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-rw-r--r--security/nss/gtests/google_test/gtest/src/gtest-death-test.cc341
1 files changed, 285 insertions, 56 deletions
diff --git a/security/nss/gtests/google_test/gtest/src/gtest-death-test.cc b/security/nss/gtests/google_test/gtest/src/gtest-death-test.cc
index a0a8c7baf..090835516 100644
--- a/security/nss/gtests/google_test/gtest/src/gtest-death-test.cc
+++ b/security/nss/gtests/google_test/gtest/src/gtest-death-test.cc
@@ -26,13 +26,13 @@
// 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"
+#include "gtest/internal/custom/gtest.h"
#if GTEST_HAS_DEATH_TEST
@@ -61,26 +61,30 @@
# include <spawn.h>
# endif // GTEST_OS_QNX
+# if GTEST_OS_FUCHSIA
+# include <lib/fdio/io.h>
+# include <lib/fdio/spawn.h>
+# include <zircon/processargs.h>
+# include <zircon/syscalls.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,
@@ -120,7 +124,9 @@ 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 && !GTEST_OS_FUCHSIA
static bool g_in_fast_death_test_child = false;
+# endif
// Returns a Boolean value indicating whether the caller is currently
// executing in the context of the death test child process. Tools such as
@@ -128,10 +134,10 @@ 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
@@ -151,7 +157,7 @@ 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_;
@@ -159,19 +165,27 @@ 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) {
}
// KilledBySignal function-call operator.
bool KilledBySignal::operator()(int exit_status) const {
+# if defined(GTEST_KILLED_BY_SIGNAL_OVERRIDE_)
+ {
+ bool result;
+ if (GTEST_KILLED_BY_SIGNAL_OVERRIDE_(signum_, exit_status, &result)) {
+ return result;
+ }
+ }
+# 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 {
@@ -182,7 +196,7 @@ 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;
@@ -198,7 +212,7 @@ 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();
}
@@ -209,7 +223,7 @@ 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
@@ -218,13 +232,19 @@ 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';
@@ -232,6 +252,13 @@ 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;
@@ -239,7 +266,7 @@ 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
+// FIXME: Unify names and possibly values for
// AbortReason, DeathTestOutcome, and flag characters above.
enum DeathTestOutcome { IN_PROGRESS, DIED, LIVED, RETURNED, THREW };
@@ -248,7 +275,7 @@ 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.
@@ -552,7 +579,12 @@ bool DeathTestImpl::Passed(bool status_ok) {
break;
case DIED:
if (status_ok) {
+# if GTEST_USES_PCRE
+ // PCRE regexes support embedded NULs.
+ const bool matched = RE::PartialMatch(error_message, *regex());
+# else
const bool matched = RE::PartialMatch(error_message.c_str(), *regex());
+# endif // GTEST_USES_PCRE
if (matched) {
success = true;
} else {
@@ -768,7 +800,200 @@ DeathTest::TestRole WindowsDeathTest::AssumeRole() {
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,
+ const RE* a_regex,
+ const char* file,
+ int line)
+ : DeathTestImpl(a_statement, a_regex), file_(file), line_(line) {}
+ virtual ~FuchsiaDeathTest() {
+ zx_status_t status = zx_handle_close(child_process_);
+ GTEST_DEATH_TEST_CHECK_(status == ZX_OK);
+ status = zx_handle_close(port_);
+ GTEST_DEATH_TEST_CHECK_(status == ZX_OK);
+ }
+
+ // 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_;
+
+ zx_handle_t child_process_ = ZX_HANDLE_INVALID;
+ zx_handle_t port_ = ZX_HANDLE_INVALID;
+};
+
+// 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];
+ }
+
+ 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() {
+ if (!spawned())
+ return 0;
+
+ // Register to wait for the child process to terminate.
+ zx_status_t status_zx;
+ status_zx = zx_object_wait_async(child_process_,
+ port_,
+ 0 /* key */,
+ ZX_PROCESS_TERMINATED,
+ ZX_WAIT_ASYNC_ONCE);
+ GTEST_DEATH_TEST_CHECK_(status_zx == ZX_OK);
+
+ // Wait for it to terminate, or an exception to be received.
+ zx_port_packet_t packet;
+ status_zx = zx_port_wait(port_, ZX_TIME_INFINITE, &packet);
+ GTEST_DEATH_TEST_CHECK_(status_zx == ZX_OK);
+
+ if (ZX_PKT_IS_EXCEPTION(packet.type)) {
+ // Process encountered an exception. Kill it directly rather than letting
+ // other handlers process the event.
+ status_zx = zx_task_kill(child_process_);
+ GTEST_DEATH_TEST_CHECK_(status_zx == ZX_OK);
+
+ // Now wait for |child_process_| to terminate.
+ zx_signals_t signals = 0;
+ status_zx = zx_object_wait_one(
+ child_process_, ZX_PROCESS_TERMINATED, ZX_TIME_INFINITE, &signals);
+ GTEST_DEATH_TEST_CHECK_(status_zx == ZX_OK);
+ GTEST_DEATH_TEST_CHECK_(signals & ZX_PROCESS_TERMINATED);
+ } else {
+ // Process terminated.
+ GTEST_DEATH_TEST_CHECK_(ZX_PKT_IS_SIGNAL_ONE(packet.type));
+ GTEST_DEATH_TEST_CHECK_(packet.signal.observed & ZX_PROCESS_TERMINATED);
+ }
+
+ ReadAndInterpretStatusByte();
+
+ zx_info_process_t buffer;
+ status_zx = zx_object_get_info(
+ child_process_,
+ 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 != NULL) {
+ // ParseInternalRunDeathTestFlag() has performed all the necessary
+ // processing.
+ set_write_fd(kFuchsiaReadPipeFd);
+ return EXECUTE_TEST;
+ }
+
+ CaptureStderr();
+ // 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_case_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;
+ uint32_t type;
+ status = fdio_pipe_half(&child_pipe_handle, &type);
+ GTEST_DEATH_TEST_CHECK_(status >= 0);
+ set_read_fd(status);
+
+ // Set the pipe handle for the child.
+ fdio_spawn_action_t add_handle_action = {};
+ add_handle_action.action = FDIO_SPAWN_ACTION_ADD_HANDLE;
+ add_handle_action.h.id = PA_HND(type, kFuchsiaReadPipeFd);
+ add_handle_action.h.handle = child_pipe_handle;
+
+ // Spawn the child process.
+ status = fdio_spawn_etc(ZX_HANDLE_INVALID, FDIO_SPAWN_CLONE_ALL,
+ args.Argv()[0], args.Argv(), nullptr, 1,
+ &add_handle_action, &child_process_, nullptr);
+ GTEST_DEATH_TEST_CHECK_(status == ZX_OK);
+
+ // Create an exception port and attach it to the |child_process_|, to allow
+ // us to suppress the system default exception handler from firing.
+ status = zx_port_create(0, &port_);
+ GTEST_DEATH_TEST_CHECK_(status == ZX_OK);
+ status = zx_task_bind_exception_port(
+ child_process_, port_, 0 /* key */, 0 /*options */);
+ GTEST_DEATH_TEST_CHECK_(status == ZX_OK);
+
+ set_spawned(true);
+ return OVERSEE_TEST;
+}
+
+#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
@@ -872,9 +1097,13 @@ class ExecDeathTest : public ForkingDeathTest {
ForkingDeathTest(a_statement, a_regex), file_(file), line_(line) { }
virtual TestRole AssumeRole();
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<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_)
return args;
}
// The name of the file in which the death test is located.
@@ -970,6 +1199,7 @@ 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
@@ -979,20 +1209,22 @@ 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_;
+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() {
+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
@@ -1184,6 +1416,13 @@ bool DefaultDeathTestFactory::Create(const char* statement, const RE* regex,
*test = new WindowsDeathTest(statement, regex, file, line);
}
+# elif GTEST_OS_FUCHSIA
+
+ if (GTEST_FLAG(death_test_style) == "threadsafe" ||
+ GTEST_FLAG(death_test_style) == "fast") {
+ *test = new FuchsiaDeathTest(statement, regex, file, line);
+ }
+
# else
if (GTEST_FLAG(death_test_style) == "threadsafe") {
@@ -1204,31 +1443,11 @@ bool DefaultDeathTestFactory::Create(const char* statement, const RE* regex,
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,
+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,
@@ -1239,7 +1458,7 @@ int GetStatusFileDescriptor(unsigned int parent_process_id,
StreamableToString(parent_process_id));
}
- // TODO(vladl@google.com): Replace the following check with a
+ // FIXME: Replace the following check with a
// compile-time assertion when available.
GTEST_CHECK_(sizeof(HANDLE) <= sizeof(size_t));
@@ -1247,7 +1466,7 @@ int GetStatusFileDescriptor(unsigned int parent_process_id,
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,
@@ -1324,6 +1543,16 @@ 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
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-20 14:06:08 +0000