Merge branch 'google:main' into master

2025-04-04 21:15:03 +00:00 · 2022-10-19 20:30:36 -07:00 · 2022-10-19 20:30:36 -07:00 · 1f32636560
commit 1f32636560
parent c538aa9ddb e07617d6c6
45 changed files with 685 additions and 222 deletions
--- a/.github/workflows/gtest-ci.yml
+++ b/.github/workflows/gtest-ci.yml
@ -12,32 +12,32 @@ jobs:
    runs-on: ubuntu-latest
    steps:

-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
      with:
        fetch-depth: 0

    - name: Tests
-      run: bazel test --test_output=errors //...
+      run: bazel test --cxxopt=-std=c++14 --features=external_include_paths --test_output=errors ...

-  MacOs:
+  macOS:
    runs-on: macos-latest
    steps:

-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
      with:
        fetch-depth: 0

    - name: Tests
-      run: bazel test --test_output=errors //...
+      run:  bazel test --cxxopt=-std=c++14 --features=external_include_paths --test_output=errors ...


  Windows:
    runs-on: windows-latest
    steps:

-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
      with:
        fetch-depth: 0

    - name: Tests
-      run: bazel test --test_output=errors //...
+      run: bazel test --cxxopt=/std:c++14 --features=external_include_paths --test_output=errors ...
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -30,6 +30,7 @@ include(GNUInstallDirs)
 #Note that googlemock target already builds googletest
 option(BUILD_GMOCK "Builds the googlemock subproject" ON)
 option(INSTALL_GTEST "Enable installation of googletest. (Projects embedding googletest may want to turn this OFF.)" ON)
+option(GTEST_HAS_ABSL "Use Abseil and RE2. Requires Abseil and RE2 to be separately added to the build." OFF)

 if(BUILD_GMOCK)
  add_subdirectory( googlemock )
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@ -80,8 +80,8 @@ fairly rigid coding style, as defined by the
 [google-styleguide](https://github.com/google/styleguide) project. All patches
 will be expected to conform to the style outlined
 [here](https://google.github.io/styleguide/cppguide.html). Use
-[.clang-format](https://github.com/google/googletest/blob/master/.clang-format)
-to check your formatting.
+[.clang-format](https://github.com/google/googletest/blob/main/.clang-format) to
+check your formatting.

 ## Requirements for Contributors

--- a/README.md
+++ b/README.md
@ -59,39 +59,12 @@ More information about building GoogleTest can be found at

 ## Supported Platforms

-GoogleTest requires a codebase and compiler compliant with the C++14 standard or
-newer.
-
-The GoogleTest code is officially supported on the following platforms.
-Operating systems or tools not listed below are community-supported. For
-community-supported platforms, patches that do not complicate the code may be
-considered.
-
-If you notice any problems on your platform, please file an issue on the
-[GoogleTest GitHub Issue Tracker](https://github.com/google/googletest/issues).
-Pull requests containing fixes are welcome!
-
-### Operating Systems
-
-*   Linux
-*   macOS
-*   Windows
-
-### Compilers
-
-*   gcc 5.0+
-*   clang 5.0+
-*   MSVC 2015+
-
-**macOS users:** Xcode 9.3+ provides clang 5.0+.
-
-### Build Systems
-
-*   [Bazel](https://bazel.build/)
-*   [CMake](https://cmake.org/)
-
-**Note:** Bazel is the build system used by the team internally and in tests.
-CMake is supported on a best-effort basis and by the community.
+GoogleTest follows Google's
+[Foundational C++ Support Policy](https://opensource.google/documentation/policies/cplusplus-support).
+See
+[this table](https://github.com/google/oss-policies-info/blob/main/foundational-cxx-support-matrix.md)
+for a list of currently supported versions compilers, platforms, and build
+tools.

 ## Who Is Using GoogleTest?

@ -138,7 +111,7 @@ that generates stub code for GoogleTest.
 ## Contributing Changes

 Please read
-[`CONTRIBUTING.md`](https://github.com/google/googletest/blob/master/CONTRIBUTING.md)
+[`CONTRIBUTING.md`](https://github.com/google/googletest/blob/main/CONTRIBUTING.md)
 for details on how to contribute to this project.

 Happy testing!
--- a/21
+++ b/21
@ -20,20 +20,25 @@ http_archive(

 http_archive(
    name = "rules_python",
-    sha256 = "0b460f17771258341528753b1679335b629d1d25e3af28eda47d009c103a6e15",
-    strip_prefix = "rules_python-aef17ad72919d184e5edb7abf61509eb78e57eda",
-    urls = ["https://github.com/bazelbuild/rules_python/archive/aef17ad72919d184e5edb7abf61509eb78e57eda.zip"],  # 2022-06-21T23:44:47Z
+    sha256 = "8c8fe44ef0a9afc256d1e75ad5f448bb59b81aba149b8958f02f7b3a98f5d9b4",
+    strip_prefix = "rules_python-0.13.0",
+    url = "https://github.com/bazelbuild/rules_python/archive/refs/tags/0.13.0.tar.gz",
 )

 http_archive(
    name = "bazel_skylib",
-    urls = ["https://github.com/bazelbuild/bazel-skylib/releases/download/1.2.1/bazel-skylib-1.2.1.tar.gz"],
-    sha256 = "f7be3474d42aae265405a592bb7da8e171919d74c16f082a5457840f06054728",
+    urls = [
+        "https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/releases/download/1.3.0/bazel-skylib-1.3.0.tar.gz",
+        "https://github.com/bazelbuild/bazel-skylib/releases/download/1.3.0/bazel-skylib-1.3.0.tar.gz",
+    ],
+    sha256 = "74d544d96f4a5bb630d465ca8bbcfe231e3594e5aae57e1edbf17a6eb3ca2506",
 )

 http_archive(
    name = "platforms",
-    sha256 = "a879ea428c6d56ab0ec18224f976515948822451473a80d06c2e50af0bbe5121",
-    strip_prefix = "platforms-da5541f26b7de1dc8e04c075c99df5351742a4a2",
-    urls = ["https://github.com/bazelbuild/platforms/archive/da5541f26b7de1dc8e04c075c99df5351742a4a2.zip"],  # 2022-05-27
+    urls = [
+        "https://mirror.bazel.build/github.com/bazelbuild/platforms/releases/download/0.0.6/platforms-0.0.6.tar.gz",
+        "https://github.com/bazelbuild/platforms/releases/download/0.0.6/platforms-0.0.6.tar.gz",
+    ],
+    sha256 = "5308fc1d8865406a49427ba24a9ab53087f17f5266a7aabbfc28823f3916e1ca",
 )
--- a/ci/linux-presubmit.sh
+++ b/ci/linux-presubmit.sh
@ -80,6 +80,7 @@ time docker run \
      --copt="-Wuninitialized" \
      --copt="-Wno-error=pragmas" \
      --distdir="/bazel-distdir" \
+      --features=external_include_paths \
      --keep_going \
      --show_timestamps \
      --test_output=errors
@ -100,6 +101,7 @@ for std in ${STD}; do
        --copt="-Wuninitialized" \
        --define="absl=${absl}" \
        --distdir="/bazel-distdir" \
+        --features=external_include_paths \
        --keep_going \
        --show_timestamps \
        --test_output=errors
@ -123,6 +125,7 @@ for std in ${STD}; do
        --copt="-Wuninitialized" \
        --define="absl=${absl}" \
        --distdir="/bazel-distdir" \
+        --features=external_include_paths \
        --keep_going \
        --linkopt="--gcc-toolchain=/usr/local" \
        --show_timestamps \
--- a/ci/macos-presubmit.sh
+++ b/ci/macos-presubmit.sh
@ -68,6 +68,7 @@ for absl in 0 1; do
    --copt="-Werror" \
    --cxxopt="-std=c++14" \
    --define="absl=${absl}" \
+    --features=external_include_paths \
    --keep_going \
    --show_timestamps \
    --test_output=errors
--- a/ci/windows-presubmit.bat
+++ b/ci/windows-presubmit.bat
@ -0,0 +1,56 @@
+SETLOCAL ENABLEDELAYEDEXPANSION
+
+SET BAZEL_EXE=%KOKORO_GFILE_DIR%\bazel-5.1.1-windows-x86_64.exe
+
+SET PATH=C:\Python37;%PATH%
+SET BAZEL_PYTHON=C:\python37\python.exe
+SET BAZEL_SH=C:\tools\msys64\usr\bin\bash.exe
+SET CMAKE_BIN="C:\Program Files\CMake\bin\cmake.exe"
+SET CTEST_BIN="C:\Program Files\CMake\bin\ctest.exe"
+SET CTEST_OUTPUT_ON_FAILURE=1
+
+IF EXIST git\googletest (
+  CD git\googletest
+) ELSE IF EXIST github\googletest (
+  CD github\googletest
+)
+
+IF %errorlevel% neq 0 EXIT /B 1
+
+:: ----------------------------------------------------------------------------
+:: CMake Visual Studio 15 2017 Win64
+MKDIR cmake_msvc2017
+CD cmake_msvc2017
+
+%CMAKE_BIN% .. ^
+  -G "Visual Studio 15 2017 Win64" ^
+  -DPYTHON_EXECUTABLE:FILEPATH=c:\python37\python.exe ^
+  -DPYTHON_INCLUDE_DIR:PATH=c:\python37\include ^
+  -DPYTHON_LIBRARY:FILEPATH=c:\python37\lib\site-packages\pip ^
+  -Dgtest_build_samples=ON ^
+  -Dgtest_build_tests=ON ^
+  -Dgmock_build_tests=ON
+IF %errorlevel% neq 0 EXIT /B 1
+
+%CMAKE_BIN% --build . --target ALL_BUILD --config Debug -- -maxcpucount
+IF %errorlevel% neq 0 EXIT /B 1
+
+%CTEST_BIN% -C Debug --timeout 600
+IF %errorlevel% neq 0 EXIT /B 1
+
+CD ..
+RMDIR /S /Q cmake_msvc2017
+
+:: ----------------------------------------------------------------------------
+:: Bazel Visual Studio 15 2017 Win64
+
+SET BAZEL_VC=C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\VC
+%BAZEL_EXE% test ... ^
+  --compilation_mode=dbg ^
+  --copt=/std:c++14 ^
+  --copt=/WX ^
+  --features=external_include_paths ^
+  --keep_going ^
+  --test_output=errors ^
+  --test_tag_filters=-no_test_msvc2017
+IF %errorlevel% neq 0 EXIT /B 1
--- a/docs/_layouts/default.html
+++ b/docs/_layouts/default.html
@ -48,7 +48,7 @@
      <div class="footer">
        GoogleTest &middot;
        <a href="https://github.com/google/googletest">GitHub Repository</a> &middot;
-        <a href="https://github.com/google/googletest/blob/master/LICENSE">License</a> &middot;
+        <a href="https://github.com/google/googletest/blob/main/LICENSE">License</a> &middot;
        <a href="https://policies.google.com/privacy">Privacy Policy</a>
      </div>
    </div>
--- a/docs/advanced.md
+++ b/docs/advanced.md
@ -487,7 +487,7 @@ When built with Bazel and using Abseil, googletest uses the
 systems (Linux, Cygwin, Mac), googletest uses the
 [POSIX extended regular expression](http://www.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap09.html#tag_09_04)
 syntax. To learn about POSIX syntax, you may want to read this
-[Wikipedia entry](http://en.wikipedia.org/wiki/Regular_expression#POSIX_Extended_Regular_Expressions).
+[Wikipedia entry](http://en.wikipedia.org/wiki/Regular_expression#POSIX_extended).

 On Windows, googletest uses its own simple regular expression implementation. It
 lacks many features. For example, we don't support union (`"x|y"`), grouping
@ -1142,8 +1142,8 @@ GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(FooTest);

 You can see [sample7_unittest.cc] and [sample8_unittest.cc] for more examples.

-[sample7_unittest.cc]: https://github.com/google/googletest/blob/master/googletest/samples/sample7_unittest.cc "Parameterized Test example"
-[sample8_unittest.cc]: https://github.com/google/googletest/blob/master/googletest/samples/sample8_unittest.cc "Parameterized Test example with multiple parameters"
+[sample7_unittest.cc]: https://github.com/google/googletest/blob/main/googletest/samples/sample7_unittest.cc "Parameterized Test example"
+[sample8_unittest.cc]: https://github.com/google/googletest/blob/main/googletest/samples/sample8_unittest.cc "Parameterized Test example with multiple parameters"

 ### Creating Value-Parameterized Abstract Tests

@ -1294,7 +1294,7 @@ TYPED_TEST(FooTest, HasPropertyA) { ... }

 You can see [sample6_unittest.cc] for a complete example.

-[sample6_unittest.cc]: https://github.com/google/googletest/blob/master/googletest/samples/sample6_unittest.cc "Typed Test example"
+[sample6_unittest.cc]: https://github.com/google/googletest/blob/main/googletest/samples/sample6_unittest.cc "Typed Test example"

 ## Type-Parameterized Tests

@ -1733,7 +1733,7 @@ You can do so by adding one line:
 Now, sit back and enjoy a completely different output from your tests. For more
 details, see [sample9_unittest.cc].

-[sample9_unittest.cc]: https://github.com/google/googletest/blob/master/googletest/samples/sample9_unittest.cc "Event listener example"
+[sample9_unittest.cc]: https://github.com/google/googletest/blob/main/googletest/samples/sample9_unittest.cc "Event listener example"

 You may append more than one listener to the list. When an `On*Start()` or
 `OnTestPartResult()` event is fired, the listeners will receive it in the order
@ -1760,7 +1760,7 @@ by the former.

 See [sample10_unittest.cc] for an example of a failure-raising listener.

-[sample10_unittest.cc]: https://github.com/google/googletest/blob/master/googletest/samples/sample10_unittest.cc "Failure-raising listener example"
+[sample10_unittest.cc]: https://github.com/google/googletest/blob/main/googletest/samples/sample10_unittest.cc "Failure-raising listener example"

 ## Running Test Programs: Advanced Options

--- a/docs/faq.md
+++ b/docs/faq.md
@ -267,7 +267,7 @@ If necessary, you can continue to derive test fixtures from a derived fixture.
 GoogleTest has no limit on how deep the hierarchy can be.

 For a complete example using derived test fixtures, see
-[sample5_unittest.cc](https://github.com/google/googletest/blob/master/googletest/samples/sample5_unittest.cc).
+[sample5_unittest.cc](https://github.com/google/googletest/blob/main/googletest/samples/sample5_unittest.cc).

 ## My compiler complains "void value not ignored as it ought to be." What does this mean?

--- a/docs/gmock_cook_book.md
+++ b/docs/gmock_cook_book.md
@ -1424,11 +1424,12 @@ Use `Pair` when comparing maps or other associative containers.
 {% raw %}

 ```cpp
-using testing::ElementsAre;
-using testing::Pair;
+using ::testing::UnorderedElementsAre;
+using ::testing::Pair;
 ...
-  std::map<string, int> m = {{"a", 1}, {"b", 2}, {"c", 3}};
-  EXPECT_THAT(m, ElementsAre(Pair("a", 1), Pair("b", 2), Pair("c", 3)));
+  absl::flat_hash_map<string, int> m = {{"a", 1}, {"b", 2}, {"c", 3}};
+  EXPECT_THAT(m, UnorderedElementsAre(
+      Pair("a", 1), Pair("b", 2), Pair("c", 3)));
 ```

 {% endraw %}
@ -1445,8 +1446,8 @@ using testing::Pair;
 *   If the container is passed by pointer instead of by reference, just write
    `Pointee(ElementsAre*(...))`.
 *   The order of elements *matters* for `ElementsAre*()`. If you are using it
-    with containers whose element order are undefined (e.g. `hash_map`) you
-    should use `WhenSorted` around `ElementsAre`.
+    with containers whose element order are undefined (such as a
+    `std::unordered_map`) you should use `UnorderedElementsAre`.

 ### Sharing Matchers

--- a/docs/quickstart-bazel.md
+++ b/docs/quickstart-bazel.md
@ -17,7 +17,7 @@ See [Supported Platforms](platforms.md) for more information about platforms
 compatible with GoogleTest.

 If you don't already have Bazel installed, see the
-[Bazel installation guide](https://docs.bazel.build/versions/main/install.html).
+[Bazel installation guide](https://bazel.build/install).

 {: .callout .note}
 Note: The terminal commands in this tutorial show a Unix shell prompt, but the
--- a/docs/reference/testing.md
+++ b/docs/reference/testing.md
@ -109,7 +109,7 @@ namespace:
 | `ValuesIn(container)` or `ValuesIn(begin,end)` | Yields values from a C-style array, an STL-style container, or an iterator range `[begin, end)`. |
 | `Bool()`                     | Yields sequence `{false, true}`.            |
 | `Combine(g1, g2, ..., gN)`   | Yields as `std::tuple` *n*-tuples all combinations (Cartesian product) of the values generated by the given *n* generators `g1`, `g2`, ..., `gN`. |
-
+| `ConvertGenerator<T>(g)`     | Yields values generated by generator `g`, `static_cast` to `T`. |
 The optional last argument *`name_generator`* is a function or functor that
 generates custom test name suffixes based on the test parameters. The function
 must accept an argument of type
--- a/docs/samples.md
+++ b/docs/samples.md
@ -1,7 +1,7 @@
 # Googletest Samples

 If you're like us, you'd like to look at
-[googletest samples.](https://github.com/google/googletest/tree/master/googletest/samples)
+[googletest samples.](https://github.com/google/googletest/blob/main/googletest/samples)
 The sample directory has a number of well-commented samples showing how to use a
 variety of googletest features.

--- a/googlemock/include/gmock/gmock-actions.h
+++ b/googlemock/include/gmock/gmock-actions.h
@ -122,7 +122,7 @@
 // MORE INFORMATION:
 //
 // To learn more about using these macros, please search for 'ACTION' on
-// https://github.com/google/googletest/blob/master/docs/gmock_cook_book.md
+// https://github.com/google/googletest/blob/main/docs/gmock_cook_book.md

 // IWYU pragma: private, include "gmock/gmock.h"
 // IWYU pragma: friend gmock/.*
@ -1428,8 +1428,10 @@ struct WithArgsAction {
                    // MSVC complains about the I parameter pack not being
                    // expanded (error C3520) despite it being expanded in the
                    // type alias.
-                    OnceAction<R(typename std::tuple_element<
-                                 I, std::tuple<Args...>>::type...)>>::value,
+                    // TupleElement is also an MSVC workaround.
+                    // See its definition for details.
+                    OnceAction<R(internal::TupleElement<
+                                 I, std::tuple<Args...>>...)>>::value,
                int>::type = 0>
  operator OnceAction<R(Args...)>() && {  // NOLINT
    struct OA {
@ -1453,8 +1455,10 @@ struct WithArgsAction {
                    // MSVC complains about the I parameter pack not being
                    // expanded (error C3520) despite it being expanded in the
                    // type alias.
-                    Action<R(typename std::tuple_element<
-                             I, std::tuple<Args...>>::type...)>>::value,
+                    // TupleElement is also an MSVC workaround.
+                    // See its definition for details.
+                    Action<R(internal::TupleElement<
+                             I, std::tuple<Args...>>...)>>::value,
                int>::type = 0>
  operator Action<R(Args...)>() const {  // NOLINT
    Action<InnerSignature<R, Args...>> converted(inner_action);
--- a/googlemock/include/gmock/gmock-function-mocker.h
+++ b/googlemock/include/gmock/gmock-function-mocker.h
@ -34,8 +34,8 @@
 // IWYU pragma: private, include "gmock/gmock.h"
 // IWYU pragma: friend gmock/.*

-#ifndef GOOGLEMOCK_INCLUDE_GMOCK_INTERNAL_GMOCK_FUNCTION_MOCKER_H_  // NOLINT
-#define GOOGLEMOCK_INCLUDE_GMOCK_INTERNAL_GMOCK_FUNCTION_MOCKER_H_  // NOLINT
+#ifndef GOOGLEMOCK_INCLUDE_GMOCK_GMOCK_FUNCTION_MOCKER_H_
+#define GOOGLEMOCK_INCLUDE_GMOCK_GMOCK_FUNCTION_MOCKER_H_

 #include <type_traits>  // IWYU pragma: keep
 #include <utility>      // IWYU pragma: keep
@ -511,4 +511,4 @@ using internal::FunctionMocker;
 #define GMOCK_MOCKER_(arity, constness, Method) \
  GTEST_CONCAT_TOKEN_(gmock##constness##arity##_##Method##_, __LINE__)

-#endif  // GOOGLEMOCK_INCLUDE_GMOCK_INTERNAL_GMOCK_FUNCTION_MOCKER_H_
+#endif  // GOOGLEMOCK_INCLUDE_GMOCK_GMOCK_FUNCTION_MOCKER_H_
--- a/googlemock/include/gmock/gmock-matchers.h
+++ b/googlemock/include/gmock/gmock-matchers.h
@ -240,7 +240,7 @@
 //
 // To learn more about using these macros, please search for 'MATCHER'
 // on
-// https://github.com/google/googletest/blob/master/docs/gmock_cook_book.md
+// https://github.com/google/googletest/blob/main/docs/gmock_cook_book.md
 //
 // This file also implements some commonly used argument matchers.  More
 // matchers can be defined by the user implementing the
@ -3240,6 +3240,16 @@ auto UnpackStructImpl(const T& t, MakeIndexSequence<17>, char) {
  const auto& [a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q] = t;
  return std::tie(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q);
 }
+template <typename T>
+auto UnpackStructImpl(const T& t, MakeIndexSequence<18>, char) {
+  const auto& [a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r] = t;
+  return std::tie(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r);
+}
+template <typename T>
+auto UnpackStructImpl(const T& t, MakeIndexSequence<19>, char) {
+  const auto& [a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s] = t;
+  return std::tie(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s);
+}
 #endif  // defined(__cpp_structured_bindings)

 template <size_t I, typename T>
@ -3306,8 +3316,8 @@ class FieldsAreMatcherImpl<Struct, IndexSequence<I...>>
    std::vector<StringMatchResultListener> inner_listener(sizeof...(I));

    VariadicExpand(
-        {failed_pos == ~size_t{} && !std::get<I>(matchers_).MatchAndExplain(
-                                        std::get<I>(tuple), &inner_listener[I])
+        {failed_pos == ~size_t{}&& !std::get<I>(matchers_).MatchAndExplain(
+                           std::get<I>(tuple), &inner_listener[I])
             ? failed_pos = I
             : 0 ...});
    if (failed_pos != ~size_t{}) {
--- a/googlemock/include/gmock/gmock-more-matchers.h
+++ b/googlemock/include/gmock/gmock-more-matchers.h
@ -40,6 +40,9 @@
 #ifndef GOOGLEMOCK_INCLUDE_GMOCK_GMOCK_MORE_MATCHERS_H_
 #define GOOGLEMOCK_INCLUDE_GMOCK_GMOCK_MORE_MATCHERS_H_

+#include <ostream>
+#include <string>
+
 #include "gmock/gmock-matchers.h"

 namespace testing {
@ -56,14 +59,42 @@ namespace testing {
 #endif
 #endif

-// Defines a matcher that matches an empty container. The container must
-// support both size() and empty(), which all STL-like containers provide.
-MATCHER(IsEmpty, negation ? "isn't empty" : "is empty") {
-  if (arg.empty()) {
-    return true;
+namespace internal {
+
+// Implements the polymorphic IsEmpty matcher, which
+// can be used as a Matcher<T> as long as T is either a container that defines
+// empty() and size() (e.g. std::vector or std::string), or a C-style string.
+class IsEmptyMatcher {
+ public:
+  // Matches anything that defines empty() and size().
+  template <typename MatcheeContainerType>
+  bool MatchAndExplain(const MatcheeContainerType& c,
+                       MatchResultListener* listener) const {
+    if (c.empty()) {
+      return true;
+    }
+    *listener << "whose size is " << c.size();
+    return false;
  }
-  *result_listener << "whose size is " << arg.size();
-  return false;
+
+  // Matches C-style strings.
+  bool MatchAndExplain(const char* s, MatchResultListener* listener) const {
+    return MatchAndExplain(std::string(s), listener);
+  }
+
+  // Describes what this matcher matches.
+  void DescribeTo(std::ostream* os) const { *os << "is empty"; }
+
+  void DescribeNegationTo(std::ostream* os) const { *os << "isn't empty"; }
+};
+
+}  // namespace internal
+
+// Creates a polymorphic matcher that matches an empty container or C-style
+// string. The container must support both size() and empty(), which all
+// STL-like containers provide.
+inline PolymorphicMatcher<internal::IsEmptyMatcher> IsEmpty() {
+  return MakePolymorphicMatcher(internal::IsEmptyMatcher());
 }

 // Define a matcher that matches a value that evaluates in boolean
--- a/googlemock/include/gmock/internal/gmock-internal-utils.h
+++ b/googlemock/include/gmock/internal/gmock-internal-utils.h
@ -290,13 +290,6 @@ class WithoutMatchers {
 // Internal use only: access the singleton instance of WithoutMatchers.
 GTEST_API_ WithoutMatchers GetWithoutMatchers();

-// Disable MSVC warnings for infinite recursion, since in this case the
-// recursion is unreachable.
-#ifdef _MSC_VER
-#pragma warning(push)
-#pragma warning(disable : 4717)
-#endif
-
 // Invalid<T>() is usable as an expression of type T, but will terminate
 // the program with an assertion failure if actually run.  This is useful
 // when a value of type T is needed for compilation, but the statement
@ -314,10 +307,6 @@ inline T Invalid() {
 #endif
 }

-#ifdef _MSC_VER
-#pragma warning(pop)
-#endif
-
 // Given a raw type (i.e. having no top-level reference or const
 // modifier) RawContainer that's either an STL-style container or a
 // native array, class StlContainerView<RawContainer> has the
@ -464,6 +453,13 @@ struct Function<R(Args...)> {
 template <typename R, typename... Args>
 constexpr size_t Function<R(Args...)>::ArgumentCount;

+// Workaround for MSVC error C2039: 'type': is not a member of 'std'
+// when std::tuple_element is used.
+// See: https://github.com/google/googletest/issues/3931
+// Can be replaced with std::tuple_element_t in C++14.
+template <size_t I, typename T>
+using TupleElement = typename std::tuple_element<I, T>::type;
+
 bool Base64Unescape(const std::string& encoded, std::string* decoded);

 #ifdef _MSC_VER
--- a/googlemock/src/gmock-internal-utils.cc
+++ b/googlemock/src/gmock-internal-utils.cc
@ -199,9 +199,10 @@ GTEST_API_ void IllegalDoDefault(const char* file, int line) {
 }

 constexpr char UnBase64Impl(char c, const char* const base64, char carry) {
-  return *base64 == 0   ? static_cast<char>(65)
-         : *base64 == c ? carry
-                        : UnBase64Impl(c, base64 + 1, carry + 1);
+  return *base64 == 0 ? static_cast<char>(65)
+         : *base64 == c
+             ? carry
+             : UnBase64Impl(c, base64 + 1, static_cast<char>(carry + 1));
 }

 template <size_t... I>
--- a/googlemock/src/gmock-spec-builders.cc
+++ b/googlemock/src/gmock-spec-builders.cc
@ -51,6 +51,9 @@
 #if GTEST_OS_CYGWIN || GTEST_OS_LINUX || GTEST_OS_MAC
 #include <unistd.h>  // NOLINT
 #endif
+#if GTEST_OS_QURT
+#include <qurt_event.h>
+#endif

 // Silence C4800 (C4800: 'int *const ': forcing value
 // to bool 'true' or 'false') for MSVC 15
@ -295,7 +298,7 @@ void ReportUninterestingCall(CallReaction reaction, const std::string& msg) {
              "call should not happen.  Do not suppress it by blindly adding "
              "an EXPECT_CALL() if you don't mean to enforce the call.  "
              "See "
-              "https://github.com/google/googletest/blob/master/docs/"
+              "https://github.com/google/googletest/blob/main/docs/"
              "gmock_cook_book.md#"
              "knowing-when-to-expect for details.\n",
          stack_frames_to_skip);
@ -521,8 +524,12 @@ class MockObjectRegistry {
      // RUN_ALL_TESTS() has already returned when this destructor is
      // called.  Therefore we cannot use the normal Google Test
      // failure reporting mechanism.
+#if GTEST_OS_QURT
+      qurt_exception_raise_fatal();
+#else
      _exit(1);  // We cannot call exit() as it is not reentrant and
                 // may already have been called.
+#endif
    }
  }

--- a/googlemock/test/gmock-matchers-comparisons_test.cc
+++ b/googlemock/test/gmock-matchers-comparisons_test.cc
@ -39,6 +39,8 @@
 #pragma warning(disable : 4100)
 #endif

+#include <vector>
+
 #include "test/gmock-matchers_test.h"

 namespace testing {
@ -983,6 +985,30 @@ TEST(ComparisonBaseTest, WorksWithMoveOnly) {
  helper.Call(MoveOnly(1));
 }

+TEST(IsEmptyTest, MatchesContainer) {
+  const Matcher<std::vector<int>> m = IsEmpty();
+  std::vector<int> a = {};
+  std::vector<int> b = {1};
+  EXPECT_TRUE(m.Matches(a));
+  EXPECT_FALSE(m.Matches(b));
+}
+
+TEST(IsEmptyTest, MatchesStdString) {
+  const Matcher<std::string> m = IsEmpty();
+  std::string a = "z";
+  std::string b = "";
+  EXPECT_FALSE(m.Matches(a));
+  EXPECT_TRUE(m.Matches(b));
+}
+
+TEST(IsEmptyTest, MatchesCString) {
+  const Matcher<const char*> m = IsEmpty();
+  const char a[] = "";
+  const char b[] = "x";
+  EXPECT_TRUE(m.Matches(a));
+  EXPECT_FALSE(m.Matches(b));
+}
+
 // Tests that IsNull() matches any NULL pointer of any type.
 TEST(IsNullTest, MatchesNullPointer) {
  Matcher<int*> m1 = IsNull();
@ -1684,6 +1710,21 @@ TEST(FieldsAreTest, StructuredBindings) {
  };
  EXPECT_THAT(MyVarType16{},
              FieldsAre(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0));
+  struct MyVarType17 {
+    int a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q;
+  };
+  EXPECT_THAT(MyVarType17{},
+              FieldsAre(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0));
+  struct MyVarType18 {
+    int a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r;
+  };
+  EXPECT_THAT(MyVarType18{},
+              FieldsAre(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0));
+  struct MyVarType19 {
+    int a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s;
+  };
+  EXPECT_THAT(MyVarType19{}, FieldsAre(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+                                       0, 0, 0, 0, 0));
 }
 #endif

--- a/googlemock/test/gmock-spec-builders_test.cc
+++ b/googlemock/test/gmock-spec-builders_test.cc
@ -2059,7 +2059,7 @@ class GMockVerboseFlagTest : public VerboseFlagPreservingFixture {
        "call should not happen.  Do not suppress it by blindly adding "
        "an EXPECT_CALL() if you don't mean to enforce the call.  "
        "See "
-        "https://github.com/google/googletest/blob/master/docs/"
+        "https://github.com/google/googletest/blob/main/docs/"
        "gmock_cook_book.md#"
        "knowing-when-to-expect for details.";

--- a/googlemock/test/gmock_output_test_golden.txt
+++ b/googlemock/test/gmock_output_test_golden.txt
@ -75,14 +75,14 @@ GMOCK WARNING:
 Uninteresting mock function call - returning default value.
    Function call: Bar2(0, 1)
          Returns: false
-NOTE: You can safely ignore the above warning unless this call should not happen.  Do not suppress it by blindly adding an EXPECT_CALL() if you don't mean to enforce the call.  See https://github.com/google/googletest/blob/master/docs/gmock_cook_book.md#knowing-when-to-expect for details.
+NOTE: You can safely ignore the above warning unless this call should not happen.  Do not suppress it by blindly adding an EXPECT_CALL() if you don't mean to enforce the call.  See https://github.com/google/googletest/blob/main/docs/gmock_cook_book.md#knowing-when-to-expect for details.
 [       OK ] GMockOutputTest.UninterestingCall
 [ RUN      ] GMockOutputTest.UninterestingCallToVoidFunction

 GMOCK WARNING:
 Uninteresting mock function call - returning directly.
    Function call: Bar3(0, 1)
-NOTE: You can safely ignore the above warning unless this call should not happen.  Do not suppress it by blindly adding an EXPECT_CALL() if you don't mean to enforce the call.  See https://github.com/google/googletest/blob/master/docs/gmock_cook_book.md#knowing-when-to-expect for details.
+NOTE: You can safely ignore the above warning unless this call should not happen.  Do not suppress it by blindly adding an EXPECT_CALL() if you don't mean to enforce the call.  See https://github.com/google/googletest/blob/main/docs/gmock_cook_book.md#knowing-when-to-expect for details.
 [       OK ] GMockOutputTest.UninterestingCallToVoidFunction
 [ RUN      ] GMockOutputTest.RetiredExpectation
 unknown file: Failure
@ -266,14 +266,14 @@ Uninteresting mock function call - taking default action specified at:
 FILE:#:
    Function call: Bar2(2, 2)
          Returns: true
-NOTE: You can safely ignore the above warning unless this call should not happen.  Do not suppress it by blindly adding an EXPECT_CALL() if you don't mean to enforce the call.  See https://github.com/google/googletest/blob/master/docs/gmock_cook_book.md#knowing-when-to-expect for details.
+NOTE: You can safely ignore the above warning unless this call should not happen.  Do not suppress it by blindly adding an EXPECT_CALL() if you don't mean to enforce the call.  See https://github.com/google/googletest/blob/main/docs/gmock_cook_book.md#knowing-when-to-expect for details.

 GMOCK WARNING:
 Uninteresting mock function call - taking default action specified at:
 FILE:#:
    Function call: Bar2(1, 1)
          Returns: false
-NOTE: You can safely ignore the above warning unless this call should not happen.  Do not suppress it by blindly adding an EXPECT_CALL() if you don't mean to enforce the call.  See https://github.com/google/googletest/blob/master/docs/gmock_cook_book.md#knowing-when-to-expect for details.
+NOTE: You can safely ignore the above warning unless this call should not happen.  Do not suppress it by blindly adding an EXPECT_CALL() if you don't mean to enforce the call.  See https://github.com/google/googletest/blob/main/docs/gmock_cook_book.md#knowing-when-to-expect for details.
 [       OK ] GMockOutputTest.UninterestingCallWithDefaultAction
 [ RUN      ] GMockOutputTest.ExplicitActionsRunOutWithDefaultAction

--- a/googletest/CMakeLists.txt
+++ b/googletest/CMakeLists.txt
@ -125,6 +125,22 @@ include_directories(${gtest_build_include_dirs})
 # aggressive about warnings.
 cxx_library(gtest "${cxx_strict}" src/gtest-all.cc)
 set_target_properties(gtest PROPERTIES VERSION ${GOOGLETEST_VERSION})
+if(GTEST_HAS_ABSL)
+  target_compile_definitions(gtest PUBLIC GTEST_HAS_ABSL=1)
+  target_link_libraries(gtest PUBLIC
+    absl::failure_signal_handler
+    absl::stacktrace
+    absl::symbolize
+    absl::flags_parse
+    absl::flags_reflection
+    absl::flags_usage
+    absl::strings
+    absl::any
+    absl::optional
+    absl::variant
+    re2::re2
+  )
+endif()
 cxx_library(gtest_main "${cxx_strict}" src/gtest_main.cc)
 set_target_properties(gtest_main PROPERTIES VERSION ${GOOGLETEST_VERSION})
 # If the CMake version supports it, attach header directory information
--- a/googletest/README.md
+++ b/googletest/README.md
@ -9,7 +9,7 @@ depends on which build system you use, and is usually straightforward.
 ### Build with CMake

 GoogleTest comes with a CMake build script
-([CMakeLists.txt](https://github.com/google/googletest/blob/master/CMakeLists.txt))
+([CMakeLists.txt](https://github.com/google/googletest/blob/main/CMakeLists.txt))
 that can be used on a wide range of platforms ("C" stands for cross-platform.).
 If you don't have CMake installed already, you can download it for free from
 <http://www.cmake.org/>.
@ -25,7 +25,7 @@ When building GoogleTest as a standalone project, the typical workflow starts
 with

 ```
-git clone https://github.com/google/googletest.git -b release-1.12.0
+git clone https://github.com/google/googletest.git -b release-1.12.1
 cd googletest        # Main directory of the cloned repository.
 mkdir build          # Create a directory to hold the build output.
 cd build
@ -140,7 +140,7 @@ command line. Generally, these macros are named like `GTEST_XYZ` and you define
 them to either 1 or 0 to enable or disable a certain feature.

 We list the most frequently used macros below. For a complete list, see file
-[include/gtest/internal/gtest-port.h](https://github.com/google/googletest/blob/master/googletest/include/gtest/internal/gtest-port.h).
+[include/gtest/internal/gtest-port.h](https://github.com/google/googletest/blob/main/googletest/include/gtest/internal/gtest-port.h).

 ### Multi-threaded Tests

--- a/googletest/cmake/internal_utils.cmake
+++ b/googletest/cmake/internal_utils.cmake
@ -21,8 +21,9 @@ endif (POLICY CMP0054)
 # This must be a macro(), as inside a function string() can only
 # update variables in the function scope.
 macro(fix_default_compiler_settings_)
-  if (MSVC)
-    # For MSVC, CMake sets certain flags to defaults we want to override.
+  if (CMAKE_CXX_COMPILER_ID MATCHES "MSVC|Clang")
+    # For MSVC and Clang, CMake sets certain flags to defaults we want to
+    # override.
    # This replacement code is taken from sample in the CMake Wiki at
    # https://gitlab.kitware.com/cmake/community/wikis/FAQ#dynamic-replace.
    foreach (flag_var
@ -39,6 +40,10 @@ macro(fix_default_compiler_settings_)
        # on CRT DLLs being available. CMake always defaults to using shared
        # CRT libraries, so we override that default here.
        string(REPLACE "/MD" "-MT" ${flag_var} "${${flag_var}}")
+
+        # When using Ninja with Clang, static builds pass -D_DLL on Windows.
+        # This is incorrect and should not happen, so we fix that here.
+        string(REPLACE "-D_DLL" "" ${flag_var} "${${flag_var}}")
      endif()

      # We prefer more strict warning checking for building Google Test.
--- a/googletest/include/gtest/gtest-matchers.h
+++ b/googletest/include/gtest/gtest-matchers.h
@ -842,7 +842,7 @@ class MatchesRegexMatcher {
  template <class MatcheeStringType>
  bool MatchAndExplain(const MatcheeStringType& s,
                       MatchResultListener* /* listener */) const {
-    const std::string& s2(s);
+    const std::string s2(s);
    return full_match_ ? RE::FullMatch(s2, *regex_)
                       : RE::PartialMatch(s2, *regex_);
  }
--- a/googletest/include/gtest/gtest-param-test.h
+++ b/googletest/include/gtest/gtest-param-test.h
@ -407,9 +407,49 @@ internal::CartesianProductHolder<Generator...> Combine(const Generator&... g) {
  return internal::CartesianProductHolder<Generator...>(g...);
 }

+// ConvertGenerator() wraps a parameter generator in order to cast each prduced
+// value through a known type before supplying it to the test suite
+//
+// Synopsis:
+// ConvertGenerator<T>(gen)
+//   - returns a generator producing the same elements as generated by gen, but
+//     each element is static_cast to type T before being returned
+//
+// It is useful when using the Combine() function to get the generated
+// parameters in a custom type instead of std::tuple
+//
+// Example:
+//
+// This will instantiate tests in test suite AnimalTest each one with
+// the parameter values tuple("cat", BLACK), tuple("cat", WHITE),
+// tuple("dog", BLACK), and tuple("dog", WHITE):
+//
+// enum Color { BLACK, GRAY, WHITE };
+// struct ParamType {
+//   using TupleT = std::tuple<const char*, Color>;
+//   std::string animal;
+//   Color color;
+//   ParamType(TupleT t) : animal(std::get<0>(t)), color(std::get<1>(t)) {}
+// };
+// class AnimalTest
+//     : public testing::TestWithParam<ParamType> {...};
+//
+// TEST_P(AnimalTest, AnimalLooksNice) {...}
+//
+// INSTANTIATE_TEST_SUITE_P(AnimalVariations, AnimalTest,
+//                          ConvertGenerator<ParamType::TupleT>(
+//                              Combine(Values("cat", "dog"),
+//                                      Values(BLACK, WHITE))));
+//
+template <typename T>
+internal::ParamConverterGenerator<T> ConvertGenerator(
+    internal::ParamGenerator<T> gen) {
+  return internal::ParamConverterGenerator<T>(gen);
+}
+
 #define TEST_P(test_suite_name, test_name)                                     \
  class GTEST_TEST_CLASS_NAME_(test_suite_name, test_name)                     \
-      : public test_suite_name {                                               \
+      : public test_suite_name, private ::testing::internal::GTestNonCopyable {\
   public:                                                                     \
    GTEST_TEST_CLASS_NAME_(test_suite_name, test_name)() {}                    \
    void TestBody() override;                                                  \
@ -429,11 +469,6 @@ internal::CartesianProductHolder<Generator...> Combine(const Generator&... g) {
      return 0;                                                                \
    }                                                                          \
    static int gtest_registering_dummy_ GTEST_ATTRIBUTE_UNUSED_;               \
-    GTEST_TEST_CLASS_NAME_(test_suite_name, test_name)                         \
-    (const GTEST_TEST_CLASS_NAME_(test_suite_name, test_name) &) = delete;     \
-    GTEST_TEST_CLASS_NAME_(test_suite_name, test_name) & operator=(            \
-        const GTEST_TEST_CLASS_NAME_(test_suite_name,                          \
-                                     test_name) &) = delete; /* NOLINT */      \
  };                                                                           \
  int GTEST_TEST_CLASS_NAME_(test_suite_name,                                  \
                             test_name)::gtest_registering_dummy_ =            \
--- a/googletest/include/gtest/gtest-printers.h
+++ b/googletest/include/gtest/gtest-printers.h
@ -384,7 +384,7 @@ GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(const char32_t);

 GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(char, ::std::string);
 GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const char, ::std::string);
-#ifdef __cpp_char8_t
+#ifdef __cpp_lib_char8_t
 GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(char8_t, ::std::u8string);
 GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const char8_t, ::std::u8string);
 #endif
@ -556,7 +556,7 @@ inline void PrintTo(const ::std::string& s, ::std::ostream* os) {
 }

 // Overloads for ::std::u8string
-#ifdef __cpp_char8_t
+#ifdef __cpp_lib_char8_t
 GTEST_API_ void PrintU8StringTo(const ::std::u8string& s, ::std::ostream* os);
 inline void PrintTo(const ::std::u8string& s, ::std::ostream* os) {
  PrintU8StringTo(s, os);
@ -891,6 +891,13 @@ class UniversalTersePrinter<T&> {
    UniversalPrint(value, os);
  }
 };
+template <typename T>
+class UniversalTersePrinter<std::reference_wrapper<T>> {
+ public:
+  static void Print(std::reference_wrapper<T> value, ::std::ostream* os) {
+    UniversalTersePrinter<T>::Print(value.get(), os);
+  }
+};
 template <typename T, size_t N>
 class UniversalTersePrinter<T[N]> {
 public:
--- a/googletest/include/gtest/gtest.h
+++ b/googletest/include/gtest/gtest.h
@ -190,6 +190,17 @@ void ReportFailureInUnknownLocation(TestPartResult::Type result_type,
                                    const std::string& message);
 std::set<std::string>* GetIgnoredParameterizedTestSuites();

+// A base class that prevents subclasses from being copyable.
+// We do this instead of using '= delete' so as to avoid triggering warnings
+// inside user code regarding any of our declarations.
+class GTestNonCopyable {
+ public:
+  GTestNonCopyable() = default;
+  GTestNonCopyable(const GTestNonCopyable &) = delete;
+  GTestNonCopyable &operator=(const GTestNonCopyable &) = delete;
+  ~GTestNonCopyable() = default;
+};
+
 }  // namespace internal

 // The friend relationship of some of these classes is cyclic.
@ -1625,7 +1636,7 @@ class GTEST_API_ AssertHelper {
 // the GetParam() method.
 //
 // Use it with one of the parameter generator defining functions, like Range(),
-// Values(), ValuesIn(), Bool(), and Combine().
+// Values(), ValuesIn(), Bool(), Combine(), and ConvertGenerator<T>().
 //
 // class FooTest : public ::testing::TestWithParam<int> {
 //  protected:
--- a/googletest/include/gtest/internal/gtest-filepath.h
+++ b/googletest/include/gtest/internal/gtest-filepath.h
@ -199,6 +199,16 @@ class GTEST_API_ FilePath {
  // separators. Returns NULL if no path separator was found.
  const char* FindLastPathSeparator() const;

+  // Returns the length of the path root, including the directory separator at
+  // the end of the prefix. Returns zero by definition if the path is relative.
+  // Examples:
+  // - [Windows] "..\Sibling" => 0
+  // - [Windows] "\Windows" => 1
+  // - [Windows] "C:/Windows\Notepad.exe" => 3
+  // - [Windows] "\\Host\Share\C$/Windows" => 13
+  // - [UNIX] "/bin" => 1
+  size_t CalculateRootLength() const;
+
  std::string pathname_;
 };  // class FilePath

--- a/googletest/include/gtest/internal/gtest-param-util.h
+++ b/googletest/include/gtest/internal/gtest-param-util.h
@ -950,6 +950,78 @@ class CartesianProductHolder {
  std::tuple<Gen...> generators_;
 };

+template <typename From, typename To>
+class ParamGeneratorConverter : public ParamGeneratorInterface<To> {
+ public:
+  ParamGeneratorConverter(ParamGenerator<From> gen) // NOLINT
+      : generator_(std::move(gen)) {}
+
+  ParamIteratorInterface<To>* Begin() const override {
+    return new Iterator(this, generator_.begin(), generator_.end());
+  }
+  ParamIteratorInterface<To>* End() const override {
+    return new Iterator(this, generator_.end(), generator_.end());
+  }
+
+ private:
+  class Iterator : public ParamIteratorInterface<To> {
+   public:
+    Iterator(const ParamGeneratorInterface<To>* base, ParamIterator<From> it,
+             ParamIterator<From> end)
+        : base_(base), it_(it), end_(end) {
+      if (it_ != end_) value_ = std::make_shared<To>(static_cast<To>(*it_));
+    }
+    ~Iterator() override {}
+
+    const ParamGeneratorInterface<To>* BaseGenerator() const override {
+      return base_;
+    }
+    void Advance() override {
+      ++it_;
+      if (it_ != end_) value_ = std::make_shared<To>(static_cast<To>(*it_));
+    }
+    ParamIteratorInterface<To>* Clone() const override {
+      return new Iterator(*this);
+    }
+    const To* Current() const override { return value_.get(); }
+    bool Equals(const ParamIteratorInterface<To>& other) const override {
+      // Having the same base generator guarantees that the other
+      // iterator is of the same type and we can downcast.
+      GTEST_CHECK_(BaseGenerator() == other.BaseGenerator())
+          << "The program attempted to compare iterators "
+          << "from different generators." << std::endl;
+      const ParamIterator<From> other_it =
+          CheckedDowncastToActualType<const Iterator>(&other)->it_;
+      return it_ == other_it;
+    }
+
+   private:
+    Iterator(const Iterator& other) = default;
+
+    const ParamGeneratorInterface<To>* const base_;
+    ParamIterator<From> it_;
+    ParamIterator<From> end_;
+    std::shared_ptr<To> value_;
+  };  // class ParamGeneratorConverter::Iterator
+
+  ParamGenerator<From> generator_;
+};  // class ParamGeneratorConverter
+
+template <class Gen>
+class ParamConverterGenerator {
+ public:
+  ParamConverterGenerator(ParamGenerator<Gen> g)  // NOLINT
+      : generator_(std::move(g)) {}
+
+  template <typename T>
+  operator ParamGenerator<T>() const {  // NOLINT
+    return ParamGenerator<T>(new ParamGeneratorConverter<Gen, T>(generator_));
+  }
+
+ private:
+  ParamGenerator<Gen> generator_;
+};
+
 }  // namespace internal
 }  // namespace testing

--- a/googletest/include/gtest/internal/gtest-port-arch.h
+++ b/googletest/include/gtest/internal/gtest-port-arch.h
@ -111,6 +111,8 @@
 #define GTEST_OS_ESP32 1
 #elif defined(__XTENSA__)
 #define GTEST_OS_XTENSA 1
+#elif defined(__hexagon__)
+#define GTEST_OS_QURT 1
 #endif  // __CYGWIN__

 #endif  // GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_ARCH_H_
--- a/googletest/include/gtest/internal/gtest-port.h
+++ b/googletest/include/gtest/internal/gtest-port.h
@ -385,7 +385,8 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 // On Android, <regex.h> is only available starting with Gingerbread.
 #define GTEST_HAS_POSIX_RE (__ANDROID_API__ >= 9)
 #else
-#define GTEST_HAS_POSIX_RE (!GTEST_OS_WINDOWS && !GTEST_OS_XTENSA)
+#define GTEST_HAS_POSIX_RE \
+  !(GTEST_OS_WINDOWS || GTEST_OS_XTENSA || GTEST_OS_QURT)
 #endif
 #endif

@ -457,7 +458,8 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 // no support for it at least as recent as Froyo (2.2).
 #define GTEST_HAS_STD_WSTRING                                         \
  (!(GTEST_OS_LINUX_ANDROID || GTEST_OS_CYGWIN || GTEST_OS_SOLARIS || \
-     GTEST_OS_HAIKU || GTEST_OS_ESP32 || GTEST_OS_ESP8266 || GTEST_OS_XTENSA))
+     GTEST_OS_HAIKU || GTEST_OS_ESP32 || GTEST_OS_ESP8266 ||          \
+     GTEST_OS_XTENSA || GTEST_OS_QURT))

 #endif  // GTEST_HAS_STD_WSTRING

@ -578,9 +580,10 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 // output correctness and to implement death tests.
 #ifndef GTEST_HAS_STREAM_REDIRECTION
 // By default, we assume that stream redirection is supported on all
-// platforms except known mobile ones.
-#if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_WINDOWS_PHONE || \
-    GTEST_OS_WINDOWS_RT || GTEST_OS_ESP8266 || GTEST_OS_XTENSA
+// platforms except known mobile / embedded ones.
+#if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_WINDOWS_PHONE ||          \
+    GTEST_OS_WINDOWS_RT || GTEST_OS_ESP8266 || GTEST_OS_XTENSA || \
+    GTEST_OS_QURT
 #define GTEST_HAS_STREAM_REDIRECTION 0
 #else
 #define GTEST_HAS_STREAM_REDIRECTION 1
@ -639,6 +642,32 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
  default:  // NOLINT
 #endif

+// GTEST_HAVE_ATTRIBUTE_
+//
+// A function-like feature checking macro that is a wrapper around
+// `__has_attribute`, which is defined by GCC 5+ and Clang and evaluates to a
+// nonzero constant integer if the attribute is supported or 0 if not.
+//
+// It evaluates to zero if `__has_attribute` is not defined by the compiler.
+//
+// GCC: https://gcc.gnu.org/gcc-5/changes.html
+// Clang: https://clang.llvm.org/docs/LanguageExtensions.html
+#ifdef __has_attribute
+#define GTEST_HAVE_ATTRIBUTE_(x) __has_attribute(x)
+#else
+#define GTEST_HAVE_ATTRIBUTE_(x) 0
+#endif
+
+// GTEST_HAVE_FEATURE_
+//
+// A function-like feature checking macro that is a wrapper around
+// `__has_feature`.
+#ifdef __has_feature
+#define GTEST_HAVE_FEATURE_(x) __has_feature(x)
+#else
+#define GTEST_HAVE_FEATURE_(x) 0
+#endif
+
 // Use this annotation at the end of a struct/class definition to
 // prevent the compiler from optimizing away instances that are never
 // used.  This is useful when all interesting logic happens inside the
@ -650,30 +679,22 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 //
 // Also use it after a variable or parameter declaration to tell the
 // compiler the variable/parameter does not have to be used.
-#if defined(__GNUC__) && !defined(COMPILER_ICC)
+#if GTEST_HAVE_ATTRIBUTE_(unused)
 #define GTEST_ATTRIBUTE_UNUSED_ __attribute__((unused))
-#elif defined(__clang__)
-#if __has_attribute(unused)
-#define GTEST_ATTRIBUTE_UNUSED_ __attribute__((unused))
-#endif
-#endif
-#ifndef GTEST_ATTRIBUTE_UNUSED_
+#else
 #define GTEST_ATTRIBUTE_UNUSED_
 #endif

 // Use this annotation before a function that takes a printf format string.
-#if (defined(__GNUC__) || defined(__clang__)) && !defined(COMPILER_ICC)
-#if defined(__MINGW_PRINTF_FORMAT)
+#if GTEST_HAVE_ATTRIBUTE_(format) && defined(__MINGW_PRINTF_FORMAT)
 // MinGW has two different printf implementations. Ensure the format macro
 // matches the selected implementation. See
 // https://sourceforge.net/p/mingw-w64/wiki2/gnu%20printf/.
 #define GTEST_ATTRIBUTE_PRINTF_(string_index, first_to_check) \
-  __attribute__((                                             \
-      __format__(__MINGW_PRINTF_FORMAT, string_index, first_to_check)))
-#else
-#define GTEST_ATTRIBUTE_PRINTF_(string_index, first_to_check) \
-  __attribute__((__format__(__printf__, string_index, first_to_check)))
-#endif
+  __attribute__((format(__MINGW_PRINTF_FORMAT, string_index, first_to_check)))
+#elif GTEST_HAVE_ATTRIBUTE_(format)
+#define GTEST_ATTRIBUTE_PRINTF_(string_index, first_to_check)   \
+  __attribute__((format(printf, string_index, first_to_check)))
 #else
 #define GTEST_ATTRIBUTE_PRINTF_(string_index, first_to_check)
 #endif
@ -683,11 +704,11 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 // following the argument list:
 //
 //   Sprocket* AllocateSprocket() GTEST_MUST_USE_RESULT_;
-#if defined(__GNUC__) && !defined(COMPILER_ICC)
+#if GTEST_HAVE_ATTRIBUTE_(warn_unused_result)
 #define GTEST_MUST_USE_RESULT_ __attribute__((warn_unused_result))
 #else
 #define GTEST_MUST_USE_RESULT_
-#endif  // __GNUC__ && !COMPILER_ICC
+#endif

 // MS C++ compiler emits warning when a conditional expression is compile time
 // constant. In some contexts this warning is false positive and needs to be
@ -743,7 +764,7 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 #elif GTEST_CREATE_SHARED_LIBRARY
 #define GTEST_API_ __declspec(dllexport)
 #endif
-#elif __GNUC__ >= 4 || defined(__clang__)
+#elif GTEST_HAVE_ATTRIBUTE_(visibility)
 #define GTEST_API_ __attribute__((visibility("default")))
 #endif  // _MSC_VER

@ -757,20 +778,17 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 #define GTEST_DEFAULT_DEATH_TEST_STYLE "fast"
 #endif  // GTEST_DEFAULT_DEATH_TEST_STYLE

-#ifdef __GNUC__
+#if GTEST_HAVE_ATTRIBUTE_(noinline)
 // Ask the compiler to never inline a given function.
 #define GTEST_NO_INLINE_ __attribute__((noinline))
 #else
 #define GTEST_NO_INLINE_
 #endif

-#if defined(__clang__)
-// Nested ifs to avoid triggering MSVC warning.
-#if __has_attribute(disable_tail_calls)
+#if GTEST_HAVE_ATTRIBUTE_(disable_tail_calls)
 // Ask the compiler not to perform tail call optimization inside
 // the marked function.
 #define GTEST_NO_TAIL_CALL_ __attribute__((disable_tail_calls))
-#endif
 #elif __GNUC__
 #define GTEST_NO_TAIL_CALL_ \
  __attribute__((optimize("no-optimize-sibling-calls")))
@ -789,50 +807,35 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;

 // A function level attribute to disable checking for use of uninitialized
 // memory when built with MemorySanitizer.
-#if defined(__clang__)
-#if __has_feature(memory_sanitizer)
+#if GTEST_HAVE_ATTRIBUTE_(no_sanitize_memory)
 #define GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_ __attribute__((no_sanitize_memory))
 #else
 #define GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_
-#endif  // __has_feature(memory_sanitizer)
-#else
-#define GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_
-#endif  // __clang__
+#endif

 // A function level attribute to disable AddressSanitizer instrumentation.
-#if defined(__clang__)
-#if __has_feature(address_sanitizer)
+#if GTEST_HAVE_ATTRIBUTE_(no_sanitize_address)
 #define GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_ \
  __attribute__((no_sanitize_address))
 #else
 #define GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_
-#endif  // __has_feature(address_sanitizer)
-#else
-#define GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_
-#endif  // __clang__
+#endif

 // A function level attribute to disable HWAddressSanitizer instrumentation.
-#if defined(__clang__)
-#if __has_feature(hwaddress_sanitizer)
+#if GTEST_HAVE_FEATURE_(hwaddress_sanitizer) && \
+    GTEST_HAVE_ATTRIBUTE_(no_sanitize)
 #define GTEST_ATTRIBUTE_NO_SANITIZE_HWADDRESS_ \
  __attribute__((no_sanitize("hwaddress")))
 #else
 #define GTEST_ATTRIBUTE_NO_SANITIZE_HWADDRESS_
-#endif  // __has_feature(hwaddress_sanitizer)
-#else
-#define GTEST_ATTRIBUTE_NO_SANITIZE_HWADDRESS_
-#endif  // __clang__
+#endif

 // A function level attribute to disable ThreadSanitizer instrumentation.
-#if defined(__clang__)
-#if __has_feature(thread_sanitizer)
-#define GTEST_ATTRIBUTE_NO_SANITIZE_THREAD_ __attribute__((no_sanitize_thread))
+#if GTEST_HAVE_ATTRIBUTE_(no_sanitize_thread)
+#define GTEST_ATTRIBUTE_NO_SANITIZE_THREAD_ __attribute((no_sanitize_thread))
 #else
 #define GTEST_ATTRIBUTE_NO_SANITIZE_THREAD_
-#endif  // __has_feature(thread_sanitizer)
-#else
-#define GTEST_ATTRIBUTE_NO_SANITIZE_THREAD_
-#endif  // __clang__
+#endif

 namespace testing {

@ -2019,7 +2022,12 @@ inline int StrCaseCmp(const char* s1, const char* s2) {
  return strcasecmp(s1, s2);
 }
 inline char* StrDup(const char* src) { return strdup(src); }
+#if GTEST_OS_QURT
+// QuRT doesn't support any directory functions, including rmdir
+inline int RmDir(const char*) { return 0; }
+#else
 inline int RmDir(const char* dir) { return rmdir(dir); }
+#endif
 inline bool IsDir(const StatStruct& st) { return S_ISDIR(st.st_mode); }

 #endif  // GTEST_OS_WINDOWS
@ -2043,8 +2051,9 @@ GTEST_DISABLE_MSC_DEPRECATED_PUSH_()
 // StrError() aren't needed on Windows CE at this time and thus not
 // defined there.

-#if !GTEST_OS_WINDOWS_MOBILE && !GTEST_OS_WINDOWS_PHONE && \
-    !GTEST_OS_WINDOWS_RT && !GTEST_OS_ESP8266 && !GTEST_OS_XTENSA
+#if !GTEST_OS_WINDOWS_MOBILE && !GTEST_OS_WINDOWS_PHONE &&           \
+    !GTEST_OS_WINDOWS_RT && !GTEST_OS_ESP8266 && !GTEST_OS_XTENSA && \
+    !GTEST_OS_QURT
 inline int ChDir(const char* dir) { return chdir(dir); }
 #endif
 inline FILE* FOpen(const char* path, const char* mode) {
@ -2058,14 +2067,14 @@ inline FILE* FOpen(const char* path, const char* mode) {
  return fopen(path, mode);
 #endif  // GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_MINGW
 }
-#if !GTEST_OS_WINDOWS_MOBILE
+#if !GTEST_OS_WINDOWS_MOBILE && !GTEST_OS_QURT
 inline FILE* FReopen(const char* path, const char* mode, FILE* stream) {
  return freopen(path, mode, stream);
 }
 inline FILE* FDOpen(int fd, const char* mode) { return fdopen(fd, mode); }
 #endif
 inline int FClose(FILE* fp) { return fclose(fp); }
-#if !GTEST_OS_WINDOWS_MOBILE
+#if !GTEST_OS_WINDOWS_MOBILE && !GTEST_OS_QURT
 inline int Read(int fd, void* buf, unsigned int count) {
  return static_cast<int>(read(fd, buf, count));
 }
@ -2076,8 +2085,9 @@ inline int Close(int fd) { return close(fd); }
 inline const char* StrError(int errnum) { return strerror(errnum); }
 #endif
 inline const char* GetEnv(const char* name) {
-#if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_WINDOWS_PHONE || \
-    GTEST_OS_WINDOWS_RT || GTEST_OS_ESP8266 || GTEST_OS_XTENSA
+#if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_WINDOWS_PHONE ||          \
+    GTEST_OS_WINDOWS_RT || GTEST_OS_ESP8266 || GTEST_OS_XTENSA || \
+    GTEST_OS_QURT
  // We are on an embedded platform, which has no environment variables.
  static_cast<void>(name);  // To prevent 'unused argument' warning.
  return nullptr;
--- a/googletest/src/gtest-death-test.cc
+++ b/googletest/src/gtest-death-test.cc
@ -249,7 +249,7 @@ static std::string DeathTestThreadWarning(size_t thread_count) {
    msg << "detected " << thread_count << " threads.";
  }
  msg << " See "
-         "https://github.com/google/googletest/blob/master/docs/"
+         "https://github.com/google/googletest/blob/main/docs/"
         "advanced.md#death-tests-and-threads"
      << " for more explanation and suggested solutions, especially if"
      << " this is the last message you see before your test times out.";
@ -284,7 +284,7 @@ enum DeathTestOutcome { IN_PROGRESS, DIED, LIVED, RETURNED, THREW };
 // message is propagated back to the parent process.  Otherwise, the
 // message is simply printed to stderr.  In either case, the program
 // then exits with status 1.
-static void DeathTestAbort(const std::string& message) {
+[[noreturn]] static void DeathTestAbort(const std::string& message) {
  // On a POSIX system, this function may be called from a threadsafe-style
  // death test child process, which operates on a very small stack.  Use
  // the heap for any additional non-minuscule memory requirements.
--- a/googletest/src/gtest-filepath.cc
+++ b/googletest/src/gtest-filepath.cc
@ -96,7 +96,7 @@ static bool IsPathSeparator(char c) {
 FilePath FilePath::GetCurrentDir() {
 #if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_WINDOWS_PHONE ||         \
    GTEST_OS_WINDOWS_RT || GTEST_OS_ESP8266 || GTEST_OS_ESP32 || \
-    GTEST_OS_XTENSA
+    GTEST_OS_XTENSA || GTEST_OS_QURT
  // These platforms do not have a current directory, so we just return
  // something reasonable.
  return FilePath(kCurrentDirectoryString);
@ -145,6 +145,45 @@ const char* FilePath::FindLastPathSeparator() const {
  return last_sep;
 }

+size_t FilePath::CalculateRootLength() const {
+  const auto &path = pathname_;
+  auto s = path.begin();
+  auto end = path.end();
+#if GTEST_OS_WINDOWS
+  if (end - s >= 2 && s[1] == ':' &&
+      (end - s == 2 || IsPathSeparator(s[2])) &&
+      (('A' <= s[0] && s[0] <= 'Z') || ('a' <= s[0] && s[0] <= 'z'))) {
+    // A typical absolute path like "C:\Windows" or "D:"
+    s += 2;
+    if (s != end) {
+      ++s;
+    }
+  } else if (end - s >= 3 && IsPathSeparator(*s) && IsPathSeparator(*(s + 1))
+             && !IsPathSeparator(*(s + 2))) {
+    // Move past the "\\" prefix in a UNC path like "\\Server\Share\Folder"
+    s += 2;
+    // Skip 2 components and their following separators ("Server\" and "Share\")
+    for (int i = 0; i < 2; ++i) {
+      while (s != end) {
+        bool stop = IsPathSeparator(*s);
+        ++s;
+        if (stop) {
+          break;
+        }
+      }
+    }
+  } else if (s != end && IsPathSeparator(*s)) {
+    // A drive-rooted path like "\Windows"
+    ++s;
+  }
+#else
+  if (s != end && IsPathSeparator(*s)) {
+    ++s;
+  }
+#endif
+  return static_cast<size_t>(s - path.begin());
+}
+
 // Returns a copy of the FilePath with the directory part removed.
 // Example: FilePath("path/to/file").RemoveDirectoryName() returns
 // FilePath("file"). If there is no directory part ("just_a_file"), it returns
@ -246,26 +285,16 @@ bool FilePath::DirectoryExists() const {
 }

 // Returns true if pathname describes a root directory. (Windows has one
-// root directory per disk drive.)
+// root directory per disk drive. UNC share roots are also included.)
 bool FilePath::IsRootDirectory() const {
-#if GTEST_OS_WINDOWS
-  return pathname_.length() == 3 && IsAbsolutePath();
-#else
-  return pathname_.length() == 1 && IsPathSeparator(pathname_.c_str()[0]);
-#endif
+  size_t root_length = CalculateRootLength();
+  return root_length > 0 && root_length == pathname_.size() &&
+         IsPathSeparator(pathname_[root_length - 1]);
 }

 // Returns true if pathname describes an absolute path.
 bool FilePath::IsAbsolutePath() const {
-  const char* const name = pathname_.c_str();
-#if GTEST_OS_WINDOWS
-  return pathname_.length() >= 3 &&
-         ((name[0] >= 'a' && name[0] <= 'z') ||
-          (name[0] >= 'A' && name[0] <= 'Z')) &&
-         name[1] == ':' && IsPathSeparator(name[2]);
-#else
-  return IsPathSeparator(name[0]);
-#endif
+  return CalculateRootLength() > 0;
 }

 // Returns a pathname for a file that does not currently exist. The pathname
@ -323,7 +352,7 @@ bool FilePath::CreateFolder() const {
  delete[] unicode;
 #elif GTEST_OS_WINDOWS
  int result = _mkdir(pathname_.c_str());
-#elif GTEST_OS_ESP8266 || GTEST_OS_XTENSA
+#elif GTEST_OS_ESP8266 || GTEST_OS_XTENSA || GTEST_OS_QURT
  // do nothing
  int result = 0;
 #else
@ -347,17 +376,27 @@ FilePath FilePath::RemoveTrailingPathSeparator() const {
 // Removes any redundant separators that might be in the pathname.
 // For example, "bar///foo" becomes "bar/foo". Does not eliminate other
 // redundancies that might be in a pathname involving "." or "..".
+// Note that "\\Host\Share" does not contain a redundancy on Windows!
 void FilePath::Normalize() {
  auto out = pathname_.begin();

-  for (const char character : pathname_) {
+  auto i = pathname_.cbegin();
+#if GTEST_OS_WINDOWS
+  // UNC paths are treated specially
+  if (pathname_.end() - i >= 3 && IsPathSeparator(*i) &&
+      IsPathSeparator(*(i + 1)) && !IsPathSeparator(*(i + 2))) {
+    *(out++) = kPathSeparator;
+    *(out++) = kPathSeparator;
+  }
+#endif
+  while (i != pathname_.end()) {
+    const char character = *i;
    if (!IsPathSeparator(character)) {
      *(out++) = character;
    } else if (out == pathname_.begin() || *std::prev(out) != kPathSeparator) {
      *(out++) = kPathSeparator;
-    } else {
-      continue;
    }
+    ++i;
  }

  pathname_.erase(out, pathname_.end());
--- a/googletest/src/gtest-printers.cc
+++ b/googletest/src/gtest-printers.cc
@ -315,7 +315,7 @@ void PrintTo(__uint128_t v, ::std::ostream* os) {
    low = low / 10 + high_mod * 1844674407370955161 + carry / 10;

    char digit = static_cast<char>(carry % 10);
-    *--p = '0' + digit;
+    *--p = static_cast<char>('0' + digit);
  }
  *os << p;
 }
--- a/googletest/src/gtest.cc
+++ b/googletest/src/gtest.cc
@ -143,6 +143,14 @@
 #include "absl/strings/str_replace.h"
 #endif  // GTEST_HAS_ABSL

+// Checks builtin compiler feature |x| while avoiding an extra layer of #ifdefs
+// at the callsite.
+#if defined(__has_builtin)
+#define GTEST_HAS_BUILTIN(x) __has_builtin(x)
+#else
+#define GTEST_HAS_BUILTIN(x) 0
+#endif  // defined(__has_builtin)
+
 namespace testing {

 using internal::CountIf;
@ -2713,7 +2721,8 @@ TestInfo::TestInfo(const std::string& a_test_suite_name,
                   internal::TypeId fixture_class_id,
                   internal::TestFactoryBase* factory)
    : test_suite_name_(a_test_suite_name),
-      name_(a_name),
+      // begin()/end() is MSVC 17.3.3 ASAN crash workaround (GitHub issue #3997)
+      name_(a_name.begin(), a_name.end()),
      type_param_(a_type_param ? new std::string(a_type_param) : nullptr),
      value_param_(a_value_param ? new std::string(a_value_param) : nullptr),
      location_(a_code_location),
@ -3247,18 +3256,15 @@ bool ShouldUseColor(bool stdout_is_tty) {
 #else
    // On non-Windows platforms, we rely on the TERM variable.
    const char* const term = posix::GetEnv("TERM");
-    const bool term_supports_color =
+    const bool term_supports_color = term != nullptr && (
        String::CStringEquals(term, "xterm") ||
        String::CStringEquals(term, "xterm-color") ||
-        String::CStringEquals(term, "xterm-256color") ||
        String::CStringEquals(term, "screen") ||
-        String::CStringEquals(term, "screen-256color") ||
        String::CStringEquals(term, "tmux") ||
-        String::CStringEquals(term, "tmux-256color") ||
        String::CStringEquals(term, "rxvt-unicode") ||
-        String::CStringEquals(term, "rxvt-unicode-256color") ||
        String::CStringEquals(term, "linux") ||
-        String::CStringEquals(term, "cygwin");
+        String::CStringEquals(term, "cygwin") ||
+        String::EndsWithCaseInsensitive(term, "-256color"));
    return stdout_is_tty && term_supports_color;
 #endif  // GTEST_OS_WINDOWS
  }
@ -4837,6 +4843,9 @@ void JsonUnitTestResultPrinter::PrintJsonUnitTest(std::ostream* stream,
  // If there was a test failure outside of one of the test suites (like in a
  // test environment) include that in the output.
  if (unit_test.ad_hoc_test_result().Failed()) {
+    if (comma) {
+      *stream << ",\n";
+    }
    OutputJsonTestSuiteForTestResult(stream, unit_test.ad_hoc_test_result());
  }

@ -5347,6 +5356,10 @@ void UnitTest::AddTestPartResult(TestPartResult::Type result_type,
     (defined(__x86_64__) || defined(__i386__)))
      // with clang/gcc we can achieve the same effect on x86 by invoking int3
      asm("int3");
+#elif GTEST_HAS_BUILTIN(__builtin_trap)
+      __builtin_trap();
+#elif defined(SIGTRAP)
+      raise(SIGTRAP);
 #else
      // Dereference nullptr through a volatile pointer to prevent the compiler
      // from removing. We use this rather than abort() or __builtin_trap() for
@ -6053,7 +6066,7 @@ bool ShouldRunTestOnShard(int total_shards, int shard_index, int test_id) {
 // each TestSuite and TestInfo object.
 // If shard_tests == true, further filters tests based on sharding
 // variables in the environment - see
-// https://github.com/google/googletest/blob/master/googletest/docs/advanced.md
+// https://github.com/google/googletest/blob/main/docs/advanced.md
 // . Returns the number of tests that should run.
 int UnitTestImpl::FilterTests(ReactionToSharding shard_tests) {
  const int32_t total_shards = shard_tests == HONOR_SHARDING_PROTOCOL
--- a/googletest/src/gtest_main.cc
+++ b/googletest/src/gtest_main.cc
@ -32,9 +32,12 @@
 #include "gtest/gtest.h"

 #if GTEST_OS_ESP8266 || GTEST_OS_ESP32
+// Arduino-like platforms: program entry points are setup/loop instead of main.
+
 #if GTEST_OS_ESP8266
 extern "C" {
 #endif
+
 void setup() { testing::InitGoogleTest(); }

 void loop() { RUN_ALL_TESTS(); }
@ -43,7 +46,16 @@ void loop() { RUN_ALL_TESTS(); }
 }
 #endif

+#elif GTEST_OS_QURT
+// QuRT: program entry point is main, but argc/argv are unusable.
+
+GTEST_API_ int main() {
+  printf("Running main() from %s\n", __FILE__);
+  testing::InitGoogleTest();
+  return RUN_ALL_TESTS();
+}
 #else
+// Normal platforms: program entry point is main, argc/argv are initialized.

 GTEST_API_ int main(int argc, char **argv) {
  printf("Running main() from %s\n", __FILE__);
--- a/googletest/test/googletest-filepath-test.cc
+++ b/googletest/test/googletest-filepath-test.cc
@ -421,8 +421,13 @@ TEST(NormalizeTest, MultipleConsecutiveSeparatorsInMidstring) {
 // "/bar" == //bar" == "///bar"
 TEST(NormalizeTest, MultipleConsecutiveSeparatorsAtStringStart) {
  EXPECT_EQ(GTEST_PATH_SEP_ "bar", FilePath(GTEST_PATH_SEP_ "bar").string());
+#if GTEST_OS_WINDOWS
+  EXPECT_EQ(GTEST_PATH_SEP_ GTEST_PATH_SEP_ "bar",
+            FilePath(GTEST_PATH_SEP_ GTEST_PATH_SEP_ "bar").string());
+#else
  EXPECT_EQ(GTEST_PATH_SEP_ "bar",
            FilePath(GTEST_PATH_SEP_ GTEST_PATH_SEP_ "bar").string());
+#endif
  EXPECT_EQ(
      GTEST_PATH_SEP_ "bar",
      FilePath(GTEST_PATH_SEP_ GTEST_PATH_SEP_ GTEST_PATH_SEP_ "bar").string());
@ -621,6 +626,9 @@ TEST(FilePathTest, IsAbsolutePath) {
  EXPECT_TRUE(
      FilePath("c:/" GTEST_PATH_SEP_ "is_not" GTEST_PATH_SEP_ "relative")
          .IsAbsolutePath());
+  EXPECT_TRUE(FilePath("d:/Windows").IsAbsolutePath());
+  EXPECT_TRUE(FilePath("\\\\Host\\Share").IsAbsolutePath());
+  EXPECT_TRUE(FilePath("\\\\Host\\Share\\Folder").IsAbsolutePath());
 #else
  EXPECT_TRUE(FilePath(GTEST_PATH_SEP_ "is_not" GTEST_PATH_SEP_ "relative")
                  .IsAbsolutePath());
@ -637,6 +645,16 @@ TEST(FilePathTest, IsRootDirectory) {
  EXPECT_FALSE(FilePath("b:a").IsRootDirectory());
  EXPECT_FALSE(FilePath("8:/").IsRootDirectory());
  EXPECT_FALSE(FilePath("c|/").IsRootDirectory());
+  EXPECT_TRUE(FilePath("c:/").IsRootDirectory());
+  EXPECT_FALSE(FilePath("d:/Windows").IsRootDirectory());
+
+  // This is for backward compatibility, since callers (even in this library)
+  // have assumed IsRootDirectory() implies a trailing directory separator.
+  EXPECT_FALSE(FilePath("\\\\Host\\Share").IsRootDirectory());
+
+  EXPECT_TRUE(FilePath("\\\\Host\\Share\\").IsRootDirectory());
+  EXPECT_FALSE(FilePath("\\\\Host\\Share\\.").IsRootDirectory());
+  EXPECT_FALSE(FilePath("\\\\Host\\Share\\C$\\").IsRootDirectory());
 #else
  EXPECT_TRUE(FilePath("/").IsRootDirectory());
  EXPECT_TRUE(FilePath("//").IsRootDirectory());
--- a/googletest/test/googletest-param-test-test.cc
+++ b/googletest/test/googletest-param-test-test.cc
@ -40,6 +40,7 @@
 #include <set>
 #include <sstream>
 #include <string>
+#include <tuple>
 #include <vector>

 #include "gtest/gtest.h"
@ -51,6 +52,7 @@ using ::std::vector;
 using ::testing::AddGlobalTestEnvironment;
 using ::testing::Bool;
 using ::testing::Combine;
+using ::testing::ConvertGenerator;
 using ::testing::Message;
 using ::testing::Range;
 using ::testing::TestWithParam;
@ -402,7 +404,7 @@ TEST(BoolTest, BoolWorks) {
 TEST(CombineTest, CombineWithTwoParameters) {
  const char* foo = "foo";
  const char* bar = "bar";
-  const ParamGenerator<std::tuple<const char*, int> > gen =
+  const ParamGenerator<std::tuple<const char*, int>> gen =
      Combine(Values(foo, bar), Values(3, 4));

  std::tuple<const char*, int> expected_values[] = {
@ -413,7 +415,7 @@ TEST(CombineTest, CombineWithTwoParameters) {

 // Tests that Combine() with three parameters generates the expected sequence.
 TEST(CombineTest, CombineWithThreeParameters) {
-  const ParamGenerator<std::tuple<int, int, int> > gen =
+  const ParamGenerator<std::tuple<int, int, int>> gen =
      Combine(Values(0, 1), Values(3, 4), Values(5, 6));
  std::tuple<int, int, int> expected_values[] = {
      std::make_tuple(0, 3, 5), std::make_tuple(0, 3, 6),
@ -427,7 +429,7 @@ TEST(CombineTest, CombineWithThreeParameters) {
 // sequence generates a sequence with the number of elements equal to the
 // number of elements in the sequence generated by the second parameter.
 TEST(CombineTest, CombineWithFirstParameterSingleValue) {
-  const ParamGenerator<std::tuple<int, int> > gen =
+  const ParamGenerator<std::tuple<int, int>> gen =
      Combine(Values(42), Values(0, 1));

  std::tuple<int, int> expected_values[] = {std::make_tuple(42, 0),
@ -439,7 +441,7 @@ TEST(CombineTest, CombineWithFirstParameterSingleValue) {
 // sequence generates a sequence with the number of elements equal to the
 // number of elements in the sequence generated by the first parameter.
 TEST(CombineTest, CombineWithSecondParameterSingleValue) {
-  const ParamGenerator<std::tuple<int, int> > gen =
+  const ParamGenerator<std::tuple<int, int>> gen =
      Combine(Values(0, 1), Values(42));

  std::tuple<int, int> expected_values[] = {std::make_tuple(0, 42),
@ -450,7 +452,7 @@ TEST(CombineTest, CombineWithSecondParameterSingleValue) {
 // Tests that when the first parameter produces an empty sequence,
 // Combine() produces an empty sequence, too.
 TEST(CombineTest, CombineWithFirstParameterEmptyRange) {
-  const ParamGenerator<std::tuple<int, int> > gen =
+  const ParamGenerator<std::tuple<int, int>> gen =
      Combine(Range(0, 0), Values(0, 1));
  VerifyGeneratorIsEmpty(gen);
 }
@ -458,7 +460,7 @@ TEST(CombineTest, CombineWithFirstParameterEmptyRange) {
 // Tests that when the second parameter produces an empty sequence,
 // Combine() produces an empty sequence, too.
 TEST(CombineTest, CombineWithSecondParameterEmptyRange) {
-  const ParamGenerator<std::tuple<int, int> > gen =
+  const ParamGenerator<std::tuple<int, int>> gen =
      Combine(Values(0, 1), Range(1, 1));
  VerifyGeneratorIsEmpty(gen);
 }
@ -469,7 +471,7 @@ TEST(CombineTest, CombineWithMaxNumberOfParameters) {
  const char* foo = "foo";
  const char* bar = "bar";
  const ParamGenerator<
-      std::tuple<const char*, int, int, int, int, int, int, int, int, int> >
+      std::tuple<const char*, int, int, int, int, int, int, int, int, int>>
      gen =
          Combine(Values(foo, bar), Values(1), Values(2), Values(3), Values(4),
                  Values(5), Values(6), Values(7), Values(8), Values(9));
@ -497,11 +499,11 @@ class NonDefaultConstructAssignString {
 };

 TEST(CombineTest, NonDefaultConstructAssign) {
-  const ParamGenerator<std::tuple<int, NonDefaultConstructAssignString> > gen =
+  const ParamGenerator<std::tuple<int, NonDefaultConstructAssignString>> gen =
      Combine(Values(0, 1), Values(NonDefaultConstructAssignString("A"),
                                   NonDefaultConstructAssignString("B")));

-  ParamGenerator<std::tuple<int, NonDefaultConstructAssignString> >::iterator
+  ParamGenerator<std::tuple<int, NonDefaultConstructAssignString>>::iterator
      it = gen.begin();

  EXPECT_EQ(0, std::get<0>(*it));
@ -523,6 +525,64 @@ TEST(CombineTest, NonDefaultConstructAssign) {
  EXPECT_TRUE(it == gen.end());
 }

+template <typename T>
+class ConstructFromT {
+ public:
+  explicit ConstructFromT(const T& t) : t_(t) {}
+  template <typename... Args,
+            typename std::enable_if<sizeof...(Args) != 1, int>::type = 0>
+  ConstructFromT(Args&&... args) : t_(std::forward<Args>(args)...) {}
+
+  bool operator==(const ConstructFromT& other) const { return other.t_ == t_; }
+
+  const T& get() const { return t_; }
+
+ private:
+  T t_;
+};
+
+TEST(ConvertTest, CombineWithTwoParameters) {
+  const char* foo = "foo";
+  const char* bar = "bar";
+  const ParamGenerator<ConstructFromT<std::tuple<const char*, int>>> gen =
+      ConvertGenerator<std::tuple<const char*, int>>(
+          Combine(Values(foo, bar), Values(3, 4)));
+
+  ConstructFromT<std::tuple<const char*, int>> expected_values[] = {
+      {foo, 3}, {foo, 4}, {bar, 3}, {bar, 4}};
+  VerifyGenerator(gen, expected_values);
+}
+
+TEST(ConvertTest, NonDefaultConstructAssign) {
+  const ParamGenerator<
+      ConstructFromT<std::tuple<int, NonDefaultConstructAssignString>>>
+      gen = ConvertGenerator<std::tuple<int, NonDefaultConstructAssignString>>(
+          Combine(Values(0, 1), Values(NonDefaultConstructAssignString("A"),
+                                       NonDefaultConstructAssignString("B"))));
+
+  ParamGenerator<ConstructFromT<
+      std::tuple<int, NonDefaultConstructAssignString>>>::iterator it =
+      gen.begin();
+
+  EXPECT_EQ(0, std::get<0>(it->get()));
+  EXPECT_EQ("A", std::get<1>(it->get()).str());
+  ++it;
+
+  EXPECT_EQ(0, std::get<0>(it->get()));
+  EXPECT_EQ("B", std::get<1>(it->get()).str());
+  ++it;
+
+  EXPECT_EQ(1, std::get<0>(it->get()));
+  EXPECT_EQ("A", std::get<1>(it->get()).str());
+  ++it;
+
+  EXPECT_EQ(1, std::get<0>(it->get()));
+  EXPECT_EQ("B", std::get<1>(it->get()).str());
+  ++it;
+
+  EXPECT_TRUE(it == gen.end());
+}
+
 // Tests that an generator produces correct sequence after being
 // assigned from another generator.
 TEST(ParamGeneratorTest, AssignmentWorks) {
--- a/googletest/test/googletest-printers-test.cc
+++ b/googletest/test/googletest-printers-test.cc
@ -37,6 +37,7 @@
 #include <cstring>
 #include <deque>
 #include <forward_list>
+#include <functional>
 #include <limits>
 #include <list>
 #include <map>
@ -193,6 +194,11 @@ OutputStream& operator<<(OutputStream& os,
  return os;
 }

+struct StreamableInLocal {};
+void operator<<(::std::ostream& os, const StreamableInLocal& /* x */) {
+  os << "StreamableInLocal";
+}
+
 // A user-defined streamable but recursively-defined container type in
 // a user namespace, it mimics therefore std::filesystem::path or
 // boost::filesystem::path.
@ -1604,6 +1610,23 @@ TEST(PrintToStringTest, ContainsNonLatin) {
                          "\n    As Text: \"From ä — ẑ\"");
 }

+TEST(PrintToStringTest, PrintStreamableInLocal) {
+  EXPECT_STREQ("StreamableInLocal",
+               PrintToString(foo::StreamableInLocal()).c_str());
+}
+
+TEST(PrintToStringTest, PrintReferenceToStreamableInLocal) {
+  foo::StreamableInLocal s;
+  std::reference_wrapper<foo::StreamableInLocal> r(s);
+  EXPECT_STREQ("StreamableInLocal", PrintToString(r).c_str());
+}
+
+TEST(PrintToStringTest, PrintReferenceToStreamableInGlobal) {
+  StreamableInGlobal s;
+  std::reference_wrapper<StreamableInGlobal> r(s);
+  EXPECT_STREQ("StreamableInGlobal", PrintToString(r).c_str());
+}
+
 TEST(IsValidUTF8Test, IllFormedUTF8) {
  // The following test strings are ill-formed UTF-8 and are printed
  // as hex only (or ASCII, in case of ASCII bytes) because IsValidUTF8() is
--- a/googletest/test/gtest_unittest.cc
+++ b/googletest/test/gtest_unittest.cc
@ -3475,10 +3475,10 @@ TEST_F(NoFatalFailureTest, MessageIsStreamable) {
  TestPartResultArray gtest_failures;
  {
    ScopedFakeTestPartResultReporter gtest_reporter(&gtest_failures);
-    EXPECT_NO_FATAL_FAILURE(FAIL() << "foo") << "my message";
+    EXPECT_NO_FATAL_FAILURE([] { FAIL() << "foo"; }()) << "my message";
  }
  ASSERT_EQ(2, gtest_failures.size());
-  EXPECT_EQ(TestPartResult::kNonFatalFailure,
+  EXPECT_EQ(TestPartResult::kFatalFailure,
            gtest_failures.GetTestPartResult(0).type());
  EXPECT_EQ(TestPartResult::kNonFatalFailure,
            gtest_failures.GetTestPartResult(1).type());