206 lines
8.1 KiB
Python
206 lines
8.1 KiB
Python
# Copyright 2012, VMware, 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 mock
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import testtools
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from neutron.agent.linux import utils
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from neutron.tests import base
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_marker = object()
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class AgentUtilsExecuteTest(base.BaseTestCase):
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def setUp(self):
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super(AgentUtilsExecuteTest, self).setUp()
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self.test_file = self.get_temp_file_path('test_execute.tmp')
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open(self.test_file, 'w').close()
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self.process = mock.patch('eventlet.green.subprocess.Popen').start()
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self.process.return_value.returncode = 0
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self.mock_popen = self.process.return_value.communicate
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def test_without_helper(self):
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expected = "%s\n" % self.test_file
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self.mock_popen.return_value = [expected, ""]
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result = utils.execute(["ls", self.test_file])
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self.assertEqual(result, expected)
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def test_with_helper(self):
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expected = "ls %s\n" % self.test_file
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self.mock_popen.return_value = [expected, ""]
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self.config(group='AGENT', root_helper='echo')
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result = utils.execute(["ls", self.test_file], run_as_root=True)
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self.assertEqual(result, expected)
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def test_stderr_true(self):
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expected = "%s\n" % self.test_file
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self.mock_popen.return_value = [expected, ""]
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out = utils.execute(["ls", self.test_file], return_stderr=True)
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self.assertIsInstance(out, tuple)
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self.assertEqual(out, (expected, ""))
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def test_check_exit_code(self):
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self.mock_popen.return_value = ["", ""]
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stdout = utils.execute(["ls", self.test_file[:-1]],
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check_exit_code=False)
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self.assertEqual(stdout, "")
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def test_execute_raises(self):
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self.mock_popen.side_effect = RuntimeError
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self.assertRaises(RuntimeError, utils.execute,
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["ls", self.test_file[:-1]])
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def test_process_input(self):
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expected = "%s\n" % self.test_file[:-1]
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self.mock_popen.return_value = [expected, ""]
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result = utils.execute(["cat"], process_input="%s\n" %
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self.test_file[:-1])
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self.assertEqual(result, expected)
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def test_with_addl_env(self):
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expected = "%s\n" % self.test_file
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self.mock_popen.return_value = [expected, ""]
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result = utils.execute(["ls", self.test_file],
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addl_env={'foo': 'bar'})
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self.assertEqual(result, expected)
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def test_return_code_log_error_raise_runtime(self):
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self.mock_popen.return_value = ('', '')
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self.process.return_value.returncode = 1
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with mock.patch.object(utils, 'LOG') as log:
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self.assertRaises(RuntimeError, utils.execute,
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['ls'])
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self.assertTrue(log.error.called)
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def test_return_code_log_error_no_raise_runtime(self):
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self.mock_popen.return_value = ('', '')
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self.process.return_value.returncode = 1
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with mock.patch.object(utils, 'LOG') as log:
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utils.execute(['ls'], check_exit_code=False)
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self.assertTrue(log.error.called)
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def test_return_code_log_debug(self):
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self.mock_popen.return_value = ('', '')
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with mock.patch.object(utils, 'LOG') as log:
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utils.execute(['ls'])
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self.assertTrue(log.debug.called)
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def test_return_code_raise_runtime_do_not_log_fail_as_error(self):
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self.mock_popen.return_value = ('', '')
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self.process.return_value.returncode = 1
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with mock.patch.object(utils, 'LOG') as log:
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self.assertRaises(RuntimeError, utils.execute,
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['ls'], log_fail_as_error=False)
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self.assertFalse(log.error.called)
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class AgentUtilsGetInterfaceMAC(base.BaseTestCase):
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def test_get_interface_mac(self):
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expect_val = '01:02:03:04:05:06'
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with mock.patch('fcntl.ioctl') as ioctl:
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ioctl.return_value = ''.join(['\x00' * 18,
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'\x01\x02\x03\x04\x05\x06',
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'\x00' * 232])
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actual_val = utils.get_interface_mac('eth0')
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self.assertEqual(actual_val, expect_val)
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class AgentUtilsReplaceFile(base.BaseTestCase):
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def test_replace_file(self):
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# make file to replace
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with mock.patch('tempfile.NamedTemporaryFile') as ntf:
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ntf.return_value.name = '/baz'
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with mock.patch('os.chmod') as chmod:
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with mock.patch('os.rename') as rename:
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utils.replace_file('/foo', 'bar')
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expected = [mock.call('w+', dir='/', delete=False),
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mock.call().write('bar'),
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mock.call().close()]
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ntf.assert_has_calls(expected)
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chmod.assert_called_once_with('/baz', 0o644)
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rename.assert_called_once_with('/baz', '/foo')
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class TestFindChildPids(base.BaseTestCase):
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def test_returns_empty_list_for_exit_code_1(self):
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with mock.patch.object(utils, 'execute',
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side_effect=RuntimeError('Exit code: 1')):
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self.assertEqual(utils.find_child_pids(-1), [])
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def test_returns_empty_list_for_no_output(self):
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with mock.patch.object(utils, 'execute', return_value=''):
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self.assertEqual(utils.find_child_pids(-1), [])
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def test_returns_list_of_child_process_ids_for_good_ouput(self):
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with mock.patch.object(utils, 'execute', return_value=' 123 \n 185\n'):
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self.assertEqual(utils.find_child_pids(-1), ['123', '185'])
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def test_raises_unknown_exception(self):
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with testtools.ExpectedException(RuntimeError):
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with mock.patch.object(utils, 'execute',
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side_effect=RuntimeError()):
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utils.find_child_pids(-1)
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class TestGetRoothelperChildPid(base.BaseTestCase):
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def _test_get_root_helper_child_pid(self, expected=_marker,
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run_as_root=False, pids=None):
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def _find_child_pids(x):
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if not pids:
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return []
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pids.pop(0)
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return pids
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mock_pid = object()
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with mock.patch.object(utils, 'find_child_pids',
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side_effect=_find_child_pids):
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actual = utils.get_root_helper_child_pid(mock_pid, run_as_root)
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if expected is _marker:
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expected = str(mock_pid)
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self.assertEqual(expected, actual)
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def test_returns_process_pid_not_root(self):
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self._test_get_root_helper_child_pid()
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def test_returns_child_pid_as_root(self):
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self._test_get_root_helper_child_pid(expected='2', pids=['1', '2'],
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run_as_root=True)
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def test_returns_last_child_pid_as_root(self):
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self._test_get_root_helper_child_pid(expected='3',
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pids=['1', '2', '3'],
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run_as_root=True)
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def test_returns_none_as_root(self):
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self._test_get_root_helper_child_pid(expected=None, run_as_root=True)
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class TestPathUtilities(base.BaseTestCase):
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def test_remove_abs_path(self):
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self.assertEqual(['ping', '8.8.8.8'],
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utils.remove_abs_path(['/usr/bin/ping', '8.8.8.8']))
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def test_cmdlines_are_equal(self):
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self.assertTrue(utils.cmdlines_are_equal(
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['ping', '8.8.8.8'],
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['/usr/bin/ping', '8.8.8.8']))
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def test_cmdlines_are_equal_different_commands(self):
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self.assertFalse(utils.cmdlines_are_equal(
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['ping', '8.8.8.8'],
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['/usr/bin/ping6', '8.8.8.8']))
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