Merge gtest-1.3.0.

OSX users: make sure that CrashReporter is disabled when running unit tests.
Death tests are enabled now so you'll get a ton of message boxes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105352 91177308-0d34-0410-b5e6-96231b3b80d8

14 files changed, 533 insertions, 162 deletions

diff --git a/utils/unittest/googletest/include/gtest/gtest-death-test.h b/utils/unittest/googletest/include/gtest/gtest-death-test.h
index f0e109a3a3..dcb2b66e5c 100644
--- a/utils/unittest/googletest/include/gtest/gtest-death-test.h
+++ b/utils/unittest/googletest/include/gtest/gtest-death-test.h
@@ -49,7 +49,7 @@ namespace testing {
 // after forking.
 GTEST_DECLARE_string_(death_test_style);
 
-#ifdef GTEST_HAS_DEATH_TEST
+#if GTEST_HAS_DEATH_TEST
 
 // The following macros are useful for writing death tests.
 
@@ -86,6 +86,57 @@ GTEST_DECLARE_string_(death_test_style);
 //
 //   ASSERT_EXIT(client.HangUpServer(), KilledBySIGHUP, "Hanging up!");
 //
+// On the regular expressions used in death tests:
+//
+//   On POSIX-compliant systems (*nix), we use the <regex.h> library,
+//   which uses the POSIX extended regex syntax.
+//
+//   On other platforms (e.g. Windows), we only support a simple regex
+//   syntax implemented as part of Google Test.  This limited
+//   implementation should be enough most of the time when writing
+//   death tests; though it lacks many features you can find in PCRE
+//   or POSIX extended regex syntax.  For example, we don't support
+//   union ("x|y"), grouping ("(xy)"), brackets ("[xy]"), and
+//   repetition count ("x{5,7}"), among others.
+//
+//   Below is the syntax that we do support.  We chose it to be a
+//   subset of both PCRE and POSIX extended regex, so it's easy to
+//   learn wherever you come from.  In the following: 'A' denotes a
+//   literal character, period (.), or a single \\ escape sequence;
+//   'x' and 'y' denote regular expressions; 'm' and 'n' are for
+//   natural numbers.
+//
+//     c     matches any literal character c
+//     \\d   matches any decimal digit
+//     \\D   matches any character that's not a decimal digit
+//     \\f   matches \f
+//     \\n   matches \n
+//     \\r   matches \r
+//     \\s   matches any ASCII whitespace, including \n
+//     \\S   matches any character that's not a whitespace
+//     \\t   matches \t
+//     \\v   matches \v
+//     \\w   matches any letter, _, or decimal digit
+//     \\W   matches any character that \\w doesn't match
+//     \\c   matches any literal character c, which must be a punctuation
+//     .     matches any single character except \n
+//     A?    matches 0 or 1 occurrences of A
+//     A*    matches 0 or many occurrences of A
+//     A+    matches 1 or many occurrences of A
+//     ^     matches the beginning of a string (not that of each line)
+//     $     matches the end of a string (not that of each line)
+//     xy    matches x followed by y
+//
+//   If you accidentally use PCRE or POSIX extended regex features
+//   not implemented by us, you will get a run-time failure.  In that
+//   case, please try to rewrite your regular expression within the
+//   above syntax.
+//
+//   This implementation is *not* meant to be as highly tuned or robust
+//   as a compiled regex library, but should perform well enough for a
+//   death test, which already incurs significant overhead by launching
+//   a child process.
+//
 // Known caveats:
 //
 //   A "threadsafe" style death test obtains the path to the test
@@ -133,6 +184,7 @@ class ExitedWithCode {
   const int exit_code_;
 };
 
+#if !GTEST_OS_WINDOWS
 // Tests that an exit code describes an exit due to termination by a
 // given signal.
 class KilledBySignal {
@@ -142,6 +194,7 @@ class KilledBySignal {
  private:
   const int signum_;
 };
+#endif  // !GTEST_OS_WINDOWS
 
 // EXPECT_DEBUG_DEATH asserts that the given statements die in debug mode.
 // The death testing framework causes this to have interesting semantics,
diff --git a/utils/unittest/googletest/include/gtest/gtest-message.h b/utils/unittest/googletest/include/gtest/gtest-message.h
index 7effd08647..99ae4546a2 100644
--- a/utils/unittest/googletest/include/gtest/gtest-message.h
+++ b/utils/unittest/googletest/include/gtest/gtest-message.h
@@ -102,7 +102,7 @@ class Message {
   }
 
   ~Message() { delete ss_; }
-#ifdef GTEST_OS_SYMBIAN
+#if GTEST_OS_SYMBIAN
   // Streams a value (either a pointer or not) to this object.
   template <typename T>
   inline Message& operator <<(const T& value) {
@@ -187,7 +187,7 @@ class Message {
   }
 
  private:
-#ifdef GTEST_OS_SYMBIAN
+#if GTEST_OS_SYMBIAN
   // These are needed as the Nokia Symbian Compiler cannot decide between
   // const T& and const T* in a function template. The Nokia compiler _can_
   // decide between class template specializations for T and T*, so a
diff --git a/utils/unittest/googletest/include/gtest/gtest-param-test.h b/utils/unittest/googletest/include/gtest/gtest-param-test.h
index 0cf05dc7ed..c9d4f2455a 100644
--- a/utils/unittest/googletest/include/gtest/gtest-param-test.h
+++ b/utils/unittest/googletest/include/gtest/gtest-param-test.h
@@ -151,7 +151,7 @@ INSTANTIATE_TEST_CASE_P(AnotherInstantiationName, FooTest, ValuesIn(pets));
 
 #include <gtest/internal/gtest-port.h>
 
-#ifdef GTEST_HAS_PARAM_TEST
+#if GTEST_HAS_PARAM_TEST
 
 #include <gtest/internal/gtest-internal.h>
 #include <gtest/internal/gtest-param-util.h>
@@ -1190,7 +1190,7 @@ inline internal::ParamGenerator<bool> Bool() {
   return Values(false, true);
 }
 
-#ifdef GTEST_HAS_COMBINE
+#if GTEST_HAS_COMBINE
 // Combine() allows the user to combine two or more sequences to produce
 // values of a Cartesian product of those sequences' elements.
 //
diff --git a/utils/unittest/googletest/include/gtest/gtest-typed-test.h b/utils/unittest/googletest/include/gtest/gtest-typed-test.h
index dec42cf470..519edfe920 100644
--- a/utils/unittest/googletest/include/gtest/gtest-typed-test.h
+++ b/utils/unittest/googletest/include/gtest/gtest-typed-test.h
@@ -151,7 +151,7 @@ INSTANTIATE_TYPED_TEST_CASE_P(My, FooTest, MyTypes);
 
 // Implements typed tests.
 
-#ifdef GTEST_HAS_TYPED_TEST
+#if GTEST_HAS_TYPED_TEST
 
 // INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
 //
@@ -186,7 +186,7 @@ INSTANTIATE_TYPED_TEST_CASE_P(My, FooTest, MyTypes);
 
 // Implements type-parameterized tests.
 
-#ifdef GTEST_HAS_TYPED_TEST_P
+#if GTEST_HAS_TYPED_TEST_P
 
 // INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
 //
diff --git a/utils/unittest/googletest/include/gtest/gtest.h b/utils/unittest/googletest/include/gtest/gtest.h
index ebd3123b04..9b72b63692 100644
--- a/utils/unittest/googletest/include/gtest/gtest.h
+++ b/utils/unittest/googletest/include/gtest/gtest.h
@@ -93,17 +93,59 @@
 
 namespace testing {
 
-// The upper limit for valid stack trace depths.
-const int kMaxStackTraceDepth = 100;
+// Declares the flags.
 
-// This flag specifies the maximum number of stack frames to be
-// printed in a failure message.
-GTEST_DECLARE_int32_(stack_trace_depth);
+// This flag temporary enables the disabled tests.
+GTEST_DECLARE_bool_(also_run_disabled_tests);
+
+// This flag brings the debugger on an assertion failure.
+GTEST_DECLARE_bool_(break_on_failure);
+
+// This flag controls whether Google Test catches all test-thrown exceptions
+// and logs them as failures.
+GTEST_DECLARE_bool_(catch_exceptions);
+
+// This flag enables using colors in terminal output. Available values are
+// "yes" to enable colors, "no" (disable colors), or "auto" (the default)
+// to let Google Test decide.
+GTEST_DECLARE_string_(color);
+
+// This flag sets up the filter to select by name using a glob pattern
+// the tests to run. If the filter is not given all tests are executed.
+GTEST_DECLARE_string_(filter);
+
+// This flag causes the Google Test to list tests. None of the tests listed
+// are actually run if the flag is provided.
+GTEST_DECLARE_bool_(list_tests);
+
+// This flag controls whether Google Test emits a detailed XML report to a file
+// in addition to its normal textual output.
+GTEST_DECLARE_string_(output);
+
+// This flags control whether Google Test prints the elapsed time for each
+// test.
+GTEST_DECLARE_bool_(print_time);
+
+// This flag sets how many times the tests are repeated. The default value
+// is 1. If the value is -1 the tests are repeating forever.
+GTEST_DECLARE_int32_(repeat);
 
 // This flag controls whether Google Test includes Google Test internal
 // stack frames in failure stack traces.
 GTEST_DECLARE_bool_(show_internal_stack_frames);
 
+// This flag specifies the maximum number of stack frames to be
+// printed in a failure message.
+GTEST_DECLARE_int32_(stack_trace_depth);
+
+// When this flag is specified, a failed assertion will throw an
+// exception if exceptions are enabled, or exit the program with a
+// non-zero code otherwise.
+GTEST_DECLARE_bool_(throw_on_failure);
+
+// The upper limit for valid stack trace depths.
+const int kMaxStackTraceDepth = 100;
+
 namespace internal {
 
 class GTestFlagSaver;
@@ -353,7 +395,7 @@ class TestInfo {
   // Returns the result of the test.
   const internal::TestResult* result() const;
  private:
-#ifdef GTEST_HAS_DEATH_TEST
+#if GTEST_HAS_DEATH_TEST
   friend class internal::DefaultDeathTestFactory;
 #endif  // GTEST_HAS_DEATH_TEST
   friend class internal::TestInfoImpl;
@@ -484,7 +526,7 @@ class UnitTest {
   // or NULL if no test is running.
   const TestInfo* current_test_info() const;
 
-#ifdef GTEST_HAS_PARAM_TEST
+#if GTEST_HAS_PARAM_TEST
   // Returns the ParameterizedTestCaseRegistry object used to keep track of
   // value-parameterized tests and instantiate and register them.
   internal::ParameterizedTestCaseRegistry& parameterized_test_registry();
@@ -614,10 +656,20 @@ AssertionResult CmpHelperEQ(const char* expected_expression,
                             const char* actual_expression,
                             const T1& expected,
                             const T2& actual) {
+#ifdef _MSC_VER
+#pragma warning(push)          // Saves the current warning state.
+#pragma warning(disable:4389)  // Temporarily disables warning on
+                               // signed/unsigned mismatch.
+#endif
+
   if (expected == actual) {
     return AssertionSuccess();
   }
 
+#ifdef _MSC_VER
+#pragma warning(pop)          // Restores the warning state.
+#endif
+
   return EqFailure(expected_expression,
                    actual_expression,
                    FormatForComparisonFailureMessage(expected, actual),
@@ -688,7 +740,7 @@ class EqHelper<true> {
   template <typename T1, typename T2>
   static AssertionResult Compare(const char* expected_expression,
                                  const char* actual_expression,
-                                 const T1& expected,
+                                 const T1& /* expected */,
                                  T2* actual) {
     // We already know that 'expected' is a null pointer.
     return CmpHelperEQ(expected_expression, actual_expression,
@@ -893,7 +945,7 @@ class AssertHelper {
 
 }  // namespace internal
 
-#ifdef GTEST_HAS_PARAM_TEST
+#if GTEST_HAS_PARAM_TEST
 // The abstract base class that all value-parameterized tests inherit from.
 //
 // This class adds support for accessing the test parameter value via
@@ -1187,7 +1239,7 @@ AssertionResult DoubleLE(const char* expr1, const char* expr2,
                          double val1, double val2);
 
 
-#ifdef GTEST_OS_WINDOWS
+#if GTEST_OS_WINDOWS
 
 // Macros that test for HRESULT failure and success, these are only useful
 // on Windows, and rely on Windows SDK macros and APIs to compile.
@@ -1242,6 +1294,52 @@ AssertionResult DoubleLE(const char* expr1, const char* expr2,
   ::testing::internal::ScopedTrace GTEST_CONCAT_TOKEN_(gtest_trace_, __LINE__)(\
     __FILE__, __LINE__, ::testing::Message() << (message))
 
+namespace internal {
+
+// This template is declared, but intentionally undefined.
+template <typename T1, typename T2>
+struct StaticAssertTypeEqHelper;
+
+template <typename T>
+struct StaticAssertTypeEqHelper<T, T> {};
+
+}  // namespace internal
+
+// Compile-time assertion for type equality.
+// StaticAssertTypeEq<type1, type2>() compiles iff type1 and type2 are
+// the same type.  The value it returns is not interesting.
+//
+// Instead of making StaticAssertTypeEq a class template, we make it a
+// function template that invokes a helper class template.  This
+// prevents a user from misusing StaticAssertTypeEq<T1, T2> by
+// defining objects of that type.
+//
+// CAVEAT:
+//
+// When used inside a method of a class template,
+// StaticAssertTypeEq<T1, T2>() is effective ONLY IF the method is
+// instantiated.  For example, given:
+//
+//   template <typename T> class Foo {
+//    public:
+//     void Bar() { testing::StaticAssertTypeEq<int, T>(); }
+//   };
+//
+// the code:
+//
+//   void Test1() { Foo<bool> foo; }
+//
+// will NOT generate a compiler error, as Foo<bool>::Bar() is never
+// actually instantiated.  Instead, you need:
+//
+//   void Test2() { Foo<bool> foo; foo.Bar(); }
+//
+// to cause a compiler error.
+template <typename T1, typename T2>
+bool StaticAssertTypeEq() {
+  internal::StaticAssertTypeEqHelper<T1, T2>();
+  return true;
+}
 
 // Defines a test.
 //
@@ -1269,7 +1367,7 @@ AssertionResult DoubleLE(const char* expr1, const char* expr2,
 // value, as it always calls GetTypeId<>() from the Google Test
 // framework.
 #define TEST(test_case_name, test_name)\
-  GTEST_TEST_(test_case_name, test_name,\
+  GTEST_TEST_(test_case_name, test_name, \
               ::testing::Test, ::testing::internal::GetTestTypeId())
 
 
@@ -1300,7 +1398,7 @@ AssertionResult DoubleLE(const char* expr1, const char* expr2,
 //   }
 
 #define TEST_F(test_fixture, test_name)\
-  GTEST_TEST_(test_fixture, test_name, test_fixture,\
+  GTEST_TEST_(test_fixture, test_name, test_fixture, \
               ::testing::internal::GetTypeId<test_fixture>())
 
 // Use this macro in main() to run all tests.  It returns 0 if all
diff --git a/utils/unittest/googletest/include/gtest/internal/gtest-death-test-internal.h b/utils/unittest/googletest/include/gtest/internal/gtest-death-test-internal.h
index 0769fcaa0e..ff2e490efe 100644
--- a/utils/unittest/googletest/include/gtest/internal/gtest-death-test-internal.h
+++ b/utils/unittest/googletest/include/gtest/internal/gtest-death-test-internal.h
@@ -39,6 +39,10 @@
 
 #include <gtest/internal/gtest-internal.h>
 
+#if GTEST_HAS_DEATH_TEST && GTEST_OS_WINDOWS
+#include <io.h>
+#endif  // GTEST_HAS_DEATH_TEST && GTEST_OS_WINDOWS
+
 namespace testing {
 namespace internal {
 
@@ -46,9 +50,10 @@ GTEST_DECLARE_string_(internal_run_death_test);
 
 // Names of the flags (needed for parsing Google Test flags).
 const char kDeathTestStyleFlag[] = "death_test_style";
+const char kDeathTestUseFork[] = "death_test_use_fork";
 const char kInternalRunDeathTestFlag[] = "internal_run_death_test";
 
-#ifdef GTEST_HAS_DEATH_TEST
+#if GTEST_HAS_DEATH_TEST
 
 // DeathTest is a class that hides much of the complexity of the
 // GTEST_DEATH_TEST_ macro.  It is abstract; its static Create method
@@ -120,7 +125,12 @@ class DeathTest {
   // the last death test.
   static const char* LastMessage();
 
+  static void set_last_death_test_message(const String& message);
+
  private:
+  // A string containing a description of the outcome of the last death test.
+  static String last_death_test_message_;
+
   GTEST_DISALLOW_COPY_AND_ASSIGN_(DeathTest);
 };
 
@@ -166,7 +176,7 @@ bool ExitedUnsuccessfully(int exit_status);
         case ::testing::internal::DeathTest::EXECUTE_TEST: { \
           ::testing::internal::DeathTest::ReturnSentinel \
               gtest_sentinel(gtest_dt); \
-          { statement; } \
+          GTEST_HIDE_UNREACHABLE_CODE_(statement); \
           gtest_dt->Abort(::testing::internal::DeathTest::TEST_DID_NOT_DIE); \
           break; \
         } \
@@ -178,14 +188,42 @@ bool ExitedUnsuccessfully(int exit_status);
 // The symbol "fail" here expands to something into which a message
 // can be streamed.
 
-// A struct representing the parsed contents of the
+// A class representing the parsed contents of the
 // --gtest_internal_run_death_test flag, as it existed when
 // RUN_ALL_TESTS was called.
-struct InternalRunDeathTestFlag {
-  String file;
-  int line;
-  int index;
-  int status_fd;
+class InternalRunDeathTestFlag {
+ public:
+  InternalRunDeathTestFlag(const String& file,
+                           int line,
+                           int index,
+                           int status_fd)
+      : file_(file), line_(line), index_(index), status_fd_(status_fd) {}
+
+  ~InternalRunDeathTestFlag() {
+    if (status_fd_ >= 0)
+// Suppress MSVC complaints about POSIX functions.
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable: 4996)
+#endif  // _MSC_VER
+      close(status_fd_);
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif  // _MSC_VER
+  }
+
+  String file() const { return file_; }
+  int line() const { return line_; }
+  int index() const { return index_; }
+  int status_fd() const { return status_fd_; }
+
+ private:
+  String file_;
+  int line_;
+  int index_;
+  int status_fd_;
+
+  GTEST_DISALLOW_COPY_AND_ASSIGN_(InternalRunDeathTestFlag);
 };
 
 // Returns a newly created InternalRunDeathTestFlag object with fields
diff --git a/utils/unittest/googletest/include/gtest/internal/gtest-filepath.h b/utils/unittest/googletest/include/gtest/internal/gtest-filepath.h
index 9a0682af8b..1b2f586937 100644
--- a/utils/unittest/googletest/include/gtest/internal/gtest-filepath.h
+++ b/utils/unittest/googletest/include/gtest/internal/gtest-filepath.h
@@ -34,7 +34,7 @@
 // This header file declares classes and functions used internally by
 // Google Test.  They are subject to change without notice.
 //
-// This file is #included in testing/base/internal/gtest-internal.h
+// This file is #included in <gtest/internal/gtest-internal.h>.
 // Do not include this header file separately!
 
 #ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_FILEPATH_H_
@@ -93,6 +93,12 @@ class FilePath {
                                int number,
                                const char* extension);
 
+  // Given directory = "dir", relative_path = "test.xml",
+  // returns "dir/test.xml".
+  // On Windows, uses \ as the separator rather than /.
+  static FilePath ConcatPaths(const FilePath& directory,
+                              const FilePath& relative_path);
+
   // Returns a pathname for a file that does not currently exist. The pathname
   // will be directory/base_name.extension or
   // directory/base_name_<number>.extension if directory/base_name.extension
@@ -164,6 +170,9 @@ class FilePath {
   // root directory per disk drive.)
   bool IsRootDirectory() const;
 
+  // Returns true if pathname describes an absolute path.
+  bool IsAbsolutePath() const;
+
  private:
   // Replaces multiple consecutive separators with a single separator.
   // For example, "bar///foo" becomes "bar/foo". Does not eliminate other
diff --git a/utils/unittest/googletest/include/gtest/internal/gtest-internal-inl.h b/utils/unittest/googletest/include/gtest/internal/gtest-internal-inl.h
index b8f67c1865..d079a3e1f3 100644
--- a/utils/unittest/googletest/include/gtest/internal/gtest-internal-inl.h
+++ b/utils/unittest/googletest/include/gtest/internal/gtest-internal-inl.h
@@ -37,20 +37,24 @@
 #ifndef GTEST_SRC_GTEST_INTERNAL_INL_H_
 #define GTEST_SRC_GTEST_INTERNAL_INL_H_
 
-// GTEST_IMPLEMENTATION is defined iff the current translation unit is
-// part of Google Test's implementation.
-#ifndef GTEST_IMPLEMENTATION
+// 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
+#endif  // GTEST_IMPLEMENTATION_
 
+#include <errno.h>
 #include <stddef.h>
+#include <stdlib.h>   // For strtoll/_strtoul64.
+
+#include <string>
 
 #include <gtest/internal/gtest-port.h>
 
-#ifdef GTEST_OS_WINDOWS
-#include <windows.h>  // NOLINT
+#if GTEST_OS_WINDOWS
+#include <windows.h>  // For DWORD.
 #endif  // GTEST_OS_WINDOWS
 
 #include <gtest/gtest.h>
@@ -60,19 +64,10 @@ namespace testing {
 
 // Declares the flags.
 //
-// We don't want the users to modify these flags in the code, but want
-// Google Test's own unit tests to be able to access them.  Therefore we
-// declare them here as opposed to in gtest.h.
-GTEST_DECLARE_bool_(break_on_failure);
-GTEST_DECLARE_bool_(catch_exceptions);
-GTEST_DECLARE_string_(color);
-GTEST_DECLARE_string_(filter);
-GTEST_DECLARE_bool_(list_tests);
-GTEST_DECLARE_string_(output);
-GTEST_DECLARE_bool_(print_time);
-GTEST_DECLARE_int32_(repeat);
-GTEST_DECLARE_int32_(stack_trace_depth);
-GTEST_DECLARE_bool_(show_internal_stack_frames);
+// 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 {
 
@@ -81,6 +76,7 @@ namespace internal {
 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";
@@ -89,6 +85,7 @@ const char kListTestsFlag[] = "list_tests";
 const char kOutputFlag[] = "output";
 const char kPrintTimeFlag[] = "print_time";
 const char kRepeatFlag[] = "repeat";
+const char kThrowOnFailureFlag[] = "throw_on_failure";
 
 // This class saves the values of all Google Test flags in its c'tor, and
 // restores them in its d'tor.
@@ -96,37 +93,45 @@ 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);
     repeat_ = GTEST_FLAG(repeat);
+    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(repeat) = repeat_;
+    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_;
@@ -134,6 +139,7 @@ class GTestFlagSaver {
   bool print_time_;
   bool pretty_;
   internal::Int32 repeat_;
+  bool throw_on_failure_;
 } GTEST_ATTRIBUTE_UNUSED_;
 
 // Converts a Unicode code point to a narrow string in UTF-8 encoding.
@@ -164,6 +170,32 @@ String WideStringToUtf8(const wchar_t* str, int num_chars);
 // Returns the number of active threads, or 0 when there is an error.
 size_t GetThreadCount();
 
+// 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.
+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.
+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.
+bool ShouldRunTestOnShard(int total_shards, int shard_index, int test_id);
+
 // List is a simple singly-linked list container.
 //
 // We cannot use std::list as Microsoft's implementation of STL has
@@ -790,9 +822,10 @@ class UnitTestOptions {
   // Returns the output format, or "" for normal printed output.
   static String GetOutputFormat();
 
-  // Returns the name of the requested output file, or the default if none
-  // was explicitly specified.
-  static String GetOutputFile();
+  // 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.
 
@@ -808,7 +841,7 @@ class UnitTestOptions {
   static bool FilterMatchesTest(const String &test_case_name,
                                 const String &test_name);
 
-#ifdef GTEST_OS_WINDOWS
+#if GTEST_OS_WINDOWS
   // Function for supporting the gtest_catch_exception flag.
 
   // Returns EXCEPTION_EXECUTE_HANDLER if Google Test should handle the
@@ -891,6 +924,8 @@ class DefaultGlobalTestPartResultReporter
 
  private:
   UnitTestImpl* const unit_test_;
+
+  GTEST_DISALLOW_COPY_AND_ASSIGN_(DefaultGlobalTestPartResultReporter);
 };
 
 // This is the default per thread test part result reporter used in
@@ -905,6 +940,8 @@ class DefaultPerThreadTestPartResultReporter
 
  private:
   UnitTestImpl* const unit_test_;
+
+  GTEST_DISALLOW_COPY_AND_ASSIGN_(DefaultPerThreadTestPartResultReporter);
 };
 
 // The private implementation of the UnitTest class.  We don't protect
@@ -1066,7 +1103,7 @@ class UnitTestImpl {
                 tear_down_tc)->AddTestInfo(test_info);
   }
 
-#ifdef GTEST_HAS_PARAM_TEST
+#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() {
@@ -1108,11 +1145,18 @@ class UnitTestImpl {
     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();
+  int FilterTests(ReactionToSharding shard_tests);
 
   // Lists all the tests by name.
   void ListAllTests();
@@ -1139,7 +1183,7 @@ class UnitTestImpl {
     return gtest_trace_stack_.pointer();
   }
 
-#ifdef GTEST_HAS_DEATH_TEST
+#if GTEST_HAS_DEATH_TEST
   // 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.
@@ -1188,7 +1232,7 @@ class UnitTestImpl {
 
   internal::List<TestCase*> test_cases_;  // The list of TestCases.
 
-#ifdef GTEST_HAS_PARAM_TEST
+#if GTEST_HAS_PARAM_TEST
   // ParameterizedTestRegistry object used to register value-parameterized
   // tests.
   internal::ParameterizedTestCaseRegistry parameterized_test_registry_;
@@ -1237,7 +1281,7 @@ class UnitTestImpl {
   // How long the test took to run, in milliseconds.
   TimeInMillis elapsed_time_;
 
-#ifdef GTEST_HAS_DEATH_TEST
+#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_;
@@ -1256,11 +1300,98 @@ inline UnitTestImpl* GetUnitTestImpl() {
   return UnitTest::GetInstance()->impl();
 }
 
+// Internal helper functions for implementing the simple regular
+// expression matcher.
+bool IsInSet(char ch, const char* str);
+bool IsDigit(char ch);
+bool IsPunct(char ch);
+bool IsRepeat(char ch);
+bool IsWhiteSpace(char ch);
+bool IsWordChar(char ch);
+bool IsValidEscape(char ch);
+bool AtomMatchesChar(bool escaped, char pattern, char ch);
+bool ValidateRegex(const char* regex);
+bool MatchRegexAtHead(const char* regex, const char* str);
+bool MatchRepetitionAndRegexAtHead(
+    bool escaped, char ch, char repeat, const char* regex, const char* str);
+bool MatchRegexAnywhere(const char* regex, const char* str);
+
 // Parses the command line for Google Test flags, without initializing
 // other parts of Google Test.
 void ParseGoogleTestFlagsOnly(int* argc, char** argv);
 void ParseGoogleTestFlagsOnly(int* argc, wchar_t** argv);
 
+#if GTEST_HAS_DEATH_TEST
+
+// Returns the message describing the last system error, regardless of the
+// platform.
+String GetLastSystemErrorMessage();
+
+#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
+  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
+  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
+
 }  // namespace internal
 }  // namespace testing
 
diff --git a/utils/unittest/googletest/include/gtest/internal/gtest-internal.h b/utils/unittest/googletest/include/gtest/internal/gtest-internal.h
index 242ffea12f..def4b5970a 100644
--- a/utils/unittest/googletest/include/gtest/internal/gtest-internal.h
+++ b/utils/unittest/googletest/include/gtest/internal/gtest-internal.h
@@ -39,7 +39,7 @@
 
 #include <gtest/internal/gtest-port.h>
 
-#ifdef GTEST_OS_LINUX
+#if GTEST_OS_LINUX
 #include <stdlib.h>
 #include <sys/types.h>
 #include <sys/wait.h>
@@ -566,7 +566,7 @@ class TestFactoryImpl : public TestFactoryBase {
   virtual Test* CreateTest() { return new TestClass; }
 };
 
-#ifdef GTEST_OS_WINDOWS
+#if GTEST_OS_WINDOWS
 
 // Predicate-formatters for implementing the HRESULT checking macros
 // {ASSERT|EXPECT}_HRESULT_{SUCCEEDED|FAILED}
@@ -620,7 +620,7 @@ TestInfo* MakeAndRegisterTestInfo(
     TearDownTestCaseFunc tear_down_tc,
     TestFactoryBase* factory);
 
-#if defined(GTEST_HAS_TYPED_TEST) || defined(GTEST_HAS_TYPED_TEST_P)
+#if GTEST_HAS_TYPED_TEST || GTEST_HAS_TYPED_TEST_P
 
 // State of the definition of a type-parameterized test case.
 class TypedTestCasePState {
@@ -636,6 +636,7 @@ class TypedTestCasePState {
       fprintf(stderr, "%s Test %s must be defined before "
               "REGISTER_TYPED_TEST_CASE_P(%s, ...).\n",
               FormatFileLocation(file, line).c_str(), test_name, case_name);
+      fflush(stderr);
       abort();
     }
     defined_test_names_.insert(test_name);
@@ -768,6 +769,9 @@ String GetCurrentOsStackTraceExceptTop(UnitTest* unit_test, int skip_count);
 // Returns the number of failed test parts in the given test result object.
 int GetFailedPartCount(const TestResult* result);
 
+// A helper for suppressing warnings on unreachable code in some macros.
+bool AlwaysTrue();
+
 }  // namespace internal
 }  // namespace testing
 
@@ -784,12 +788,18 @@ int GetFailedPartCount(const TestResult* result);
 #define GTEST_SUCCESS_(message) \
   GTEST_MESSAGE_(message, ::testing::TPRT_SUCCESS)
 
+// Suppresses MSVC warnings 4072 (unreachable code) for the code following
+// statement if it returns or throws (or doesn't return or throw in some
+// situations).
+#define GTEST_HIDE_UNREACHABLE_CODE_(statement) \
+  if (::testing::internal::AlwaysTrue()) { statement; }
+
 #define GTEST_TEST_THROW_(statement, expected_exception, fail) \
   GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
   if (const char* gtest_msg = "") { \
     bool gtest_caught_expected = false; \
     try { \
-      statement; \
+      GTEST_HIDE_UNREACHABLE_CODE_(statement); \
     } \
     catch (expected_exception const&) { \
       gtest_caught_expected = true; \
@@ -813,7 +823,7 @@ int GetFailedPartCount(const TestResult* result);
   GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
   if (const char* gtest_msg = "") { \
     try { \
-      statement; \
+      GTEST_HIDE_UNREACHABLE_CODE_(statement); \
     } \
     catch (...) { \
       gtest_msg = "Expected: " #statement " doesn't throw an exception.\n" \
@@ -829,7 +839,7 @@ int GetFailedPartCount(const TestResult* result);
   if (const char* gtest_msg = "") { \
     bool gtest_caught_any = false; \
     try { \
-      statement; \
+      GTEST_HIDE_UNREACHABLE_CODE_(statement); \
     } \
     catch (...) { \
       gtest_caught_any = true; \
@@ -855,7 +865,7 @@ int GetFailedPartCount(const TestResult* result);
   GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
   if (const char* gtest_msg = "") { \
     ::testing::internal::HasNewFatalFailureHelper gtest_fatal_failure_checker; \
-    { statement; } \
+    GTEST_HIDE_UNREACHABLE_CODE_(statement); \
     if (gtest_fatal_failure_checker.has_new_fatal_failure()) { \
       gtest_msg = "Expected: " #statement " doesn't generate new fatal " \
                   "failures in the current thread.\n" \
diff --git a/utils/unittest/googletest/include/gtest/internal/gtest-param-util-generated.h b/utils/unittest/googletest/include/gtest/internal/gtest-param-util-generated.h
index 17f3f7bf97..ad06e02477 100644
--- a/utils/unittest/googletest/include/gtest/internal/gtest-param-util-generated.h
+++ b/utils/unittest/googletest/include/gtest/internal/gtest-param-util-generated.h
@@ -46,7 +46,7 @@
 
 #include <gtest/internal/gtest-port.h>
 
-#ifdef GTEST_HAS_PARAM_TEST
+#if GTEST_HAS_PARAM_TEST
 
 #include <gtest/internal/gtest-param-util.h>
 
@@ -2659,7 +2659,7 @@ class ValueArray50 {
   const T50 v50_;
 };
 
-#ifdef GTEST_HAS_COMBINE
+#if GTEST_HAS_COMBINE
 // INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
 //
 // Generates values from the Cartesian product of values produced
diff --git a/utils/unittest/googletest/include/gtest/internal/gtest-param-util.h b/utils/unittest/googletest/include/gtest/internal/gtest-param-util.h
index 3bb07ecfc0..5559ab4492 100644
--- a/utils/unittest/googletest/include/gtest/internal/gtest-param-util.h
+++ b/utils/unittest/googletest/include/gtest/internal/gtest-param-util.h
@@ -40,7 +40,7 @@
 
 #include <gtest/internal/gtest-port.h>
 
-#ifdef GTEST_HAS_PARAM_TEST
+#if GTEST_HAS_PARAM_TEST
 
 #if GTEST_HAS_RTTI
 #include <typeinfo>
diff --git a/utils/unittest/googletest/include/gtest/internal/gtest-port.h b/utils/unittest/googletest/include/gtest/internal/gtest-port.h
index 20a95c9b2e..d949ec1aa9 100644
--- a/utils/unittest/googletest/include/gtest/internal/gtest-port.h
+++ b/utils/unittest/googletest/include/gtest/internal/gtest-port.h
@@ -63,21 +63,15 @@
 
 // This header defines the following utilities:
 //
-// Macros indicating the name of the Google C++ Testing Framework project:
-//   GTEST_NAME              - a string literal of the project name.
-//   GTEST_FLAG_PREFIX       - a string literal of the prefix all Google
-//                             Test flag names share.
-//   GTEST_FLAG_PREFIX_UPPER - a string literal of the prefix all Google
-//                             Test flag names share, in upper case.
-//
-// Macros indicating the current platform:
-//   GTEST_OS_CYGWIN   - defined iff compiled on Cygwin.
-//   GTEST_OS_LINUX    - defined iff compiled on Linux.
-//   GTEST_OS_MAC      - defined iff compiled on Mac OS X.
-//   GTEST_OS_SOLARIS  - defined iff compiled on Sun Solaris.
-//   GTEST_OS_SYMBIAN  - defined iff compiled for Symbian.
-//   GTEST_OS_WINDOWS  - defined iff compiled on Windows.
-//   GTEST_OS_ZOS      - defined iff compiled on IBM z/OS.
+// Macros indicating the current platform (defined to 1 if compiled on
+// the given platform; otherwise undefined):
+//   GTEST_OS_CYGWIN   - Cygwin
+//   GTEST_OS_LINUX    - Linux
+//   GTEST_OS_MAC      - Mac OS X
+//   GTEST_OS_SOLARIS  - Sun Solaris
+//   GTEST_OS_SYMBIAN  - Symbian
+//   GTEST_OS_WINDOWS  - Windows
+//   GTEST_OS_ZOS      - z/OS
 //
 // Among the platforms, Cygwin, Linux, Max OS X, and Windows have the
 // most stable support.  Since core members of the Google Test project
@@ -86,17 +80,19 @@
 // googletestframework@googlegroups.com (patches for fixing them are
 // even more welcome!).
 //
-// Note that it is possible that none of the GTEST_OS_ macros are defined.
+// Note that it is possible that none of the GTEST_OS_* macros are defined.
 //
-// Macros indicating available Google Test features:
-//   GTEST_HAS_COMBINE      - defined iff Combine construct is supported
-//                            in value-parameterized tests.
-//   GTEST_HAS_DEATH_TEST   - defined iff death tests are supported.
-//   GTEST_HAS_PARAM_TEST   - defined iff value-parameterized tests are
-//                            supported.
-//   GTEST_HAS_TYPED_TEST   - defined iff typed tests are supported.
-//   GTEST_HAS_TYPED_TEST_P - defined iff type-parameterized tests are
-//                            supported.
+// Macros indicating available Google Test features (defined to 1 if
+// the corresponding feature is supported; otherwise undefined):
+//   GTEST_HAS_COMBINE      - the Combine() function (for value-parameterized
+//                            tests)
+//   GTEST_HAS_DEATH_TEST   - death tests
+//   GTEST_HAS_PARAM_TEST   - value-parameterized tests
+//   GTEST_HAS_TYPED_TEST   - typed tests
+//   GTEST_HAS_TYPED_TEST_P - type-parameterized tests
+//   GTEST_USES_POSIX_RE    - enhanced POSIX regex is used.
+//   GTEST_USES_SIMPLE_RE   - our own simple regex is used;
+//                            the above two are mutually exclusive.
 //
 // Macros for basic C++ coding:
 //   GTEST_AMBIGUOUS_ELSE_BLOCKER_ - for disabling a gcc warning.
@@ -155,9 +151,11 @@
 #include <stdio.h>
 #include <iostream>  // Used for GTEST_CHECK_
 
-#define GTEST_NAME "Google Test"
-#define GTEST_FLAG_PREFIX "gtest_"
-#define GTEST_FLAG_PREFIX_UPPER "GTEST_"
+#define GTEST_DEV_EMAIL_ "googletestframework@@googlegroups.com"
+#define GTEST_FLAG_PREFIX_ "gtest_"
+#define GTEST_FLAG_PREFIX_UPPER_ "GTEST_"
+#define GTEST_NAME_ "Google Test"
+#define GTEST_PROJECT_URL_ "http://code.google.com/p/googletest/"
 
 // Determines the version of gcc that is used to compile this.
 #ifdef __GNUC__
@@ -168,49 +166,76 @@
 
 // Determines the platform on which Google Test is compiled.
 #ifdef __CYGWIN__
-#define GTEST_OS_CYGWIN
+#define GTEST_OS_CYGWIN 1
 #elif __SYMBIAN32__
-#define GTEST_OS_SYMBIAN
+#define GTEST_OS_SYMBIAN 1
 #elif defined _MSC_VER
 // TODO(kenton@google.com): GTEST_OS_WINDOWS is currently used to mean
 //   both "The OS is Windows" and "The compiler is MSVC".  These
 //   meanings really should be separated in order to better support
 //   Windows compilers other than MSVC.
-#define GTEST_OS_WINDOWS
+#define GTEST_OS_WINDOWS 1
 #elif defined __APPLE__
-#define GTEST_OS_MAC
+#define GTEST_OS_MAC 1
 #elif defined __linux__
-#define GTEST_OS_LINUX
+#define GTEST_OS_LINUX 1
 #elif defined __MVS__
-#define GTEST_OS_ZOS
+#define GTEST_OS_ZOS 1
 #elif defined(__sun) && defined(__SVR4)
-#define GTEST_OS_SOLARIS
+#define GTEST_OS_SOLARIS 1
 #elif defined(__HAIKU__)
 #define GTEST_OS_HAIKU
 #endif  // _MSC_VER
 
-// Determines whether ::std::string and ::string are available.
+#if GTEST_OS_CYGWIN || GTEST_OS_LINUX || GTEST_OS_MAC
 
-#ifndef GTEST_HAS_STD_STRING
-// The user didn't tell us whether ::std::string is available, so we
-// need to figure it out.
+// On some platforms, <regex.h> needs someone to define size_t, and
+// won't compile otherwise.  We can #include it here as we already
+// included <stdlib.h>, which is guaranteed to define size_t through
+// <stddef.h>.
+#include <regex.h>  // NOLINT
+#define GTEST_USES_POSIX_RE 1
 
-#ifdef GTEST_OS_WINDOWS
+#else
+
+// <regex.h> may not be available on this platform.  Use our own
+// simple regex implementation instead.
+#define GTEST_USES_SIMPLE_RE 1
+
+#endif  // GTEST_OS_CYGWIN || GTEST_OS_LINUX || GTEST_OS_MAC
+
+// Defines GTEST_HAS_EXCEPTIONS to 1 if exceptions are enabled, or 0
+// otherwise.
+
+#ifdef _MSC_VER  // Compiled by MSVC?
 // Assumes that exceptions are enabled by default.
-#ifndef _HAS_EXCEPTIONS
+#ifndef _HAS_EXCEPTIONS  // MSVC uses this macro to enable exceptions.
 #define _HAS_EXCEPTIONS 1
 #endif  // _HAS_EXCEPTIONS
-// GTEST_HAS_EXCEPTIONS is non-zero iff exceptions are enabled.  It is
-// always defined, while _HAS_EXCEPTIONS is defined only on Windows.
 #define GTEST_HAS_EXCEPTIONS _HAS_EXCEPTIONS
-// On Windows, we can use ::std::string if the compiler version is VS
-// 2005 or above, or if exceptions are enabled.
-#define GTEST_HAS_STD_STRING ((_MSC_VER >= 1400) || GTEST_HAS_EXCEPTIONS)
-#else  // We are on Linux or Mac OS.
+#else  // The compiler is not MSVC.
+// gcc defines __EXCEPTIONS to 1 iff exceptions are enabled.  For
+// other compilers, we assume exceptions are disabled to be
+// conservative.
+#if defined(__GNUC__) && __EXCEPTIONS
+#define GTEST_HAS_EXCEPTIONS 1
+#else
 #define GTEST_HAS_EXCEPTIONS 0
-#define GTEST_HAS_STD_STRING 1
-#endif  // GTEST_OS_WINDOWS
+#endif  // defined(__GNUC__) && __EXCEPTIONS
+#endif  // _MSC_VER
 
+// Determines whether ::std::string and ::string are available.
+
+#ifndef GTEST_HAS_STD_STRING
+// The user didn't tell us whether ::std::string is available, so we
+// need to figure it out.  The only environment that we know
+// ::std::string is not available is MSVC 7.1 or lower with exceptions
+// disabled.
+#if defined(_MSC_VER) && (_MSC_VER < 1400) && !GTEST_HAS_EXCEPTIONS
+#define GTEST_HAS_STD_STRING 0
+#else
+#define GTEST_HAS_STD_STRING 1
+#endif
 #endif  // GTEST_HAS_STD_STRING
 
 #ifndef GTEST_HAS_GLOBAL_STRING
@@ -227,21 +252,23 @@
 // TODO(wan@google.com): uses autoconf to detect whether ::std::wstring
 //   is available.
 
-#if defined(GTEST_OS_CYGWIN) || defined(GTEST_OS_SOLARIS) || defined(GTEST_OS_HAIKU) || defined(_MINIX)
-// At least some versions of cygwin don't support ::std::wstring.
+#if GTEST_OS_CYGWIN || GTEST_OS_SOLARIS || GTEST_OS_HAIKU || defined(_MINIX)
+// Cygwin 1.5 and below doesn't support ::std::wstring.
+// Cygwin 1.7 might add wstring support; this should be updated when clear.
 // Solaris' libc++ doesn't support it either.
 // Minix currently doesn't support it either.
 #define GTEST_HAS_STD_WSTRING 0
 #else
 #define GTEST_HAS_STD_WSTRING GTEST_HAS_STD_STRING
-#endif  // defined(GTEST_OS_CYGWIN) || defined(GTEST_OS_SOLARIS)
+#endif  // GTEST_OS_CYGWIN || GTEST_OS_SOLARIS
 
 #endif  // GTEST_HAS_STD_WSTRING
 
 #ifndef GTEST_HAS_GLOBAL_WSTRING
 // The user didn't tell us whether ::wstring is available, so we need
 // to figure it out.
-#define GTEST_HAS_GLOBAL_WSTRING GTEST_HAS_GLOBAL_STRING
+#define GTEST_HAS_GLOBAL_WSTRING \
+    (GTEST_HAS_STD_WSTRING && GTEST_HAS_GLOBAL_STRING)
 #endif  // GTEST_HAS_GLOBAL_WSTRING
 
 #if GTEST_HAS_STD_STRING || GTEST_HAS_GLOBAL_STRING || \
@@ -295,13 +322,7 @@
 // Determines whether <pthread.h> is available.
 #ifndef GTEST_HAS_PTHREAD
 // The user didn't tell us, so we need to figure it out.
-
-#if defined(GTEST_OS_LINUX) || defined(GTEST_OS_MAC)
-#define GTEST_HAS_PTHREAD 1
-#else
-#define GTEST_HAS_PTHREAD 0
-#endif  // GTEST_OS_LINUX || GTEST_OS_MAC
-
+#define GTEST_HAS_PTHREAD (GTEST_OS_LINUX || GTEST_OS_MAC)
 #endif  // GTEST_HAS_PTHREAD
 
 // Determines whether tr1/tuple is available.  If you have tr1/tuple
@@ -342,33 +363,36 @@
 #ifndef GTEST_HAS_CLONE
 // The user didn't tell us, so we need to figure it out.
 
-#if defined(GTEST_OS_LINUX) && !defined(__ia64__)
+#if GTEST_OS_LINUX && !defined(__ia64__)
 #define GTEST_HAS_CLONE 1
 #else
 #define GTEST_HAS_CLONE 0
-#endif  // defined(GTEST_OS_LINUX) && !defined(__ia64__)
+#endif  // GTEST_OS_LINUX && !defined(__ia64__)
 
 #endif  // GTEST_HAS_CLONE
 
 // Determines whether to support death tests.
-#if GTEST_HAS_STD_STRING && GTEST_HAS_CLONE
-#define GTEST_HAS_DEATH_TEST
-// On some platforms, <regex.h> needs someone to define size_t, and
-// won't compile otherwise.  We can #include it here as we already
-// included <stdlib.h>, which is guaranteed to define size_t through
-// <stddef.h>.
-#include <regex.h>
+// Google Test does not support death tests for VC 7.1 and earlier for
+// these reasons:
+//   1. std::vector does not build in VC 7.1 when exceptions are disabled.
+//   2. std::string does not build in VC 7.1 when exceptions are disabled
+//      (this is covered by GTEST_HAS_STD_STRING guard).
+//   3. abort() in a VC 7.1 application compiled as GUI in debug config
+//      pops up a dialog window that cannot be suppressed programmatically.
+#if GTEST_HAS_STD_STRING && (GTEST_OS_LINUX || \
+                             GTEST_OS_MAC || \
+                             GTEST_OS_CYGWIN || \
+                             (GTEST_OS_WINDOWS && _MSC_VER >= 1400))
+#define GTEST_HAS_DEATH_TEST 1
 #include <vector>
-#include <fcntl.h>
-#include <sys/mman.h>
-#endif  // GTEST_HAS_STD_STRING && GTEST_HAS_CLONE
+#endif
 
 // Determines whether to support value-parameterized tests.
 
 #if defined(__GNUC__) || (_MSC_VER >= 1400)
 // TODO(vladl@google.com): get the implementation rid of vector and list
 // to compile on MSVC 7.1.
-#define GTEST_HAS_PARAM_TEST
+#define GTEST_HAS_PARAM_TEST 1
 #endif  // defined(__GNUC__) || (_MSC_VER >= 1400)
 
 // Determines whether to support type-driven tests.
@@ -376,21 +400,19 @@
 // Typed tests need <typeinfo> and variadic macros, which gcc and VC
 // 8.0+ support.
 #if defined(__GNUC__) || (_MSC_VER >= 1400)
-#define GTEST_HAS_TYPED_TEST
-#define GTEST_HAS_TYPED_TEST_P
+#define GTEST_HAS_TYPED_TEST 1
+#define GTEST_HAS_TYPED_TEST_P 1
 #endif  // defined(__GNUC__) || (_MSC_VER >= 1400)
 
 // Determines whether to support Combine(). This only makes sense when
 // value-parameterized tests are enabled.
-#if defined(GTEST_HAS_PARAM_TEST) && GTEST_HAS_TR1_TUPLE
-#define GTEST_HAS_COMBINE
-#endif  // defined(GTEST_HAS_PARAM_TEST) && GTEST_HAS_TR1_TUPLE
+#if GTEST_HAS_PARAM_TEST && GTEST_HAS_TR1_TUPLE
+#define GTEST_HAS_COMBINE 1
+#endif  // GTEST_HAS_PARAM_TEST && GTEST_HAS_TR1_TUPLE
 
 // Determines whether the system compiler uses UTF-16 for encoding wide strings.
-#if defined(GTEST_OS_WINDOWS) || defined(GTEST_OS_CYGWIN) || \
-        defined(GTEST_OS_SYMBIAN)
-#define GTEST_WIDE_STRING_USES_UTF16_ 1
-#endif
+#define GTEST_WIDE_STRING_USES_UTF16_ \
+    (GTEST_OS_WINDOWS || GTEST_OS_CYGWIN || GTEST_OS_SYMBIAN)
 
 // Defines some utility macros.
 
@@ -491,8 +513,6 @@ class scoped_ptr {
   GTEST_DISALLOW_COPY_AND_ASSIGN_(scoped_ptr);
 };
 
-#ifdef GTEST_HAS_DEATH_TEST
-
 // Defines RE.
 
 // A simple C++ wrapper for <regex.h>.  It uses the POSIX Enxtended
@@ -550,12 +570,16 @@ class RE {
   // String type here, in order to simplify dependencies between the
   // files.
   const char* pattern_;
+  bool is_valid_;
+#if GTEST_USES_POSIX_RE
   regex_t full_regex_;     // For FullMatch().
   regex_t partial_regex_;  // For PartialMatch().
-  bool is_valid_;
-};
+#else  // GTEST_USES_SIMPLE_RE
+  const char* full_pattern_;  // For FullMatch();
+#endif
 
-#endif  // GTEST_HAS_DEATH_TEST
+  GTEST_DISALLOW_COPY_AND_ASSIGN_(RE);
+};
 
 // Defines logging utilities:
 //   GTEST_LOG_()   - logs messages at the specified severity level.
@@ -584,14 +608,17 @@ inline void FlushInfoLog() { fflush(NULL); }
 //   CaptureStderr     - starts capturing stderr.
 //   GetCapturedStderr - stops capturing stderr and returns the captured string.
 
-#ifdef GTEST_HAS_DEATH_TEST
+#if GTEST_HAS_STD_STRING
+void CaptureStderr();
+::std::string GetCapturedStderr();
+#endif  // GTEST_HAS_STD_STRING
+
+#if GTEST_HAS_DEATH_TEST
 
 // A copy of all command line arguments.  Set by InitGoogleTest().
 extern ::std::vector<String> g_argvs;
 
-void CaptureStderr();
 // GTEST_HAS_DEATH_TEST implies we have ::std::string.
-::std::string GetCapturedStderr();
 const ::std::vector<String>& GetArgvs();
 
 #endif  // GTEST_HAS_DEATH_TEST
@@ -675,10 +702,15 @@ struct is_pointer : public false_type {};
 template <typename T>
 struct is_pointer<T*> : public true_type {};
 
+#if GTEST_OS_WINDOWS
+#define GTEST_PATH_SEP_ "\\"
+#else
+#define GTEST_PATH_SEP_ "/"
+#endif  // GTEST_OS_WINDOWS
+
 // Defines BiggestInt as the biggest signed integer type the compiler
 // supports.
-
-#ifdef GTEST_OS_WINDOWS
+#if GTEST_OS_WINDOWS
 typedef __int64 BiggestInt;
 #else
 typedef long long BiggestInt;  // NOLINT
@@ -736,7 +768,7 @@ class TypeWithSize<4> {
 template <>
 class TypeWithSize<8> {
  public:
-#ifdef GTEST_OS_WINDOWS
+#if GTEST_OS_WINDOWS
   typedef __int64 Int;
   typedef unsigned __int64 UInt;
 #else
@@ -759,7 +791,7 @@ inline const char* GetEnv(const char* name) {
 #ifdef _WIN32_WCE  // We are on Windows CE.
   // CE has no environment variables.
   return NULL;
-#elif defined(GTEST_OS_WINDOWS)  // We are on Windows proper.
+#elif GTEST_OS_WINDOWS  // We are on Windows proper.
   // MSVC 8 deprecates getenv(), so we want to suppress warning 4996
   // (deprecated function) there.
 #pragma warning(push)          // Saves the current warning state.
diff --git a/utils/unittest/googletest/include/gtest/internal/gtest-string.h b/utils/unittest/googletest/include/gtest/internal/gtest-string.h
index 178f14e126..566a6b57e2 100644
--- a/utils/unittest/googletest/include/gtest/internal/gtest-string.h
+++ b/utils/unittest/googletest/include/gtest/internal/gtest-string.h
@@ -35,7 +35,7 @@
 // Google Test.  They are subject to change without notice. They should not used
 // by code external to Google Test.
 //
-// This header file is #included by testing/base/internal/gtest-internal.h.
+// This header file is #included by <gtest/internal/gtest-internal.h>.
 // It should not be #included by other files.
 
 #ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_STRING_H_
diff --git a/utils/unittest/googletest/include/gtest/internal/gtest-type-util.h b/utils/unittest/googletest/include/gtest/internal/gtest-type-util.h
index 815da4ba83..1ea7d18e3b 100644
--- a/utils/unittest/googletest/include/gtest/internal/gtest-type-util.h
+++ b/utils/unittest/googletest/include/gtest/internal/gtest-type-util.h
@@ -45,7 +45,7 @@
 #include <gtest/internal/gtest-port.h>
 #include <gtest/internal/gtest-string.h>
 
-#if defined(GTEST_HAS_TYPED_TEST) || defined(GTEST_HAS_TYPED_TEST_P)
+#if GTEST_HAS_TYPED_TEST || GTEST_HAS_TYPED_TEST_P
 
 #ifdef __GNUC__
 #include <cxxabi.h>