9b03e71707
H302 violation is reported by flake8 when importing separated objects from
modules instead of importing the whole module.
e.g. from package.module import function
function()
is changed to
from package import module
module.function()
Change-Id: Ic6975f39c755ded54149a9c01fcdcfaf78c596fc
Partial-Bug: #1291032
72 lines
2.5 KiB
Python
72 lines
2.5 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2013 Red Hat, Inc.
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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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import eventlet
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import fixtures
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from six import moves
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from neutron.agent.linux import async_process
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from neutron.tests import base
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class TestAsyncProcess(base.BaseTestCase):
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def setUp(self):
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super(TestAsyncProcess, self).setUp()
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self.test_file_path = self.useFixture(
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fixtures.TempDir()).join("test_async_process.tmp")
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self.data = [str(x) for x in moves.xrange(4)]
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with file(self.test_file_path, 'w') as f:
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f.writelines('%s\n' % item for item in self.data)
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def _check_stdout(self, proc):
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# Ensure that all the output from the file is read
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output = []
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while output != self.data:
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new_output = list(proc.iter_stdout())
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if new_output:
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output += new_output
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eventlet.sleep(0.01)
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def test_stopping_async_process_lifecycle(self):
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with self.assert_max_execution_time():
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proc = async_process.AsyncProcess(['tail', '-f',
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self.test_file_path])
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proc.start()
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self._check_stdout(proc)
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proc.stop()
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# Ensure that the process and greenthreads have stopped
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proc._process.wait()
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self.assertEqual(proc._process.returncode, -9)
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for watcher in proc._watchers:
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watcher.wait()
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def test_async_process_respawns(self):
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with self.assert_max_execution_time():
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proc = async_process.AsyncProcess(['tail', '-f',
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self.test_file_path],
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respawn_interval=0)
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proc.start()
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# Ensure that the same output is read twice
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self._check_stdout(proc)
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pid = proc._get_pid_to_kill()
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proc._kill_process(pid)
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self._check_stdout(proc)
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proc.stop()
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