123 lines
4.4 KiB
Python
123 lines
4.4 KiB
Python
# Copyright 2011 Justin Santa Barbara
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# Copyright 2012 Hewlett-Packard Development Company, L.P.
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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 os
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import tempfile
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import testtools
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from fuel_agent.openstack.common import processutils
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from fuel_agent.utils import utils
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class ExecuteTestCase(testtools.TestCase):
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"""This class is partly based on the same class in openstack/ironic."""
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def test_parse_unit(self):
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self.assertEqual(utils.parse_unit('1.00m', 'm', ceil=True), 1)
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self.assertEqual(utils.parse_unit('1.00m', 'm', ceil=False), 1)
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self.assertEqual(utils.parse_unit('1.49m', 'm', ceil=True), 2)
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self.assertEqual(utils.parse_unit('1.49m', 'm', ceil=False), 1)
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self.assertEqual(utils.parse_unit('1.51m', 'm', ceil=True), 2)
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self.assertEqual(utils.parse_unit('1.51m', 'm', ceil=False), 1)
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self.assertRaises(ValueError, utils.parse_unit, '1.00m', 'MiB')
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self.assertRaises(ValueError, utils.parse_unit, '', 'MiB')
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def test_B2MiB(self):
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self.assertEqual(utils.B2MiB(1048575, ceil=False), 0)
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self.assertEqual(utils.B2MiB(1048576, ceil=False), 1)
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self.assertEqual(utils.B2MiB(1048575, ceil=True), 1)
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self.assertEqual(utils.B2MiB(1048576, ceil=True), 1)
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self.assertEqual(utils.B2MiB(1048577, ceil=True), 2)
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def test_retry_on_failure(self):
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fd, tmpfilename = tempfile.mkstemp()
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_, tmpfilename2 = tempfile.mkstemp()
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try:
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fp = os.fdopen(fd, 'w+')
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fp.write('''#!/bin/sh
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# If stdin fails to get passed during one of the runs, make a note.
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if ! grep -q foo
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then
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echo 'failure' > "$1"
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fi
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# If stdin has failed to get passed during this or a previous run, exit early.
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if grep failure "$1"
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then
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exit 1
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fi
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runs="$(cat $1)"
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if [ -z "$runs" ]
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then
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runs=0
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fi
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runs=$(($runs + 1))
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echo $runs > "$1"
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exit 1
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''')
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fp.close()
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os.chmod(tmpfilename, 0o755)
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self.assertRaises(processutils.ProcessExecutionError,
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utils.execute,
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tmpfilename, tmpfilename2, attempts=10,
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process_input='foo',
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delay_on_retry=False)
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fp = open(tmpfilename2, 'r')
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runs = fp.read()
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fp.close()
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self.assertNotEqual(runs.strip(), 'failure', 'stdin did not '
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'always get passed '
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'correctly')
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runs = int(runs.strip())
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self.assertEqual(10, runs,
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'Ran %d times instead of 10.' % (runs,))
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finally:
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os.unlink(tmpfilename)
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os.unlink(tmpfilename2)
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def test_unknown_kwargs_raises_error(self):
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self.assertRaises(processutils.UnknownArgumentError,
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utils.execute,
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'/usr/bin/env', 'true',
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this_is_not_a_valid_kwarg=True)
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def test_check_exit_code_boolean(self):
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utils.execute('/usr/bin/env', 'false', check_exit_code=False)
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self.assertRaises(processutils.ProcessExecutionError,
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utils.execute,
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'/usr/bin/env', 'false', check_exit_code=True)
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def test_no_retry_on_success(self):
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fd, tmpfilename = tempfile.mkstemp()
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_, tmpfilename2 = tempfile.mkstemp()
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try:
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fp = os.fdopen(fd, 'w+')
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fp.write('''#!/bin/sh
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# If we've already run, bail out.
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grep -q foo "$1" && exit 1
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# Mark that we've run before.
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echo foo > "$1"
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# Check that stdin gets passed correctly.
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grep foo
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''')
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fp.close()
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os.chmod(tmpfilename, 0o755)
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utils.execute(tmpfilename,
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tmpfilename2,
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process_input='foo',
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attempts=2)
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finally:
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os.unlink(tmpfilename)
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os.unlink(tmpfilename2)
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