7
from contextlib import contextmanager
12
def mock_open(filename, contents=None):
13
''' Slightly simpler mock of open to return contents for filename '''
15
if args[0] == filename:
16
return io.StringIO(contents)
19
with patch('__builtin__.open', mock_file):
25
Walk backwords from __file__ looking for config.yaml, load and return the
31
d = os.path.dirname(f)
32
if os.path.isfile(os.path.join(d, 'config.yaml')):
33
config = os.path.join(d, 'config.yaml')
38
logging.error('Could not find config.yaml in any parent directory '
42
return yaml.safe_load(open(config).read())['options']
45
def get_default_config():
47
Load default charm config from config.yaml return as a dict.
48
If no default is set in config.yaml, its value is None.
51
config = load_config()
52
for k, v in config.iteritems():
54
default_config[k] = v['default']
56
default_config[k] = None
60
class CharmTestCase(unittest.TestCase):
61
def setUp(self, obj, patches):
62
super(CharmTestCase, self).setUp()
63
self.patches = patches
65
self.test_config = TestConfig()
66
self.test_relation = TestRelation()
69
def patch(self, method):
70
_m = patch.object(self.obj, method)
72
self.addCleanup(_m.stop)
76
for method in self.patches:
77
setattr(self, method, self.patch(method))
80
class TestConfig(object):
82
self.config = get_default_config()
86
return self.config[attr]
93
def set(self, attr, value):
94
if attr not in self.config:
96
self.config[attr] = value
99
class TestRelation(object):
100
def __init__(self, relation_data={}):
101
self.relation_data = relation_data
103
def set(self, relation_data):
104
self.relation_data = relation_data
106
def get(self, attr=None, unit=None, rid=None):
108
return self.relation_data
109
elif attr in self.relation_data:
110
return self.relation_data.get(attr)