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51.1.2
by Adam Gandelman
Check in start of py redux. |
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import logging |
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import unittest |
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import os |
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import yaml |
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from contextlib import contextmanager |
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from mock import patch, MagicMock |
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def load_config(): |
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'''
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Walk backwords from __file__ looking for config.yaml, load and return the
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'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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140.3.16
by Felipe Reyes
fix lint warning |
26 |
'of %s. ' % f) |
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51.1.2
by Adam Gandelman
Check in start of py redux. |
27 |
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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'''
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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.iteritems(): |
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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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52.3.9
by James Page
Rebase on trunk |
48 |
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51.1.2
by Adam Gandelman
Check in start of py redux. |
49 |
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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|
52.3.9
by James Page
Rebase on trunk |
69 |
|
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51.1.2
by Adam Gandelman
Check in start of py redux. |
70 |
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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83.1.10
by james.page at ubuntu
Refine service guard function, disable by default |
85 |
if attr not in self.config: |
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raise KeyError |
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self.config[attr] = value |
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51.1.2
by Adam Gandelman
Check in start of py redux. |
88 |
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class TestRelation(object): |
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52.3.9
by James Page
Rebase on trunk |
91 |
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51.1.2
by Adam Gandelman
Check in start of py redux. |
92 |
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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@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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mock_open = MagicMock(spec=open) |
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mock_file = MagicMock(spec=file) |
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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 |