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authorEric Anholt <eric@anholt.net>2012-03-05 17:01:11 -0800
committerIan Romanick <ian.d.romanick@intel.com>2012-04-12 17:17:10 -0700
commitfe358c0ffa4acb7ecab10fda68ba9740497d2e7f (patch)
treec1b21728bc1f93af3b21d31f19f80f484a22c172 /src/gtest/src/gtest-death-test.cc
parent6f03692775ed49035802d660516b7d7464c7a1ad (diff)
gtest: Import sources from gtest 1.6.0.
The upstream of gtest has decided that the intended usage model is for projects to import the source and use it, which is reflected in their recent removal of the gtest-config tool. Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> Reviewed-by: Chad Versace <chad.versace@linux.intel.com>
Diffstat (limited to 'src/gtest/src/gtest-death-test.cc')
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diff --git a/src/gtest/src/gtest-death-test.cc b/src/gtest/src/gtest-death-test.cc
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+// Copyright 2005, 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.
+//
+// Author: wan@google.com (Zhanyong Wan), vladl@google.com (Vlad Losev)
+//
+// This file implements death tests.
+
+#include "gtest/gtest-death-test.h"
+#include "gtest/internal/gtest-port.h"
+
+#if GTEST_HAS_DEATH_TEST
+
+# if GTEST_OS_MAC
+# include <crt_externs.h>
+# endif // GTEST_OS_MAC
+
+# include <errno.h>
+# include <fcntl.h>
+# include <limits.h>
+# include <stdarg.h>
+
+# if GTEST_OS_WINDOWS
+# include <windows.h>
+# else
+# include <sys/mman.h>
+# include <sys/wait.h>
+# endif // GTEST_OS_WINDOWS
+
+#endif // GTEST_HAS_DEATH_TEST
+
+#include "gtest/gtest-message.h"
+#include "gtest/internal/gtest-string.h"
+
+// Indicates that this translation unit is part of Google Test's
+// implementation. It must come before gtest-internal-inl.h is
+// included, or there will be a compiler error. This trick is to
+// prevent a user from accidentally including gtest-internal-inl.h in
+// his code.
+#define GTEST_IMPLEMENTATION_ 1
+#include "src/gtest-internal-inl.h"
+#undef GTEST_IMPLEMENTATION_
+
+namespace testing {
+
+// Constants.
+
+// The default death test style.
+static const char kDefaultDeathTestStyle[] = "fast";
+
+GTEST_DEFINE_string_(
+ death_test_style,
+ internal::StringFromGTestEnv("death_test_style", kDefaultDeathTestStyle),
+ "Indicates how to run a death test in a forked child process: "
+ "\"threadsafe\" (child process re-executes the test binary "
+ "from the beginning, running only the specific death test) or "
+ "\"fast\" (child process runs the death test immediately "
+ "after forking).");
+
+GTEST_DEFINE_bool_(
+ death_test_use_fork,
+ internal::BoolFromGTestEnv("death_test_use_fork", false),
+ "Instructs to use fork()/_exit() instead of clone() in death tests. "
+ "Ignored and always uses fork() on POSIX systems where clone() is not "
+ "implemented. Useful when running under valgrind or similar tools if "
+ "those do not support clone(). Valgrind 3.3.1 will just fail if "
+ "it sees an unsupported combination of clone() flags. "
+ "It is not recommended to use this flag w/o valgrind though it will "
+ "work in 99% of the cases. Once valgrind is fixed, this flag will "
+ "most likely be removed.");
+
+namespace internal {
+GTEST_DEFINE_string_(
+ internal_run_death_test, "",
+ "Indicates the file, line number, temporal index of "
+ "the single death test to run, and a file descriptor to "
+ "which a success code may be sent, all separated by "
+ "colons. This flag is specified if and only if the current "
+ "process is a sub-process launched for running a thread-safe "
+ "death test. FOR INTERNAL USE ONLY.");
+} // namespace internal
+
+#if GTEST_HAS_DEATH_TEST
+
+// ExitedWithCode constructor.
+ExitedWithCode::ExitedWithCode(int exit_code) : exit_code_(exit_code) {
+}
+
+// ExitedWithCode function-call operator.
+bool ExitedWithCode::operator()(int exit_status) const {
+# if GTEST_OS_WINDOWS
+
+ return exit_status == exit_code_;
+
+# else
+
+ return WIFEXITED(exit_status) && WEXITSTATUS(exit_status) == exit_code_;
+
+# endif // GTEST_OS_WINDOWS
+}
+
+# if !GTEST_OS_WINDOWS
+// KilledBySignal constructor.
+KilledBySignal::KilledBySignal(int signum) : signum_(signum) {
+}
+
+// KilledBySignal function-call operator.
+bool KilledBySignal::operator()(int exit_status) const {
+ return WIFSIGNALED(exit_status) && WTERMSIG(exit_status) == signum_;
+}
+# endif // !GTEST_OS_WINDOWS
+
+namespace internal {
+
+// Utilities needed for death tests.
+
+// Generates a textual description of a given exit code, in the format
+// specified by wait(2).
+static String ExitSummary(int exit_code) {
+ Message m;
+
+# if GTEST_OS_WINDOWS
+
+ m << "Exited with exit status " << exit_code;
+
+# else
+
+ if (WIFEXITED(exit_code)) {
+ m << "Exited with exit status " << WEXITSTATUS(exit_code);
+ } else if (WIFSIGNALED(exit_code)) {
+ m << "Terminated by signal " << WTERMSIG(exit_code);
+ }
+# ifdef WCOREDUMP
+ if (WCOREDUMP(exit_code)) {
+ m << " (core dumped)";
+ }
+# endif
+# endif // GTEST_OS_WINDOWS
+
+ return m.GetString();
+}
+
+// Returns true if exit_status describes a process that was terminated
+// by a signal, or exited normally with a nonzero exit code.
+bool ExitedUnsuccessfully(int exit_status) {
+ return !ExitedWithCode(0)(exit_status);
+}
+
+# if !GTEST_OS_WINDOWS
+// Generates a textual failure message when a death test finds more than
+// one thread running, or cannot determine the number of threads, prior
+// to executing the given statement. It is the responsibility of the
+// caller not to pass a thread_count of 1.
+static String DeathTestThreadWarning(size_t thread_count) {
+ Message msg;
+ msg << "Death tests use fork(), which is unsafe particularly"
+ << " in a threaded context. For this test, " << GTEST_NAME_ << " ";
+ if (thread_count == 0)
+ msg << "couldn't detect the number of threads.";
+ else
+ msg << "detected " << thread_count << " threads.";
+ return msg.GetString();
+}
+# endif // !GTEST_OS_WINDOWS
+
+// Flag characters for reporting a death test that did not die.
+static const char kDeathTestLived = 'L';
+static const char kDeathTestReturned = 'R';
+static const char kDeathTestThrew = 'T';
+static const char kDeathTestInternalError = 'I';
+
+// An enumeration describing all of the possible ways that a death test can
+// conclude. DIED means that the process died while executing the test
+// code; LIVED means that process lived beyond the end of the test code;
+// RETURNED means that the test statement attempted to execute a return
+// statement, which is not allowed; THREW means that the test statement
+// returned control by throwing an exception. IN_PROGRESS means the test
+// has not yet concluded.
+// TODO(vladl@google.com): Unify names and possibly values for
+// AbortReason, DeathTestOutcome, and flag characters above.
+enum DeathTestOutcome { IN_PROGRESS, DIED, LIVED, RETURNED, THREW };
+
+// Routine for aborting the program which is safe to call from an
+// exec-style death test child process, in which case the error
+// message is propagated back to the parent process. Otherwise, the
+// message is simply printed to stderr. In either case, the program
+// then exits with status 1.
+void DeathTestAbort(const String& message) {
+ // On a POSIX system, this function may be called from a threadsafe-style
+ // death test child process, which operates on a very small stack. Use
+ // the heap for any additional non-minuscule memory requirements.
+ const InternalRunDeathTestFlag* const flag =
+ GetUnitTestImpl()->internal_run_death_test_flag();
+ if (flag != NULL) {
+ FILE* parent = posix::FDOpen(flag->write_fd(), "w");
+ fputc(kDeathTestInternalError, parent);
+ fprintf(parent, "%s", message.c_str());
+ fflush(parent);
+ _exit(1);
+ } else {
+ fprintf(stderr, "%s", message.c_str());
+ fflush(stderr);
+ posix::Abort();
+ }
+}
+
+// A replacement for CHECK that calls DeathTestAbort if the assertion
+// fails.
+# define GTEST_DEATH_TEST_CHECK_(expression) \
+ do { \
+ if (!::testing::internal::IsTrue(expression)) { \
+ DeathTestAbort(::testing::internal::String::Format( \
+ "CHECK failed: File %s, line %d: %s", \
+ __FILE__, __LINE__, #expression)); \
+ } \
+ } while (::testing::internal::AlwaysFalse())
+
+// This macro is similar to GTEST_DEATH_TEST_CHECK_, but it is meant for
+// evaluating any system call that fulfills two conditions: it must return
+// -1 on failure, and set errno to EINTR when it is interrupted and
+// should be tried again. The macro expands to a loop that repeatedly
+// evaluates the expression as long as it evaluates to -1 and sets
+// errno to EINTR. If the expression evaluates to -1 but errno is
+// something other than EINTR, DeathTestAbort is called.
+# define GTEST_DEATH_TEST_CHECK_SYSCALL_(expression) \
+ do { \
+ int gtest_retval; \
+ do { \
+ gtest_retval = (expression); \
+ } while (gtest_retval == -1 && errno == EINTR); \
+ if (gtest_retval == -1) { \
+ DeathTestAbort(::testing::internal::String::Format( \
+ "CHECK failed: File %s, line %d: %s != -1", \
+ __FILE__, __LINE__, #expression)); \
+ } \
+ } while (::testing::internal::AlwaysFalse())
+
+// Returns the message describing the last system error in errno.
+String GetLastErrnoDescription() {
+ return String(errno == 0 ? "" : posix::StrError(errno));
+}
+
+// This is called from a death test parent process to read a failure
+// message from the death test child process and log it with the FATAL
+// severity. On Windows, the message is read from a pipe handle. On other
+// platforms, it is read from a file descriptor.
+static void FailFromInternalError(int fd) {
+ Message error;
+ char buffer[256];
+ int num_read;
+
+ do {
+ while ((num_read = posix::Read(fd, buffer, 255)) > 0) {
+ buffer[num_read] = '\0';
+ error << buffer;
+ }
+ } while (num_read == -1 && errno == EINTR);
+
+ if (num_read == 0) {
+ GTEST_LOG_(FATAL) << error.GetString();
+ } else {
+ const int last_error = errno;
+ GTEST_LOG_(FATAL) << "Error while reading death test internal: "
+ << GetLastErrnoDescription() << " [" << last_error << "]";
+ }
+}
+
+// Death test constructor. Increments the running death test count
+// for the current test.
+DeathTest::DeathTest() {
+ TestInfo* const info = GetUnitTestImpl()->current_test_info();
+ if (info == NULL) {
+ DeathTestAbort("Cannot run a death test outside of a TEST or "
+ "TEST_F construct");
+ }
+}
+
+// Creates and returns a death test by dispatching to the current
+// death test factory.
+bool DeathTest::Create(const char* statement, const RE* regex,
+ const char* file, int line, DeathTest** test) {
+ return GetUnitTestImpl()->death_test_factory()->Create(
+ statement, regex, file, line, test);
+}
+
+const char* DeathTest::LastMessage() {
+ return last_death_test_message_.c_str();
+}
+
+void DeathTest::set_last_death_test_message(const String& message) {
+ last_death_test_message_ = message;
+}
+
+String DeathTest::last_death_test_message_;
+
+// Provides cross platform implementation for some death functionality.
+class DeathTestImpl : public DeathTest {
+ protected:
+ DeathTestImpl(const char* a_statement, const RE* a_regex)
+ : statement_(a_statement),
+ regex_(a_regex),
+ spawned_(false),
+ status_(-1),
+ outcome_(IN_PROGRESS),
+ read_fd_(-1),
+ write_fd_(-1) {}
+
+ // read_fd_ is expected to be closed and cleared by a derived class.
+ ~DeathTestImpl() { GTEST_DEATH_TEST_CHECK_(read_fd_ == -1); }
+
+ void Abort(AbortReason reason);
+ virtual bool Passed(bool status_ok);
+
+ const char* statement() const { return statement_; }
+ const RE* regex() const { return regex_; }
+ bool spawned() const { return spawned_; }
+ void set_spawned(bool is_spawned) { spawned_ = is_spawned; }
+ int status() const { return status_; }
+ void set_status(int a_status) { status_ = a_status; }
+ DeathTestOutcome outcome() const { return outcome_; }
+ void set_outcome(DeathTestOutcome an_outcome) { outcome_ = an_outcome; }
+ int read_fd() const { return read_fd_; }
+ void set_read_fd(int fd) { read_fd_ = fd; }
+ int write_fd() const { return write_fd_; }
+ void set_write_fd(int fd) { write_fd_ = fd; }
+
+ // Called in the parent process only. Reads the result code of the death
+ // test child process via a pipe, interprets it to set the outcome_
+ // member, and closes read_fd_. Outputs diagnostics and terminates in
+ // case of unexpected codes.
+ void ReadAndInterpretStatusByte();
+
+ private:
+ // The textual content of the code this object is testing. This class
+ // doesn't own this string and should not attempt to delete it.
+ const char* const statement_;
+ // The regular expression which test output must match. DeathTestImpl
+ // doesn't own this object and should not attempt to delete it.
+ const RE* const regex_;
+ // True if the death test child process has been successfully spawned.
+ bool spawned_;
+ // The exit status of the child process.
+ int status_;
+ // How the death test concluded.
+ DeathTestOutcome outcome_;
+ // Descriptor to the read end of the pipe to the child process. It is
+ // always -1 in the child process. The child keeps its write end of the
+ // pipe in write_fd_.
+ int read_fd_;
+ // Descriptor to the child's write end of the pipe to the parent process.
+ // It is always -1 in the parent process. The parent keeps its end of the
+ // pipe in read_fd_.
+ int write_fd_;
+};
+
+// Called in the parent process only. Reads the result code of the death
+// test child process via a pipe, interprets it to set the outcome_
+// member, and closes read_fd_. Outputs diagnostics and terminates in
+// case of unexpected codes.
+void DeathTestImpl::ReadAndInterpretStatusByte() {
+ char flag;
+ int bytes_read;
+
+ // The read() here blocks until data is available (signifying the
+ // failure of the death test) or until the pipe is closed (signifying
+ // its success), so it's okay to call this in the parent before
+ // the child process has exited.
+ do {
+ bytes_read = posix::Read(read_fd(), &flag, 1);
+ } while (bytes_read == -1 && errno == EINTR);
+
+ if (bytes_read == 0) {
+ set_outcome(DIED);
+ } else if (bytes_read == 1) {
+ switch (flag) {
+ case kDeathTestReturned:
+ set_outcome(RETURNED);
+ break;
+ case kDeathTestThrew:
+ set_outcome(THREW);
+ break;
+ case kDeathTestLived:
+ set_outcome(LIVED);
+ break;
+ case kDeathTestInternalError:
+ FailFromInternalError(read_fd()); // Does not return.
+ break;
+ default:
+ GTEST_LOG_(FATAL) << "Death test child process reported "
+ << "unexpected status byte ("
+ << static_cast<unsigned int>(flag) << ")";
+ }
+ } else {
+ GTEST_LOG_(FATAL) << "Read from death test child process failed: "
+ << GetLastErrnoDescription();
+ }
+ GTEST_DEATH_TEST_CHECK_SYSCALL_(posix::Close(read_fd()));
+ set_read_fd(-1);
+}
+
+// Signals that the death test code which should have exited, didn't.
+// Should be called only in a death test child process.
+// Writes a status byte to the child's status file descriptor, then
+// calls _exit(1).
+void DeathTestImpl::Abort(AbortReason reason) {
+ // The parent process considers the death test to be a failure if
+ // it finds any data in our pipe. So, here we write a single flag byte
+ // to the pipe, then exit.
+ const char status_ch =
+ reason == TEST_DID_NOT_DIE ? kDeathTestLived :
+ reason == TEST_THREW_EXCEPTION ? kDeathTestThrew : kDeathTestReturned;
+
+ GTEST_DEATH_TEST_CHECK_SYSCALL_(posix::Write(write_fd(), &status_ch, 1));
+ // We are leaking the descriptor here because on some platforms (i.e.,
+ // when built as Windows DLL), destructors of global objects will still
+ // run after calling _exit(). On such systems, write_fd_ will be
+ // indirectly closed from the destructor of UnitTestImpl, causing double
+ // close if it is also closed here. On debug configurations, double close
+ // may assert. As there are no in-process buffers to flush here, we are
+ // relying on the OS to close the descriptor after the process terminates
+ // when the destructors are not run.
+ _exit(1); // Exits w/o any normal exit hooks (we were supposed to crash)
+}
+
+// Returns an indented copy of stderr output for a death test.
+// This makes distinguishing death test output lines from regular log lines
+// much easier.
+static ::std::string FormatDeathTestOutput(const ::std::string& output) {
+ ::std::string ret;
+ for (size_t at = 0; ; ) {
+ const size_t line_end = output.find('\n', at);
+ ret += "[ DEATH ] ";
+ if (line_end == ::std::string::npos) {
+ ret += output.substr(at);
+ break;
+ }
+ ret += output.substr(at, line_end + 1 - at);
+ at = line_end + 1;
+ }
+ return ret;
+}
+
+// Assesses the success or failure of a death test, using both private
+// members which have previously been set, and one argument:
+//
+// Private data members:
+// outcome: An enumeration describing how the death test
+// concluded: DIED, LIVED, THREW, or RETURNED. The death test
+// fails in the latter three cases.
+// status: The exit status of the child process. On *nix, it is in the
+// in the format specified by wait(2). On Windows, this is the
+// value supplied to the ExitProcess() API or a numeric code
+// of the exception that terminated the program.
+// regex: A regular expression object to be applied to
+// the test's captured standard error output; the death test
+// fails if it does not match.
+//
+// Argument:
+// status_ok: true if exit_status is acceptable in the context of
+// this particular death test, which fails if it is false
+//
+// Returns true iff all of the above conditions are met. Otherwise, the
+// first failing condition, in the order given above, is the one that is
+// reported. Also sets the last death test message string.
+bool DeathTestImpl::Passed(bool status_ok) {
+ if (!spawned())
+ return false;
+
+ const String error_message = GetCapturedStderr();
+
+ bool success = false;
+ Message buffer;
+
+ buffer << "Death test: " << statement() << "\n";
+ switch (outcome()) {
+ case LIVED:
+ buffer << " Result: failed to die.\n"
+ << " Error msg:\n" << FormatDeathTestOutput(error_message);
+ break;
+ case THREW:
+ buffer << " Result: threw an exception.\n"
+ << " Error msg:\n" << FormatDeathTestOutput(error_message);
+ break;
+ case RETURNED:
+ buffer << " Result: illegal return in test statement.\n"
+ << " Error msg:\n" << FormatDeathTestOutput(error_message);
+ break;
+ case DIED:
+ if (status_ok) {
+ const bool matched = RE::PartialMatch(error_message.c_str(), *regex());
+ if (matched) {
+ success = true;
+ } else {
+ buffer << " Result: died but not with expected error.\n"
+ << " Expected: " << regex()->pattern() << "\n"
+ << "Actual msg:\n" << FormatDeathTestOutput(error_message);
+ }
+ } else {
+ buffer << " Result: died but not with expected exit code:\n"
+ << " " << ExitSummary(status()) << "\n"
+ << "Actual msg:\n" << FormatDeathTestOutput(error_message);
+ }
+ break;
+ case IN_PROGRESS:
+ default:
+ GTEST_LOG_(FATAL)
+ << "DeathTest::Passed somehow called before conclusion of test";
+ }
+
+ DeathTest::set_last_death_test_message(buffer.GetString());
+ return success;
+}
+
+# if GTEST_OS_WINDOWS
+// WindowsDeathTest implements death tests on Windows. Due to the
+// specifics of starting new processes on Windows, death tests there are
+// always threadsafe, and Google Test considers the
+// --gtest_death_test_style=fast setting to be equivalent to
+// --gtest_death_test_style=threadsafe there.
+//
+// A few implementation notes: Like the Linux version, the Windows
+// implementation uses pipes for child-to-parent communication. But due to
+// the specifics of pipes on Windows, some extra steps are required:
+//
+// 1. The parent creates a communication pipe and stores handles to both
+// ends of it.
+// 2. The parent starts the child and provides it with the information
+// necessary to acquire the handle to the write end of the pipe.
+// 3. The child acquires the write end of the pipe and signals the parent
+// using a Windows event.
+// 4. Now the parent can release the write end of the pipe on its side. If
+// this is done before step 3, the object's reference count goes down to
+// 0 and it is destroyed, preventing the child from acquiring it. The
+// parent now has to release it, or read operations on the read end of
+// the pipe will not return when the child terminates.
+// 5. The parent reads child's output through the pipe (outcome code and
+// any possible error messages) from the pipe, and its stderr and then
+// determines whether to fail the test.
+//
+// Note: to distinguish Win32 API calls from the local method and function
+// calls, the former are explicitly resolved in the global namespace.
+//
+class WindowsDeathTest : public DeathTestImpl {
+ public:
+ WindowsDeathTest(const char* a_statement,
+ const RE* a_regex,
+ const char* file,
+ int line)
+ : DeathTestImpl(a_statement, a_regex), file_(file), line_(line) {}
+
+ // All of these virtual functions are inherited from DeathTest.
+ virtual int Wait();
+ virtual TestRole AssumeRole();
+
+ private:
+ // The name of the file in which the death test is located.
+ const char* const file_;
+ // The line number on which the death test is located.
+ const int line_;
+ // Handle to the write end of the pipe to the child process.
+ AutoHandle write_handle_;
+ // Child process handle.
+ AutoHandle child_handle_;
+ // Event the child process uses to signal the parent that it has
+ // acquired the handle to the write end of the pipe. After seeing this
+ // event the parent can release its own handles to make sure its
+ // ReadFile() calls return when the child terminates.
+ AutoHandle event_handle_;
+};
+
+// Waits for the child in a death test to exit, returning its exit
+// status, or 0 if no child process exists. As a side effect, sets the
+// outcome data member.
+int WindowsDeathTest::Wait() {
+ if (!spawned())
+ return 0;
+
+ // Wait until the child either signals that it has acquired the write end
+ // of the pipe or it dies.
+ const HANDLE wait_handles[2] = { child_handle_.Get(), event_handle_.Get() };
+ switch (::WaitForMultipleObjects(2,
+ wait_handles,
+ FALSE, // Waits for any of the handles.
+ INFINITE)) {
+ case WAIT_OBJECT_0:
+ case WAIT_OBJECT_0 + 1:
+ break;
+ default:
+ GTEST_DEATH_TEST_CHECK_(false); // Should not get here.
+ }
+
+ // The child has acquired the write end of the pipe or exited.
+ // We release the handle on our side and continue.
+ write_handle_.Reset();
+ event_handle_.Reset();
+
+ ReadAndInterpretStatusByte();
+
+ // Waits for the child process to exit if it haven't already. This
+ // returns immediately if the child has already exited, regardless of
+ // whether previous calls to WaitForMultipleObjects synchronized on this
+ // handle or not.
+ GTEST_DEATH_TEST_CHECK_(
+ WAIT_OBJECT_0 == ::WaitForSingleObject(child_handle_.Get(),
+ INFINITE));
+ DWORD status_code;
+ GTEST_DEATH_TEST_CHECK_(
+ ::GetExitCodeProcess(child_handle_.Get(), &status_code) != FALSE);
+ child_handle_.Reset();
+ set_status(static_cast<int>(status_code));
+ return status();
+}
+
+// The AssumeRole process for a Windows death test. It creates a child
+// process with the same executable as the current process to run the
+// death test. The child process is given the --gtest_filter and
+// --gtest_internal_run_death_test flags such that it knows to run the
+// current death test only.
+DeathTest::TestRole WindowsDeathTest::AssumeRole() {
+ const UnitTestImpl* const impl = GetUnitTestImpl();
+ const InternalRunDeathTestFlag* const flag =
+ impl->internal_run_death_test_flag();
+ const TestInfo* const info = impl->current_test_info();
+ const int death_test_index = info->result()->death_test_count();
+
+ if (flag != NULL) {
+ // ParseInternalRunDeathTestFlag() has performed all the necessary
+ // processing.
+ set_write_fd(flag->write_fd());
+ return EXECUTE_TEST;
+ }
+
+ // WindowsDeathTest uses an anonymous pipe to communicate results of
+ // a death test.
+ SECURITY_ATTRIBUTES handles_are_inheritable = {
+ sizeof(SECURITY_ATTRIBUTES), NULL, TRUE };
+ HANDLE read_handle, write_handle;
+ GTEST_DEATH_TEST_CHECK_(
+ ::CreatePipe(&read_handle, &write_handle, &handles_are_inheritable,
+ 0) // Default buffer size.
+ != FALSE);
+ set_read_fd(::_open_osfhandle(reinterpret_cast<intptr_t>(read_handle),
+ O_RDONLY));
+ write_handle_.Reset(write_handle);
+ event_handle_.Reset(::CreateEvent(
+ &handles_are_inheritable,
+ TRUE, // The event will automatically reset to non-signaled state.
+ FALSE, // The initial state is non-signalled.
+ NULL)); // The even is unnamed.
+ GTEST_DEATH_TEST_CHECK_(event_handle_.Get() != NULL);
+ const String filter_flag = String::Format("--%s%s=%s.%s",
+ GTEST_FLAG_PREFIX_, kFilterFlag,
+ info->test_case_name(),
+ info->name());
+ const String internal_flag = String::Format(
+ "--%s%s=%s|%d|%d|%u|%Iu|%Iu",
+ GTEST_FLAG_PREFIX_,
+ kInternalRunDeathTestFlag,
+ file_, line_,
+ death_test_index,
+ static_cast<unsigned int>(::GetCurrentProcessId()),
+ // size_t has the same with as pointers on both 32-bit and 64-bit
+ // Windows platforms.
+ // See http://msdn.microsoft.com/en-us/library/tcxf1dw6.aspx.
+ reinterpret_cast<size_t>(write_handle),
+ reinterpret_cast<size_t>(event_handle_.Get()));
+
+ char executable_path[_MAX_PATH + 1]; // NOLINT
+ GTEST_DEATH_TEST_CHECK_(
+ _MAX_PATH + 1 != ::GetModuleFileNameA(NULL,
+ executable_path,
+ _MAX_PATH));
+
+ String command_line = String::Format("%s %s \"%s\"",
+ ::GetCommandLineA(),
+ filter_flag.c_str(),
+ internal_flag.c_str());
+
+ DeathTest::set_last_death_test_message("");
+
+ CaptureStderr();
+ // Flush the log buffers since the log streams are shared with the child.
+ FlushInfoLog();
+
+ // The child process will share the standard handles with the parent.
+ STARTUPINFOA startup_info;
+ memset(&startup_info, 0, sizeof(STARTUPINFO));
+ startup_info.dwFlags = STARTF_USESTDHANDLES;
+ startup_info.hStdInput = ::GetStdHandle(STD_INPUT_HANDLE);
+ startup_info.hStdOutput = ::GetStdHandle(STD_OUTPUT_HANDLE);
+ startup_info.hStdError = ::GetStdHandle(STD_ERROR_HANDLE);
+
+ PROCESS_INFORMATION process_info;
+ GTEST_DEATH_TEST_CHECK_(::CreateProcessA(
+ executable_path,
+ const_cast<char*>(command_line.c_str()),
+ NULL, // Retuned process handle is not inheritable.
+ NULL, // Retuned thread handle is not inheritable.
+ TRUE, // Child inherits all inheritable handles (for write_handle_).
+ 0x0, // Default creation flags.
+ NULL, // Inherit the parent's environment.
+ UnitTest::GetInstance()->original_working_dir(),
+ &startup_info,
+ &process_info) != FALSE);
+ child_handle_.Reset(process_info.hProcess);
+ ::CloseHandle(process_info.hThread);
+ set_spawned(true);
+ return OVERSEE_TEST;
+}
+# else // We are not on Windows.
+
+// ForkingDeathTest provides implementations for most of the abstract
+// methods of the DeathTest interface. Only the AssumeRole method is
+// left undefined.
+class ForkingDeathTest : public DeathTestImpl {
+ public:
+ ForkingDeathTest(const char* statement, const RE* regex);
+
+ // All of these virtual functions are inherited from DeathTest.
+ virtual int Wait();
+
+ protected:
+ void set_child_pid(pid_t child_pid) { child_pid_ = child_pid; }
+
+ private:
+ // PID of child process during death test; 0 in the child process itself.
+ pid_t child_pid_;
+};
+
+// Constructs a ForkingDeathTest.
+ForkingDeathTest::ForkingDeathTest(const char* a_statement, const RE* a_regex)
+ : DeathTestImpl(a_statement, a_regex),
+ child_pid_(-1) {}
+
+// Waits for the child in a death test to exit, returning its exit
+// status, or 0 if no child process exists. As a side effect, sets the
+// outcome data member.
+int ForkingDeathTest::Wait() {
+ if (!spawned())
+ return 0;
+
+ ReadAndInterpretStatusByte();
+
+ int status_value;
+ GTEST_DEATH_TEST_CHECK_SYSCALL_(waitpid(child_pid_, &status_value, 0));
+ set_status(status_value);
+ return status_value;
+}
+
+// A concrete death test class that forks, then immediately runs the test
+// in the child process.
+class NoExecDeathTest : public ForkingDeathTest {
+ public:
+ NoExecDeathTest(const char* a_statement, const RE* a_regex) :
+ ForkingDeathTest(a_statement, a_regex) { }
+ virtual TestRole AssumeRole();
+};
+
+// The AssumeRole process for a fork-and-run death test. It implements a
+// straightforward fork, with a simple pipe to transmit the status byte.
+DeathTest::TestRole NoExecDeathTest::AssumeRole() {
+ const size_t thread_count = GetThreadCount();
+ if (thread_count != 1) {
+ GTEST_LOG_(WARNING) << DeathTestThreadWarning(thread_count);
+ }
+
+ int pipe_fd[2];
+ GTEST_DEATH_TEST_CHECK_(pipe(pipe_fd) != -1);
+
+ DeathTest::set_last_death_test_message("");
+ CaptureStderr();
+ // When we fork the process below, the log file buffers are copied, but the
+ // file descriptors are shared. We flush all log files here so that closing
+ // the file descriptors in the child process doesn't throw off the
+ // synchronization between descriptors and buffers in the parent process.
+ // This is as close to the fork as possible to avoid a race condition in case
+ // there are multiple threads running before the death test, and another
+ // thread writes to the log file.
+ FlushInfoLog();
+
+ const pid_t child_pid = fork();
+ GTEST_DEATH_TEST_CHECK_(child_pid != -1);
+ set_child_pid(child_pid);
+ if (child_pid == 0) {
+ GTEST_DEATH_TEST_CHECK_SYSCALL_(close(pipe_fd[0]));
+ set_write_fd(pipe_fd[1]);
+ // Redirects all logging to stderr in the child process to prevent
+ // concurrent writes to the log files. We capture stderr in the parent
+ // process and append the child process' output to a log.
+ LogToStderr();
+ // Event forwarding to the listeners of event listener API mush be shut
+ // down in death test subprocesses.
+ GetUnitTestImpl()->listeners()->SuppressEventForwarding();
+ return EXECUTE_TEST;
+ } else {
+ GTEST_DEATH_TEST_CHECK_SYSCALL_(close(pipe_fd[1]));
+ set_read_fd(pipe_fd[0]);
+ set_spawned(true);
+ return OVERSEE_TEST;
+ }
+}
+
+// A concrete death test class that forks and re-executes the main
+// program from the beginning, with command-line flags set that cause
+// only this specific death test to be run.
+class ExecDeathTest : public ForkingDeathTest {
+ public:
+ ExecDeathTest(const char* a_statement, const RE* a_regex,
+ const char* file, int line) :
+ ForkingDeathTest(a_statement, a_regex), file_(file), line_(line) { }
+ virtual TestRole AssumeRole();
+ private:
+ // The name of the file in which the death test is located.
+ const char* const file_;
+ // The line number on which the death test is located.
+ const int line_;
+};
+
+// Utility class for accumulating command-line arguments.
+class Arguments {
+ public:
+ Arguments() {
+ args_.push_back(NULL);
+ }
+
+ ~Arguments() {
+ for (std::vector<char*>::iterator i = args_.begin(); i != args_.end();
+ ++i) {
+ free(*i);
+ }
+ }
+ void AddArgument(const char* argument) {
+ args_.insert(args_.end() - 1, posix::StrDup(argument));
+ }
+
+ template <typename Str>
+ void AddArguments(const ::std::vector<Str>& arguments) {
+ for (typename ::std::vector<Str>::const_iterator i = arguments.begin();
+ i != arguments.end();
+ ++i) {
+ args_.insert(args_.end() - 1, posix::StrDup(i->c_str()));
+ }
+ }
+ char* const* Argv() {
+ return &args_[0];
+ }
+ private:
+ std::vector<char*> args_;
+};
+
+// A struct that encompasses the arguments to the child process of a
+// threadsafe-style death test process.
+struct ExecDeathTestArgs {
+ char* const* argv; // Command-line arguments for the child's call to exec
+ int close_fd; // File descriptor to close; the read end of a pipe
+};
+
+# if GTEST_OS_MAC
+inline char** GetEnviron() {
+ // When Google Test is built as a framework on MacOS X, the environ variable
+ // is unavailable. Apple's documentation (man environ) recommends using
+ // _NSGetEnviron() instead.
+ return *_NSGetEnviron();
+}
+# else
+// Some POSIX platforms expect you to declare environ. extern "C" makes
+// it reside in the global namespace.
+extern "C" char** environ;
+inline char** GetEnviron() { return environ; }
+# endif // GTEST_OS_MAC
+
+// The main function for a threadsafe-style death test child process.
+// This function is called in a clone()-ed process and thus must avoid
+// any potentially unsafe operations like malloc or libc functions.
+static int ExecDeathTestChildMain(void* child_arg) {
+ ExecDeathTestArgs* const args = static_cast<ExecDeathTestArgs*>(child_arg);
+ GTEST_DEATH_TEST_CHECK_SYSCALL_(close(args->close_fd));
+
+ // We need to execute the test program in the same environment where
+ // it was originally invoked. Therefore we change to the original
+ // working directory first.
+ const char* const original_dir =
+ UnitTest::GetInstance()->original_working_dir();
+ // We can safely call chdir() as it's a direct system call.
+ if (chdir(original_dir) != 0) {
+ DeathTestAbort(String::Format("chdir(\"%s\") failed: %s",
+ original_dir,
+ GetLastErrnoDescription().c_str()));
+ return EXIT_FAILURE;
+ }
+
+ // We can safely call execve() as it's a direct system call. We
+ // cannot use execvp() as it's a libc function and thus potentially
+ // unsafe. Since execve() doesn't search the PATH, the user must
+ // invoke the test program via a valid path that contains at least
+ // one path separator.
+ execve(args->argv[0], args->argv, GetEnviron());
+ DeathTestAbort(String::Format("execve(%s, ...) in %s failed: %s",
+ args->argv[0],
+ original_dir,
+ GetLastErrnoDescription().c_str()));
+ return EXIT_FAILURE;
+}
+
+// Two utility routines that together determine the direction the stack
+// grows.
+// This could be accomplished more elegantly by a single recursive
+// function, but we want to guard against the unlikely possibility of
+// a smart compiler optimizing the recursion away.
+//
+// GTEST_NO_INLINE_ is required to prevent GCC 4.6 from inlining
+// StackLowerThanAddress into StackGrowsDown, which then doesn't give
+// correct answer.
+bool StackLowerThanAddress(const void* ptr) GTEST_NO_INLINE_;
+bool StackLowerThanAddress(const void* ptr) {
+ int dummy;
+ return &dummy < ptr;
+}
+
+bool StackGrowsDown() {
+ int dummy;
+ return StackLowerThanAddress(&dummy);
+}
+
+// A threadsafe implementation of fork(2) for threadsafe-style death tests
+// that uses clone(2). It dies with an error message if anything goes
+// wrong.
+static pid_t ExecDeathTestFork(char* const* argv, int close_fd) {
+ ExecDeathTestArgs args = { argv, close_fd };
+ pid_t child_pid = -1;
+
+# if GTEST_HAS_CLONE
+ const bool use_fork = GTEST_FLAG(death_test_use_fork);
+
+ if (!use_fork) {
+ static const bool stack_grows_down = StackGrowsDown();
+ const size_t stack_size = getpagesize();
+ // MMAP_ANONYMOUS is not defined on Mac, so we use MAP_ANON instead.
+ void* const stack = mmap(NULL, stack_size, PROT_READ | PROT_WRITE,
+ MAP_ANON | MAP_PRIVATE, -1, 0);
+ GTEST_DEATH_TEST_CHECK_(stack != MAP_FAILED);
+ void* const stack_top =
+ static_cast<char*>(stack) + (stack_grows_down ? stack_size : 0);
+
+ child_pid = clone(&ExecDeathTestChildMain, stack_top, SIGCHLD, &args);
+
+ GTEST_DEATH_TEST_CHECK_(munmap(stack, stack_size) != -1);
+ }
+# else
+ const bool use_fork = true;
+# endif // GTEST_HAS_CLONE
+
+ if (use_fork && (child_pid = fork()) == 0) {
+ ExecDeathTestChildMain(&args);
+ _exit(0);
+ }
+
+ GTEST_DEATH_TEST_CHECK_(child_pid != -1);
+ return child_pid;
+}
+
+// The AssumeRole process for a fork-and-exec death test. It re-executes the
+// main program from the beginning, setting the --gtest_filter
+// and --gtest_internal_run_death_test flags to cause only the current
+// death test to be re-run.
+DeathTest::TestRole ExecDeathTest::AssumeRole() {
+ const UnitTestImpl* const impl = GetUnitTestImpl();
+ const InternalRunDeathTestFlag* const flag =
+ impl->internal_run_death_test_flag();
+ const TestInfo* const info = impl->current_test_info();
+ const int death_test_index = info->result()->death_test_count();
+
+ if (flag != NULL) {
+ set_write_fd(flag->write_fd());
+ return EXECUTE_TEST;
+ }
+
+ int pipe_fd[2];
+ GTEST_DEATH_TEST_CHECK_(pipe(pipe_fd) != -1);
+ // Clear the close-on-exec flag on the write end of the pipe, lest
+ // it be closed when the child process does an exec:
+ GTEST_DEATH_TEST_CHECK_(fcntl(pipe_fd[1], F_SETFD, 0) != -1);
+
+ const String filter_flag =
+ String::Format("--%s%s=%s.%s",
+ GTEST_FLAG_PREFIX_, kFilterFlag,
+ info->test_case_name(), info->name());
+ const String internal_flag =
+ String::Format("--%s%s=%s|%d|%d|%d",
+ GTEST_FLAG_PREFIX_, kInternalRunDeathTestFlag,
+ file_, line_, death_test_index, pipe_fd[1]);
+ Arguments args;
+ args.AddArguments(GetArgvs());
+ args.AddArgument(filter_flag.c_str());
+ args.AddArgument(internal_flag.c_str());
+
+ DeathTest::set_last_death_test_message("");
+
+ CaptureStderr();
+ // See the comment in NoExecDeathTest::AssumeRole for why the next line
+ // is necessary.
+ FlushInfoLog();
+
+ const pid_t child_pid = ExecDeathTestFork(args.Argv(), pipe_fd[0]);
+ GTEST_DEATH_TEST_CHECK_SYSCALL_(close(pipe_fd[1]));
+ set_child_pid(child_pid);
+ set_read_fd(pipe_fd[0]);
+ set_spawned(true);
+ return OVERSEE_TEST;
+}
+
+# endif // !GTEST_OS_WINDOWS
+
+// Creates a concrete DeathTest-derived class that depends on the
+// --gtest_death_test_style flag, and sets the pointer pointed to
+// by the "test" argument to its address. If the test should be
+// skipped, sets that pointer to NULL. Returns true, unless the
+// flag is set to an invalid value.
+bool DefaultDeathTestFactory::Create(const char* statement, const RE* regex,
+ const char* file, int line,
+ DeathTest** test) {
+ UnitTestImpl* const impl = GetUnitTestImpl();
+ const InternalRunDeathTestFlag* const flag =
+ impl->internal_run_death_test_flag();
+ const int death_test_index = impl->current_test_info()
+ ->increment_death_test_count();
+
+ if (flag != NULL) {
+ if (death_test_index > flag->index()) {
+ DeathTest::set_last_death_test_message(String::Format(
+ "Death test count (%d) somehow exceeded expected maximum (%d)",
+ death_test_index, flag->index()));
+ return false;
+ }
+
+ if (!(flag->file() == file && flag->line() == line &&
+ flag->index() == death_test_index)) {
+ *test = NULL;
+ return true;
+ }
+ }
+
+# if GTEST_OS_WINDOWS
+
+ if (GTEST_FLAG(death_test_style) == "threadsafe" ||
+ GTEST_FLAG(death_test_style) == "fast") {
+ *test = new WindowsDeathTest(statement, regex, file, line);
+ }
+
+# else
+
+ if (GTEST_FLAG(death_test_style) == "threadsafe") {
+ *test = new ExecDeathTest(statement, regex, file, line);
+ } else if (GTEST_FLAG(death_test_style) == "fast") {
+ *test = new NoExecDeathTest(statement, regex);
+ }
+
+# endif // GTEST_OS_WINDOWS
+
+ else { // NOLINT - this is more readable than unbalanced brackets inside #if.
+ DeathTest::set_last_death_test_message(String::Format(
+ "Unknown death test style \"%s\" encountered",
+ GTEST_FLAG(death_test_style).c_str()));
+ return false;
+ }
+
+ return true;
+}
+
+// Splits a given string on a given delimiter, populating a given
+// vector with the fields. GTEST_HAS_DEATH_TEST implies that we have
+// ::std::string, so we can use it here.
+static void SplitString(const ::std::string& str, char delimiter,
+ ::std::vector< ::std::string>* dest) {
+ ::std::vector< ::std::string> parsed;
+ ::std::string::size_type pos = 0;
+ while (::testing::internal::AlwaysTrue()) {
+ const ::std::string::size_type colon = str.find(delimiter, pos);
+ if (colon == ::std::string::npos) {
+ parsed.push_back(str.substr(pos));
+ break;
+ } else {
+ parsed.push_back(str.substr(pos, colon - pos));
+ pos = colon + 1;
+ }
+ }
+ dest->swap(parsed);
+}
+
+# if GTEST_OS_WINDOWS
+// Recreates the pipe and event handles from the provided parameters,
+// signals the event, and returns a file descriptor wrapped around the pipe
+// handle. This function is called in the child process only.
+int GetStatusFileDescriptor(unsigned int parent_process_id,
+ size_t write_handle_as_size_t,
+ size_t event_handle_as_size_t) {
+ AutoHandle parent_process_handle(::OpenProcess(PROCESS_DUP_HANDLE,
+ FALSE, // Non-inheritable.
+ parent_process_id));
+ if (parent_process_handle.Get() == INVALID_HANDLE_VALUE) {
+ DeathTestAbort(String::Format("Unable to open parent process %u",
+ parent_process_id));
+ }
+
+ // TODO(vladl@google.com): Replace the following check with a
+ // compile-time assertion when available.
+ GTEST_CHECK_(sizeof(HANDLE) <= sizeof(size_t));
+
+ const HANDLE write_handle =
+ reinterpret_cast<HANDLE>(write_handle_as_size_t);
+ HANDLE dup_write_handle;
+
+ // The newly initialized handle is accessible only in in the parent
+ // process. To obtain one accessible within the child, we need to use
+ // DuplicateHandle.
+ if (!::DuplicateHandle(parent_process_handle.Get(), write_handle,
+ ::GetCurrentProcess(), &dup_write_handle,
+ 0x0, // Requested privileges ignored since
+ // DUPLICATE_SAME_ACCESS is used.
+ FALSE, // Request non-inheritable handler.
+ DUPLICATE_SAME_ACCESS)) {
+ DeathTestAbort(String::Format(
+ "Unable to duplicate the pipe handle %Iu from the parent process %u",
+ write_handle_as_size_t, parent_process_id));
+ }
+
+ const HANDLE event_handle = reinterpret_cast<HANDLE>(event_handle_as_size_t);
+ HANDLE dup_event_handle;
+
+ if (!::DuplicateHandle(parent_process_handle.Get(), event_handle,
+ ::GetCurrentProcess(), &dup_event_handle,
+ 0x0,
+ FALSE,
+ DUPLICATE_SAME_ACCESS)) {
+ DeathTestAbort(String::Format(
+ "Unable to duplicate the event handle %Iu from the parent process %u",
+ event_handle_as_size_t, parent_process_id));
+ }
+
+ const int write_fd =
+ ::_open_osfhandle(reinterpret_cast<intptr_t>(dup_write_handle), O_APPEND);
+ if (write_fd == -1) {
+ DeathTestAbort(String::Format(
+ "Unable to convert pipe handle %Iu to a file descriptor",
+ write_handle_as_size_t));
+ }
+
+ // Signals the parent that the write end of the pipe has been acquired
+ // so the parent can release its own write end.
+ ::SetEvent(dup_event_handle);
+
+ return write_fd;
+}
+# endif // GTEST_OS_WINDOWS
+
+// Returns a newly created InternalRunDeathTestFlag object with fields
+// initialized from the GTEST_FLAG(internal_run_death_test) flag if
+// the flag is specified; otherwise returns NULL.
+InternalRunDeathTestFlag* ParseInternalRunDeathTestFlag() {
+ if (GTEST_FLAG(internal_run_death_test) == "") return NULL;
+
+ // GTEST_HAS_DEATH_TEST implies that we have ::std::string, so we
+ // can use it here.
+ int line = -1;
+ int index = -1;
+ ::std::vector< ::std::string> fields;
+ SplitString(GTEST_FLAG(internal_run_death_test).c_str(), '|', &fields);
+ int write_fd = -1;
+
+# if GTEST_OS_WINDOWS
+
+ unsigned int parent_process_id = 0;
+ size_t write_handle_as_size_t = 0;
+ size_t event_handle_as_size_t = 0;
+
+ if (fields.size() != 6
+ || !ParseNaturalNumber(fields[1], &line)
+ || !ParseNaturalNumber(fields[2], &index)
+ || !ParseNaturalNumber(fields[3], &parent_process_id)
+ || !ParseNaturalNumber(fields[4], &write_handle_as_size_t)
+ || !ParseNaturalNumber(fields[5], &event_handle_as_size_t)) {
+ DeathTestAbort(String::Format(
+ "Bad --gtest_internal_run_death_test flag: %s",
+ GTEST_FLAG(internal_run_death_test).c_str()));
+ }
+ write_fd = GetStatusFileDescriptor(parent_process_id,
+ write_handle_as_size_t,
+ event_handle_as_size_t);
+# else
+
+ if (fields.size() != 4
+ || !ParseNaturalNumber(fields[1], &line)
+ || !ParseNaturalNumber(fields[2], &index)
+ || !ParseNaturalNumber(fields[3], &write_fd)) {
+ DeathTestAbort(String::Format(
+ "Bad --gtest_internal_run_death_test flag: %s",
+ GTEST_FLAG(internal_run_death_test).c_str()));
+ }
+
+# endif // GTEST_OS_WINDOWS
+
+ return new InternalRunDeathTestFlag(fields[0], line, index, write_fd);
+}
+
+} // namespace internal
+
+#endif // GTEST_HAS_DEATH_TEST
+
+} // namespace testing