARE_string_(death_test_style); | |||||
GTEST_DECLARE_string_(filter); | |||||
GTEST_DECLARE_int32_(repeat); | |||||
} // namespace testing | |||||
using testing::GTEST_FLAG(death_test_style); | |||||
using testing::GTEST_FLAG(filter); | |||||
using testing::GTEST_FLAG(repeat); | |||||
namespace { | |||||
// We need this when we are testing Google Test itself and therefore | |||||
// cannot use Google Test assertions. | |||||
#define GTEST_CHECK_INT_EQ_(expected, actual) \ | |||||
do {\ | |||||
const int expected_val = (expected);\ | |||||
const int actual_val = (actual);\ | |||||
if (::testing::internal::IsTrue(expected_val != actual_val)) {\ | |||||
::std::cout << "Value of: " #actual "\n"\ | |||||
<< " Actual: " << actual_val << "\n"\ | |||||
<< "Expected: " #expected "\n"\ | |||||
<< "Which is: " << expected_val << "\n";\ | |||||
::testing::internal::posix::Abort();\ | |||||
}\ | |||||
} while (::testing::internal::AlwaysFalse()) | |||||
// Used for verifying that global environment set-up and tear-down are | |||||
// inside the --gtest_repeat loop. | |||||
int g_environment_set_up_count = 0; | |||||
int g_environment_tear_down_count = 0; | |||||
class MyEnvironment : public testing::Environment { | |||||
public: | |||||
MyEnvironment() {} | |||||
virtual void SetUp() { g_environment_set_up_count++; } | |||||
virtual void TearDown() { g_environment_tear_down_count++; } | |||||
}; | |||||
// A test that should fail. | |||||
int g_should_fail_count = 0; | |||||
TEST(FooTest, ShouldFail) { | |||||
g_should_fail_count++; | |||||
EXPECT_EQ(0, 1) << "Expected failure."; | |||||
} | |||||
// A test that should pass. | |||||
int g_should_pass_count = 0; | |||||
TEST(FooTest, ShouldPass) { | |||||
g_should_pass_count++; | |||||
} | |||||
// A test that contains a thread-safe death test and a fast death | |||||
// test. It should pass. | |||||
int g_death_test_count = 0; | |||||
TEST(BarDeathTest, ThreadSafeAndFast) { | |||||
g_death_test_count++; | |||||
GTEST_FLAG(death_test_style) = "threadsafe"; | |||||
EXPECT_DEATH_IF_SUPPORTED(::testing::internal::posix::Abort(), ""); | |||||
GTEST_FLAG(death_test_style) = "fast"; | |||||
EXPECT_DEATH_IF_SUPPORTED(::testing::internal::posix::Abort(), ""); | |||||
} | |||||
int g_param_test_count = 0; | |||||
const int kNumberOfParamTests = 10; | |||||
class MyParamTest : public testing::TestWithParam<int> {}; | |||||
TEST_P(MyParamTest, ShouldPass) { | |||||
// FIXME: Make parameter value checking robust WRT order of tests. | |||||
GTEST_CHECK_INT_EQ_(g_param_test_count % kNumberOfParamTests, GetParam()); | |||||
g_param_test_count++; | |||||
} | |||||
INSTANTIATE_TEST_CASE_P(MyParamSequence, | |||||
MyParamTest, | |||||
testing::Range(0, kNumberOfParamTests)); | |||||
// Resets the count for each test. | |||||
void ResetCounts() { | |||||
g_environment_set_up_count = 0; | |||||
g_environment_tear_down_count = 0; | |||||
g_should_fail_count = 0; | |||||
g_should_pass_count = 0; | |||||
g_death_test_count = 0; | |||||
g_param_test_count = 0; | |||||
} | |||||
// Checks that the count for each test is expected. | |||||
void CheckCounts(int expected) { | |||||
GTEST_CHECK_INT_EQ_(expected, g_environment_set_up_count); | |||||
GTEST_CHECK_INT_EQ_(expected, g_environment_tear_down_count); | |||||
GTEST_CHECK_INT_EQ_(expected, g_should_fail_count); | |||||
GTEST_CHECK_INT_EQ_(expected, g_should_pass_count); | |||||
GTEST_CHECK_INT_EQ_(expected, g_death_test_count); | |||||
GTEST_CHECK_INT_EQ_(expected * kNumberOfParamTests, g_param_test_count); | |||||
} | |||||
// Tests the behavior of Google Test when --gtest_repeat is not specified. | |||||
void TestRepeatUnspecified() { | |||||
ResetCounts(); | |||||
GTEST_CHECK_INT_EQ_(1, RUN_ALL_TESTS()); | |||||
CheckCounts(1); | |||||
} | |||||
// Tests the behavior of Google Test when --gtest_repeat has the given value. | |||||
void TestRepeat(int repeat) { | |||||
GTEST_FLAG(repeat) = repeat; | |||||
ResetCounts(); | |||||
GTEST_CHECK_INT_EQ_(repeat > 0 ? 1 : 0, RUN_ALL_TESTS()); | |||||
CheckCounts(repeat); | |||||
} | |||||
// Tests using --gtest_repeat when --gtest_filter specifies an empty | |||||
// set of tests. | |||||
void TestRepeatWithEmptyFilter(int repeat) { | |||||
GTEST_FLAG(repeat) = repeat; | |||||
GTEST_FLAG(filter) = "None"; | |||||
ResetCounts(); | |||||
GTEST_CHECK_INT_EQ_(0, RUN_ALL_TESTS()); | |||||
CheckCounts(0); | |||||
} | |||||
// Tests using --gtest_repeat when --gtest_filter specifies a set of | |||||
// successful tests. | |||||
void TestRepeatWithFilterForSuccessfulTests(int repeat) { | |||||
GTEST_FLAG(repeat) = repeat; | |||||
GTEST_FLAG(filter) = "*-*ShouldFail"; | |||||
ResetCounts(); | |||||
GTEST_CHECK_INT_EQ_(0, RUN_ALL_TESTS()); | |||||
GTEST_CHECK_INT_EQ_(repeat, g_environment_set_up_count); | |||||
GTEST_CHECK_INT_EQ_(repeat, g_environment_tear_down_count); | |||||
GTEST_CHECK_INT_EQ_(0, g_should_fail_count); | |||||
GTEST_CHECK_INT_EQ_(repeat, g_should_pass_count); | |||||
GTEST_CHECK_INT_EQ_(repeat, g_death_test_count); | |||||
GTEST_CHECK_INT_EQ_(repeat * kNumberOfParamTests, g_param_test_count); | |||||
} | |||||
// Tests using --gtest_repeat when --gtest_filter specifies a set of | |||||
// failed tests. | |||||
void TestRepeatWithFilterForFailedTests(int repeat) { | |||||
GTEST_FLAG(repeat) = repeat; | |||||
GTEST_FLAG(filter) = "*ShouldFail"; | |||||
ResetCounts(); | |||||
GTEST_CHECK_INT_EQ_(1, RUN_ALL_TESTS()); | |||||
GTEST_CHECK_INT_EQ_(repeat, g_environment_set_up_count); | |||||
GTEST_CHECK_INT_EQ_(repeat, g_environment_tear_down_count); | |||||
GTEST_CHECK_INT_EQ_(repeat, g_should_fail_count); | |||||
GTEST_CHECK_INT_EQ_(0, g_should_pass_count); | |||||
GTEST_CHECK_INT_EQ_(0, g_death_test_count); | |||||
GTEST_CHECK_INT_EQ_(0, g_param_test_count); | |||||
} | |||||
} // namespace | |||||
int main(int argc, char **argv) { | |||||
testing::InitGoogleTest(&argc, argv); | |||||
testing::AddGlobalTestEnvironment(new MyEnvironment); | |||||
TestRepeatUnspecified(); | |||||
TestRepeat(0); | |||||
TestRepeat(1); | |||||
TestRepeat(5); | |||||
TestRepeatWithEmptyFilter(2); | |||||
TestRepeatWithEmptyFilter(3); | |||||
TestRepeatWithFilterForSuccessfulTests(3); | |||||
TestRepeatWithFilterForFailedTests(4); | |||||
// It would be nice to verify that the tests indeed loop forever | |||||
// when GTEST_FLAG(repeat) is negative, but this test will be quite | |||||
// complicated to write. Since this flag is for interactive | |||||
// debugging only and doesn't affect the normal test result, such a | |||||
// test would be an overkill. | |||||
printf("PASS\n"); | |||||
return 0; | |||||
} |