Update tests for parsing card identifiers

tests/test_card_client.py

@@ -39,18 +39,16 @@ class TestCardParsingMethods(TestCase):
     def test_get_identifier_by_scheme_can_find_all_ids(self):
         test_card = TestCardParsingMethods.card_with_all_ids
 
-        for id_scheme in IdentifierSchemes.get_registered_schemes():
-
-            expected_val = next(
-                (id['value'] for id in test_card['identifiers'] if id['scheme'] == str(id_scheme))
-            )
+        for identifier_dict in test_card['identifiers']:
+            scheme = identifier_dict['scheme']
+            value = identifier_dict['value']
 
             self.assertEqual(
-                CardClient.get_identifier_by_scheme(test_card, id_scheme),
-                f'{expected_val}@{id_scheme}'.lower()
+                CardClient.get_identifier_by_scheme(test_card, scheme),
+                f'{value}@{scheme}'.lower()
             )
 
-    def test_get_identifier_by_scheme_returns_none_for_no_matching_identifer(self):
+    def test_get_identifier_by_scheme_returns_none_for_no_matching_identifier(self):
         test_card = {'identifiers': []}
 
         for id_scheme in IdentifierSchemes.get_registered_schemes():