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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 | |
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
// | |
// Author: wan@google.com (Zhanyong Wan) | |
// | |
// 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 { | |
// Is the TEST_PREMATURE_EXIT_FILE environment variable expected to be | |
// set? | |
const bool kTestPrematureExitFileEnvVarShouldBeSet = false; | |
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 TEST_PREMATURE_EXIT_FILE is set where it's expected to | |
// be set. | |
TEST_F(PrematureExitTest, TestPrematureExitFileEnvVarIsSet) { | |
if (kTestPrematureExitFileEnvVarShouldBeSet) { | |
const char* const filepath = GetEnv("TEST_PREMATURE_EXIT_FILE"); | |
ASSERT_TRUE(filepath != NULL); | |
ASSERT_NE(*filepath, '\0'); | |
} | |
} | |
// 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; | |
} |