def test__alias(self):
test_instance_type = mock.Mock()
container = DIContainer({
'test_instance': {
'type': test_instance_type,
'args': {
'': ["arg1", ],
'arg2': 'arg2',
'arg3': 'rel:inject_rel'
},
'properties': {
'prop1': 'prop1',
'prop2': 'prop2',
'prop3': 'rel:inject_alias'
},
'alias': ['alias_name']
},
'inject_rel': {
'type': mock.Mock(),
'singleton': True,
'properties': {
'name': 'inject_rel'
},
'alias': ['inject_alias']
}
})
instance = container.resolve("alias_name")
inject_rel = container.resolve("inject_rel")
test_instance_type.assert_called_with("arg1", arg2="arg2", arg3=inject_rel)
self.assertEqual(instance.prop1, 'prop1')
self.assertEqual(instance.prop2, 'prop2')
self.assertEqual(instance.prop3, inject_rel)
def test__parent_lookup(self):
"""
Passes if ...
"""
container = DIContainer({
'one': {
'type': 'mock.Mock',
'properties': {
'from': 'parent'
}
}
})
context_settings = {
'two': {
'type': 'mock.Mock',
'properties': {
'from': 'child'
}
}
}
with container.context(context_settings):
self.assertIsNotNone(container.resolve("one"))
self.assertIsNotNone(container.resolve_type("one"))
self.assertRaises(MissingConfigurationError, lambda: container.resolve("three"))
self.assertRaises(MissingConfigurationError, lambda: container.resolve_type("three"))
def test__copy_config(self):
"""
Passes if the settings variable becomes copies and changes do not
take effect.
:return:
"""
conf = {
'a': {
'type': 'mock.Mock'
}
}
container = DIContainer(conf)
self.assertIn('a', container.settings)
self.assertNotIn('b', container.settings)
self.assertRaises(KeyError, lambda: container.resolve('b'))
conf['b'] = {
'type': 'mock.MagicMock'
}
self.assertIn('a', container.settings)
self.assertNotIn('b', container.settings)
self.assertIsNotNone(container.resolve('a'))
self.assertRaises(KeyError, lambda: container.resolve('b'))
def test__non_singleton(self):
"""
Passes if the singleton configuration works and different instances
are given if resolve is called twice.
"""
container = DIContainer({
'non_singleton': DIConfig(type='mock.MagicMock', singleton=False)
})
first = container.resolve('non_singleton')
second = container.resolve('non_singleton')
self.assertNotEqual(first, second)
self.assertNotIn('non_singleton', container.singletons)
def test__singleton(self):
"""
Passes if the singleton configuration works and the same instance
if given if resolve is called twice.
"""
container = DIContainer({
'singleton': DIConfig(type='mock.MagicMock', singleton=True)
})
first = container.resolve('singleton')
second = container.resolve('singleton')
self.assertEqual(first, second)
self.assertIn('singleton', container.singletons)
def inner_test(setting):
container = DIContainer({
'main_instance': DIConfig(
type='mock.MagicMock',
args={'referenced_instance_construct': setting},
properties={'referenced_instance_property': setting}),
'referenced_instance': DIConfig(type='mock.MagicMock', singleton=True)
})
main = container.resolve('main_instance')
referenced = container.resolve('referenced_instance')
self.assertEqual(main.referenced_instance_construct, referenced)
self.assertEqual(main.referenced_instance_property, referenced)
def test__constructor_args(self):
"""
Passes if the registered type becomes constructed with the
overriding args and kwargs.
"""
mock_type = mock.Mock()
container = DIContainer({
'instance': {
'type': mock_type,
'args': {'arg1': 1, 'arg2': 'two'}
}
})
instance = container.resolve("instance")
mock_type.assert_called_with(arg1=1, arg2='two')
mock_type.reset_mock()
instance = container.resolve("instance", arg1='one', arg2=2)
mock_type.assert_called_with(arg1='one', arg2=2)
def inner_test(setting):
container = DIContainer({
'main_instance': DIConfig(
type='mock.MagicMock',
args={'python_version_construct': setting},
properties={'python_version_property': setting})
})
main = container.resolve('main_instance')
self.assertEqual(main.python_version_construct, sys.version)
self.assertEqual(main.python_version_property, sys.version)
def inner_test(setting):
container = DIContainer({
'test_instance': DIConfig(
type='mock.MagicMock',
args={'serializer_constructor': setting},
properties={'serializer_property': setting})
})
instance = container.resolve('test_instance')
self.assertEqual(instance.serializer_constructor, json)
self.assertEqual(instance.serializer_property, json)
def inner_test(setting):
container = DIContainer({
'instance': DIConfig(
type='mock.MagicMock',
args={'attr_value_constructor': setting},
properties={'attr_value_property': setting})
})
instance = container.resolve('instance')
self.assertEqual(instance.attr_value_constructor, ATTR_VALUE)
self.assertEqual(instance.attr_value_property, ATTR_VALUE)
def test__register_replace(self):
"""
Passes if the configuration of `to_be_replaced` becomes replaced.
"""
container = DIContainer({
'to_be_replaced': {
'type': 'mock.Mock',
'properties': {
'id': '123456789'
}
}
})
inst = container.resolve("to_be_replaced")
self.assertEqual(inst.id, '123456789')
repl_config = {'type': 'mock.Mock', 'properties': {'id': '987654321'}}
container.register("to_be_replaced", repl_config, True)
inst = container.resolve("to_be_replaced")
self.assertEqual(inst.id, '987654321')
def test__hooks_called(self):
# TODO: improve.
container = DIContainer({'a': DIConfig(
type='mock.Mock',
args={'': [mock.Mock()], 'b': mock.Mock()}
)}, event_dispatcher=mock.Mock())
container.resolve('a')
container.clear()
container.resolve_type('a')
container.register('b', DIConfig(type='mock.Mock'))
for method in ('initialized', 'before_register', 'after_register',
'after_resolve', 'before_resolve', 'before_build_up',
'after_build_up', 'before_resolve_type', 'after_resolve_type',
'after_clear',):
self.assertTrue(
getattr(container.event_dispatcher, method).called,
'method {0} not called.'.format(method))
def test_events(self):
manager = DIContainer(TEST_DI_SETTINGS, event_dispatcher=mock.MagicMock)
for name in ('jens',):
manager.resolve(name)
manager.resolve_type('jessica')
manager.clear()
manager.register('henrik_2', {
'type': 'test.TestPerson',
'singleton': True,
'args': {'': ['Henrik', 'Blawatt', 24]}
})
for method in ('initialized', 'before_register', 'after_register',
'after_resolve', 'before_resolve', 'before_build_up',
'after_build_up', 'before_resolve_type', 'after_resolve_type',
'after_clear',):
self.assertTrue(
getattr(manager.event_dispatcher, method).called,
'called method {0}.'.format(method)
)
def test_resolver_attr(self):
container = DIContainer({})
container.register('python_sys', {
'type': 'mock.MagicMock',
'args': {
'version_info': attr('sys.version_info')
}
})
py_sys = container.resolve('python_sys')
self.assertEqual(py_sys.version_info, sys.version_info)
def test__assert_init_args(self):
mock_types = mock.Mock()
mock_types.ArgsCalledType = mock.Mock(name='ArgsCalledType')
mock_types.KWargsCalledType = mock.Mock(name='KWargsCalledType')
mock_types.MixedCalledType = mock.Mock(name='MixedCalledType')
sys.modules['mock_types'] = mock_types
args = [mock.Mock(), mock.Mock()]
kwargs = {'a': mock.Mock(), 'b': mock.Mock()}
mixed = {'': args}
mixed.update(kwargs)
container = DIContainer({
'args_instance': DIConfig(type='mock_types.ArgsCalledType', args=args),
'kwargs_instance': DIConfig(type='mock_types.KWargsCalledType', args=kwargs),
'mixed_instance': DIConfig(type='mock_types.MixedCalledType', args=mixed)
})
container.resolve('args_instance')
self.assertEqual(mock_types.ArgsCalledType.called, 1)
mock_types.ArgsCalledType.assert_called_with(*args)
container.resolve('kwargs_instance')
self.assertEqual(mock_types.KWargsCalledType.called, 1)
mock_types.KWargsCalledType.assert_called_with(**kwargs)
container.resolve('mixed_instance')
self.assertEqual(mock_types.MixedCalledType.called, 1)
mock_types.MixedCalledType.assert_called_with(*args, **kwargs)
def test__register_decorator(self):
"""
Passes if `MyService` becomes registered with the given settings.
"""
container = DIContainer({})
@container.register("my_service", settings=dict(properties={'foo': 'bar'}))
class MyService(object):
pass
result = container.resolve("my_service")
self.assertIsNotNone(result)
self.assertEqual(result.foo, "bar")
def test__register_without_settings(self):
"""
Passes if `MyService` becomes registered without providing settings.
"""
container = DIContainer({})
@container.register("my_service")
class MyService(object):
pass
result = container.resolve("my_service")
self.assertIsNotNone(result)
self.assertIsInstance(result, MyService)
def test__extend_path(self):
tmp_file = tempfile.NamedTemporaryFile(mode='w+b', suffix='.py', delete=False)
tmp_file.write(bytes(b'# coding: utf-8\nclass DynamicDummy(object):\n pass'))
tmp_file.close()
basename = os.path.basename(tmp_file.name)
filename, ext = os.path.splitext(basename)
container = DIContainer({
'dynamic': DIConfig(type='{0}:{1}.DynamicDummy'.format(tempfile.tempdir, filename))
})
instance = container.resolve('dynamic')
self.assertIsNotNone(instance)
module_ = sys.modules[filename]
self.assertIsInstance(instance, module_.DynamicDummy)
os.remove(tmp_file.name)
def test__del_singleton_on_register(self):
"""
Passes of the singletons instance becomes deleted on reregistering
the name and replace it.
"""
type_conf = {
"type": "mock.Mock",
"singleton": True
}
container = DIContainer({
"test": type_conf
})
t = container.resolve("test")
self.assertTrue("test" in container.singletons)
container.register("test", type_conf, replace=True)
self.assertFalse("test" in container.singletons)
def test__inject(self):
"""
Passes if the instance with the key `service` becomes injected into
a dummy function.
"""
container = DIContainer({'service': DIConfig(type=mock.Mock, singleton=True)})
@container.inject(service='service')
def some_function(data, service):
service.call_service_function(data)
some_function('data')
some_function(data='data', service=mock.Mock())
some_function('data', mock.Mock())
service = container.resolve('service')
self.assertEqual(service.call_service_function.called, 1)
def test__simple_resolve(self):
"""
Passes if john is created with the given arguments and property settings.
john must be resolvable by `resolve` method and by the containers
__getitem__ method.
"""
john_config = self.get_john_doe_config()
container = DIContainer({'john_doe': john_config})
john_resolve = container.resolve('john_doe')
john_getitem = container.john_doe
self.assertIsNotNone(john_resolve)
self.assertIsNotNone(john_getitem)
for john in (john_getitem, john_resolve):
for key, value in john_config['args'].items():
self.assertEqual(getattr(john, key), value)
for key, value in john_config['properties'].items():
self.assertEqual(getattr(john, key), value)
def test__assert_type(self):
"""
Passes if the type resolution of `type_implemenation` works and
the resolution of `no_type_implementation` raises a `ValueError`.
:return:
"""
container = DIContainer({
'type_implementation': DIConfig(type='mock.MagicMock', assert_type='mock.MagicMock'),
'no_type_implementation': DIConfig(type='object', assert_type='mock.MagicMock')
})
resolved_instance = container.resolve('type_implementation')
self.assertIsNotNone(resolved_instance)
def raises():
container.resolve('no_type_implementation')
self.assertRaises(TypeError, raises)
def test__register(self):
"""
Passes if `runtime_config` is not configured and is configured at the
end of the test. the second registration raises an error.
"""
container = DIContainer({})
def raises_not_registred():
container.resolve('runtime_config')
self.assertRaises(KeyError, raises_not_registred)
container.register('runtime_config', {'type': 'mock.MagicMock'})
runtime_config = container.resolve('runtime_config')
self.assertIsNotNone(runtime_config)
def raises_already_registred():
container.register('runtime_config', {'type': 'mock.MagicMock'})
self.assertRaises(KeyError, raises_already_registred)
def test__mixin(self):
"""
Passes if the created instance is type of the basetype and the given mixins.
"""
base_type = type(str("BaseType"), (object,), {})
mixin_type = type(str("MixinType"), (object,), {})
other_type = type(str("OtherType"), (object,), {})
container = DIContainer({'a': {
'type': base_type,
'mixins': (mixin_type, 'mock.Mock')
}})
a = container.resolve("a")
self.assertIsInstance(a, base_type)
self.assertIsInstance(a, mixin_type)
self.assertIsInstance(a, mock.Mock)
self.assertNotIsInstance(a, other_type)
def test__factory_method(self):
"""
Passes if the `TestClass` becomes created using the
classmethod `create`.
"""
class TestClass:
@classmethod
def create(cls):
return cls()
container = DIContainer({'klass': {
'type': TestClass,
'factory_method': 'create'
}})
with mock.patch.object(TestClass, 'create') as mocked_fn:
mocked_fn.return_value = TestClass()
instance = container.resolve('klass')
self.assertIsNotNone(instance)
self.assertIsInstance(instance, TestClass)
self.assertTrue(mocked_fn.called)
class DIContainerTestCase(unittest.TestCase):
def setUp(self):
self.manager = DIContainer(TEST_DI_SETTINGS)
def test__person(self):
p1 = self.manager.resolve('person')
p2 = self.manager.resolve('person')
self.assertIsNotNone(p1)
self.assertIsNotNone(p2)
self.assertNotEqual(p1, p2)
def test__singleton(self):
j1 = self.manager.resolve('jessica')
j2 = self.manager.resolve('jessica')
self.assertIsNotNone(j1)
self.assertIsNotNone(j2)
self.assertEqual(j1, j2)
def test__relation(self):
jessica = self.manager.resolve('jessica')
jens = self.manager.resolve('jens')
self.assertIsNotNone(jessica)
self.assertIsNotNone(jens)
self.assertEqual(jens.loves, jessica)
self.assertEqual(jens.hobbies, ['Tennis', 'Programming'])
def test__attr(self):
jens1 = self.manager.resolve('jens')
jens2 = self.manager.jens
self.assertEqual(jens1, jens2)
p1 = self.manager.person
p2 = self.manager.person
self.assertNotEqual(p1, p2)
def test__lazy(self):
self.assertIn('jens_nl', self.manager.singletons)
self.assertNotIn('jens', self.manager.singletons)
def test__register(self):
self.manager.register('henrik', {
'type': 'test.TestPerson',
'singleton': True,
'args': {'': ['Henrik', 'Blawatt', 24]}
})
henrik1 = self.manager.henrik
henrik2 = self.manager.resolve('henrik')
self.assertEqual(henrik1, henrik2)
self.assertEqual(henrik1.first_name, 'Henrik')
self.assertEqual(henrik1.last_name, 'Blawatt')
self.assertEqual(henrik1.age, 24)
def test_autopath(self):
def create_tempmodule():
with open(temp_file, 'w') as f:
f.write(
"class AutoPathPerson(object):\n"
" pass\n"
)
create_tempmodule()
jens_autopath = self.manager.jens_autopath
self.assertIsNotNone(jens_autopath)
self.assertEqual(jens_autopath.first_name, 'Jens')
self.assertEqual(jens_autopath.last_name, 'Blawatt')
self.assertIn(temp_path, sys.path)
def test_assertbasetype(self):
def will_raise():
o = self.manager.jens_assert_no_base
assert o
def will_not_raise():
o = self.manager.jens_assert_base
assert o
self.assertRaises(TypeError, will_raise)
try:
will_not_raise()
except Exception as e:
self.fail('raised unexpected error: %s' % e)
def test_logging_mod(self):
objekt = self.manager.logging_mod
self.assertTrue(isinstance(objekt, dict))
module = objekt.get('logging')
self.assertEqual(module.DEBUG, 10)
def test_logging_ref(self):
objekt = self.manager.logging_ref
value = objekt.get('DEBUG')
self.assertTrue(value, 10)
def test_resolve_type(self):
type_ = self.manager.resolve_type('jens')
self.assertEqual(type_, TestPerson)
def test_does_not_exist(self):
def fnc():
self.manager.does_not_exist
self.assertRaises(AttributeError, fnc)
def test_dir(self):
values = dir(self.manager)
for k in TEST_DI_SETTINGS.keys():
self.assertIn(k, values)
def test_register_registered(self):
def fnc():
self.manager.register('jens', dict(type='mock.Mock'))
self.assertRaises(KeyError, fnc)
def test_clear_singleton(self):
def setUp():
self.manager.singletons['foo'] = 'FOO'
self.manager.singletons['bar'] = 'BAR'
setUp()
self.manager.clear('not-in-singletons')
self.manager.clear('foo')
self.assertNotIn('foo', self.manager.singletons)
self.assertIn('bar', self.manager.singletons)
self.manager.singletons = dict()
setUp()
self.manager.clear()
self.assertNotIn('foo', self.manager.singletons)
self.assertNotIn('bar', self.manager.singletons)
def test_events(self):
manager = DIContainer(TEST_DI_SETTINGS, event_dispatcher=mock.MagicMock)
for name in ('jens',):
manager.resolve(name)
manager.resolve_type('jessica')
manager.clear()
manager.register('henrik_2', {
'type': 'test.TestPerson',
'singleton': True,
'args': {'': ['Henrik', 'Blawatt', 24]}
})
for method in ('initialized', 'before_register', 'after_register',
'after_resolve', 'before_resolve', 'before_build_up',
'after_build_up', 'before_resolve_type', 'after_resolve_type',
'after_clear',):
self.assertTrue(
getattr(manager.event_dispatcher, method).called,
'called method {0}.'.format(method)
)
def test_inject(self):
@self.manager.inject(person='jens')
def to_inject_function(person=None):
self.assertIsNotNone(person)
self.assertEqual(person.first_name, 'Jens')
to_inject_function()
def test_inject_force(self):
@self.manager.inject(force=True, person='jens')
def to_inject_function(person=None):
self.assertIsNotNone(person)
self.assertEqual(person.first_name, 'Jens')
to_inject_function(person=self.manager.jens)
def test_inject_noforce(self):
@self.manager.inject(force=False, person='jens')
def to_inject_function(person=None):
self.assertIsNotNone(person)
self.assertEqual(person.first_name, 'Jens')
to_inject_function(person=self.manager.jens)
def test_child_container(self):
ccontainer = self.manager.create_child_container({
'jens': {
'type': 'test.TestPerson',
'args': {
'first_name': 'Jens',
'last_name': 'Backhaus',
'age': 32
}
}
})
jens_bl = self.manager.resolve('jens')
jens_ba = ccontainer.resolve('jens')
self.assertNotEqual(jens_ba, jens_bl)
self.assertEqual(jens_ba.first_name, jens_bl.first_name)
self.assertEqual(jens_ba.last_name, 'Backhaus')
def test_resolver_attr(self):
container = DIContainer({})
container.register('python_sys', {
'type': 'mock.MagicMock',
'args': {
'version_info': attr('sys.version_info')
}
})
py_sys = container.resolve('python_sys')
self.assertEqual(py_sys.version_info, sys.version_info)