Cognito - Dont run test in ServerMode

tests/test_cognitoidp/test_cognitoidp.py

@@ -14,7 +14,7 @@ from botocore.exceptions import ClientError
 from jose import jws, jwk, jwt
 from nose.tools import assert_raises
 
-from moto import mock_cognitoidp
+from moto import mock_cognitoidp, settings
 from moto.core import ACCOUNT_ID
 
 
@@ -1312,6 +1312,10 @@ def test_admin_update_user_attributes():
             val.should.equal("Jane")
 
 
+# Test will retrieve public key from cognito.amazonaws.com/.well-known/jwks.json,
+# which isnt mocked in ServerMode
+if not settings.TEST_SERVER_MODE:
+
     @mock_cognitoidp
     def test_idtoken_contains_kid_header():
         # https://github.com/spulec/moto/issues/3078
@@ -1335,7 +1339,9 @@ def test_idtoken_contains_kid_header():
         username = str(uuid.uuid4())
         temporary_password = "1TemporaryP@ssword"
         cognito.admin_create_user(
-        UserPoolId=user_pool_id, Username=username, TemporaryPassword=temporary_password
+            UserPoolId=user_pool_id,
+            Username=username,
+            TemporaryPassword=temporary_password,
         )
         result = cognito.admin_initiate_auth(
             UserPoolId=user_pool_id,