added dummy class and began writing unit tests

tests/test_utils.py

@@ -0,0 +1,63 @@
+from unittest import TestCase
+from tests.utils.dummy_class import DummyClass
+
+
+class DummyClassTestCase(TestCase):
+    """
+    Unit testing class for the DummyClass class.
+    """
+    def setUp(self):
+        """
+        Initialize testing data.
+        """
+        self.a = 10
+        self.b = 5
+        self.add_function = lambda instance: instance.a + instance.b
+        self.substract_function = lambda instance: instance.a - instance.b
+
+    def test_init(self):
+        """
+        Test the __init__ method.
+
+        @raise AssertionError: If the test fails.
+        """
+        dummy = DummyClass(attributes={'a': self.a, 'b': self.b},
+                           functions={'add': self.add_function, 'subtract': self.substract_function})
+
+        self.assertEquals(self.a, dummy.a)
+        self.assertEquals(self.b, dummy.b)
+
+    def test_invalid_init(self):
+        """
+        Test the __init__ method with invalid parameters.
+
+        @raise AssertionError if the test fails:
+        """
+        with self.assertRaises(ValueError):
+            DummyClass(attributes={'a': self.add_function}, functions={'add': self.a})
+
+    def test_add(self):
+        """
+        Test a dummy class initialized with an add function.
+
+        @raise AssertionError: If the test fails.
+        """
+        dummy = DummyClass(attributes={'a': self.a, 'b': self.b},
+                           functions={'add': self.add_function})
+
+        self.assertEquals(15, dummy.add())
+
+    def test_subtract(self):
+        """
+        Test a dummy class initialized with a subtract function.
+
+        @raise AssertionError: If the test fails.
+        """
+        dummy = DummyClass(attributes={'a': self.a, 'b': self.b},
+                           functions={'subtract': self.substract_function})
+
+        self.assertEquals(5, dummy.subtract())
+
+
+
+