linux-kernel - [PATCH] kunit: kunit_tool: Correctly parse diagnostic messages

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Date:   Mon,  9 Nov 2020 23:29:36 -0800
From:   David Gow <davidgow@...gle.com>
To:     brendanhiggins@...gle.com, Shuah Khan <skhan@...uxfoundation.org>,
        Arpitha Raghunandan <98.arpi@...il.com>,
        Marco Elver <elver@...gle.com>
Cc:     KUnit Development <kunit-dev@...glegroups.com>,
        linux-kselftest@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        David Gow <davidgow@...gle.com>
Subject: [PATCH] kunit: kunit_tool: Correctly parse diagnostic messages

Currently, kunit_tool expects all diagnostic lines in test results to
contain ": " somewhere, as both the subtest header and the crash report
do. Fix this to accept any line starting with (minus indent) "# " as
being a valid diagnostic line.

This matches what the TAP spec[1] and the draft KTAP spec[2] are
expecting.

[1]: http://testanything.org/tap-specification.html
[2]: https://lore.kernel.org/linux-kselftest/CY4PR13MB1175B804E31E502221BC8163FD830@CY4PR13MB1175.namprd13.prod.outlook.com/T/

Signed-off-by: David Gow <davidgow@...gle.com>
---
 tools/testing/kunit/kunit_parser.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/tools/testing/kunit/kunit_parser.py b/tools/testing/kunit/kunit_parser.py
index 84a1af2581f5..dab4cfa05b74 100644
--- a/tools/testing/kunit/kunit_parser.py
+++ b/tools/testing/kunit/kunit_parser.py
@@ -134,8 +134,8 @@ def parse_ok_not_ok_test_case(lines: List[str], test_case: TestCase) -> bool:
 	else:
 		return False
 
-SUBTEST_DIAGNOSTIC = re.compile(r'^[\s]+# .*?: (.*)$')
-DIAGNOSTIC_CRASH_MESSAGE = 'kunit test case crashed!'
+SUBTEST_DIAGNOSTIC = re.compile(r'^[\s]+# (.*)$')
+DIAGNOSTIC_CRASH_MESSAGE = re.compile(r'^[\s]+# .*?: kunit test case crashed!$')
 
 def parse_diagnostic(lines: List[str], test_case: TestCase) -> bool:
 	save_non_diagnositic(lines, test_case)
@@ -145,7 +145,8 @@ def parse_diagnostic(lines: List[str], test_case: TestCase) -> bool:
 	match = SUBTEST_DIAGNOSTIC.match(line)
 	if match:
 		test_case.log.append(lines.pop(0))
-		if match.group(1) == DIAGNOSTIC_CRASH_MESSAGE:
+		crash_match = DIAGNOSTIC_CRASH_MESSAGE.match(line)
+		if crash_match:
 			test_case.status = TestStatus.TEST_CRASHED
 		return True
 	else:
-- 
2.29.2.222.g5d2a92d10f8-goog