72 lines
2.3 KiB
Python
72 lines
2.3 KiB
Python
# Copyright (c) 2020 Red Hat, Inc.
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#
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from __future__ import absolute_import
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import itertools
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import signal
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import time
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import traceback
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import testtools
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import tobiko
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class ITimerTest(testtools.TestCase):
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do_wait = True
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def test_itimer(self, signal_number=None, delay=0.01,
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exception=tobiko.ITimerExpired, on_timeout=None):
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with tobiko.itimer(delay=delay, signal_number=signal_number,
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on_timeout=on_timeout):
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if exception is None:
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self._wait_for_timeout()
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else:
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ex = self.assertRaises(exception, self._wait_for_timeout)
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self.assertEqual(signal_number or signal.SIGALRM,
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ex.signal_number)
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self.assertIn('_wait_for_timeout', ex.stack)
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def test_itimer_with_sigalrm(self):
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self.test_itimer(signal_number=signal.SIGALRM)
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def test_itimer_with_sigvtalrm(self):
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self.test_itimer(signal_number=signal.SIGVTALRM)
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def test_itimer_with_sigprof(self):
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self.test_itimer(signal_number=signal.SIGPROF)
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def test_itimer_with_on_timeout(self):
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counter = itertools.count()
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def on_timeout(signal_number, frame):
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self.do_wait = False
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next(counter)
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self.assertEqual(signal.SIGALRM, signal_number)
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stack = traceback.extract_stack(frame, 1)
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self.assertEqual('_wait_for_timeout', stack[0].name)
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self.test_itimer(signal_number=signal.SIGALRM,
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on_timeout=on_timeout,
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exception=None)
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self.assertEqual(1, next(counter))
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def _wait_for_timeout(self):
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while self.do_wait:
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time.sleep(0.)
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