Add tests

tests/unit/providers/test_dict_py2_py3.py

@@ -0,0 +1,149 @@
+"""Dependency injector dict provider unit tests."""
+
+import sys
+
+import unittest2 as unittest
+
+from dependency_injector import providers
+
+
+class DictTests(unittest.TestCase):
+
+    def test_is_provider(self):
+        self.assertTrue(providers.is_provider(providers.Dict()))
+
+    def test_provided_instance_provider(self):
+        provider = providers.Dict()
+        self.assertIsInstance(provider.provided, providers.ProvidedInstance)
+
+    def test_call_with_init_keyword_args(self):
+        provider = providers.Dict(a1='i1', a2='i2')
+
+        dict1 = provider()
+        dict2 = provider()
+
+        self.assertEqual(dict1, {'a1': 'i1', 'a2': 'i2'})
+        self.assertEqual(dict2, {'a1': 'i1', 'a2': 'i2'})
+
+        self.assertIsNot(dict1, dict2)
+
+    def test_call_with_context_keyword_args(self):
+        provider = providers.Dict(a1='i1', a2='i2')
+        self.assertEqual(
+            provider(a3='i3', a4='i4'),
+            {'a1': 'i1', 'a2': 'i2', 'a3': 'i3', 'a4': 'i4'},
+        )
+
+    def test_call_with_provider(self):
+        provider = providers.Dict(
+            a1=providers.Factory(str, 'i1'),
+            a2=providers.Factory(str, 'i2'),
+        )
+        self.assertEqual(provider(), {'a1': 'i1', 'a2': 'i2'})
+
+    def test_fluent_interface(self):
+        provider = providers.Dict() \
+            .add_kwargs(a1='i1', a2='i2')
+        self.assertEqual(provider(), {'a1': 'i1', 'a2': 'i2'})
+
+    def test_set_kwargs(self):
+        provider = providers.Dict() \
+            .add_kwargs(a1='i1', a2='i2') \
+            .set_kwargs(a3='i3', a4='i4')
+        self.assertEqual(provider.kwargs, {'a3': 'i3', 'a4': 'i4'})
+
+    def test_clear_kwargs(self):
+        provider = providers.Dict() \
+            .add_kwargs(a1='i1', a2='i2') \
+            .clear_kwargs()
+        self.assertEqual(provider.kwargs, {})
+
+    def test_call_overridden(self):
+        provider = providers.Dict(a1='i1', a2='i2')
+        overriding_provider1 = providers.Dict(a2='i2', a3='i3')
+        overriding_provider2 = providers.Dict(a3='i3', a4='i4')
+
+        provider.override(overriding_provider1)
+        provider.override(overriding_provider2)
+
+        instance1 = provider()
+        instance2 = provider()
+
+        self.assertIsNot(instance1, instance2)
+        self.assertEqual(instance1, {'a3': 'i3', 'a4': 'i4'})
+        self.assertEqual(instance2, {'a3': 'i3', 'a4': 'i4'})
+
+    def test_deepcopy(self):
+        provider = providers.Dict(a1='i1', a2='i2')
+
+        provider_copy = providers.deepcopy(provider)
+
+        self.assertIsNot(provider, provider_copy)
+        self.assertEqual(provider.kwargs, provider_copy.kwargs)
+        self.assertIsInstance(provider, providers.Dict)
+
+    def test_deepcopy_from_memo(self):
+        provider = providers.Dict(a1='i1', a2='i2')
+        provider_copy_memo = providers.Dict(a1='i1', a2='i2')
+
+        provider_copy = providers.deepcopy(
+            provider,
+            memo={id(provider): provider_copy_memo},
+        )
+
+        self.assertIs(provider_copy, provider_copy_memo)
+
+    def test_deepcopy_args(self):
+        provider = providers.Dict()
+        dependent_provider1 = providers.Factory(list)
+        dependent_provider2 = providers.Factory(dict)
+
+        provider.add_kwargs(d1=dependent_provider1, d2=dependent_provider2)
+
+        provider_copy = providers.deepcopy(provider)
+        dependent_provider_copy1 = provider_copy.kwargs['d1']
+        dependent_provider_copy2 = provider_copy.kwargs['d2']
+
+        self.assertNotEqual(provider.kwargs, provider_copy.kwargs)
+
+        self.assertIs(dependent_provider1.cls, dependent_provider_copy1.cls)
+        self.assertIsNot(dependent_provider1, dependent_provider_copy1)
+
+        self.assertIs(dependent_provider2.cls, dependent_provider_copy2.cls)
+        self.assertIsNot(dependent_provider2, dependent_provider_copy2)
+
+    def test_deepcopy_overridden(self):
+        provider = providers.Dict()
+        object_provider = providers.Object(object())
+
+        provider.override(object_provider)
+
+        provider_copy = providers.deepcopy(provider)
+        object_provider_copy = provider_copy.overridden[0]
+
+        self.assertIsNot(provider, provider_copy)
+        self.assertEqual(provider.kwargs, provider_copy.kwargs)
+        self.assertIsInstance(provider, providers.Dict)
+
+        self.assertIsNot(object_provider, object_provider_copy)
+        self.assertIsInstance(object_provider_copy, providers.Object)
+
+    def test_deepcopy_with_sys_streams(self):
+        provider = providers.Dict()
+        provider.add_kwargs(stdin=sys.stdin, stdout=sys.stdout, stderr=sys.stderr)
+
+        provider_copy = providers.deepcopy(provider)
+
+        self.assertIsNot(provider, provider_copy)
+        self.assertIsInstance(provider_copy, providers.Dict)
+        self.assertIs(provider.kwargs['stdin'], sys.stdin)
+        self.assertIs(provider.kwargs['stdout'], sys.stdout)
+        self.assertIs(provider.kwargs['stderr'], sys.stderr)
+
+    def test_repr(self):
+        provider = providers.Dict(a1=1, a2=2)
+        self.assertEqual(repr(provider),
+                         '<dependency_injector.providers.'
+                         'Dict({0}) at {1}>'.format(
+                             repr(provider.kwargs),
+                             hex(id(provider))))