Tests

- Improved directory structure
- Added functional and unit tests

api/tests/unit/test_auth.py

@@ -0,0 +1,14 @@
+"""
+This file (test_helper_functions.py) contains the unit tests for the helper_functions.py file.
+"""
+import datetime
+
+import jwt
+from app.auth import *
+
+
+def test_verify_token():
+    """
+    Test verify_token function
+    """
+    assert verify_token(None) is False