Re: [PATCH 1/2] kunit: tool: make unit test not print parsed testdata to stdout

[David Gow <davidgow@google.com>]

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On Sat, Oct 29, 2022 at 5:03 AM Daniel Latypov <dlatypov@google.com> wrote:
>
> Currently, if you run
> $ ./tools/testing/kunit/kunit_tool_test.py
> you'll see a lot of output from the parser as we feed it testdata.
>
> This makes the output hard to read and fairly confusing, esp. since our
> testdata includes example failures, which get printed out in red.
>
> Silence that output so real failures are easier to see.
>
> Signed-off-by: Daniel Latypov <dlatypov@google.com>
> ---

Thanks -- this has been annoying me for ages.

That being said, this isn't a perfect fix, the "usage" text and
"Reconfiguring .config"  still show up for me:
---
davidgow@slicestar:~/Development/linux-kselftest$
./tools/testing/kunit/kunit_tool_test.py
..............................usage: kunit_tool_test.py run [-h]
[--build_dir DIR] [--make_options X=Y] [--alltests] [--kunitconfig
PATHS] [--kconfig_add CONFIG_X=Y] [--arch ARCH] [--cross_compile
PREFIX] [--qemu_config FILE] [--qemu_ar
gs] [--jobs N]
                             [--timeout SECONDS] [--kernel_args]
[--run_isolated {suite,test}] [--raw_output [{all,kunit}]] [--json
[FILE]]
                             [filter_glob]
kunit_tool_test.py run: error: argument --raw_output: invalid choice:
'invalid' (choose from 'all', 'kunit')
..............................Generating .config ...
.Regenerating .config ...
.........
----------------------------------------------------------------------
Ran 70 tests in 0.232s

OK
---

That's still a significant improvement on what we had before, though, so:

Reviewed-by: David Gow <davidgow@google.com>

Cheers,
-- David

>  tools/testing/kunit/kunit_tool_test.py | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/tools/testing/kunit/kunit_tool_test.py b/tools/testing/kunit/kunit_tool_test.py
> index e2cd2cc2e98f..a6e53945656e 100755
> --- a/tools/testing/kunit/kunit_tool_test.py
> +++ b/tools/testing/kunit/kunit_tool_test.py
> @@ -80,6 +80,9 @@ class KconfigTest(unittest.TestCase):
>                 self.assertEqual(actual_kconfig, expected_kconfig)
>
>  class KUnitParserTest(unittest.TestCase):
> +       def setUp(self):
> +               self.print_mock = mock.patch('kunit_printer.Printer.print').start()
> +               self.addCleanup(mock.patch.stopall)
>
>         def assertContains(self, needle: str, haystack: kunit_parser.LineStream):
>                 # Clone the iterator so we can print the contents on failure.
> @@ -485,6 +488,9 @@ class LinuxSourceTreeTest(unittest.TestCase):
>
>
>  class KUnitJsonTest(unittest.TestCase):
> +       def setUp(self):
> +               self.print_mock = mock.patch('kunit_printer.Printer.print').start()
> +               self.addCleanup(mock.patch.stopall)
>
>         def _json_for(self, log_file):
>                 with open(test_data_path(log_file)) as file:
>
> base-commit: 8f8b51f7d5c8bd3a89e7ea87aed2cdaa52ca5ba4
> --
> 2.38.1.273.g43a17bfeac-goog
>

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