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# Copyright 2017 The Abseil Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Helper binary for absltest_test.py."""
import os
import tempfile
import unittest
from absl import app
from absl import flags
from absl.testing import absltest
FLAGS = flags.FLAGS
_TEST_ID = flags.DEFINE_integer('test_id', 0, 'Which test to run.')
_NAME = flags.DEFINE_multi_string('name', [], 'List of names to print.')
@flags.validator('name')
def validate_name(value):
# This validator makes sure that the second FLAGS(sys.argv) inside
# absltest.main() won't actually trigger side effects of the flag parsing.
if len(value) > 2:
raise flags.ValidationError(
f'No more than two names should be specified, found {len(value)} names')
return True
class HelperTest(absltest.TestCase):
def test_flags(self):
if _TEST_ID.value == 1:
self.assertEqual(FLAGS.test_random_seed, 301)
if os.name == 'nt':
# On Windows, it's always in the temp dir, which doesn't start with '/'.
expected_prefix = tempfile.gettempdir()
else:
expected_prefix = '/'
self.assertTrue(
absltest.TEST_TMPDIR.value.startswith(expected_prefix),
'--test_tmpdir={} does not start with {}'.format(
absltest.TEST_TMPDIR.value, expected_prefix))
self.assertTrue(os.access(absltest.TEST_TMPDIR.value, os.W_OK))
elif _TEST_ID.value == 2:
self.assertEqual(FLAGS.test_random_seed, 321)
self.assertEqual(
absltest.TEST_SRCDIR.value,
os.environ['ABSLTEST_TEST_HELPER_EXPECTED_TEST_SRCDIR'])
self.assertEqual(
absltest.TEST_TMPDIR.value,
os.environ['ABSLTEST_TEST_HELPER_EXPECTED_TEST_TMPDIR'])
elif _TEST_ID.value == 3:
self.assertEqual(FLAGS.test_random_seed, 123)
self.assertEqual(
absltest.TEST_SRCDIR.value,
os.environ['ABSLTEST_TEST_HELPER_EXPECTED_TEST_SRCDIR'])
self.assertEqual(
absltest.TEST_TMPDIR.value,
os.environ['ABSLTEST_TEST_HELPER_EXPECTED_TEST_TMPDIR'])
elif _TEST_ID.value == 4:
self.assertEqual(FLAGS.test_random_seed, 221)
self.assertEqual(
absltest.TEST_SRCDIR.value,
os.environ['ABSLTEST_TEST_HELPER_EXPECTED_TEST_SRCDIR'])
self.assertEqual(
absltest.TEST_TMPDIR.value,
os.environ['ABSLTEST_TEST_HELPER_EXPECTED_TEST_TMPDIR'])
else:
raise unittest.SkipTest(
'Not asked to run: --test_id={}'.format(_TEST_ID.value))
@unittest.expectedFailure
def test_expected_failure(self):
if _TEST_ID.value == 5:
self.assertEqual(1, 1) # Expected failure, got success.
else:
self.assertEqual(1, 2) # The expected failure.
def test_xml_env_vars(self):
if _TEST_ID.value == 6:
self.assertEqual(
FLAGS.xml_output_file,
os.environ['ABSLTEST_TEST_HELPER_EXPECTED_XML_OUTPUT_FILE'])
else:
raise unittest.SkipTest(
'Not asked to run: --test_id={}'.format(_TEST_ID.value))
def test_name_flag(self):
if _TEST_ID.value == 7:
print('Names in test_name_flag() are:', ' '.join(_NAME.value))
else:
raise unittest.SkipTest(
'Not asked to run: --test_id={}'.format(_TEST_ID.value))
class TempFileHelperTest(absltest.TestCase):
"""Helper test case for tempfile cleanup tests."""
tempfile_cleanup = absltest.TempFileCleanup[os.environ.get(
'ABSLTEST_TEST_HELPER_TEMPFILE_CLEANUP', 'SUCCESS')]
def test_failure(self):
self.create_tempfile('failure')
self.fail('expected failure')
def test_success(self):
self.create_tempfile('success')
def test_subtest_failure(self):
self.create_tempfile('parent')
with self.subTest('success'):
self.create_tempfile('successful_child')
with self.subTest('failure'):
self.create_tempfile('failed_child')
self.fail('expected failure')
def test_subtest_success(self):
self.create_tempfile('parent')
for i in range(2):
with self.subTest(f'success{i}'):
self.create_tempfile(f'child{i}')
def main(argv):
del argv # Unused.
print('Names in main() are:', ' '.join(_NAME.value))
absltest.main()
if __name__ == '__main__':
if os.environ.get('ABSLTEST_TEST_HELPER_USE_APP_RUN'):
app.run(main)
else:
absltest.main()
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