4c7ebb7cf9
The mock third party library was needed for mock support in py2 runtimes. Since we now only support py36 and later, we can use the standard lib unittest.mock module instead. Note that https://github.com/openstack/charms.openstack is used during tests and he need `mock`, unfortunatelly it doesn't declare `mock` in its requirements so it retrieve mock from other charm project (cross dependency). So we depend on charms.openstack first and when Ib1ed5b598a52375e29e247db9ab4786df5b6d142 will be merged then CI will pass without errors. Depends-On: Ib1ed5b598a52375e29e247db9ab4786df5b6d142 Change-Id: I3286f03d977e6f602f0f50dac0646534d1d6f305
155 lines
4.0 KiB
Python
155 lines
4.0 KiB
Python
# Copyright 2016 Canonical Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import io
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import os
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import logging
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import unittest
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import yaml
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from contextlib import contextmanager
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from unittest.mock import patch, MagicMock
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patch('charmhelpers.contrib.openstack.utils.'
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'set_os_workload_status').start()
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patch('charmhelpers.core.hookenv.status_set').start()
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def load_config():
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'''Walk backwords from __file__ looking for config.yaml,
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load and return the 'options' section'
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'''
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config = None
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f = __file__
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while config is None:
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d = os.path.dirname(f)
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if os.path.isfile(os.path.join(d, 'config.yaml')):
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config = os.path.join(d, 'config.yaml')
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break
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f = d
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if not config:
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logging.error('Could not find config.yaml in any parent directory '
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'of %s. ' % __file__)
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raise Exception
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return yaml.safe_load(open(config).read())['options']
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def get_default_config():
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'''Load default charm config from config.yaml return as a dict.
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If no default is set in config.yaml, its value is None.
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'''
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default_config = {}
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config = load_config()
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for k, v in config.items():
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if 'default' in v:
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default_config[k] = v['default']
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else:
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default_config[k] = None
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return default_config
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class CharmTestCase(unittest.TestCase):
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def setUp(self, obj, patches):
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super(CharmTestCase, self).setUp()
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self.patches = patches
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self.obj = obj
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self.test_config = TestConfig()
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self.test_relation = TestRelation()
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self.patch_all()
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def patch(self, method):
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_m = patch.object(self.obj, method)
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mock = _m.start()
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self.addCleanup(_m.stop)
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return mock
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def patch_all(self):
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for method in self.patches:
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setattr(self, method, self.patch(method))
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class TestConfig(object):
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def __init__(self):
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self.config = get_default_config()
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def get(self, attr=None):
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if not attr:
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return self.get_all()
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try:
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return self.config[attr]
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except KeyError:
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return None
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def get_all(self):
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return self.config
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def set(self, attr, value):
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if attr not in self.config:
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raise KeyError
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self.config[attr] = value
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class TestRelation(object):
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def __init__(self, relation_data={}):
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self.relation_data = relation_data
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def set(self, relation_data):
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self.relation_data = relation_data
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def get(self, attr=None, unit=None, rid=None):
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if attr is None:
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return self.relation_data
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elif attr in self.relation_data:
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return self.relation_data[attr]
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return None
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class SimpleKV(object):
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'''Simple in-memory replacement for unitdata.kv'''
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def __init__(self):
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self.flushed = False
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self.data = {}
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def get(self, key, default=None):
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return self.data.get(key, default)
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def set(self, key, value):
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self.data[key] = value
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def flush(self):
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self.flushed = True
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@contextmanager
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def patch_open():
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'''Patch open() to allow mocking both open() itself and the file that is
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yielded.
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Yields the mock for "open" and "file", respectively.
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'''
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mock_open = MagicMock(spec='builtins.open')
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mock_file = MagicMock(spec=io.FileIO)
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@contextmanager
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def stub_open(*args, **kwargs):
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mock_open(*args, **kwargs)
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yield mock_file
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with patch('__builtin__.open', stub_open):
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yield mock_open, mock_file
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