kunit: tool: parse KTAP compliant test output

Change the KUnit parser to be able to parse test output that complies with
the KTAP version 1 specification format found here:
https://kernel.org/doc/html/latest/dev-tools/ktap.html. Ensure the parser
is able to parse tests with the original KUnit test output format as
well.

KUnit parser now accepts any of the following test output formats:

Original KUnit test output format:

 TAP version 14
 1..1
   # Subtest: kunit-test-suite
   1..3
   ok 1 - kunit_test_1
   ok 2 - kunit_test_2
   ok 3 - kunit_test_3
 # kunit-test-suite: pass:3 fail:0 skip:0 total:3
 # Totals: pass:3 fail:0 skip:0 total:3
 ok 1 - kunit-test-suite

KTAP version 1 test output format:

 KTAP version 1
 1..1
   KTAP version 1
   1..3
   ok 1 kunit_test_1
   ok 2 kunit_test_2
   ok 3 kunit_test_3
 ok 1 kunit-test-suite

New KUnit test output format (changes made in the next patch of
this series):

 KTAP version 1
 1..1
   KTAP version 1
   # Subtest: kunit-test-suite
   1..3
   ok 1 kunit_test_1
   ok 2 kunit_test_2
   ok 3 kunit_test_3
 # kunit-test-suite: pass:3 fail:0 skip:0 total:3
 # Totals: pass:3 fail:0 skip:0 total:3
 ok 1 kunit-test-suite

Signed-off-by: Rae Moar <rmoar@google.com>
Reviewed-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

1 files changed, 14 insertions, 0 deletions

diff --git a/tools/testing/kunit/kunit_tool_test.py b/tools/testing/kunit/kunit_tool_test.py
index 84a08cf07242..d7f669cbf2a8 100755
--- a/tools/testing/kunit/kunit_tool_test.py
+++ b/tools/testing/kunit/kunit_tool_test.py
@@ -312,6 +312,20 @@ class KUnitParserTest(unittest.TestCase):
 		self.assertEqual(kunit_parser._summarize_failed_tests(result),
 			'Failures: all_failed_suite, some_failed_suite.test2')
 
+	def test_ktap_format(self):
+		ktap_log = test_data_path('test_parse_ktap_output.log')
+		with open(ktap_log) as file:
+			result = kunit_parser.parse_run_tests(file.readlines())
+		self.assertEqual(result.counts, kunit_parser.TestCounts(passed=3))
+		self.assertEqual('suite', result.subtests[0].name)
+		self.assertEqual('case_1', result.subtests[0].subtests[0].name)
+		self.assertEqual('case_2', result.subtests[0].subtests[1].name)
+
+	def test_parse_subtest_header(self):
+		ktap_log = test_data_path('test_parse_subtest_header.log')
+		with open(ktap_log) as file:
+			result = kunit_parser.parse_run_tests(file.readlines())
+		self.print_mock.assert_any_call(StrContains('suite (1 subtest)'))
 
 def line_stream_from_strs(strs: Iterable[str]) -> kunit_parser.LineStream:
 	return kunit_parser.LineStream(enumerate(strs, start=1))