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google/googletest/dist/googletest/test/gtest_environment_test.cc
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// Copyright 2007, 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 using global test environments. | |||||
#include <stdlib.h> | |||||
#include <stdio.h> | |||||
#include "gtest/gtest.h" | |||||
#include "src/gtest-internal-inl.h" | |||||
namespace testing { | |||||
GTEST_DECLARE_string_(filter); | |||||
} | |||||
namespace { | |||||
enum FailureType { | |||||
NO_FAILURE, NON_FATAL_FAILURE, FATAL_FAILURE | |||||
}; | |||||
// For testing using global test environments. | |||||
class MyEnvironment : public testing::Environment { | |||||
public: | |||||
MyEnvironment() { Reset(); } | |||||
// Depending on the value of failure_in_set_up_, SetUp() will | |||||
// generate a non-fatal failure, generate a fatal failure, or | |||||
// succeed. | |||||
virtual void SetUp() { | |||||
set_up_was_run_ = true; | |||||
switch (failure_in_set_up_) { | |||||
case NON_FATAL_FAILURE: | |||||
ADD_FAILURE() << "Expected non-fatal failure in global set-up."; | |||||
break; | |||||
case FATAL_FAILURE: | |||||
FAIL() << "Expected fatal failure in global set-up."; | |||||
break; | |||||
default: | |||||
break; | |||||
} | |||||
} | |||||
// Generates a non-fatal failure. | |||||
virtual void TearDown() { | |||||
tear_down_was_run_ = true; | |||||
ADD_FAILURE() << "Expected non-fatal failure in global tear-down."; | |||||
} | |||||
// Resets the state of the environment s.t. it can be reused. | |||||
void Reset() { | |||||
failure_in_set_up_ = NO_FAILURE; | |||||
set_up_was_run_ = false; | |||||
tear_down_was_run_ = false; | |||||
} | |||||
// We call this function to set the type of failure SetUp() should | |||||
// generate. | |||||
void set_failure_in_set_up(FailureType type) { | |||||
failure_in_set_up_ = type; | |||||
} | |||||
// Was SetUp() run? | |||||
bool set_up_was_run() const { return set_up_was_run_; } | |||||
// Was TearDown() run? | |||||
bool tear_down_was_run() const { return tear_down_was_run_; } | |||||
private: | |||||
FailureType failure_in_set_up_; | |||||
bool set_up_was_run_; | |||||
bool tear_down_was_run_; | |||||
}; | |||||
// Was the TEST run? | |||||
bool test_was_run; | |||||
// The sole purpose of this TEST is to enable us to check whether it | |||||
// was run. | |||||
TEST(FooTest, Bar) { | |||||
test_was_run = true; | |||||
} | |||||
// Prints the message and aborts the program if condition is false. | |||||
void Check(bool condition, const char* msg) { | |||||
if (!condition) { | |||||
printf("FAILED: %s\n", msg); | |||||
testing::internal::posix::Abort(); | |||||
} | |||||
} | |||||
// Runs the tests. Return true iff successful. | |||||
// | |||||
// The 'failure' parameter specifies the type of failure that should | |||||
// be generated by the global set-up. | |||||
int RunAllTests(MyEnvironment* env, FailureType failure) { | |||||
env->Reset(); | |||||
env->set_failure_in_set_up(failure); | |||||
test_was_run = false; | |||||
testing::internal::GetUnitTestImpl()->ClearAdHocTestResult(); | |||||
return RUN_ALL_TESTS(); | |||||
} | |||||
} // namespace | |||||
int main(int argc, char **argv) { | |||||
testing::InitGoogleTest(&argc, argv); | |||||
// Registers a global test environment, and verifies that the | |||||
// registration function returns its argument. | |||||
MyEnvironment* const env = new MyEnvironment; | |||||
Check(testing::AddGlobalTestEnvironment(env) == env, | |||||
"AddGlobalTestEnvironment() should return its argument."); | |||||
// Verifies that RUN_ALL_TESTS() runs the tests when the global | |||||
// set-up is successful. | |||||
Check(RunAllTests(env, NO_FAILURE) != 0, | |||||
"RUN_ALL_TESTS() should return non-zero, as the global tear-down " | |||||
"should generate a failure."); | |||||
Check(test_was_run, | |||||
"The tests should run, as the global set-up should generate no " | |||||
"failure"); | |||||
Check(env->tear_down_was_run(), | |||||
"The global tear-down should run, as the global set-up was run."); | |||||
// Verifies that RUN_ALL_TESTS() runs the tests when the global | |||||
// set-up generates no fatal failure. | |||||
Check(RunAllTests(env, NON_FATAL_FAILURE) != 0, | |||||
"RUN_ALL_TESTS() should return non-zero, as both the global set-up " | |||||
"and the global tear-down should generate a non-fatal failure."); | |||||
Check(test_was_run, | |||||
"The tests should run, as the global set-up should generate no " | |||||
"fatal failure."); | |||||
Check(env->tear_down_was_run(), | |||||
"The global tear-down should run, as the global set-up was run."); | |||||
// Verifies that RUN_ALL_TESTS() runs no test when the global set-up | |||||
// generates a fatal failure. | |||||
Check(RunAllTests(env, FATAL_FAILURE) != 0, | |||||
"RUN_ALL_TESTS() should return non-zero, as the global set-up " | |||||
"should generate a fatal failure."); | |||||
Check(!test_was_run, | |||||
"The tests should not run, as the global set-up should generate " | |||||
"a fatal failure."); | |||||
Check(env->tear_down_was_run(), | |||||
"The global tear-down should run, as the global set-up was run."); | |||||
// Verifies that RUN_ALL_TESTS() doesn't do global set-up or | |||||
// tear-down when there is no test to run. | |||||
testing::GTEST_FLAG(filter) = "-*"; | |||||
Check(RunAllTests(env, NO_FAILURE) == 0, | |||||
"RUN_ALL_TESTS() should return zero, as there is no test to run."); | |||||
Check(!env->set_up_was_run(), | |||||
"The global set-up should not run, as there is no test to run."); | |||||
Check(!env->tear_down_was_run(), | |||||
"The global tear-down should not run, " | |||||
"as the global set-up was not run."); | |||||
printf("PASS\n"); | |||||
return 0; | |||||
} |