diff options
Diffstat (limited to 'extern/gtest/src/gtest-death-test.cc')
| -rw-r--r-- | extern/gtest/src/gtest-death-test.cc | 567 |
1 files changed, 439 insertions, 128 deletions
diff --git a/extern/gtest/src/gtest-death-test.cc b/extern/gtest/src/gtest-death-test.cc index a01a3698308..da09a1cfc23 100644 --- a/extern/gtest/src/gtest-death-test.cc +++ b/extern/gtest/src/gtest-death-test.cc @@ -26,12 +26,14 @@ // 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 <utility> + #include "gtest/internal/gtest-port.h" #include "gtest/internal/custom/gtest.h" @@ -62,26 +64,36 @@ # include <spawn.h> # endif // GTEST_OS_QNX +# if GTEST_OS_FUCHSIA +# include <lib/fdio/fd.h> +# include <lib/fdio/io.h> +# include <lib/fdio/spawn.h> +# include <lib/zx/channel.h> +# include <lib/zx/port.h> +# include <lib/zx/process.h> +# include <lib/zx/socket.h> +# include <zircon/processargs.h> +# include <zircon/syscalls.h> +# include <zircon/syscalls/policy.h> +# include <zircon/syscalls/port.h> +# endif // GTEST_OS_FUCHSIA + #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 exists to -// prevent the accidental inclusion of gtest-internal-inl.h in the -// user's 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"; +// +// This is defined in internal/gtest-port.h as "fast", but can be overridden by +// a definition in internal/custom/gtest-port.h. The recommended value, which is +// used internally at Google, is "threadsafe". +static const char kDefaultDeathTestStyle[] = GTEST_DEFAULT_DEATH_TEST_STYLE; GTEST_DEFINE_string_( death_test_style, @@ -110,8 +122,8 @@ GTEST_DEFINE_string_( "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 " - "the '|' characters. This flag is specified if and only if the current " - "process is a sub-process launched for running a thread-safe " + "the '|' characters. 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 @@ -121,7 +133,7 @@ namespace internal { // Valid only for fast death tests. Indicates the code is running in the // child process of a fast style death test. -# if !GTEST_OS_WINDOWS +# if !GTEST_OS_WINDOWS && !GTEST_OS_FUCHSIA static bool g_in_fast_death_test_child = false; # endif @@ -131,10 +143,10 @@ static bool g_in_fast_death_test_child = false; // tests. IMPORTANT: This is an internal utility. Using it may break the // implementation of death tests. User code MUST NOT use it. bool InDeathTestChild() { -# if GTEST_OS_WINDOWS +# if GTEST_OS_WINDOWS || GTEST_OS_FUCHSIA - // On Windows, death tests are thread-safe regardless of the value of the - // death_test_style flag. + // On Windows and Fuchsia, death tests are thread-safe regardless of the value + // of the death_test_style flag. return !GTEST_FLAG(internal_run_death_test).empty(); # else @@ -154,7 +166,7 @@ ExitedWithCode::ExitedWithCode(int exit_code) : exit_code_(exit_code) { // ExitedWithCode function-call operator. bool ExitedWithCode::operator()(int exit_status) const { -# if GTEST_OS_WINDOWS +# if GTEST_OS_WINDOWS || GTEST_OS_FUCHSIA return exit_status == exit_code_; @@ -162,10 +174,10 @@ bool ExitedWithCode::operator()(int exit_status) const { return WIFEXITED(exit_status) && WEXITSTATUS(exit_status) == exit_code_; -# endif // GTEST_OS_WINDOWS +# endif // GTEST_OS_WINDOWS || GTEST_OS_FUCHSIA } -# if !GTEST_OS_WINDOWS +# if !GTEST_OS_WINDOWS && !GTEST_OS_FUCHSIA // KilledBySignal constructor. KilledBySignal::KilledBySignal(int signum) : signum_(signum) { } @@ -182,7 +194,7 @@ bool KilledBySignal::operator()(int exit_status) const { # endif // defined(GTEST_KILLED_BY_SIGNAL_OVERRIDE_) return WIFSIGNALED(exit_status) && WTERMSIG(exit_status) == signum_; } -# endif // !GTEST_OS_WINDOWS +# endif // !GTEST_OS_WINDOWS && !GTEST_OS_FUCHSIA namespace internal { @@ -193,7 +205,7 @@ namespace internal { static std::string ExitSummary(int exit_code) { Message m; -# if GTEST_OS_WINDOWS +# if GTEST_OS_WINDOWS || GTEST_OS_FUCHSIA m << "Exited with exit status " << exit_code; @@ -209,7 +221,7 @@ static std::string ExitSummary(int exit_code) { m << " (core dumped)"; } # endif -# endif // GTEST_OS_WINDOWS +# endif // GTEST_OS_WINDOWS || GTEST_OS_FUCHSIA return m.GetString(); } @@ -220,7 +232,7 @@ bool ExitedUnsuccessfully(int exit_status) { return !ExitedWithCode(0)(exit_status); } -# if !GTEST_OS_WINDOWS +# if !GTEST_OS_WINDOWS && !GTEST_OS_FUCHSIA // 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 @@ -229,13 +241,19 @@ static std::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) + if (thread_count == 0) { msg << "couldn't detect the number of threads."; - else + } else { msg << "detected " << thread_count << " threads."; + } + msg << " See " + "https://github.com/google/googletest/blob/master/googletest/docs/" + "advanced.md#death-tests-and-threads" + << " for more explanation and suggested solutions, especially if" + << " this is the last message you see before your test times out."; return msg.GetString(); } -# endif // !GTEST_OS_WINDOWS +# endif // !GTEST_OS_WINDOWS && !GTEST_OS_FUCHSIA // Flag characters for reporting a death test that did not die. static const char kDeathTestLived = 'L'; @@ -243,6 +261,13 @@ static const char kDeathTestReturned = 'R'; static const char kDeathTestThrew = 'T'; static const char kDeathTestInternalError = 'I'; +#if GTEST_OS_FUCHSIA + +// File descriptor used for the pipe in the child process. +static const int kFuchsiaReadPipeFd = 3; + +#endif + // 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; @@ -250,8 +275,6 @@ static const char kDeathTestInternalError = 'I'; // 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 @@ -259,13 +282,13 @@ enum DeathTestOutcome { IN_PROGRESS, DIED, LIVED, RETURNED, THREW }; // 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 std::string& message) { +static void DeathTestAbort(const std::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) { + if (flag != nullptr) { FILE* parent = posix::FDOpen(flag->write_fd(), "w"); fputc(kDeathTestInternalError, parent); fprintf(parent, "%s", message.c_str()); @@ -345,7 +368,7 @@ static void FailFromInternalError(int fd) { // for the current test. DeathTest::DeathTest() { TestInfo* const info = GetUnitTestImpl()->current_test_info(); - if (info == NULL) { + if (info == nullptr) { DeathTestAbort("Cannot run a death test outside of a TEST or " "TEST_F construct"); } @@ -353,10 +376,11 @@ DeathTest::DeathTest() { // 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) { +bool DeathTest::Create(const char* statement, + Matcher<const std::string&> matcher, const char* file, + int line, DeathTest** test) { return GetUnitTestImpl()->death_test_factory()->Create( - statement, regex, file, line, test); + statement, std::move(matcher), file, line, test); } const char* DeathTest::LastMessage() { @@ -372,9 +396,9 @@ std::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) + DeathTestImpl(const char* a_statement, Matcher<const std::string&> matcher) : statement_(a_statement), - regex_(a_regex), + matcher_(std::move(matcher)), spawned_(false), status_(-1), outcome_(IN_PROGRESS), @@ -382,13 +406,12 @@ class DeathTestImpl : public DeathTest { write_fd_(-1) {} // read_fd_ is expected to be closed and cleared by a derived class. - ~DeathTestImpl() { GTEST_DEATH_TEST_CHECK_(read_fd_ == -1); } + ~DeathTestImpl() override { GTEST_DEATH_TEST_CHECK_(read_fd_ == -1); } - void Abort(AbortReason reason); - virtual bool Passed(bool status_ok); + void Abort(AbortReason reason) override; + bool Passed(bool status_ok) override; 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_; } @@ -406,13 +429,15 @@ class DeathTestImpl : public DeathTest { // case of unexpected codes. void ReadAndInterpretStatusByte(); + // Returns stderr output from the child process. + virtual std::string GetErrorLogs(); + 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_; + // A matcher that's expected to match the stderr output by the child process. + Matcher<const std::string&> matcher_; // True if the death test child process has been successfully spawned. bool spawned_; // The exit status of the child process. @@ -474,6 +499,10 @@ void DeathTestImpl::ReadAndInterpretStatusByte() { set_read_fd(-1); } +std::string DeathTestImpl::GetErrorLogs() { + return GetCapturedStderr(); +} + // 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 @@ -527,22 +556,21 @@ static ::std::string FormatDeathTestOutput(const ::std::string& output) { // 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. +// matcher_: A matcher that's expected to match the stderr output by the child +// process. // // 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 +// Returns true if and only if 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 std::string error_message = GetCapturedStderr(); + const std::string error_message = GetErrorLogs(); bool success = false; Message buffer; @@ -563,13 +591,15 @@ bool DeathTestImpl::Passed(bool status_ok) { break; case DIED: if (status_ok) { - const bool matched = RE::PartialMatch(error_message.c_str(), *regex()); - if (matched) { + if (matcher_.Matches(error_message)) { success = true; } else { + std::ostringstream stream; + matcher_.DescribeTo(&stream); buffer << " Result: died but not with expected error.\n" - << " Expected: " << regex()->pattern() << "\n" - << "Actual msg:\n" << FormatDeathTestOutput(error_message); + << " Expected: " << stream.str() << "\n" + << "Actual msg:\n" + << FormatDeathTestOutput(error_message); } } else { buffer << " Result: died but not with expected exit code:\n" @@ -618,11 +648,11 @@ bool DeathTestImpl::Passed(bool status_ok) { // 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) {} + WindowsDeathTest(const char* a_statement, Matcher<const std::string&> matcher, + const char* file, int line) + : DeathTestImpl(a_statement, std::move(matcher)), + file_(file), + line_(line) {} // All of these virtual functions are inherited from DeathTest. virtual int Wait(); @@ -699,7 +729,7 @@ DeathTest::TestRole WindowsDeathTest::AssumeRole() { const TestInfo* const info = impl->current_test_info(); const int death_test_index = info->result()->death_test_count(); - if (flag != NULL) { + if (flag != nullptr) { // ParseInternalRunDeathTestFlag() has performed all the necessary // processing. set_write_fd(flag->write_fd()); @@ -708,8 +738,8 @@ DeathTest::TestRole WindowsDeathTest::AssumeRole() { // WindowsDeathTest uses an anonymous pipe to communicate results of // a death test. - SECURITY_ATTRIBUTES handles_are_inheritable = { - sizeof(SECURITY_ATTRIBUTES), NULL, TRUE }; + SECURITY_ATTRIBUTES handles_are_inheritable = {sizeof(SECURITY_ATTRIBUTES), + nullptr, TRUE}; HANDLE read_handle, write_handle; GTEST_DEATH_TEST_CHECK_( ::CreatePipe(&read_handle, &write_handle, &handles_are_inheritable, @@ -720,13 +750,13 @@ DeathTest::TestRole WindowsDeathTest::AssumeRole() { 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 std::string filter_flag = - std::string("--") + GTEST_FLAG_PREFIX_ + kFilterFlag + "=" + - info->test_case_name() + "." + info->name(); + TRUE, // The event will automatically reset to non-signaled state. + FALSE, // The initial state is non-signalled. + nullptr)); // The even is unnamed. + GTEST_DEATH_TEST_CHECK_(event_handle_.Get() != nullptr); + const std::string filter_flag = std::string("--") + GTEST_FLAG_PREFIX_ + + kFilterFlag + "=" + info->test_suite_name() + + "." + info->name(); const std::string internal_flag = std::string("--") + GTEST_FLAG_PREFIX_ + kInternalRunDeathTestFlag + "=" + file_ + "|" + StreamableToString(line_) + "|" + @@ -739,10 +769,9 @@ DeathTest::TestRole WindowsDeathTest::AssumeRole() { "|" + StreamableToString(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)); + GTEST_DEATH_TEST_CHECK_(_MAX_PATH + 1 != ::GetModuleFileNameA(nullptr, + executable_path, + _MAX_PATH)); std::string command_line = std::string(::GetCommandLineA()) + " " + filter_flag + " \"" + @@ -763,33 +792,290 @@ DeathTest::TestRole WindowsDeathTest::AssumeRole() { 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); + GTEST_DEATH_TEST_CHECK_( + ::CreateProcessA( + executable_path, const_cast<char*>(command_line.c_str()), + nullptr, // Retuned process handle is not inheritable. + nullptr, // Retuned thread handle is not inheritable. + TRUE, // Child inherits all inheritable handles (for write_handle_). + 0x0, // Default creation flags. + nullptr, // 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. + +# elif GTEST_OS_FUCHSIA + +class FuchsiaDeathTest : public DeathTestImpl { + public: + FuchsiaDeathTest(const char* a_statement, Matcher<const std::string&> matcher, + const char* file, int line) + : DeathTestImpl(a_statement, std::move(matcher)), + file_(file), + line_(line) {} + + // All of these virtual functions are inherited from DeathTest. + int Wait() override; + TestRole AssumeRole() override; + std::string GetErrorLogs() override; + + 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_; + // The stderr data captured by the child process. + std::string captured_stderr_; + + zx::process child_process_; + zx::channel exception_channel_; + zx::socket stderr_socket_; +}; + +// Utility class for accumulating command-line arguments. +class Arguments { + public: + Arguments() { args_.push_back(nullptr); } + + ~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]; + } + + int size() { + return args_.size() - 1; + } + + private: + std::vector<char*> args_; +}; + +// 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 FuchsiaDeathTest::Wait() { + const int kProcessKey = 0; + const int kSocketKey = 1; + const int kExceptionKey = 2; + + if (!spawned()) + return 0; + + // Create a port to wait for socket/task/exception events. + zx_status_t status_zx; + zx::port port; + status_zx = zx::port::create(0, &port); + GTEST_DEATH_TEST_CHECK_(status_zx == ZX_OK); + + // Register to wait for the child process to terminate. + status_zx = child_process_.wait_async( + port, kProcessKey, ZX_PROCESS_TERMINATED, ZX_WAIT_ASYNC_ONCE); + GTEST_DEATH_TEST_CHECK_(status_zx == ZX_OK); + + // Register to wait for the socket to be readable or closed. + status_zx = stderr_socket_.wait_async( + port, kSocketKey, ZX_SOCKET_READABLE | ZX_SOCKET_PEER_CLOSED, + ZX_WAIT_ASYNC_ONCE); + GTEST_DEATH_TEST_CHECK_(status_zx == ZX_OK); + + // Register to wait for an exception. + status_zx = exception_channel_.wait_async( + port, kExceptionKey, ZX_CHANNEL_READABLE, ZX_WAIT_ASYNC_ONCE); + GTEST_DEATH_TEST_CHECK_(status_zx == ZX_OK); + + bool process_terminated = false; + bool socket_closed = false; + do { + zx_port_packet_t packet = {}; + status_zx = port.wait(zx::time::infinite(), &packet); + GTEST_DEATH_TEST_CHECK_(status_zx == ZX_OK); + + if (packet.key == kExceptionKey) { + // Process encountered an exception. Kill it directly rather than + // letting other handlers process the event. We will get a kProcessKey + // event when the process actually terminates. + status_zx = child_process_.kill(); + GTEST_DEATH_TEST_CHECK_(status_zx == ZX_OK); + } else if (packet.key == kProcessKey) { + // Process terminated. + GTEST_DEATH_TEST_CHECK_(ZX_PKT_IS_SIGNAL_ONE(packet.type)); + GTEST_DEATH_TEST_CHECK_(packet.signal.observed & ZX_PROCESS_TERMINATED); + process_terminated = true; + } else if (packet.key == kSocketKey) { + GTEST_DEATH_TEST_CHECK_(ZX_PKT_IS_SIGNAL_ONE(packet.type)); + if (packet.signal.observed & ZX_SOCKET_READABLE) { + // Read data from the socket. + constexpr size_t kBufferSize = 1024; + do { + size_t old_length = captured_stderr_.length(); + size_t bytes_read = 0; + captured_stderr_.resize(old_length + kBufferSize); + status_zx = stderr_socket_.read( + 0, &captured_stderr_.front() + old_length, kBufferSize, + &bytes_read); + captured_stderr_.resize(old_length + bytes_read); + } while (status_zx == ZX_OK); + if (status_zx == ZX_ERR_PEER_CLOSED) { + socket_closed = true; + } else { + GTEST_DEATH_TEST_CHECK_(status_zx == ZX_ERR_SHOULD_WAIT); + status_zx = stderr_socket_.wait_async( + port, kSocketKey, ZX_SOCKET_READABLE | ZX_SOCKET_PEER_CLOSED, + ZX_WAIT_ASYNC_ONCE); + GTEST_DEATH_TEST_CHECK_(status_zx == ZX_OK); + } + } else { + GTEST_DEATH_TEST_CHECK_(packet.signal.observed & ZX_SOCKET_PEER_CLOSED); + socket_closed = true; + } + } + } while (!process_terminated && !socket_closed); + + ReadAndInterpretStatusByte(); + + zx_info_process_t buffer; + status_zx = child_process_.get_info( + ZX_INFO_PROCESS, &buffer, sizeof(buffer), nullptr, nullptr); + GTEST_DEATH_TEST_CHECK_(status_zx == ZX_OK); + + GTEST_DEATH_TEST_CHECK_(buffer.exited); + set_status(buffer.return_code); + return status(); +} + +// The AssumeRole process for a Fuchsia 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 FuchsiaDeathTest::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 != nullptr) { + // ParseInternalRunDeathTestFlag() has performed all the necessary + // processing. + set_write_fd(kFuchsiaReadPipeFd); + return EXECUTE_TEST; + } + + // Flush the log buffers since the log streams are shared with the child. + FlushInfoLog(); + + // Build the child process command line. + const std::string filter_flag = std::string("--") + GTEST_FLAG_PREFIX_ + + kFilterFlag + "=" + info->test_suite_name() + + "." + info->name(); + const std::string internal_flag = + std::string("--") + GTEST_FLAG_PREFIX_ + kInternalRunDeathTestFlag + "=" + + file_ + "|" + + StreamableToString(line_) + "|" + + StreamableToString(death_test_index); + Arguments args; + args.AddArguments(GetInjectableArgvs()); + args.AddArgument(filter_flag.c_str()); + args.AddArgument(internal_flag.c_str()); + + // Build the pipe for communication with the child. + zx_status_t status; + zx_handle_t child_pipe_handle; + int child_pipe_fd; + status = fdio_pipe_half(&child_pipe_fd, &child_pipe_handle); + GTEST_DEATH_TEST_CHECK_(status == ZX_OK); + set_read_fd(child_pipe_fd); + + // Set the pipe handle for the child. + fdio_spawn_action_t spawn_actions[2] = {}; + fdio_spawn_action_t* add_handle_action = &spawn_actions[0]; + add_handle_action->action = FDIO_SPAWN_ACTION_ADD_HANDLE; + add_handle_action->h.id = PA_HND(PA_FD, kFuchsiaReadPipeFd); + add_handle_action->h.handle = child_pipe_handle; + + // Create a socket pair will be used to receive the child process' stderr. + zx::socket stderr_producer_socket; + status = + zx::socket::create(0, &stderr_producer_socket, &stderr_socket_); + GTEST_DEATH_TEST_CHECK_(status >= 0); + int stderr_producer_fd = -1; + status = + fdio_fd_create(stderr_producer_socket.release(), &stderr_producer_fd); + GTEST_DEATH_TEST_CHECK_(status >= 0); + + // Make the stderr socket nonblocking. + GTEST_DEATH_TEST_CHECK_(fcntl(stderr_producer_fd, F_SETFL, 0) == 0); + + fdio_spawn_action_t* add_stderr_action = &spawn_actions[1]; + add_stderr_action->action = FDIO_SPAWN_ACTION_CLONE_FD; + add_stderr_action->fd.local_fd = stderr_producer_fd; + add_stderr_action->fd.target_fd = STDERR_FILENO; + + // Create a child job. + zx_handle_t child_job = ZX_HANDLE_INVALID; + status = zx_job_create(zx_job_default(), 0, & child_job); + GTEST_DEATH_TEST_CHECK_(status == ZX_OK); + zx_policy_basic_t policy; + policy.condition = ZX_POL_NEW_ANY; + policy.policy = ZX_POL_ACTION_ALLOW; + status = zx_job_set_policy( + child_job, ZX_JOB_POL_RELATIVE, ZX_JOB_POL_BASIC, &policy, 1); + GTEST_DEATH_TEST_CHECK_(status == ZX_OK); + + // Create an exception channel attached to the |child_job|, to allow + // us to suppress the system default exception handler from firing. + status = + zx_task_create_exception_channel( + child_job, 0, exception_channel_.reset_and_get_address()); + GTEST_DEATH_TEST_CHECK_(status == ZX_OK); + + // Spawn the child process. + status = fdio_spawn_etc( + child_job, FDIO_SPAWN_CLONE_ALL, args.Argv()[0], args.Argv(), nullptr, + 2, spawn_actions, child_process_.reset_and_get_address(), nullptr); + GTEST_DEATH_TEST_CHECK_(status == ZX_OK); + + set_spawned(true); + return OVERSEE_TEST; +} + +std::string FuchsiaDeathTest::GetErrorLogs() { + return captured_stderr_; +} + +#else // We are neither on Windows, nor on Fuchsia. // 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); + ForkingDeathTest(const char* statement, Matcher<const std::string&> matcher); // All of these virtual functions are inherited from DeathTest. - virtual int Wait(); + int Wait() override; protected: void set_child_pid(pid_t child_pid) { child_pid_ = child_pid; } @@ -800,9 +1086,9 @@ class ForkingDeathTest : public DeathTestImpl { }; // Constructs a ForkingDeathTest. -ForkingDeathTest::ForkingDeathTest(const char* a_statement, const RE* a_regex) - : DeathTestImpl(a_statement, a_regex), - child_pid_(-1) {} +ForkingDeathTest::ForkingDeathTest(const char* a_statement, + Matcher<const std::string&> matcher) + : DeathTestImpl(a_statement, std::move(matcher)), 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 @@ -823,9 +1109,9 @@ int ForkingDeathTest::Wait() { // 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(); + NoExecDeathTest(const char* a_statement, Matcher<const std::string&> matcher) + : ForkingDeathTest(a_statement, std::move(matcher)) {} + TestRole AssumeRole() override; }; // The AssumeRole process for a fork-and-run death test. It implements a @@ -878,16 +1164,18 @@ DeathTest::TestRole NoExecDeathTest::AssumeRole() { // 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(); + ExecDeathTest(const char* a_statement, Matcher<const std::string&> matcher, + const char* file, int line) + : ForkingDeathTest(a_statement, std::move(matcher)), + file_(file), + line_(line) {} + TestRole AssumeRole() override; + private: - static ::std::vector<testing::internal::string> - GetArgvsForDeathTestChildProcess() { - ::std::vector<testing::internal::string> args = GetInjectableArgvs(); + static ::std::vector<std::string> GetArgvsForDeathTestChildProcess() { + ::std::vector<std::string> args = GetInjectableArgvs(); # if defined(GTEST_EXTRA_DEATH_TEST_COMMAND_LINE_ARGS_) - ::std::vector<testing::internal::string> extra_args = + ::std::vector<std::string> extra_args = GTEST_EXTRA_DEATH_TEST_COMMAND_LINE_ARGS_(); args.insert(args.end(), extra_args.begin(), extra_args.end()); # endif // defined(GTEST_EXTRA_DEATH_TEST_COMMAND_LINE_ARGS_) @@ -902,9 +1190,7 @@ class ExecDeathTest : public ForkingDeathTest { // Utility class for accumulating command-line arguments. class Arguments { public: - Arguments() { - args_.push_back(NULL); - } + Arguments() { args_.push_back(nullptr); } ~Arguments() { for (std::vector<char*>::iterator i = args_.begin(); i != args_.end(); @@ -986,6 +1272,7 @@ static int ExecDeathTestChildMain(void* child_arg) { } # endif // !GTEST_OS_QNX +# if GTEST_HAS_CLONE // Two utility routines that together determine the direction the stack // grows. // This could be accomplished more elegantly by a single recursive @@ -995,20 +1282,26 @@ static int ExecDeathTestChildMain(void* child_arg) { // GTEST_NO_INLINE_ is required to prevent GCC 4.6 from inlining // StackLowerThanAddress into StackGrowsDown, which then doesn't give // correct answer. -void StackLowerThanAddress(const void* ptr, bool* result) GTEST_NO_INLINE_; -void StackLowerThanAddress(const void* ptr, bool* result) { +static void StackLowerThanAddress(const void* ptr, + bool* result) GTEST_NO_INLINE_; +// HWAddressSanitizer add a random tag to the MSB of the local variable address, +// making comparison result unpredictable. +GTEST_ATTRIBUTE_NO_SANITIZE_HWADDRESS_ +static void StackLowerThanAddress(const void* ptr, bool* result) { int dummy; *result = (&dummy < ptr); } // Make sure AddressSanitizer does not tamper with the stack here. GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_ -bool StackGrowsDown() { +GTEST_ATTRIBUTE_NO_SANITIZE_HWADDRESS_ +static bool StackGrowsDown() { int dummy; bool result; StackLowerThanAddress(&dummy, &result); return result; } +# endif // GTEST_HAS_CLONE // Spawns a child process with the same executable as the current process in // a thread-safe manner and instructs it to run the death test. The @@ -1046,7 +1339,8 @@ static pid_t ExecDeathTestSpawnChild(char* const* argv, int close_fd) { fd_flags | FD_CLOEXEC)); struct inheritance inherit = {0}; // spawn is a system call. - child_pid = spawn(args.argv[0], 0, NULL, &inherit, args.argv, GetEnviron()); + child_pid = + spawn(args.argv[0], 0, nullptr, &inherit, args.argv, GetEnviron()); // Restores the current working directory. GTEST_DEATH_TEST_CHECK_(fchdir(cwd_fd) != -1); GTEST_DEATH_TEST_CHECK_SYSCALL_(close(cwd_fd)); @@ -1070,9 +1364,9 @@ static pid_t ExecDeathTestSpawnChild(char* const* argv, int close_fd) { if (!use_fork) { static const bool stack_grows_down = StackGrowsDown(); - const size_t stack_size = getpagesize(); + const auto stack_size = static_cast<size_t>(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, + void* const stack = mmap(nullptr, stack_size, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0); GTEST_DEATH_TEST_CHECK_(stack != MAP_FAILED); @@ -1086,8 +1380,9 @@ static pid_t ExecDeathTestSpawnChild(char* const* argv, int close_fd) { void* const stack_top = static_cast<char*>(stack) + (stack_grows_down ? stack_size - kMaxStackAlignment : 0); - GTEST_DEATH_TEST_CHECK_(stack_size > kMaxStackAlignment && - reinterpret_cast<intptr_t>(stack_top) % kMaxStackAlignment == 0); + GTEST_DEATH_TEST_CHECK_( + static_cast<size_t>(stack_size) > kMaxStackAlignment && + reinterpret_cast<uintptr_t>(stack_top) % kMaxStackAlignment == 0); child_pid = clone(&ExecDeathTestChildMain, stack_top, SIGCHLD, &args); @@ -1104,7 +1399,7 @@ static pid_t ExecDeathTestSpawnChild(char* const* argv, int close_fd) { # endif // GTEST_OS_QNX # if GTEST_OS_LINUX GTEST_DEATH_TEST_CHECK_SYSCALL_( - sigaction(SIGPROF, &saved_sigprof_action, NULL)); + sigaction(SIGPROF, &saved_sigprof_action, nullptr)); # endif // GTEST_OS_LINUX GTEST_DEATH_TEST_CHECK_(child_pid != -1); @@ -1122,7 +1417,7 @@ DeathTest::TestRole ExecDeathTest::AssumeRole() { const TestInfo* const info = impl->current_test_info(); const int death_test_index = info->result()->death_test_count(); - if (flag != NULL) { + if (flag != nullptr) { set_write_fd(flag->write_fd()); return EXECUTE_TEST; } @@ -1133,9 +1428,9 @@ DeathTest::TestRole ExecDeathTest::AssumeRole() { // it be closed when the child process does an exec: GTEST_DEATH_TEST_CHECK_(fcntl(pipe_fd[1], F_SETFD, 0) != -1); - const std::string filter_flag = - std::string("--") + GTEST_FLAG_PREFIX_ + kFilterFlag + "=" - + info->test_case_name() + "." + info->name(); + const std::string filter_flag = std::string("--") + GTEST_FLAG_PREFIX_ + + kFilterFlag + "=" + info->test_suite_name() + + "." + info->name(); const std::string internal_flag = std::string("--") + GTEST_FLAG_PREFIX_ + kInternalRunDeathTestFlag + "=" + file_ + "|" + StreamableToString(line_) + "|" @@ -1168,7 +1463,8 @@ DeathTest::TestRole ExecDeathTest::AssumeRole() { // 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, +bool DefaultDeathTestFactory::Create(const char* statement, + Matcher<const std::string&> matcher, const char* file, int line, DeathTest** test) { UnitTestImpl* const impl = GetUnitTestImpl(); @@ -1177,7 +1473,7 @@ bool DefaultDeathTestFactory::Create(const char* statement, const RE* regex, const int death_test_index = impl->current_test_info() ->increment_death_test_count(); - if (flag != NULL) { + if (flag != nullptr) { if (death_test_index > flag->index()) { DeathTest::set_last_death_test_message( "Death test count (" + StreamableToString(death_test_index) @@ -1188,7 +1484,7 @@ bool DefaultDeathTestFactory::Create(const char* statement, const RE* regex, if (!(flag->file() == file && flag->line() == line && flag->index() == death_test_index)) { - *test = NULL; + *test = nullptr; return true; } } @@ -1197,15 +1493,22 @@ bool DefaultDeathTestFactory::Create(const char* statement, const RE* regex, if (GTEST_FLAG(death_test_style) == "threadsafe" || GTEST_FLAG(death_test_style) == "fast") { - *test = new WindowsDeathTest(statement, regex, file, line); + *test = new WindowsDeathTest(statement, std::move(matcher), file, line); + } + +# elif GTEST_OS_FUCHSIA + + if (GTEST_FLAG(death_test_style) == "threadsafe" || + GTEST_FLAG(death_test_style) == "fast") { + *test = new FuchsiaDeathTest(statement, std::move(matcher), file, line); } # else if (GTEST_FLAG(death_test_style) == "threadsafe") { - *test = new ExecDeathTest(statement, regex, file, line); + *test = new ExecDeathTest(statement, std::move(matcher), file, line); } else if (GTEST_FLAG(death_test_style) == "fast") { - *test = new NoExecDeathTest(statement, regex); + *test = new NoExecDeathTest(statement, std::move(matcher)); } # endif // GTEST_OS_WINDOWS @@ -1224,7 +1527,7 @@ bool DefaultDeathTestFactory::Create(const char* statement, const RE* regex, // 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, +static 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, @@ -1235,15 +1538,13 @@ int GetStatusFileDescriptor(unsigned int parent_process_id, StreamableToString(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 + // The newly initialized handle is accessible only in the parent // process. To obtain one accessible within the child, we need to use // DuplicateHandle. if (!::DuplicateHandle(parent_process_handle.Get(), write_handle, @@ -1292,7 +1593,7 @@ int GetStatusFileDescriptor(unsigned int parent_process_id, // 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; + if (GTEST_FLAG(internal_run_death_test) == "") return nullptr; // GTEST_HAS_DEATH_TEST implies that we have ::std::string, so we // can use it here. @@ -1320,6 +1621,16 @@ InternalRunDeathTestFlag* ParseInternalRunDeathTestFlag() { write_fd = GetStatusFileDescriptor(parent_process_id, write_handle_as_size_t, event_handle_as_size_t); + +# elif GTEST_OS_FUCHSIA + + if (fields.size() != 3 + || !ParseNaturalNumber(fields[1], &line) + || !ParseNaturalNumber(fields[2], &index)) { + DeathTestAbort("Bad --gtest_internal_run_death_test flag: " + + GTEST_FLAG(internal_run_death_test)); + } + # else if (fields.size() != 4 |