adding injections module unittests

tests/test_injections.py

@@ -1,7 +1,13 @@
 """Objects injections unittests."""
 
 import unittest2 as unittest
+
 from objects.injections import Injection
+from objects.injections import InitArg
+from objects.injections import Attribute
+from objects.injections import Method
+
+from objects.providers import NewInstance
 
 
 class InjectionTest(unittest.TestCase):
@@ -15,6 +21,44 @@ class InjectionTest(unittest.TestCase):
         self.assertEqual(injection.injectable, 'some_value')
 
     def test_value_with_scalar_injectable(self):
-        """Test Injection value property."""
+        """Test Injection value property with scalar value."""
         injection = Injection('some_arg_name', 'some_value')
         self.assertEqual(injection.value, 'some_value')
+
+    def test_value_with_provider_injectable(self):
+        """Test Injection value property with provider."""
+        injection = Injection('some_arg_name', NewInstance(object))
+        self.assertIsInstance(injection.value, object)
+
+
+class InitArgTest(unittest.TestCase):
+
+    """Init arg injection test cases."""
+
+    def test_init(self):
+        """Test InitArg creation and initialization."""
+        injection = InitArg('some_arg_name', 'some_value')
+        self.assertEqual(injection.name, 'some_arg_name')
+        self.assertEqual(injection.injectable, 'some_value')
+
+
+class AttributeTest(unittest.TestCase):
+
+    """Attribute injection test cases."""
+
+    def test_init(self):
+        """Test Attribute creation and initialization."""
+        injection = Attribute('some_arg_name', 'some_value')
+        self.assertEqual(injection.name, 'some_arg_name')
+        self.assertEqual(injection.injectable, 'some_value')
+
+
+class MethodTest(unittest.TestCase):
+
+    """Method injection test cases."""
+
+    def test_init(self):
+        """Test Method creation and initialization."""
+        injection = Method('some_arg_name', 'some_value')
+        self.assertEqual(injection.name, 'some_arg_name')
+        self.assertEqual(injection.injectable, 'some_value')