540 lines
18 KiB
Python
540 lines
18 KiB
Python
"""Dependency injector providers unittests."""
|
|
|
|
import unittest2 as unittest
|
|
import dependency_injector as di
|
|
|
|
|
|
class ProviderTests(unittest.TestCase):
|
|
"""Provider test cases."""
|
|
|
|
def setUp(self):
|
|
"""Set test cases environment up."""
|
|
self.provider = di.Provider()
|
|
|
|
def test_is_provider(self):
|
|
"""Test `is_provider` check."""
|
|
self.assertTrue(di.is_provider(self.provider))
|
|
|
|
def test_call(self):
|
|
"""Test call."""
|
|
self.assertRaises(NotImplementedError, self.provider.__call__)
|
|
|
|
def test_delegate(self):
|
|
"""Test creating of provider delegation."""
|
|
delegate1 = self.provider.delegate()
|
|
|
|
self.assertIsInstance(delegate1, di.Delegate)
|
|
self.assertIs(delegate1(), self.provider)
|
|
|
|
delegate2 = self.provider.delegate()
|
|
|
|
self.assertIsInstance(delegate2, di.Delegate)
|
|
self.assertIs(delegate2(), self.provider)
|
|
|
|
self.assertIsNot(delegate1, delegate2)
|
|
|
|
def test_override(self):
|
|
"""Test provider overriding."""
|
|
overriding_provider = di.Provider()
|
|
self.provider.override(overriding_provider)
|
|
self.assertTrue(self.provider.is_overridden)
|
|
|
|
def test_override_with_not_provider(self):
|
|
"""Test provider overriding with not provider instance."""
|
|
self.assertRaises(di.Error, self.provider.override, object())
|
|
|
|
def test_last_overriding(self):
|
|
"""Test getting last overriding provider."""
|
|
overriding_provider1 = di.Provider()
|
|
overriding_provider2 = di.Provider()
|
|
|
|
self.provider.override(overriding_provider1)
|
|
self.assertIs(self.provider.last_overriding, overriding_provider1)
|
|
|
|
self.provider.override(overriding_provider2)
|
|
self.assertIs(self.provider.last_overriding, overriding_provider2)
|
|
|
|
def test_last_overriding_of_not_overridden_provider(self):
|
|
"""Test getting last overriding from not overridden provider."""
|
|
try:
|
|
self.provider.last_overriding
|
|
except di.Error:
|
|
pass
|
|
else:
|
|
self.fail('Got en error in {}'.format(
|
|
str(self.test_last_overriding_of_not_overridden_provider)))
|
|
|
|
def test_reset_last_overriding(self):
|
|
"""Test reseting of last overriding provider."""
|
|
overriding_provider1 = di.Provider()
|
|
overriding_provider2 = di.Provider()
|
|
|
|
self.provider.override(overriding_provider1)
|
|
self.provider.override(overriding_provider2)
|
|
|
|
self.assertIs(self.provider.last_overriding, overriding_provider2)
|
|
|
|
self.provider.reset_last_overriding()
|
|
self.assertIs(self.provider.last_overriding, overriding_provider1)
|
|
|
|
self.provider.reset_last_overriding()
|
|
self.assertFalse(self.provider.is_overridden)
|
|
|
|
def test_reset_last_overriding_of_not_overridden_provider(self):
|
|
"""Test resetting of last overriding on not overridden provier."""
|
|
self.assertRaises(di.Error, self.provider.reset_last_overriding)
|
|
|
|
def test_reset_override(self):
|
|
"""Test reset of provider's override."""
|
|
overriding_provider = di.Provider()
|
|
self.provider.override(overriding_provider)
|
|
|
|
self.assertTrue(self.provider.is_overridden)
|
|
self.assertIs(self.provider.last_overriding, overriding_provider)
|
|
|
|
self.provider.reset_override()
|
|
|
|
self.assertFalse(self.provider.is_overridden)
|
|
try:
|
|
self.provider.last_overriding
|
|
except di.Error:
|
|
pass
|
|
else:
|
|
self.fail('Got en error in {}'.format(
|
|
str(self.test_last_overriding_of_not_overridden_provider)))
|
|
|
|
|
|
class DelegateTests(unittest.TestCase):
|
|
"""Delegate test cases."""
|
|
|
|
def setUp(self):
|
|
"""Set test cases environment up."""
|
|
self.delegated = di.Provider()
|
|
self.delegate = di.Delegate(delegated=self.delegated)
|
|
|
|
def test_is_provider(self):
|
|
"""Test `is_provider` check."""
|
|
self.assertTrue(di.is_provider(self.delegate))
|
|
|
|
def test_init_with_not_provider(self):
|
|
"""Test that delegate accepts only another provider as delegated."""
|
|
self.assertRaises(di.Error, di.Delegate, delegated=object())
|
|
|
|
def test_call(self):
|
|
"""Test returning of delegated provider."""
|
|
delegated1 = self.delegate()
|
|
delegated2 = self.delegate()
|
|
|
|
self.assertIs(delegated1, self.delegated)
|
|
self.assertIs(delegated2, self.delegated)
|
|
|
|
|
|
class FactoryTests(unittest.TestCase):
|
|
"""Factory test cases."""
|
|
|
|
class Example(object):
|
|
"""Example class for Factory provider tests."""
|
|
|
|
def __init__(self, init_arg1=None, init_arg2=None):
|
|
"""Initializer.
|
|
|
|
:param init_arg1:
|
|
:param init_arg2:
|
|
:return:
|
|
"""
|
|
self.init_arg1 = init_arg1
|
|
self.init_arg2 = init_arg2
|
|
|
|
self.attribute1 = None
|
|
self.attribute2 = None
|
|
|
|
self.method1_value = None
|
|
self.method2_value = None
|
|
|
|
def method1(self, value):
|
|
"""Setter method 1."""
|
|
self.method1_value = value
|
|
|
|
def method2(self, value):
|
|
"""Setter method 2."""
|
|
self.method2_value = value
|
|
|
|
def test_is_provider(self):
|
|
"""Test `is_provider` check."""
|
|
self.assertTrue(di.is_provider(di.Factory(self.Example)))
|
|
|
|
def test_init_with_callable(self):
|
|
"""Test creation of provider with a callable."""
|
|
self.assertTrue(di.Factory(credits))
|
|
|
|
def test_init_with_not_callable(self):
|
|
"""Test creation of provider with not a callable."""
|
|
self.assertRaises(di.Error, di.Factory, 123)
|
|
|
|
def test_call(self):
|
|
"""Test creation of new instances."""
|
|
provider = di.Factory(self.Example)
|
|
instance1 = provider()
|
|
instance2 = provider()
|
|
|
|
self.assertIsNot(instance1, instance2)
|
|
self.assertIsInstance(instance1, self.Example)
|
|
self.assertIsInstance(instance2, self.Example)
|
|
|
|
def test_call_with_init_args_simplified_syntax(self):
|
|
"""Test creation of new instances with init args injections.
|
|
|
|
New simplified syntax.
|
|
"""
|
|
provider = di.Factory(self.Example,
|
|
init_arg1='i1',
|
|
init_arg2='i2')
|
|
|
|
instance1 = provider()
|
|
instance2 = provider()
|
|
|
|
self.assertEqual(instance1.init_arg1, 'i1')
|
|
self.assertEqual(instance1.init_arg2, 'i2')
|
|
|
|
self.assertEqual(instance2.init_arg1, 'i1')
|
|
self.assertEqual(instance2.init_arg2, 'i2')
|
|
|
|
self.assertIsNot(instance1, instance2)
|
|
self.assertIsInstance(instance1, self.Example)
|
|
self.assertIsInstance(instance2, self.Example)
|
|
|
|
def test_call_with_init_args_old_syntax(self):
|
|
"""Test creation of new instances with init args injections."""
|
|
provider = di.Factory(self.Example,
|
|
di.KwArg('init_arg1', 'i1'),
|
|
di.KwArg('init_arg2', 'i2'))
|
|
|
|
instance1 = provider()
|
|
instance2 = provider()
|
|
|
|
self.assertEqual(instance1.init_arg1, 'i1')
|
|
self.assertEqual(instance1.init_arg2, 'i2')
|
|
|
|
self.assertEqual(instance2.init_arg1, 'i1')
|
|
self.assertEqual(instance2.init_arg2, 'i2')
|
|
|
|
self.assertIsNot(instance1, instance2)
|
|
self.assertIsInstance(instance1, self.Example)
|
|
self.assertIsInstance(instance2, self.Example)
|
|
|
|
def test_call_with_attributes(self):
|
|
"""Test creation of new instances with attribute injections."""
|
|
provider = di.Factory(self.Example,
|
|
di.Attribute('attribute1', 'a1'),
|
|
di.Attribute('attribute2', 'a2'))
|
|
|
|
instance1 = provider()
|
|
instance2 = provider()
|
|
|
|
self.assertEqual(instance1.attribute1, 'a1')
|
|
self.assertEqual(instance1.attribute2, 'a2')
|
|
|
|
self.assertEqual(instance2.attribute1, 'a1')
|
|
self.assertEqual(instance2.attribute2, 'a2')
|
|
|
|
self.assertIsNot(instance1, instance2)
|
|
self.assertIsInstance(instance1, self.Example)
|
|
self.assertIsInstance(instance2, self.Example)
|
|
|
|
def test_call_with_methods(self):
|
|
"""Test creation of new instances with method injections."""
|
|
provider = di.Factory(self.Example,
|
|
di.Method('method1', 'm1'),
|
|
di.Method('method2', 'm2'))
|
|
|
|
instance1 = provider()
|
|
instance2 = provider()
|
|
|
|
self.assertEqual(instance1.method1_value, 'm1')
|
|
self.assertEqual(instance1.method2_value, 'm2')
|
|
|
|
self.assertEqual(instance2.method1_value, 'm1')
|
|
self.assertEqual(instance2.method2_value, 'm2')
|
|
|
|
self.assertIsNot(instance1, instance2)
|
|
self.assertIsInstance(instance1, self.Example)
|
|
self.assertIsInstance(instance2, self.Example)
|
|
|
|
def test_call_with_context_args(self):
|
|
"""Test creation of new instances with context args."""
|
|
provider = di.Factory(self.Example)
|
|
instance = provider(11, 22)
|
|
|
|
self.assertEqual(instance.init_arg1, 11)
|
|
self.assertEqual(instance.init_arg2, 22)
|
|
|
|
def test_call_with_context_kwargs(self):
|
|
"""Test creation of new instances with context kwargs."""
|
|
provider = di.Factory(self.Example,
|
|
di.KwArg('init_arg1', 1))
|
|
|
|
instance1 = provider(init_arg2=22)
|
|
self.assertEqual(instance1.init_arg1, 1)
|
|
self.assertEqual(instance1.init_arg2, 22)
|
|
|
|
instance1 = provider(init_arg1=11, init_arg2=22)
|
|
self.assertEqual(instance1.init_arg1, 11)
|
|
self.assertEqual(instance1.init_arg2, 22)
|
|
|
|
def test_call_overridden(self):
|
|
"""Test creation of new instances on overridden provider."""
|
|
provider = di.Factory(self.Example)
|
|
overriding_provider1 = di.Factory(dict)
|
|
overriding_provider2 = di.Factory(list)
|
|
|
|
provider.override(overriding_provider1)
|
|
provider.override(overriding_provider2)
|
|
|
|
instance1 = provider()
|
|
instance2 = provider()
|
|
|
|
self.assertIsNot(instance1, instance2)
|
|
self.assertIsInstance(instance1, list)
|
|
self.assertIsInstance(instance2, list)
|
|
|
|
def test_injections(self):
|
|
"""Test getting a full list of injections using Factory.injections."""
|
|
provider = di.Factory(self.Example,
|
|
di.KwArg('init_arg1', 1),
|
|
di.KwArg('init_arg2', 2),
|
|
di.Attribute('attribute1', 3),
|
|
di.Attribute('attribute2', 4),
|
|
di.Method('method1', 5),
|
|
di.Method('method2', 6))
|
|
|
|
injections = provider.injections
|
|
|
|
self.assertEquals(len(injections), 6)
|
|
|
|
|
|
class SingletonTests(unittest.TestCase):
|
|
"""Singleton test cases."""
|
|
|
|
def test_call(self):
|
|
"""Test creation and returning of single object."""
|
|
provider = di.Singleton(object)
|
|
|
|
instance1 = provider()
|
|
instance2 = provider()
|
|
|
|
self.assertIsInstance(instance1, object)
|
|
self.assertIsInstance(instance2, object)
|
|
self.assertIs(instance1, instance2)
|
|
|
|
def test_reset(self):
|
|
"""Test creation and reset of single object."""
|
|
provider = di.Singleton(object)
|
|
|
|
instance1 = provider()
|
|
self.assertIsInstance(instance1, object)
|
|
|
|
provider.reset()
|
|
|
|
instance2 = provider()
|
|
self.assertIsInstance(instance1, object)
|
|
|
|
self.assertIsNot(instance1, instance2)
|
|
|
|
|
|
class ExternalDependencyTests(unittest.TestCase):
|
|
"""ExternalDependency test cases."""
|
|
|
|
def setUp(self):
|
|
"""Set test cases environment up."""
|
|
self.provider = di.ExternalDependency(instance_of=list)
|
|
|
|
def test_init_with_not_class(self):
|
|
"""Test creation with not a class."""
|
|
self.assertRaises(di.Error, di.ExternalDependency, object())
|
|
|
|
def test_is_provider(self):
|
|
"""Test `is_provider` check."""
|
|
self.assertTrue(di.is_provider(self.provider))
|
|
|
|
def test_call_overridden(self):
|
|
"""Test call of overridden external dependency."""
|
|
self.provider.provided_by(di.Factory(list))
|
|
self.assertIsInstance(self.provider(), list)
|
|
|
|
def test_call_overridden_but_not_instance_of(self):
|
|
"""Test call of overridden external dependency, but not instance of."""
|
|
self.provider.provided_by(di.Factory(dict))
|
|
self.assertRaises(di.Error, self.provider)
|
|
|
|
def test_call_not_overridden(self):
|
|
"""Test call of not satisfied external dependency."""
|
|
self.assertRaises(di.Error, self.provider)
|
|
|
|
|
|
class StaticProvidersTests(unittest.TestCase):
|
|
"""Static providers test cases."""
|
|
|
|
def test_is_provider(self):
|
|
"""Test `is_provider` check."""
|
|
self.assertTrue(di.is_provider(di.Class(object)))
|
|
self.assertTrue(di.is_provider(di.Object(object())))
|
|
self.assertTrue(di.is_provider(di.Function(map)))
|
|
self.assertTrue(di.is_provider(di.Value(123)))
|
|
|
|
def test_call_class_provider(self):
|
|
"""Test Class provider call."""
|
|
self.assertIs(di.Class(dict)(), dict)
|
|
|
|
def test_call_object_provider(self):
|
|
"""Test Object provider call."""
|
|
obj = object()
|
|
self.assertIs(di.Object(obj)(), obj)
|
|
|
|
def test_call_function_provider(self):
|
|
"""Test Function provider call."""
|
|
self.assertIs(di.Function(map)(), map)
|
|
|
|
def test_call_value_provider(self):
|
|
"""Test Value provider call."""
|
|
self.assertEqual(di.Value(123)(), 123)
|
|
|
|
def test_call_overridden_class_provider(self):
|
|
"""Test overridden Class provider call."""
|
|
cls_provider = di.Class(dict)
|
|
cls_provider.override(di.Object(list))
|
|
self.assertIs(cls_provider(), list)
|
|
|
|
def test_call_overridden_object_provider(self):
|
|
"""Test overridden Object provider call."""
|
|
obj1 = object()
|
|
obj2 = object()
|
|
obj_provider = di.Object(obj1)
|
|
obj_provider.override(di.Object(obj2))
|
|
self.assertIs(obj_provider(), obj2)
|
|
|
|
def test_call_overridden_function_provider(self):
|
|
"""Test overridden Function provider call."""
|
|
function_provider = di.Function(len)
|
|
function_provider.override(di.Function(sum))
|
|
self.assertIs(function_provider(), sum)
|
|
|
|
def test_call_overridden_value_provider(self):
|
|
"""Test overridden Value provider call."""
|
|
value_provider = di.Value(123)
|
|
value_provider.override(di.Value(321))
|
|
self.assertEqual(value_provider(), 321)
|
|
|
|
|
|
class CallableTests(unittest.TestCase):
|
|
"""Callable test cases."""
|
|
|
|
def example(self, arg1, arg2, arg3):
|
|
"""Example callback."""
|
|
return arg1, arg2, arg3
|
|
|
|
def setUp(self):
|
|
"""Set test cases environment up."""
|
|
self.provider = di.Callable(self.example,
|
|
arg1='a1',
|
|
arg2='a2',
|
|
arg3='a3')
|
|
|
|
def test_init_with_not_callable(self):
|
|
"""Test creation of provider with not callable."""
|
|
self.assertRaises(di.Error, di.Callable, 123)
|
|
|
|
def test_is_provider(self):
|
|
"""Test `is_provider` check."""
|
|
self.assertTrue(di.is_provider(self.provider))
|
|
|
|
def test_call(self):
|
|
"""Test provider call."""
|
|
self.assertEqual(self.provider(), ('a1', 'a2', 'a3'))
|
|
|
|
def test_call_with_args(self):
|
|
"""Test provider call with kwargs priority."""
|
|
provider = di.Callable(self.example,
|
|
arg3='a3')
|
|
self.assertEqual(provider(1, 2), (1, 2, 'a3'))
|
|
|
|
def test_call_with_kwargs_priority(self):
|
|
"""Test provider call with kwargs priority."""
|
|
self.assertEqual(self.provider(arg1=1, arg3=3), (1, 'a2', 3))
|
|
|
|
def test_call_overridden(self):
|
|
"""Test overridden provider call."""
|
|
overriding_provider1 = di.Value((1, 2, 3))
|
|
overriding_provider2 = di.Value((3, 2, 1))
|
|
|
|
self.provider.override(overriding_provider1)
|
|
self.provider.override(overriding_provider2)
|
|
|
|
result1 = self.provider()
|
|
result2 = self.provider()
|
|
|
|
self.assertEqual(result1, (3, 2, 1))
|
|
self.assertEqual(result2, (3, 2, 1))
|
|
|
|
|
|
class ConfigTests(unittest.TestCase):
|
|
"""Config test cases."""
|
|
|
|
def setUp(self):
|
|
"""Set test cases environment up."""
|
|
self.initial_data = dict(key='value',
|
|
category=dict(setting='setting_value'))
|
|
self.provider = di.Config(self.initial_data)
|
|
|
|
def test_is_provider(self):
|
|
"""Test `is_provider` check."""
|
|
self.assertTrue(di.is_provider(self.provider))
|
|
|
|
def test_init_without_initial_value(self):
|
|
"""Test provider's creation with no initial value."""
|
|
self.assertEqual(di.Config()(), dict())
|
|
|
|
def test_call(self):
|
|
"""Test returning of config value."""
|
|
self.assertEqual(self.provider(), self.initial_data)
|
|
|
|
def test_update_from(self):
|
|
"""Test update of config value."""
|
|
self.assertEqual(self.provider(), self.initial_data)
|
|
|
|
self.initial_data['key'] = 'other_value'
|
|
self.provider.update_from(self.initial_data)
|
|
self.assertEqual(self.provider(), self.initial_data)
|
|
|
|
def test_call_child(self):
|
|
"""Test returning of child config values."""
|
|
category = self.provider.category
|
|
category_setting = self.provider.category.setting
|
|
|
|
self.assertTrue(di.is_provider(category))
|
|
self.assertTrue(di.is_provider(category_setting))
|
|
|
|
self.assertEqual(category(), self.initial_data['category'])
|
|
self.assertEqual(category_setting(),
|
|
self.initial_data['category']['setting'])
|
|
|
|
def test_call_deferred_child_and_update_from(self):
|
|
"""Test returning of deferred child config values."""
|
|
self.provider = di.Config()
|
|
category = self.provider.category
|
|
category_setting = self.provider.category.setting
|
|
|
|
self.assertTrue(di.is_provider(category))
|
|
self.assertTrue(di.is_provider(category_setting))
|
|
|
|
self.provider.update_from(self.initial_data)
|
|
|
|
self.assertEqual(category(), self.initial_data['category'])
|
|
self.assertEqual(category_setting(),
|
|
self.initial_data['category']['setting'])
|
|
|
|
def test_call_deferred_child_with_empty_value(self):
|
|
"""Test returning of deferred child config values."""
|
|
self.provider = di.Config()
|
|
category_setting = self.provider.category.setting
|
|
self.assertRaises(di.Error, category_setting)
|