linux-kernel - [PATCH v2] kunit: tool: update test counts summary line format

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Date:   Fri,  8 Apr 2022 14:51:05 -0700
From:   Daniel Latypov <dlatypov@...gle.com>
To:     brendanhiggins@...gle.com, davidgow@...gle.com
Cc:     linux-kernel@...r.kernel.org, kunit-dev@...glegroups.com,
        linux-kselftest@...r.kernel.org, skhan@...uxfoundation.org,
        Daniel Latypov <dlatypov@...gle.com>
Subject: [PATCH v2] kunit: tool: update test counts summary line format

Before:
> Testing complete. Passed: 137, Failed: 0, Crashed: 0, Skipped: 36, Errors: 0

After:
> Testing complete. Ran 173 tests: passed: 137, skipped: 36

Even with our current set of statuses, the output is a bit verbose.
It could get worse in the future if we add more (e.g. timeout, kasan).
Let's only print the relevant ones.

I had previously been sympathetic to the argument that always
printing out all the statuses would make it easier to parse results.
But now we have commit acd8e8407b8f ("kunit: Print test statistics on
failure"), there are test counts printed out in the raw output.
We don't currently print out an overall total across all suites, but it
would be easy to add, if we see a need for that.

Signed-off-by: Daniel Latypov <dlatypov@...gle.com>
Co-developed-by: David Gow <davidgow@...gle.com>
Signed-off-by: David Gow <davidgow@...gle.com>
---
Changes:
v1: https://lore.kernel.org/linux-kselftest/20220407223019.2066361-1-dlatypov@google.com/
Combined with the patch David posted in reply after some bikeshedding
about the format.

Now this patch will print the total # of tests as well.
---
 tools/testing/kunit/kunit_parser.py | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/tools/testing/kunit/kunit_parser.py b/tools/testing/kunit/kunit_parser.py
index 807ed2bd6832..de1c0b7e14ed 100644
--- a/tools/testing/kunit/kunit_parser.py
+++ b/tools/testing/kunit/kunit_parser.py
@@ -94,11 +94,11 @@ class TestCounts:
 	def __str__(self) -> str:
 		"""Returns the string representation of a TestCounts object.
 		"""
-		return ('Passed: ' + str(self.passed) +
-			', Failed: ' + str(self.failed) +
-			', Crashed: ' + str(self.crashed) +
-			', Skipped: ' + str(self.skipped) +
-			', Errors: ' + str(self.errors))
+		statuses = [('passed', self.passed), ('failed', self.failed),
+			('crashed', self.crashed), ('skipped', self.skipped),
+			('errors', self.errors)]
+		return f'Ran {self.total()} tests: ' + \
+			', '.join(f'{s}: {n}' for s, n in statuses if n > 0)
 
 	def total(self) -> int:
 		"""Returns the total number of test cases within a test

base-commit: b04d1a8dc7e7ff7ca91a20bef053bcc04265d83a
-- 
2.35.1.1178.g4f1659d476-goog