Update GoogleTest version used by Abseil

As part of this update, GoogleTest is now using the Abseil flags
implementation, and the flags usage_test needs to be modified to pass.

If building with bazel and --define=absl=1 to force GoogleTest to use
Abseil, a WORKSPACE dependency on the abseil branch of the RE2 project
is now required.

PiperOrigin-RevId: 455257879
Change-Id: Id1548ce7d6a95b747b72a4f255d31ced98e36006

4 files changed, 29 insertions, 12 deletions

diff --git a/WORKSPACE b/WORKSPACE
index 1a1753a8..3c4d397b 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -20,11 +20,20 @@ load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
 # GoogleTest/GoogleMock framework. Used by most unit-tests.
 http_archive(
-    name = "com_google_googletest",  # 2022-01-28T15:27:11Z
-    sha256 = "eb70a6d4520f940956a6b3e37d205d92736bb104c6a1b2b9f82bfc41bd7a2b34",
-    strip_prefix = "googletest-28e1da21d8d677bc98f12ccc7fc159ff19e8e817",
-    # Keep this URL in sync with ABSL_GOOGLETEST_COMMIT in ci/cmake_common.sh.
-    urls = ["https://github.com/google/googletest/archive/28e1da21d8d677bc98f12ccc7fc159ff19e8e817.zip"],
+    name = "com_google_googletest",  # 2022-06-01T21:08:04Z
+    sha256 = "df6cad4bf17df72d8d86306628701c01a45b9e001c7f2a3b28971c7e24b1035b",
+    strip_prefix = "googletest-0320f517fd920866d918e564105d68fd4362040a",
+    urls = ["https://github.com/google/googletest/archive/0320f517fd920866d918e564105d68fd4362040a.zip"],
+)
+
+# RE2 (the regular expression library used by GoogleTest)
+# Note this must use a commit from the `abseil` branch of the RE2 project.
+# https://github.com/google/re2/tree/abseil
+http_archive(
+    name = "com_googlesource_code_re2",  # 2022-04-08
+    sha256 = "906d0df8ff48f8d3a00a808827f009a840190f404559f649cb8e4d7143255ef9",
+    strip_prefix = "re2-a276a8c738735a0fe45a6ee590fe2df69bcf4502",
+    urls = ["https://github.com/google/re2/archive/a276a8c738735a0fe45a6ee590fe2df69bcf4502.zip"],
 )
 
 # Google benchmark.
diff --git a/absl/flags/CMakeLists.txt b/absl/flags/CMakeLists.txt
index 79e51a11..3e9d5adf 100644
--- a/absl/flags/CMakeLists.txt
+++ b/absl/flags/CMakeLists.txt
@@ -466,5 +466,5 @@ absl_cc_test(
     absl::flags_reflection
     absl::flags_usage
     absl::strings
-    GTest::gtest
+    GTest::gmock
 )
diff --git a/absl/flags/internal/usage_test.cc b/absl/flags/internal/usage_test.cc
index 6a65a1a3..209a7be9 100644
--- a/absl/flags/internal/usage_test.cc
+++ b/absl/flags/internal/usage_test.cc
@@ -20,6 +20,7 @@
 #include <sstream>
 #include <string>
 
+#include "gmock/gmock.h"
 #include "gtest/gtest.h"
 #include "absl/flags/flag.h"
 #include "absl/flags/internal/parse.h"
@@ -105,14 +106,19 @@ class UsageReportingTest : public testing::Test {
 using UsageReportingDeathTest = UsageReportingTest;
 
 TEST_F(UsageReportingDeathTest, TestSetProgramUsageMessage) {
+#if !defined(GTEST_HAS_ABSL) || !GTEST_HAS_ABSL
+  // Check for kTestUsageMessage set in main() below.
   EXPECT_EQ(absl::ProgramUsageMessage(), kTestUsageMessage);
+#else
+  // Check for part of the usage message set by GoogleTest.
+  EXPECT_THAT(absl::ProgramUsageMessage(),
+              ::testing::HasSubstr(
+                  "This program contains tests written using Google Test"));
+#endif
 
-#ifndef _WIN32
-  // TODO(rogeeff): figure out why this does not work on Windows.
   EXPECT_DEATH_IF_SUPPORTED(
       absl::SetProgramUsageMessage("custom usage message"),
-      ".*SetProgramUsageMessage\\(\\) called twice.*");
-#endif
+      ::testing::HasSubstr("SetProgramUsageMessage() called twice"));
 }
 
 // --------------------------------------------------------------------
@@ -489,8 +495,10 @@ path.
 int main(int argc, char* argv[]) {
   (void)absl::GetFlag(FLAGS_undefok);  // Force linking of parse.cc
   flags::SetProgramInvocationName("usage_test");
+#if !defined(GTEST_HAS_ABSL) || !GTEST_HAS_ABSL
+  // GoogleTest calls absl::SetProgramUsageMessage() already.
   absl::SetProgramUsageMessage(kTestUsageMessage);
+#endif
   ::testing::InitGoogleTest(&argc, argv);
-
   return RUN_ALL_TESTS();
 }
diff --git a/ci/cmake_common.sh b/ci/cmake_common.sh
index 8a93389b..de0e9092 100644
--- a/ci/cmake_common.sh
+++ b/ci/cmake_common.sh
@@ -14,7 +14,7 @@
 
 # The commit of GoogleTest to be used in the CMake tests in this directory.
 # Keep this in sync with the commit in the WORKSPACE file.
-readonly ABSL_GOOGLETEST_COMMIT="28e1da21d8d677bc98f12ccc7fc159ff19e8e817"
+readonly ABSL_GOOGLETEST_COMMIT="0320f517fd920866d918e564105d68fd4362040a"
 
 # Avoid depending on GitHub by looking for a cached copy of the commit first.
 if [[ -r "${KOKORO_GFILE_DIR:-}/distdir/${ABSL_GOOGLETEST_COMMIT}.zip" ]]; then