Added another test for division functionality

src/test/py/test_primitive_calculations.py

@@ -36,6 +36,9 @@ class primitive_calculations(unittest.TestCase):
     def test_divide_10_by_2_equals_5(self):
         self.assertEqual(divide(10, 2), 5)
 
+    def test_divide_10_by_2_equals_4(self):
+        self.assertEqual(divide(10, 2.5), 4)
+
 
 if __name__ == "__main__":
     unittest.main()