14df0c7721
TrivialFix Change-Id: I2dde2430011a777bffc1f0d25886784c9ed04b68
155 lines
5.7 KiB
Python
155 lines
5.7 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2010-2011 OpenStack Foundation
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# Copyright (c) 2013 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 logging
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import os
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import testtools
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import fixtures
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import mock
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from oslo_utils import strutils
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class TestCase(testtools.TestCase):
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"""Test case base class for all unit tests."""
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def setUp(self):
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"""Run before each test method to initialize test environment."""
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super(TestCase, self).setUp()
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test_timeout = os.environ.get('OS_TEST_TIMEOUT', 0)
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try:
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test_timeout = int(test_timeout)
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except ValueError:
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# If timeout value is invalid do not set a timeout.
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test_timeout = 0
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if test_timeout > 0:
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self.useFixture(fixtures.Timeout(test_timeout, gentle=True))
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self.useFixture(fixtures.NestedTempfile())
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self.useFixture(fixtures.TempHomeDir())
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environ_enabled = (lambda var_name:
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strutils.bool_from_string(os.environ.get(var_name)))
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if environ_enabled('OS_STDOUT_CAPTURE'):
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stdout = self.useFixture(fixtures.StringStream('stdout')).stream
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self.useFixture(fixtures.MonkeyPatch('sys.stdout', stdout))
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if environ_enabled('OS_STDERR_CAPTURE'):
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stderr = self.useFixture(fixtures.StringStream('stderr')).stream
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self.useFixture(fixtures.MonkeyPatch('sys.stderr', stderr))
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if environ_enabled('OS_LOG_CAPTURE'):
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log_format = '%(levelname)s [%(name)s] %(message)s'
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if environ_enabled('OS_DEBUG'):
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level = logging.DEBUG
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else:
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level = logging.INFO
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self.useFixture(fixtures.LoggerFixture(nuke_handlers=False,
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format=log_format,
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level=level))
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def _common_cleanup(self):
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"""Runs after each test method to tear down test environment."""
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# Stop any timers
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for x in self.injected:
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try:
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x.stop()
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except AssertionError:
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pass
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# Delete attributes that don't start with _ so they don't pin
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# memory around unnecessarily for the duration of the test
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# suite
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for key in [k for k in self.__dict__.keys() if k[0] != '_']:
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del self.__dict__[key]
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def log_level(self, level):
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"""Set logging level to the specified value."""
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log_root = logging.getLogger(None).logger
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log_root.setLevel(level)
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def mock_object(self, obj, attr_name, new_attr=None, **kwargs):
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"""Use python mock to mock an object attribute
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Mocks the specified objects attribute with the given value.
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Automatically performs 'addCleanup' for the mock.
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"""
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if not new_attr:
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new_attr = mock.Mock()
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patcher = mock.patch.object(obj, attr_name, new_attr, **kwargs)
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patcher.start()
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self.addCleanup(patcher.stop)
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# Useful assertions
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def assertDictMatch(self, d1, d2, approx_equal=False, tolerance=0.001):
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"""Assert two dicts are equivalent.
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This is a 'deep' match in the sense that it handles nested
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dictionaries appropriately.
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NOTE:
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If you don't care (or don't know) a given value, you can specify
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the string DONTCARE as the value. This will cause that dict-item
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to be skipped.
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"""
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def raise_assertion(msg):
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d1str = d1
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d2str = d2
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base_msg = ('Dictionaries do not match. %(msg)s d1: %(d1str)s '
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'd2: %(d2str)s' %
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{'msg': msg, 'd1str': d1str, 'd2str': d2str})
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raise AssertionError(base_msg)
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d1keys = set(d1.keys())
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d2keys = set(d2.keys())
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if d1keys != d2keys:
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d1only = d1keys - d2keys
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d2only = d2keys - d1keys
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raise_assertion('Keys in d1 and not d2: %(d1only)s. '
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'Keys in d2 and not d1: %(d2only)s' %
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{'d1only': d1only, 'd2only': d2only})
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for key in d1keys:
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d1value = d1[key]
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d2value = d2[key]
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try:
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error = abs(float(d1value) - float(d2value))
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within_tolerance = error <= tolerance
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except (ValueError, TypeError):
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# If both values aren't convertible to float, just ignore
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# ValueError if arg is a str, TypeError if it's something else
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# (like None)
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within_tolerance = False
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if hasattr(d1value, 'keys') and hasattr(d2value, 'keys'):
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self.assertDictMatch(d1value, d2value)
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elif 'DONTCARE' in (d1value, d2value):
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continue
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elif approx_equal and within_tolerance:
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continue
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elif d1value != d2value:
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raise_assertion("d1['%(key)s']=%(d1value)s != "
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"d2['%(key)s']=%(d2value)s" %
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{
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'key': key,
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'd1value': d1value,
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'd2value': d2value,
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})
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