u-boot/tools/concurrencytest
Alper Nebi Yasak ebcaafcded patman: test_util: Print test stdout/stderr within test summaries
While running tests for a python tool, the tests' outputs get printed in
whatever order they happen to run, without any indication as to which
output belongs to which test. Unittest supports capturing these outputs
and printing them as part of the test summaries, but when a failure or
error occurs it switches back to printing as the tests run. Testtools
and subunit tests can do the same as their parts inherit from unittest,
but they don't outright expose this functionality.

On the unittest side, enable output buffering for the custom test result
class. Try to avoid ugly outputs by not printing stdout/stderr before
the test summary for low verbosity levels and for successful tests.

On the subunit side, implement a custom TestProtocolClient that enables
the same underlying functionality and injects the captured streams as
additional test details. This causes them to be merged into their test's
error traceback message, which is later rebuilt into an exception and
passed to our unittest report class.

Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-06-28 03:09:51 +01:00
..
.gitignore binman: Run tests concurrently 2018-10-08 07:34:34 -06:00
__init__.py patman: Correct pylint errors 2022-03-02 10:28:12 -05:00
concurrencytest.py patman: test_util: Print test stdout/stderr within test summaries 2022-06-28 03:09:51 +01:00
README.md tools: correct Markdown in concurrencytest/README.md 2020-01-30 13:30:35 -05:00

concurrencytest

testing goats

Python testtools extension for running unittest suites concurrently.


Install from PyPI:

pip install concurrencytest

Requires:


Example:

import time
import unittest

from concurrencytest import ConcurrentTestSuite, fork_for_tests


class SampleTestCase(unittest.TestCase):
    """Dummy tests that sleep for demo."""

    def test_me_1(self):
        time.sleep(0.5)

    def test_me_2(self):
        time.sleep(0.5)

    def test_me_3(self):
        time.sleep(0.5)

    def test_me_4(self):
        time.sleep(0.5)


# Load tests from SampleTestCase defined above
suite = unittest.TestLoader().loadTestsFromTestCase(SampleTestCase)
runner = unittest.TextTestRunner()

# Run tests sequentially
runner.run(suite)

# Run same tests across 4 processes
suite = unittest.TestLoader().loadTestsFromTestCase(SampleTestCase)
concurrent_suite = ConcurrentTestSuite(suite, fork_for_tests(4))
runner.run(concurrent_suite)

Output:

....
----------------------------------------------------------------------
Ran 4 tests in 2.003s

OK
....
----------------------------------------------------------------------
Ran 4 tests in 0.504s

OK