Add delete_user test

Author: stevenclouston

authsignal/client_tests.py

@@ -86,6 +86,15 @@ def test_get_action(self):
         self.assertEqual(response["state"], "ALLOW")
         self.assertEqual(response["state_updated_at"], "2022-07-25T03:19:00.316Z")
 
+    @responses.activate
+    def test_delete_user(self):
+        responses.add(responses.DELETE, f"{base_url}/users/1234",
+                      json={"message": "User deleted successfully"}, status=200)
+
+        response = self.authsignal_client.delete_user(user_id="1234")
+
+        self.assertEqual(response["message"], "User deleted successfully")
+
 class ValidateChallenge(unittest.TestCase):
     def setUp(self):
         self.api_key='SECRET'