[lit][gtest] Support SKIPPED tests

This updates the googletest format to support tests that use GTEST_SKIP(),
which is now available with the updated googletest framework.

Differential Revision: https://reviews.llvm.org/D102694

llvm/utils/lit/lit/formats/googletest.py

@@ -135,6 +135,9 @@ class GoogleTest(TestFormat):
         if exitCode:
             return lit.Test.FAIL, out + err
 
+        if '[  SKIPPED ] 1 test,' in out:
+            return lit.Test.SKIPPED, ''
+
         passing_test_line = '[  PASSED  ] 1 test.'
         if passing_test_line not in out:
             msg = ('Unable to find %r in gtest output:\n\n%s%s' %

llvm/utils/lit/tests/Inputs/googletest-format/DummySubDir/OneTest.py

@@ -10,6 +10,7 @@ if sys.argv[1] == "--gtest_list_tests":
 FirstTest.
   subTestA
   subTestB
+  subTestC
 ParameterizedTest/0.
   subTest
 ParameterizedTest/1.
@@ -27,6 +28,12 @@ elif test_name == 'FirstTest.subTestB':
     print('I am subTest B, I FAIL')
     print('And I have two lines of output')
     sys.exit(1)
+elif test_name == 'FirstTest.subTestC':
+    print('I am subTest C, I am SKIPPED')
+    print('[  PASSED  ] 0 tests.')
+    print('[  SKIPPED ] 1 test, listed below:')
+    print('[  SKIPPED ] FirstTest.subTestC')
+    sys.exit(0)
 elif test_name in ('ParameterizedTest/0.subTest',
                    'ParameterizedTest/1.subTest'):
     print('I am a parameterized test, I also PASS')

llvm/utils/lit/tests/googletest-format.py

@@ -18,9 +18,10 @@
 # CHECK-NEXT: I am subTest B, I FAIL
 # CHECK-NEXT: And I have two lines of output
 # CHECK: ***
+# CHECK: SKIPPED: googletest-format :: {{[Dd]ummy[Ss]ub[Dd]ir}}/OneTest.py/FirstTest.subTestC
 # CHECK: PASS: googletest-format :: {{[Dd]ummy[Ss]ub[Dd]ir}}/OneTest.py/ParameterizedTest/0.subTest
 # CHECK: PASS: googletest-format :: {{[Dd]ummy[Ss]ub[Dd]ir}}/OneTest.py/ParameterizedTest/1.subTest
 # CHECK: Failed Tests (1)
-# CHECK: Passed: 3
-# CHECK: Failed: 1
-
+# CHECK: Skipped: 1
+# CHECK: Passed : 3
+# CHECK: Failed : 1