Support --gtest_stream_result_to on macOS

This seems to just have been an oversight. POSIX socket APIs work just
fine on macOS.

Fixes https://github.com/google/googletest/issues/4214.

PiperOrigin-RevId: 523398386
Change-Id: I9d56cd9c6933318c1f0b0024f7fef44122fd0c83

googletest/include/gtest/internal/gtest-port.h

@@ -693,7 +693,7 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 #if defined(GTEST_OS_LINUX) || defined(GTEST_OS_GNU_KFREEBSD) || \
     defined(GTEST_OS_DRAGONFLY) || defined(GTEST_OS_FREEBSD) ||  \
     defined(GTEST_OS_NETBSD) || defined(GTEST_OS_OPENBSD) ||     \
-    defined(GTEST_OS_GNU_HURD)
+    defined(GTEST_OS_GNU_HURD) || defined(GTEST_OS_MAC)
 #define GTEST_CAN_STREAM_RESULTS_ 1
 #else
 #define GTEST_CAN_STREAM_RESULTS_ 0

googletest/test/gtest_help_test.py

@@ -43,6 +43,7 @@ import sys
 from googletest.test import gtest_test_utils
 
 
+IS_DARWIN = os.name == 'posix' and os.uname()[0] == 'Darwin'
 IS_LINUX = os.name == 'posix' and os.uname()[0] == 'Linux'
 IS_GNUHURD = os.name == 'posix' and os.uname()[0] == 'GNU'
 IS_GNUKFREEBSD = os.name == 'posix' and os.uname()[0] == 'GNU/kFreeBSD'
@@ -136,7 +137,7 @@ class GTestHelpTest(gtest_test_utils.TestCase):
 
     self.assertTrue(HELP_REGEX.search(output), output)
 
-    if IS_LINUX or IS_GNUHURD or IS_GNUKFREEBSD or IS_OPENBSD:
+    if IS_DARWIN or IS_LINUX or IS_GNUHURD or IS_GNUKFREEBSD or IS_OPENBSD:
       self.assertIn(STREAM_RESULT_TO_FLAG, output)
     else:
       self.assertNotIn(STREAM_RESULT_TO_FLAG, output)