Add few tests for injections

tests/test_injections.py

@@ -0,0 +1,59 @@
+"""Dependency injector container unit tests."""
+
+import unittest2 as unittest
+
+from dependency_injector import injections
+from dependency_injector import providers
+
+
+class PositionalInjectionTests(unittest.TestCase):
+
+    def test_init_with_kwargs(self):
+        injections.PositionalInjection(value=1)
+
+    def test_isinstance(self):
+        injection = injections.PositionalInjection(1)
+        self.assertIsInstance(injection, injections.Injection)
+
+    def test_get_value_with_not_provider(self):
+        injection = injections.PositionalInjection(123)
+        self.assertEquals(injection.get_value(), 123)
+
+    def test_get_value_with_factory(self):
+        injection = injections.PositionalInjection(providers.Factory(object))
+
+        obj1 = injection.get_value()
+        obj2 = injection.get_value()
+
+        self.assertIs(type(obj1), object)
+        self.assertIs(type(obj2), object)
+        self.assertIsNot(obj1, obj2)
+
+
+class NamedInjectionTests(unittest.TestCase):
+
+    def test_init_with_kwargs(self):
+        injections.NamedInjection(name='name', value=1)
+
+    def test_isinstance(self):
+        injection = injections.NamedInjection('name', 1)
+        self.assertIsInstance(injection, injections.Injection)
+
+    def test_get_name(self):
+        injection = injections.NamedInjection('name', 123)
+        self.assertEquals(injection.get_name(), 'name')
+
+    def test_get_value_with_not_provider(self):
+        injection = injections.NamedInjection('name', 123)
+        self.assertEquals(injection.get_value(), 123)
+
+    def test_get_value_with_factory(self):
+        injection = injections.NamedInjection('name',
+                                              providers.Factory(object))
+
+        obj1 = injection.get_value()
+        obj2 = injection.get_value()
+
+        self.assertIs(type(obj1), object)
+        self.assertIs(type(obj2), object)
+        self.assertIsNot(obj1, obj2)