The Tor Browser: comparison media/webrtc/trunk/testing/gtest/src/gtest-internal-inl.h

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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.
+// Utility functions and classes used by the Google C++ testing framework.
+//
+// Author: wan@google.com (Zhanyong Wan)
+//
+// This file contains purely Google Test's internal implementation.  Please
+// DO NOT #INCLUDE IT IN A USER PROGRAM.
+#ifndef GTEST_SRC_GTEST_INTERNAL_INL_H_
+#define GTEST_SRC_GTEST_INTERNAL_INL_H_
+// GTEST_IMPLEMENTATION_ is defined to 1 iff the current translation unit is
+// part of Google Test's implementation; otherwise it's undefined.
+#if !GTEST_IMPLEMENTATION_
+// A user is trying to include this from his code - just say no.
+# error "gtest-internal-inl.h is part of Google Test's internal implementation."
+# error "It must not be included except by Google Test itself."
+#endif  // GTEST_IMPLEMENTATION_
+#ifndef _WIN32_WCE
+# include <errno.h>
+#endif  // !_WIN32_WCE
+#include <stddef.h>
+#include <stdlib.h>  // For strtoll/_strtoul64/malloc/free.
+#include <string.h>  // For memmove.
+#include <algorithm>
+#include <string>
+#include <vector>
+#include "gtest/internal/gtest-port.h"
+#if GTEST_OS_WINDOWS
+# include <windows.h>  // NOLINT
+#endif  // GTEST_OS_WINDOWS
+#include "gtest/gtest.h"  // NOLINT
+#include "gtest/gtest-spi.h"
+namespace testing {
+// Declares the flags.
+//
+// We don't want the users to modify this flag in the code, but want
+// Google Test's own unit tests to be able to access it. Therefore we
+// declare it here as opposed to in gtest.h.
+GTEST_DECLARE_bool_(death_test_use_fork);
+namespace internal {
+// The value of GetTestTypeId() as seen from within the Google Test
+// library.  This is solely for testing GetTestTypeId().
+GTEST_API_ extern const TypeId kTestTypeIdInGoogleTest;
+// Names of the flags (needed for parsing Google Test flags).
+const char kAlsoRunDisabledTestsFlag[] = "also_run_disabled_tests";
+const char kBreakOnFailureFlag[] = "break_on_failure";
+const char kCatchExceptionsFlag[] = "catch_exceptions";
+const char kColorFlag[] = "color";
+const char kFilterFlag[] = "filter";
+const char kListTestsFlag[] = "list_tests";
+const char kOutputFlag[] = "output";
+const char kPrintTimeFlag[] = "print_time";
+const char kRandomSeedFlag[] = "random_seed";
+const char kRepeatFlag[] = "repeat";
+const char kShuffleFlag[] = "shuffle";
+const char kStackTraceDepthFlag[] = "stack_trace_depth";
+const char kStreamResultToFlag[] = "stream_result_to";
+const char kThrowOnFailureFlag[] = "throw_on_failure";
+// A valid random seed must be in [1, kMaxRandomSeed].
+const int kMaxRandomSeed = 99999;
+// g_help_flag is true iff the --help flag or an equivalent form is
+// specified on the command line.
+GTEST_API_ extern bool g_help_flag;
+// Returns the current time in milliseconds.
+GTEST_API_ TimeInMillis GetTimeInMillis();
+// Returns true iff Google Test should use colors in the output.
+GTEST_API_ bool ShouldUseColor(bool stdout_is_tty);
+// Formats the given time in milliseconds as seconds.
+GTEST_API_ std::string FormatTimeInMillisAsSeconds(TimeInMillis ms);
+// Converts the given time in milliseconds to a date string in the ISO 8601
+// format, without the timezone information.  N.B.: due to the use the
+// non-reentrant localtime() function, this function is not thread safe.  Do
+// not use it in any code that can be called from multiple threads.
+GTEST_API_ std::string FormatEpochTimeInMillisAsIso8601(TimeInMillis ms);
+// Parses a string for an Int32 flag, in the form of "--flag=value".
+//
+// On success, stores the value of the flag in *value, and returns
+// true.  On failure, returns false without changing *value.
+GTEST_API_ bool ParseInt32Flag(
+const char* str, const char* flag, Int32* value);
+// Returns a random seed in range [1, kMaxRandomSeed] based on the
+// given --gtest_random_seed flag value.
+inline int GetRandomSeedFromFlag(Int32 random_seed_flag) {
+const unsigned int raw_seed = (random_seed_flag == 0) ?
+static_cast<unsigned int>(GetTimeInMillis()) :
+static_cast<unsigned int>(random_seed_flag);
+// Normalizes the actual seed to range [1, kMaxRandomSeed] such that
+// it's easy to type.
+const int normalized_seed =
+static_cast<int>((raw_seed - 1U) %
+static_cast<unsigned int>(kMaxRandomSeed)) + 1;
+return normalized_seed;
+}
+// Returns the first valid random seed after 'seed'.  The behavior is
+// undefined if 'seed' is invalid.  The seed after kMaxRandomSeed is
+// considered to be 1.
+inline int GetNextRandomSeed(int seed) {
+GTEST_CHECK_(1 <= seed && seed <= kMaxRandomSeed)
+<< "Invalid random seed " << seed << " - must be in [1, "
+<< kMaxRandomSeed << "].";
+const int next_seed = seed + 1;
+return (next_seed > kMaxRandomSeed) ? 1 : next_seed;
+}
+// This class saves the values of all Google Test flags in its c'tor, and
+// restores them in its d'tor.
+class GTestFlagSaver {
+public:
+// The c'tor.
+GTestFlagSaver() {
+also_run_disabled_tests_ = GTEST_FLAG(also_run_disabled_tests);
+break_on_failure_ = GTEST_FLAG(break_on_failure);
+catch_exceptions_ = GTEST_FLAG(catch_exceptions);
+color_ = GTEST_FLAG(color);
+death_test_style_ = GTEST_FLAG(death_test_style);
+death_test_use_fork_ = GTEST_FLAG(death_test_use_fork);
+filter_ = GTEST_FLAG(filter);
+internal_run_death_test_ = GTEST_FLAG(internal_run_death_test);
+list_tests_ = GTEST_FLAG(list_tests);
+output_ = GTEST_FLAG(output);
+print_time_ = GTEST_FLAG(print_time);
+random_seed_ = GTEST_FLAG(random_seed);
+repeat_ = GTEST_FLAG(repeat);
+shuffle_ = GTEST_FLAG(shuffle);
+stack_trace_depth_ = GTEST_FLAG(stack_trace_depth);
+stream_result_to_ = GTEST_FLAG(stream_result_to);
+throw_on_failure_ = GTEST_FLAG(throw_on_failure);
+}
+// The d'tor is not virtual.  DO NOT INHERIT FROM THIS CLASS.
+~GTestFlagSaver() {
+GTEST_FLAG(also_run_disabled_tests) = also_run_disabled_tests_;
+GTEST_FLAG(break_on_failure) = break_on_failure_;
+GTEST_FLAG(catch_exceptions) = catch_exceptions_;
+GTEST_FLAG(color) = color_;
+GTEST_FLAG(death_test_style) = death_test_style_;
+GTEST_FLAG(death_test_use_fork) = death_test_use_fork_;
+GTEST_FLAG(filter) = filter_;
+GTEST_FLAG(internal_run_death_test) = internal_run_death_test_;
+GTEST_FLAG(list_tests) = list_tests_;
+GTEST_FLAG(output) = output_;
+GTEST_FLAG(print_time) = print_time_;
+GTEST_FLAG(random_seed) = random_seed_;
+GTEST_FLAG(repeat) = repeat_;
+GTEST_FLAG(shuffle) = shuffle_;
+GTEST_FLAG(stack_trace_depth) = stack_trace_depth_;
+GTEST_FLAG(stream_result_to) = stream_result_to_;
+GTEST_FLAG(throw_on_failure) = throw_on_failure_;
+}
+private:
+// Fields for saving the original values of flags.
+bool also_run_disabled_tests_;
+bool break_on_failure_;
+bool catch_exceptions_;
+String color_;
+String death_test_style_;
+bool death_test_use_fork_;
+String filter_;
+String internal_run_death_test_;
+bool list_tests_;
+String output_;
+bool print_time_;
+bool pretty_;
+internal::Int32 random_seed_;
+internal::Int32 repeat_;
+bool shuffle_;
+internal::Int32 stack_trace_depth_;
+String stream_result_to_;
+bool throw_on_failure_;
+} GTEST_ATTRIBUTE_UNUSED_;
+// Converts a Unicode code point to a narrow string in UTF-8 encoding.
+// code_point parameter is of type UInt32 because wchar_t may not be
+// wide enough to contain a code point.
+// The output buffer str must containt at least 32 characters.
+// The function returns the address of the output buffer.
+// If the code_point is not a valid Unicode code point
+// (i.e. outside of Unicode range U+0 to U+10FFFF) it will be output
+// as '(Invalid Unicode 0xXXXXXXXX)'.
+GTEST_API_ char* CodePointToUtf8(UInt32 code_point, char* str);
+// Converts a wide string to a narrow string in UTF-8 encoding.
+// The wide string is assumed to have the following encoding:
+//   UTF-16 if sizeof(wchar_t) == 2 (on Windows, Cygwin, Symbian OS)
+//   UTF-32 if sizeof(wchar_t) == 4 (on Linux)
+// Parameter str points to a null-terminated wide string.
+// Parameter num_chars may additionally limit the number
+// of wchar_t characters processed. -1 is used when the entire string
+// should be processed.
+// If the string contains code points that are not valid Unicode code points
+// (i.e. outside of Unicode range U+0 to U+10FFFF) they will be output
+// as '(Invalid Unicode 0xXXXXXXXX)'. If the string is in UTF16 encoding
+// and contains invalid UTF-16 surrogate pairs, values in those pairs
+// will be encoded as individual Unicode characters from Basic Normal Plane.
+GTEST_API_ String WideStringToUtf8(const wchar_t* str, int num_chars);
+// Reads the GTEST_SHARD_STATUS_FILE environment variable, and creates the file
+// if the variable is present. If a file already exists at this location, this
+// function will write over it. If the variable is present, but the file cannot
+// be created, prints an error and exits.
+void WriteToShardStatusFileIfNeeded();
+// Checks whether sharding is enabled by examining the relevant
+// environment variable values. If the variables are present,
+// but inconsistent (e.g., shard_index >= total_shards), prints
+// an error and exits. If in_subprocess_for_death_test, sharding is
+// disabled because it must only be applied to the original test
+// process. Otherwise, we could filter out death tests we intended to execute.
+GTEST_API_ bool ShouldShard(const char* total_shards_str,
+const char* shard_index_str,
+bool in_subprocess_for_death_test);
+// Parses the environment variable var as an Int32. If it is unset,
+// returns default_val. If it is not an Int32, prints an error and
+// and aborts.
+GTEST_API_ Int32 Int32FromEnvOrDie(const char* env_var, Int32 default_val);
+// Given the total number of shards, the shard index, and the test id,
+// returns true iff the test should be run on this shard. The test id is
+// some arbitrary but unique non-negative integer assigned to each test
+// method. Assumes that 0 <= shard_index < total_shards.
+GTEST_API_ bool ShouldRunTestOnShard(
+int total_shards, int shard_index, int test_id);
+// STL container utilities.
+// Returns the number of elements in the given container that satisfy
+// the given predicate.
+template <class Container, typename Predicate>
+inline int CountIf(const Container& c, Predicate predicate) {
+// Implemented as an explicit loop since std::count_if() in libCstd on
+// Solaris has a non-standard signature.
+int count = 0;
+for (typename Container::const_iterator it = c.begin(); it != c.end(); ++it) {
+if (predicate(*it))
+++count;
+}
+return count;
+}
+// Applies a function/functor to each element in the container.
+template <class Container, typename Functor>
+void ForEach(const Container& c, Functor functor) {
+std::for_each(c.begin(), c.end(), functor);
+}
+// Returns the i-th element of the vector, or default_value if i is not
+// in range [0, v.size()).
+template <typename E>
+inline E GetElementOr(const std::vector<E>& v, int i, E default_value) {
+return (i < 0 || i >= static_cast<int>(v.size())) ? default_value : v[i];
+}
+// Performs an in-place shuffle of a range of the vector's elements.
+// 'begin' and 'end' are element indices as an STL-style range;
+// i.e. [begin, end) are shuffled, where 'end' == size() means to
+// shuffle to the end of the vector.
+template <typename E>
+void ShuffleRange(internal::Random* random, int begin, int end,
+std::vector<E>* v) {
+const int size = static_cast<int>(v->size());
+GTEST_CHECK_(0 <= begin && begin <= size)
+<< "Invalid shuffle range start " << begin << ": must be in range [0, "
+<< size << "].";
+GTEST_CHECK_(begin <= end && end <= size)
+<< "Invalid shuffle range finish " << end << ": must be in range ["
+<< begin << ", " << size << "].";
+// Fisher-Yates shuffle, from
+// http://en.wikipedia.org/wiki/Fisher-Yates_shuffle
+for (int range_width = end - begin; range_width >= 2; range_width--) {
+const int last_in_range = begin + range_width - 1;
+const int selected = begin + random->Generate(range_width);
+std::swap((*v)[selected], (*v)[last_in_range]);
+}
+}
+// Performs an in-place shuffle of the vector's elements.
+template <typename E>
+inline void Shuffle(internal::Random* random, std::vector<E>* v) {
+ShuffleRange(random, 0, static_cast<int>(v->size()), v);
+}
+// A function for deleting an object.  Handy for being used as a
+// functor.
+template <typename T>
+static void Delete(T* x) {
+delete x;
+}
+// A predicate that checks the key of a TestProperty against a known key.
+//
+// TestPropertyKeyIs is copyable.
+class TestPropertyKeyIs {
+public:
+// Constructor.
+//
+// TestPropertyKeyIs has NO default constructor.
+explicit TestPropertyKeyIs(const char* key)
+: key_(key) {}
+// Returns true iff the test name of test property matches on key_.
+bool operator()(const TestProperty& test_property) const {
+return String(test_property.key()).Compare(key_) == 0;
+}
+private:
+String key_;
+};
+// Class UnitTestOptions.
+//
+// This class contains functions for processing options the user
+// specifies when running the tests.  It has only static members.
+//
+// In most cases, the user can specify an option using either an
+// environment variable or a command line flag.  E.g. you can set the
+// test filter using either GTEST_FILTER or --gtest_filter.  If both
+// the variable and the flag are present, the latter overrides the
+// former.
+class GTEST_API_ UnitTestOptions {
+public:
+// Functions for processing the gtest_output flag.
+// Returns the output format, or "" for normal printed output.
+static String GetOutputFormat();
+// Returns the absolute path of the requested output file, or the
+// default (test_detail.xml in the original working directory) if
+// none was explicitly specified.
+static String GetAbsolutePathToOutputFile();
+// Functions for processing the gtest_filter flag.
+// Returns true iff the wildcard pattern matches the string.  The
+// first ':' or '\0' character in pattern marks the end of it.
+//
+// This recursive algorithm isn't very efficient, but is clear and
+// works well enough for matching test names, which are short.
+static bool PatternMatchesString(const char *pattern, const char *str);
+// Returns true iff the user-specified filter matches the test case
+// name and the test name.
+static bool FilterMatchesTest(const String &test_case_name,
+const String &test_name);
+#if GTEST_OS_WINDOWS
+// Function for supporting the gtest_catch_exception flag.
+// Returns EXCEPTION_EXECUTE_HANDLER if Google Test should handle the
+// given SEH exception, or EXCEPTION_CONTINUE_SEARCH otherwise.
+// This function is useful as an __except condition.
+static int GTestShouldProcessSEH(DWORD exception_code);
+#endif  // GTEST_OS_WINDOWS
+// Returns true if "name" matches the ':' separated list of glob-style
+// filters in "filter".
+static bool MatchesFilter(const String& name, const char* filter);
+};
+// Returns the current application's name, removing directory path if that
+// is present.  Used by UnitTestOptions::GetOutputFile.
+GTEST_API_ FilePath GetCurrentExecutableName();
+// The role interface for getting the OS stack trace as a string.
+class OsStackTraceGetterInterface {
+public:
+OsStackTraceGetterInterface() {}
+virtual ~OsStackTraceGetterInterface() {}
+// Returns the current OS stack trace as a String.  Parameters:
+//
+//   max_depth  - the maximum number of stack frames to be included
+//                in the trace.
+//   skip_count - the number of top frames to be skipped; doesn't count
+//                against max_depth.
+virtual String CurrentStackTrace(int max_depth, int skip_count) = 0;
+// UponLeavingGTest() should be called immediately before Google Test calls
+// user code. It saves some information about the current stack that
+// CurrentStackTrace() will use to find and hide Google Test stack frames.
+virtual void UponLeavingGTest() = 0;
+private:
+GTEST_DISALLOW_COPY_AND_ASSIGN_(OsStackTraceGetterInterface);
+};
+// A working implementation of the OsStackTraceGetterInterface interface.
+class OsStackTraceGetter : public OsStackTraceGetterInterface {
+public:
+OsStackTraceGetter() : caller_frame_(NULL) {}
+virtual String CurrentStackTrace(int max_depth, int skip_count)
+GTEST_LOCK_EXCLUDED_(mutex_);
+virtual void UponLeavingGTest() GTEST_LOCK_EXCLUDED_(mutex_);
+// This string is inserted in place of stack frames that are part of
+// Google Test's implementation.
+static const char* const kElidedFramesMarker;
+private:
+Mutex mutex_;  // protects all internal state
+// We save the stack frame below the frame that calls user code.
+// We do this because the address of the frame immediately below
+// the user code changes between the call to UponLeavingGTest()
+// and any calls to CurrentStackTrace() from within the user code.
+void* caller_frame_;
+GTEST_DISALLOW_COPY_AND_ASSIGN_(OsStackTraceGetter);
+};
+// Information about a Google Test trace point.
+struct TraceInfo {
+const char* file;
+int line;
+String message;
+};
+// This is the default global test part result reporter used in UnitTestImpl.
+// This class should only be used by UnitTestImpl.
+class DefaultGlobalTestPartResultReporter
+: public TestPartResultReporterInterface {
+public:
+explicit DefaultGlobalTestPartResultReporter(UnitTestImpl* unit_test);
+// Implements the TestPartResultReporterInterface. Reports the test part
+// result in the current test.
+virtual void ReportTestPartResult(const TestPartResult& result);
+private:
+UnitTestImpl* const unit_test_;
+GTEST_DISALLOW_COPY_AND_ASSIGN_(DefaultGlobalTestPartResultReporter);
+};
+// This is the default per thread test part result reporter used in
+// UnitTestImpl. This class should only be used by UnitTestImpl.
+class DefaultPerThreadTestPartResultReporter
+: public TestPartResultReporterInterface {
+public:
+explicit DefaultPerThreadTestPartResultReporter(UnitTestImpl* unit_test);
+// Implements the TestPartResultReporterInterface. The implementation just
+// delegates to the current global test part result reporter of *unit_test_.
+virtual void ReportTestPartResult(const TestPartResult& result);
+private:
+UnitTestImpl* const unit_test_;
+GTEST_DISALLOW_COPY_AND_ASSIGN_(DefaultPerThreadTestPartResultReporter);
+};
+// The private implementation of the UnitTest class.  We don't protect
+// the methods under a mutex, as this class is not accessible by a
+// user and the UnitTest class that delegates work to this class does
+// proper locking.
+class GTEST_API_ UnitTestImpl {
+public:
+explicit UnitTestImpl(UnitTest* parent);
+virtual ~UnitTestImpl();
+// There are two different ways to register your own TestPartResultReporter.
+// You can register your own repoter to listen either only for test results
+// from the current thread or for results from all threads.
+// By default, each per-thread test result repoter just passes a new
+// TestPartResult to the global test result reporter, which registers the
+// test part result for the currently running test.
+// Returns the global test part result reporter.
+TestPartResultReporterInterface* GetGlobalTestPartResultReporter();
+// Sets the global test part result reporter.
+void SetGlobalTestPartResultReporter(
+TestPartResultReporterInterface* reporter);
+// Returns the test part result reporter for the current thread.
+TestPartResultReporterInterface* GetTestPartResultReporterForCurrentThread();
+// Sets the test part result reporter for the current thread.
+void SetTestPartResultReporterForCurrentThread(
+TestPartResultReporterInterface* reporter);
+// Gets the number of successful test cases.
+int successful_test_case_count() const;
+// Gets the number of failed test cases.
+int failed_test_case_count() const;
+// Gets the number of all test cases.
+int total_test_case_count() const;
+// Gets the number of all test cases that contain at least one test
+// that should run.
+int test_case_to_run_count() const;
+// Gets the number of successful tests.
+int successful_test_count() const;
+// Gets the number of failed tests.
+int failed_test_count() const;
+// Gets the number of disabled tests.
+int disabled_test_count() const;
+// Gets the number of all tests.
+int total_test_count() const;
+// Gets the number of tests that should run.
+int test_to_run_count() const;
+// Gets the time of the test program start, in ms from the start of the
+// UNIX epoch.
+TimeInMillis start_timestamp() const { return start_timestamp_; }
+// Gets the elapsed time, in milliseconds.
+TimeInMillis elapsed_time() const { return elapsed_time_; }
+// Returns true iff the unit test passed (i.e. all test cases passed).
+bool Passed() const { return !Failed(); }
+// Returns true iff the unit test failed (i.e. some test case failed
+// or something outside of all tests failed).
+bool Failed() const {
+return failed_test_case_count() > 0 || ad_hoc_test_result()->Failed();
+}
+// Gets the i-th test case among all the test cases. i can range from 0 to
+// total_test_case_count() - 1. If i is not in that range, returns NULL.
+const TestCase* GetTestCase(int i) const {
+const int index = GetElementOr(test_case_indices_, i, -1);
+return index < 0 ? NULL : test_cases_[i];
+}
+// Gets the i-th test case among all the test cases. i can range from 0 to
+// total_test_case_count() - 1. If i is not in that range, returns NULL.
+TestCase* GetMutableTestCase(int i) {
+const int index = GetElementOr(test_case_indices_, i, -1);
+return index < 0 ? NULL : test_cases_[index];
+}
+// Provides access to the event listener list.
+TestEventListeners* listeners() { return &listeners_; }
+// Returns the TestResult for the test that's currently running, or
+// the TestResult for the ad hoc test if no test is running.
+TestResult* current_test_result();
+// Returns the TestResult for the ad hoc test.
+const TestResult* ad_hoc_test_result() const { return &ad_hoc_test_result_; }
+// Sets the OS stack trace getter.
+//
+// Does nothing if the input and the current OS stack trace getter
+// are the same; otherwise, deletes the old getter and makes the
+// input the current getter.
+void set_os_stack_trace_getter(OsStackTraceGetterInterface* getter);
+// Returns the current OS stack trace getter if it is not NULL;
+// otherwise, creates an OsStackTraceGetter, makes it the current
+// getter, and returns it.
+OsStackTraceGetterInterface* os_stack_trace_getter();
+// Returns the current OS stack trace as a String.
+//
+// The maximum number of stack frames to be included is specified by
+// the gtest_stack_trace_depth flag.  The skip_count parameter
+// specifies the number of top frames to be skipped, which doesn't
+// count against the number of frames to be included.
+//
+// For example, if Foo() calls Bar(), which in turn calls
+// CurrentOsStackTraceExceptTop(1), Foo() will be included in the
+// trace but Bar() and CurrentOsStackTraceExceptTop() won't.
+String CurrentOsStackTraceExceptTop(int skip_count) GTEST_NO_INLINE_;
+// Finds and returns a TestCase with the given name.  If one doesn't
+// exist, creates one and returns it.
+//
+// Arguments:
+//
+//   test_case_name: name of the test case
+//   type_param:     the name of the test's type parameter, or NULL if
+//                   this is not a typed or a type-parameterized test.
+//   set_up_tc:      pointer to the function that sets up the test case
+//   tear_down_tc:   pointer to the function that tears down the test case
+TestCase* GetTestCase(const char* test_case_name,
+const char* type_param,
+Test::SetUpTestCaseFunc set_up_tc,
+Test::TearDownTestCaseFunc tear_down_tc);
+// Adds a TestInfo to the unit test.
+//
+// Arguments:
+//
+//   set_up_tc:    pointer to the function that sets up the test case
+//   tear_down_tc: pointer to the function that tears down the test case
+//   test_info:    the TestInfo object
+void AddTestInfo(Test::SetUpTestCaseFunc set_up_tc,
+Test::TearDownTestCaseFunc tear_down_tc,
+TestInfo* test_info) {
+// In order to support thread-safe death tests, we need to
+// remember the original working directory when the test program
+// was first invoked.  We cannot do this in RUN_ALL_TESTS(), as
+// the user may have changed the current directory before calling
+// RUN_ALL_TESTS().  Therefore we capture the current directory in
+// AddTestInfo(), which is called to register a TEST or TEST_F
+// before main() is reached.
+if (original_working_dir_.IsEmpty()) {
+original_working_dir_.Set(FilePath::GetCurrentDir());
+GTEST_CHECK_(!original_working_dir_.IsEmpty())
+<< "Failed to get the current working directory.";
+}
+GetTestCase(test_info->test_case_name(),
+test_info->type_param(),
+set_up_tc,
+tear_down_tc)->AddTestInfo(test_info);
+}
+#if GTEST_HAS_PARAM_TEST
+// Returns ParameterizedTestCaseRegistry object used to keep track of
+// value-parameterized tests and instantiate and register them.
+internal::ParameterizedTestCaseRegistry& parameterized_test_registry() {
+return parameterized_test_registry_;
+}
+#endif  // GTEST_HAS_PARAM_TEST
+// Sets the TestCase object for the test that's currently running.
+void set_current_test_case(TestCase* a_current_test_case) {
+current_test_case_ = a_current_test_case;
+}
+// Sets the TestInfo object for the test that's currently running.  If
+// current_test_info is NULL, the assertion results will be stored in
+// ad_hoc_test_result_.
+void set_current_test_info(TestInfo* a_current_test_info) {
+current_test_info_ = a_current_test_info;
+}
+// Registers all parameterized tests defined using TEST_P and
+// INSTANTIATE_TEST_CASE_P, creating regular tests for each test/parameter
+// combination. This method can be called more then once; it has guards
+// protecting from registering the tests more then once.  If
+// value-parameterized tests are disabled, RegisterParameterizedTests is
+// present but does nothing.
+void RegisterParameterizedTests();
+// Runs all tests in this UnitTest object, prints the result, and
+// returns true if all tests are successful.  If any exception is
+// thrown during a test, this test is considered to be failed, but
+// the rest of the tests will still be run.
+bool RunAllTests();
+// Clears the results of all tests, except the ad hoc tests.
+void ClearNonAdHocTestResult() {
+ForEach(test_cases_, TestCase::ClearTestCaseResult);
+}
+// Clears the results of ad-hoc test assertions.
+void ClearAdHocTestResult() {
+ad_hoc_test_result_.Clear();
+}
+enum ReactionToSharding {
+HONOR_SHARDING_PROTOCOL,
+IGNORE_SHARDING_PROTOCOL
+};
+// Matches the full name of each test against the user-specified
+// filter to decide whether the test should run, then records the
+// result in each TestCase and TestInfo object.
+// If shard_tests == HONOR_SHARDING_PROTOCOL, further filters tests
+// based on sharding variables in the environment.
+// Returns the number of tests that should run.
+int FilterTests(ReactionToSharding shard_tests);
+// Prints the names of the tests matching the user-specified filter flag.
+void ListTestsMatchingFilter();
+const TestCase* current_test_case() const { return current_test_case_; }
+TestInfo* current_test_info() { return current_test_info_; }
+const TestInfo* current_test_info() const { return current_test_info_; }
+// Returns the vector of environments that need to be set-up/torn-down
+// before/after the tests are run.
+std::vector<Environment*>& environments() { return environments_; }
+// Getters for the per-thread Google Test trace stack.
+std::vector<TraceInfo>& gtest_trace_stack() {
+return *(gtest_trace_stack_.pointer());
+}
+const std::vector<TraceInfo>& gtest_trace_stack() const {
+return gtest_trace_stack_.get();
+}
+#if GTEST_HAS_DEATH_TEST
+void InitDeathTestSubprocessControlInfo() {
+internal_run_death_test_flag_.reset(ParseInternalRunDeathTestFlag());
+}
+// Returns a pointer to the parsed --gtest_internal_run_death_test
+// flag, or NULL if that flag was not specified.
+// This information is useful only in a death test child process.
+// Must not be called before a call to InitGoogleTest.
+const InternalRunDeathTestFlag* internal_run_death_test_flag() const {
+return internal_run_death_test_flag_.get();
+}
+// Returns a pointer to the current death test factory.
+internal::DeathTestFactory* death_test_factory() {
+return death_test_factory_.get();
+}
+void SuppressTestEventsIfInSubprocess();
+friend class ReplaceDeathTestFactory;
+#endif  // GTEST_HAS_DEATH_TEST
+// Initializes the event listener performing XML output as specified by
+// UnitTestOptions. Must not be called before InitGoogleTest.
+void ConfigureXmlOutput();
+#if GTEST_CAN_STREAM_RESULTS_
+// Initializes the event listener for streaming test results to a socket.
+// Must not be called before InitGoogleTest.
+void ConfigureStreamingOutput();
+#endif
+// Performs initialization dependent upon flag values obtained in
+// ParseGoogleTestFlagsOnly.  Is called from InitGoogleTest after the call to
+// ParseGoogleTestFlagsOnly.  In case a user neglects to call InitGoogleTest
+// this function is also called from RunAllTests.  Since this function can be
+// called more than once, it has to be idempotent.
+void PostFlagParsingInit();
+// Gets the random seed used at the start of the current test iteration.
+int random_seed() const { return random_seed_; }
+// Gets the random number generator.
+internal::Random* random() { return &random_; }
+// Shuffles all test cases, and the tests within each test case,
+// making sure that death tests are still run first.
+void ShuffleTests();
+// Restores the test cases and tests to their order before the first shuffle.
+void UnshuffleTests();
+// Returns the value of GTEST_FLAG(catch_exceptions) at the moment
+// UnitTest::Run() starts.
+bool catch_exceptions() const { return catch_exceptions_; }
+private:
+friend class ::testing::UnitTest;
+// Used by UnitTest::Run() to capture the state of
+// GTEST_FLAG(catch_exceptions) at the moment it starts.
+void set_catch_exceptions(bool value) { catch_exceptions_ = value; }
+// The UnitTest object that owns this implementation object.
+UnitTest* const parent_;
+// The working directory when the first TEST() or TEST_F() was
+// executed.
+internal::FilePath original_working_dir_;
+// The default test part result reporters.
+DefaultGlobalTestPartResultReporter default_global_test_part_result_reporter_;
+DefaultPerThreadTestPartResultReporter
+default_per_thread_test_part_result_reporter_;
+// Points to (but doesn't own) the global test part result reporter.
+TestPartResultReporterInterface* global_test_part_result_repoter_;
+// Protects read and write access to global_test_part_result_reporter_.
+internal::Mutex global_test_part_result_reporter_mutex_;
+// Points to (but doesn't own) the per-thread test part result reporter.
+internal::ThreadLocal<TestPartResultReporterInterface*>
+per_thread_test_part_result_reporter_;
+// The vector of environments that need to be set-up/torn-down
+// before/after the tests are run.
+std::vector<Environment*> environments_;
+// The vector of TestCases in their original order.  It owns the
+// elements in the vector.
+std::vector<TestCase*> test_cases_;
+// Provides a level of indirection for the test case list to allow
+// easy shuffling and restoring the test case order.  The i-th
+// element of this vector is the index of the i-th test case in the
+// shuffled order.
+std::vector<int> test_case_indices_;
+#if GTEST_HAS_PARAM_TEST
+// ParameterizedTestRegistry object used to register value-parameterized
+// tests.
+internal::ParameterizedTestCaseRegistry parameterized_test_registry_;
+// Indicates whether RegisterParameterizedTests() has been called already.
+bool parameterized_tests_registered_;
+#endif  // GTEST_HAS_PARAM_TEST
+// Index of the last death test case registered.  Initially -1.
+int last_death_test_case_;
+// This points to the TestCase for the currently running test.  It
+// changes as Google Test goes through one test case after another.
+// When no test is running, this is set to NULL and Google Test
+// stores assertion results in ad_hoc_test_result_.  Initially NULL.
+TestCase* current_test_case_;
+// This points to the TestInfo for the currently running test.  It
+// changes as Google Test goes through one test after another.  When
+// no test is running, this is set to NULL and Google Test stores
+// assertion results in ad_hoc_test_result_.  Initially NULL.
+TestInfo* current_test_info_;
+// Normally, a user only writes assertions inside a TEST or TEST_F,
+// or inside a function called by a TEST or TEST_F.  Since Google
+// Test keeps track of which test is current running, it can
+// associate such an assertion with the test it belongs to.
+//
+// If an assertion is encountered when no TEST or TEST_F is running,
+// Google Test attributes the assertion result to an imaginary "ad hoc"
+// test, and records the result in ad_hoc_test_result_.
+TestResult ad_hoc_test_result_;
+// The list of event listeners that can be used to track events inside
+// Google Test.
+TestEventListeners listeners_;
+// The OS stack trace getter.  Will be deleted when the UnitTest
+// object is destructed.  By default, an OsStackTraceGetter is used,
+// but the user can set this field to use a custom getter if that is
+// desired.
+OsStackTraceGetterInterface* os_stack_trace_getter_;
+// True iff PostFlagParsingInit() has been called.
+bool post_flag_parse_init_performed_;
+// The random number seed used at the beginning of the test run.
+int random_seed_;
+// Our random number generator.
+internal::Random random_;
+// The time of the test program start, in ms from the start of the
+// UNIX epoch.
+TimeInMillis start_timestamp_;
+// How long the test took to run, in milliseconds.
+TimeInMillis elapsed_time_;
+#if GTEST_HAS_DEATH_TEST
+// The decomposed components of the gtest_internal_run_death_test flag,
+// parsed when RUN_ALL_TESTS is called.
+internal::scoped_ptr<InternalRunDeathTestFlag> internal_run_death_test_flag_;
+internal::scoped_ptr<internal::DeathTestFactory> death_test_factory_;
+#endif  // GTEST_HAS_DEATH_TEST
+// A per-thread stack of traces created by the SCOPED_TRACE() macro.
+internal::ThreadLocal<std::vector<TraceInfo> > gtest_trace_stack_;
+// The value of GTEST_FLAG(catch_exceptions) at the moment RunAllTests()
+// starts.
+bool catch_exceptions_;
+GTEST_DISALLOW_COPY_AND_ASSIGN_(UnitTestImpl);
+};  // class UnitTestImpl
+// Convenience function for accessing the global UnitTest
+// implementation object.
+inline UnitTestImpl* GetUnitTestImpl() {
+return UnitTest::GetInstance()->impl();
+}
+#if GTEST_USES_SIMPLE_RE
+// Internal helper functions for implementing the simple regular
+// expression matcher.
+GTEST_API_ bool IsInSet(char ch, const char* str);
+GTEST_API_ bool IsAsciiDigit(char ch);
+GTEST_API_ bool IsAsciiPunct(char ch);
+GTEST_API_ bool IsRepeat(char ch);
+GTEST_API_ bool IsAsciiWhiteSpace(char ch);
+GTEST_API_ bool IsAsciiWordChar(char ch);
+GTEST_API_ bool IsValidEscape(char ch);
+GTEST_API_ bool AtomMatchesChar(bool escaped, char pattern, char ch);
+GTEST_API_ bool ValidateRegex(const char* regex);
+GTEST_API_ bool MatchRegexAtHead(const char* regex, const char* str);
+GTEST_API_ bool MatchRepetitionAndRegexAtHead(
+bool escaped, char ch, char repeat, const char* regex, const char* str);
+GTEST_API_ bool MatchRegexAnywhere(const char* regex, const char* str);
+#endif  // GTEST_USES_SIMPLE_RE
+// Parses the command line for Google Test flags, without initializing
+// other parts of Google Test.
+GTEST_API_ void ParseGoogleTestFlagsOnly(int* argc, char** argv);
+GTEST_API_ void ParseGoogleTestFlagsOnly(int* argc, wchar_t** argv);
+#if GTEST_HAS_DEATH_TEST
+// Returns the message describing the last system error, regardless of the
+// platform.
+GTEST_API_ String GetLastErrnoDescription();
+# if GTEST_OS_WINDOWS
+// Provides leak-safe Windows kernel handle ownership.
+class AutoHandle {
+public:
+AutoHandle() : handle_(INVALID_HANDLE_VALUE) {}
+explicit AutoHandle(HANDLE handle) : handle_(handle) {}
+~AutoHandle() { Reset(); }
+HANDLE Get() const { return handle_; }
+void Reset() { Reset(INVALID_HANDLE_VALUE); }
+void Reset(HANDLE handle) {
+if (handle != handle_) {
+if (handle_ != INVALID_HANDLE_VALUE)
+::CloseHandle(handle_);
+handle_ = handle;
+}
+}
+private:
+HANDLE handle_;
+GTEST_DISALLOW_COPY_AND_ASSIGN_(AutoHandle);
+};
+# endif  // GTEST_OS_WINDOWS
+// Attempts to parse a string into a positive integer pointed to by the
+// number parameter.  Returns true if that is possible.
+// GTEST_HAS_DEATH_TEST implies that we have ::std::string, so we can use
+// it here.
+template <typename Integer>
+bool ParseNaturalNumber(const ::std::string& str, Integer* number) {
+// Fail fast if the given string does not begin with a digit;
+// this bypasses strtoXXX's "optional leading whitespace and plus
+// or minus sign" semantics, which are undesirable here.
+if (str.empty() || !IsDigit(str[0])) {
+return false;
+}
+errno = 0;
+char* end;
+// BiggestConvertible is the largest integer type that system-provided
+// string-to-number conversion routines can return.
+# if GTEST_OS_WINDOWS && !defined(__GNUC__)
+// MSVC and C++ Builder define __int64 instead of the standard long long.
+typedef unsigned __int64 BiggestConvertible;
+const BiggestConvertible parsed = _strtoui64(str.c_str(), &end, 10);
+# else
+typedef unsigned long long BiggestConvertible;  // NOLINT
+const BiggestConvertible parsed = strtoull(str.c_str(), &end, 10);
+# endif  // GTEST_OS_WINDOWS && !defined(__GNUC__)
+const bool parse_success = *end == '\0' && errno == 0;
+// TODO(vladl@google.com): Convert this to compile time assertion when it is
+// available.
+GTEST_CHECK_(sizeof(Integer) <= sizeof(parsed));
+const Integer result = static_cast<Integer>(parsed);
+if (parse_success && static_cast<BiggestConvertible>(result) == parsed) {
+*number = result;
+return true;
+}
+return false;
+}
+#endif  // GTEST_HAS_DEATH_TEST
+// TestResult contains some private methods that should be hidden from
+// Google Test user but are required for testing. This class allow our tests
+// to access them.
+//
+// This class is supplied only for the purpose of testing Google Test's own
+// constructs. Do not use it in user tests, either directly or indirectly.
+class TestResultAccessor {
+public:
+static void RecordProperty(TestResult* test_result,
+const TestProperty& property) {
+test_result->RecordProperty(property);
+}
+static void ClearTestPartResults(TestResult* test_result) {
+test_result->ClearTestPartResults();
+}
+static const std::vector<testing::TestPartResult>& test_part_results(
+const TestResult& test_result) {
+return test_result.test_part_results();
+}
+};
+}  // namespace internal
+}  // namespace testing
+#endif  // GTEST_SRC_GTEST_INTERNAL_INL_H_

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