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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.
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import random
from absl import flags
from absl.testing import absltest
FLAGS = flags.FLAGS
flags.DEFINE_boolean('set_up_module_error', False,
'Cause setupModule to error.')
flags.DEFINE_boolean('tear_down_module_error', False,
'Cause tearDownModule to error.')
flags.DEFINE_boolean('set_up_class_error', False, 'Cause setUpClass to error.')
flags.DEFINE_boolean('tear_down_class_error', False,
'Cause tearDownClass to error.')
flags.DEFINE_boolean('set_up_error', False, 'Cause setUp to error.')
flags.DEFINE_boolean('tear_down_error', False, 'Cause tearDown to error.')
flags.DEFINE_boolean('test_error', False, 'Cause the test to error.')
flags.DEFINE_boolean('set_up_fail', False, 'Cause setUp to fail.')
flags.DEFINE_boolean('tear_down_fail', False, 'Cause tearDown to fail.')
flags.DEFINE_boolean('test_fail', False, 'Cause the test to fail.')
flags.DEFINE_float('random_error', 0.0,
'0 - 1.0: fraction of a random failure at any step',
lower_bound=0.0, upper_bound=1.0)
def _random_error():
return random.random() < FLAGS.random_error
def setUpModule():
if FLAGS.set_up_module_error or _random_error():
raise Exception('setUpModule Errored!')
def tearDownModule():
if FLAGS.tear_down_module_error or _random_error():
raise Exception('tearDownModule Errored!')
class FailableTest(absltest.TestCase):
@classmethod
def setUpClass(cls):
if FLAGS.set_up_class_error or _random_error():
raise Exception('setUpClass Errored!')
@classmethod
def tearDownClass(cls):
if FLAGS.tear_down_class_error or _random_error():
raise Exception('tearDownClass Errored!')
def setUp(self):
if FLAGS.set_up_error or _random_error():
raise Exception('setUp Errored!')
if FLAGS.set_up_fail:
self.fail('setUp Failed!')
def tearDown(self):
if FLAGS.tear_down_error or _random_error():
raise Exception('tearDown Errored!')
if FLAGS.tear_down_fail:
self.fail('tearDown Failed!')
def test(self):
if FLAGS.test_error or _random_error():
raise Exception('test Errored!')
if FLAGS.test_fail:
self.fail('test Failed!')
if __name__ == '__main__':
absltest.main()
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