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google/googletest/dist/googletest/test/gtest_premature_exit_test.cc
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// Copyright 2013, 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 that Google Test manipulates the premature-exit-detection | |||||
// file correctly. | |||||
#include <stdio.h> | |||||
#include "gtest/gtest.h" | |||||
using ::testing::InitGoogleTest; | |||||
using ::testing::Test; | |||||
using ::testing::internal::posix::GetEnv; | |||||
using ::testing::internal::posix::Stat; | |||||
using ::testing::internal::posix::StatStruct; | |||||
namespace { | |||||
class PrematureExitTest : public Test { | |||||
public: | |||||
// Returns true iff the given file exists. | |||||
static bool FileExists(const char* filepath) { | |||||
StatStruct stat; | |||||
return Stat(filepath, &stat) == 0; | |||||
} | |||||
protected: | |||||
PrematureExitTest() { | |||||
premature_exit_file_path_ = GetEnv("TEST_PREMATURE_EXIT_FILE"); | |||||
// Normalize NULL to "" for ease of handling. | |||||
if (premature_exit_file_path_ == NULL) { | |||||
premature_exit_file_path_ = ""; | |||||
} | |||||
} | |||||
// Returns true iff the premature-exit file exists. | |||||
bool PrematureExitFileExists() const { | |||||
return FileExists(premature_exit_file_path_); | |||||
} | |||||
const char* premature_exit_file_path_; | |||||
}; | |||||
typedef PrematureExitTest PrematureExitDeathTest; | |||||
// Tests that: | |||||
// - the premature-exit file exists during the execution of a | |||||
// death test (EXPECT_DEATH*), and | |||||
// - a death test doesn't interfere with the main test process's | |||||
// handling of the premature-exit file. | |||||
TEST_F(PrematureExitDeathTest, FileExistsDuringExecutionOfDeathTest) { | |||||
if (*premature_exit_file_path_ == '\0') { | |||||
return; | |||||
} | |||||
EXPECT_DEATH_IF_SUPPORTED({ | |||||
// If the file exists, crash the process such that the main test | |||||
// process will catch the (expected) crash and report a success; | |||||
// otherwise don't crash, which will cause the main test process | |||||
// to report that the death test has failed. | |||||
if (PrematureExitFileExists()) { | |||||
exit(1); | |||||
} | |||||
}, ""); | |||||
} | |||||
// Tests that the premature-exit file exists during the execution of a | |||||
// normal (non-death) test. | |||||
TEST_F(PrematureExitTest, PrematureExitFileExistsDuringTestExecution) { | |||||
if (*premature_exit_file_path_ == '\0') { | |||||
return; | |||||
} | |||||
EXPECT_TRUE(PrematureExitFileExists()) | |||||
<< " file " << premature_exit_file_path_ | |||||
<< " should exist during test execution, but doesn't."; | |||||
} | |||||
} // namespace | |||||
int main(int argc, char **argv) { | |||||
InitGoogleTest(&argc, argv); | |||||
const int exit_code = RUN_ALL_TESTS(); | |||||
// Test that the premature-exit file is deleted upon return from | |||||
// RUN_ALL_TESTS(). | |||||
const char* const filepath = GetEnv("TEST_PREMATURE_EXIT_FILE"); | |||||
if (filepath != NULL && *filepath != '\0') { | |||||
if (PrematureExitTest::FileExists(filepath)) { | |||||
printf( | |||||
"File %s shouldn't exist after the test program finishes, but does.", | |||||
filepath); | |||||
return 1; | |||||
} | |||||
} | |||||
return exit_code; | |||||
} |