feat: #597 Add unit testing for sort_dictionary function

tests/core/utility.test.py

@@ -0,0 +1,36 @@
+"""
+This is the utility unit testing module
+"""
+
+import sys
+import unittest
+from core import utility
+
+sys.path.insert(1, '../../')
+
+
+class UtilityTesting(unittest.TestCase):
+    """
+    This is the class that tests the utility module functions.
+    """
+
+    def test_sort_dictonary(self):
+        """Tests if the function sorts the input dictionary."""
+
+        input_dict = {
+            'a': 1,
+            'c': 3,
+            'd': 23,
+            'b': 2,
+        }
+        sorted_dict = {
+            'a': 1,
+            'b': 2,
+            'c': 3,
+            'd': 23,
+        }
+        self.assertDictEqual(utility.sort_dictonary(input_dict), sorted_dict)
+
+
+if __name__ == '__main__':
+    unittest.main()