def test_extend_throws_error_when_service_id_does_not_exist(self):
c = MedleyContainer()
c._keys = Mock()
c._keys.__contains__ = Mock(return_value=False)
with self.assertRaises(Exception):
c.extend('foo', self.foo)
def test_match_returns_matched_functions_by_key_name(self):
c = MedleyContainer()
c._keys = set(['foo', 'bar', 'baz'])
def call_fake(id):
values = {'foo': self.foo, 'bar': self.bar, 'baz': self.baz}
return values[id]
with patch.object(MedleyContainer, '__getitem__',
wraps=call_fake) as getitem:
result = c.match("foo")
getitem.assert_called_with('foo')
self.assertEqual(len(result), 1)
self.assertEqual(result.pop(), self.foo)
result = c.match("(foo|bar)")
self.assertEqual(len(result), 2)
self.assertEqual(self.foo in result, True)
self.assertEqual(self.bar in result, True)
result = c.match("(foo|bar|baz)")
self.assertEqual(len(result), 3)
self.assertEqual(self.foo in result, True)
self.assertEqual(self.bar in result, True)
self.assertEqual(self.baz in result, True)
self.assertEqual(self.bat in result, False)
result = c.match("bat")
self.assertEqual(len(result), 0)
def test_getitem_allows_non_function_values(self):
c = MedleyContainer()
c._keys = set([
'str', 'dict', 'list', 'tuple', 'range', 'regex', 'set',
'frozenset', 'boolean', 'int', 'float', 'complex', 'bytes',
'bytearray', 'none'
])
c._values = {
'str': 'foo',
'dict': {
'foo': 'bar'
},
'list': ['foo'],
'tuple': ('foo', ),
'range': range(10),
'regex': r'foo',
'set': set(),
'frozenset': frozenset(),
'boolean': False,
'int': int(10),
'float': float(10.1),
'complex': complex(10),
'bytes': b'bytes',
'bytearray': bytearray(b'bytes'),
'none': None
}
for key in c._keys:
self.assertEqual(c[key], c._values[key])
def test_raw_returns_function_when_exists(self):
c = MedleyContainer()
c._keys = Mock()
c._keys.__contains__ = Mock(return_value=True)
c._raw = {'foo': self.foo}
self.assertEqual(c.raw('foo'), self.foo)
def test_register_does_not_call_setitem_when_no_second_argument(self):
c = MedleyContainer()
provider = Mock(register=Mock())
with patch.object(c, '__setitem__') as setitem:
c.register(provider)
setitem.assert_not_called()
def test_getitem_returns_raw_function_when_id_in_protected_set(self):
c = MedleyContainer()
c._keys = Mock(__contains__=Mock(return_value=True))
c._protected = Mock(__contains__=Mock(return_value=True))
c._values = {'foo': self.foo}
self.assertEqual(c.__getitem__('foo'), self.foo)
def test_constructor_loads_default_values(self):
c = MedleyContainer()
self.assertEqual(c._values, {})
self.assertEqual(c._raw, {})
self.assertEqual(c._factories, set())
self.assertEqual(c._protected, set())
self.assertEqual(c._frozen, set())
self.assertEqual(c._keys, set())
def test_multi_dot_setitem_access(self):
with patch.object(MedleyContainer, '__setitem__') as setitem:
c = MedleyContainer()
c['foo.bar'] = self.foo
setitem.assert_called_with('foo.bar', self.foo)
c['baz.bat'] = self.baz
setitem.assert_called_with('baz.bat', self.baz)
def test_create_extends_decorator_calls_extend(self):
c = MedleyContainer()
c.extend = Mock()
@c.extends('foo')
def foo(c):
return 'bar'
c.extend.assert_called_once()
def test_setitem_adds_id_to_both_values_and_keys_attr(self):
c = MedleyContainer()
c._frozen = Mock(__contains__=Mock(return_value=False))
c._keys = Mock(add=Mock())
c._values = MagicMock()
c.__setitem__('foo', self.foo)
c._values.__setitem__.assert_called_with('foo', self.foo)
c._keys.add.assert_called_with('foo')
def test_service_decorator_calls_setitem(self):
c = MedleyContainer()
c.__setitem__ = Mock()
@c.service('foo')
def foo(c):
return 'bar'
c.__setitem__.assert_called_once()
def test_getitem_executes_factory_if_exists(self):
c = MedleyContainer()
c._keys = Mock(__contains__=Mock(return_value=True))
c._protected = Mock(__contains__=Mock(return_value=False))
c._factories = Mock(__contains__=Mock(return_value=True))
c._values = {'foo': self.foo}
self.assertEqual(c.__getitem__('foo'), 'foo')
self.foo.assert_called_once_with(c)
def test_constructor_calls_set_multiple_times_when_object_is_provided(
self):
with patch.object(MedleyContainer, '__setitem__'):
c = MedleyContainer({
'foo': lambda c: None,
'bar': lambda c: None,
'baz': lambda c: None
})
self.assertEqual(3, c.__setitem__.call_count)
def test_getitem_returns_value_when_id_is_not_function(self):
c = MedleyContainer()
c._keys = Mock(__contains__=Mock(return_value=True))
c._protected = Mock(__contains__=Mock(return_value=False))
c._values = {'foo': 'foo', 'bar': {}, 'baz': [], 'bat': False}
self.assertEqual(c.__getitem__('foo'), 'foo')
self.assertEqual(c.__getitem__('bar'), {})
self.assertEqual(c.__getitem__('baz'), [])
self.assertEqual(c.__getitem__('bat'), False)
def test_throws_error_on_invalid_id(self):
c = MedleyContainer()
with self.assertRaises(Exception):
c['foo']
with self.assertRaises(Exception):
c['bar']
with self.assertRaises(Exception):
c['baz']
def test_extends_wraps_function_and_calls_setitem(self):
c = MedleyContainer()
c._keys = set(['foo'])
c._values = {'foo': self.foo}
with patch.object(MedleyContainer, '__setitem__',
wraps=c.__setitem__) as setitem:
result = c.extend('foo', self.bar)
self.assertEqual(type(result), types.FunctionType)
self.assertEqual(c['foo'], result(c))
setitem.assert_called_once()
def test_create_factory_decorator_calls_factory(self):
c = MedleyContainer()
c.__setitem__ = Mock()
c.factory = Mock(return_value='bar')
@c.create_factory('foo')
def foo(c):
return 'bar'
c.__setitem__.assert_called_once_with('foo', 'bar')
c.factory.assert_called_once()
def test_del_operator(self):
with patch.object(MedleyContainer, '__delitem__') as delitem:
c = MedleyContainer()
del c['foo']
delitem.assert_called_with('foo')
del c['bar']
delitem.assert_called_with('bar')
del c['baz']
delitem.assert_called_with('baz')
def test_register_sets_ids_from_second_argument(self):
c = MedleyContainer()
provider = Mock(register=Mock())
with patch.object(c, '__setitem__') as setitem:
c.register(provider, {
'foo': self.foo,
'bar': self.bar,
'baz': self.baz
})
self.assertEqual(setitem.call_count, 3)
def test_getitem_stores_raw_function_and_freezes(self):
c = MedleyContainer()
c._keys = Mock(__contains__=Mock(return_value=True))
c._protected = Mock(__contains__=Mock(return_value=False))
c._factories = Mock(__contains__=Mock(return_value=False))
c._frozen = Mock(add=Mock())
c._values = {'foo': self.foo}
self.assertEqual(c.__getitem__('foo'), 'foo')
self.assertEqual(c._values, {'foo': 'foo'})
self.assertEqual(c._raw, {'foo': self.foo})
c._frozen.add.assert_called_with('foo')
def test_raw_returns_raw_function_from_values_attr_when_it_does_not_exist_in_raw_attr(
self):
c = MedleyContainer()
c._keys = Mock()
c._keys.__contains__ = Mock(return_value=True)
c._raw = Mock()
c._raw.__contains__ = Mock(return_value=False)
c._values = {'foo': self.foo}
self.assertEqual(c.raw('foo'), self.foo)
c._keys.__contains__.assert_called_with('foo')
c._raw.__contains__.assert_called_with('foo')
def test_factory_throws_error_if_arg_not_function(self):
c = MedleyContainer()
with self.assertRaises(Exception):
c.factory('foo')
with self.assertRaises(Exception):
c.factory(False)
with self.assertRaises(Exception):
c.factory(r'match')
with self.assertRaises(Exception):
c.factory(0xf)
def test_extends_adds_wrapped_function_to_factories_when_exists(self):
c = MedleyContainer()
c._keys = set(['foo'])
c._values = {'foo': self.foo}
factories = set([self.foo])
with patch.object(c, '_factories') as f:
f.__contains__.side_effect = factories.__contains__
f.add.side_effect = factories.add
f.remove.side_effect = factories.remove
c.extend('foo', self.bar)
f.__contains__.assert_called_with(self.foo)
f.remove.assert_called_once()
f.add.assert_called_once()
def test_factory_adds_factory_function_to_factories_attr(self):
c = MedleyContainer()
factories = set()
with patch.object(c, '_factories', wraps=factories):
c.factory(self.foo)
c._factories.add.assert_called_with(self.foo)
c.factory(self.bar)
c._factories.add.assert_called_with(self.bar)
c.factory(self.baz)
c._factories.add.assert_called_with(self.baz)
self.assertEqual(c._factories.add.call_count, 3)
def test_factory_prevents_duplicates(self):
c = MedleyContainer()
factories = set()
with patch.object(c, '_factories', wraps=factories):
c.factory(self.foo)
c._factories.add.assert_called_with(self.foo)
c.factory(self.foo)
c._factories.add.assert_called_with(self.foo)
c.factory(self.foo)
c._factories.add.assert_called_with(self.foo)
self.assertEqual(c._factories.add.call_count, 3)
self.assertEqual(len(factories), 1)
def test_delitem_does_not_delete_from_factories_or_protected_when_id_is_str(
self):
c = MedleyContainer()
c._keys = Mock(__contains__=Mock(return_value=True), discard=Mock())
c._protected = Mock(discard=Mock())
c._factories = Mock(discard=Mock())
c._frozen = Mock(discard=Mock())
c._values = {'foo': 'foo'}
c.__delitem__('foo')
c._factories.discard.assert_not_called()
c._protected.discard.assert_not_called()
self.assertEqual(c._values, {})
self.assertEqual(c._raw, {})
c._frozen.discard.assert_called_with('foo')
c._keys.discard.assert_called_with('foo')
def test_delitem_deletes_from_everywhere_wwhen_id_is_function(self):
c = MedleyContainer()
c._keys = Mock(__contains__=Mock(return_value=True), discard=Mock())
c._protected = Mock(discard=Mock())
c._factories = Mock(discard=Mock())
c._frozen = Mock(discard=Mock())
c._values = {'foo': self.foo}
c._raw = {'foo': self.foo}
self.assertFalse(c.__delitem__('foo'))
c._factories.discard.assert_called_with(self.foo)
c._protected.discard.assert_called_with(self.foo)
self.assertEqual(c._values, {})
self.assertEqual(c._raw, {})
c._frozen.discard.assert_called_with('foo')
c._keys.discard.assert_called_with('foo')
def test_in_operator(self):
def call_fake(id):
values = {
'foo': self.foo,
'@foo': self.foo,
'#foo': self.foo,
'$foo': self.foo,
'bar': self.bar,
'baz': self.baz,
'bat.ban': self.bat
}
return id in values
with patch.object(MedleyContainer, '__contains__',
wraps=call_fake) as contains:
c = MedleyContainer()
self.assertEqual('foo' in c, True)
contains.assert_called_with('foo')
self.assertEqual('@foo' in c, True)
contains.assert_called_with('@foo')
self.assertEqual('#foo' in c, True)
contains.assert_called_with('#foo')
self.assertEqual('$foo' in c, True)
contains.assert_called_with('$foo')
self.assertEqual('bar' in c, True)
contains.assert_called_with('bar')
self.assertEqual('baz' in c, True)
contains.assert_called_with('baz')
self.assertEqual('bat.ban' in c, True)
contains.assert_called_with('bat.ban')
self.assertEqual('fail' in c, False)
contains.assert_called_with('fail')
def test_setitem_access(self):
with patch.object(MedleyContainer, '__setitem__') as setitem:
c = MedleyContainer()
c['foo'] = self.foo
setitem.assert_called_with('foo', self.foo)
c['@foo'] = self.foo
setitem.assert_called_with('@foo', self.foo)
c['$foo'] = self.foo
setitem.assert_called_with('$foo', self.foo)
c['#foo'] = self.foo
setitem.assert_called_with('#foo', self.foo)
c['bar'] = self.bar
setitem.assert_called_with('bar', self.bar)
c['_baz'] = self.baz
setitem.assert_called_with('_baz', self.baz)
def test_getitem_access(self):
def call_fake(id):
values = {
'foo': self.foo,
'@foo': self.foo,
'#foo': self.foo,
'$foo': self.foo,
'bar': self.bar,
'baz': self.baz,
'bat.ban': self.bat
}
return values[id]
with patch.object(MedleyContainer, '__getitem__',
wraps=call_fake) as getitem:
c = MedleyContainer()
self.assertEqual(c['foo'], self.foo)
getitem.assert_called_with('foo')
self.assertEqual(c['@foo'], self.foo)
getitem.assert_called_with('@foo')
self.assertEqual(c['#foo'], self.foo)
getitem.assert_called_with('#foo')
self.assertEqual(c['$foo'], self.foo)
getitem.assert_called_with('$foo')
self.assertEqual(c['bar'], self.bar)
getitem.assert_called_with('bar')
self.assertEqual(c['baz'], self.baz)
getitem.assert_called_with('baz')
self.assertEqual(c['bat.ban'], self.bat)
getitem.assert_called_with('bat.ban')