From b3fa9bbb08f81248d34f587f420bc91ec105cbd6 Mon Sep 17 00:00:00 2001
From: cm-iwata <38879253+cm-iwata@users.noreply.github.com>
Date: Sat, 30 Dec 2023 23:20:36 +0900
Subject: [PATCH] CognitoIDP: fix no scopes in create_resource_server (#7163)
 (#7167)

---
 moto/cognitoidp/models.py                |  2 +-
 tests/test_cognitoidp/test_cognitoidp.py | 20 ++++++++++++++++++++
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/moto/cognitoidp/models.py b/moto/cognitoidp/models.py
index 577e194de..f0cc9082f 100644
--- a/moto/cognitoidp/models.py
+++ b/moto/cognitoidp/models.py
@@ -909,7 +909,7 @@ class CognitoResourceServer(BaseModel):
             "Name": self.name,
         }
 
-        if len(self.scopes) != 0:
+        if self.scopes:
             res.update({"Scopes": self.scopes})
 
         return res
diff --git a/tests/test_cognitoidp/test_cognitoidp.py b/tests/test_cognitoidp/test_cognitoidp.py
index 9b5b1db1f..ed2851096 100644
--- a/tests/test_cognitoidp/test_cognitoidp.py
+++ b/tests/test_cognitoidp/test_cognitoidp.py
@@ -3578,6 +3578,26 @@ def test_create_resource_server():
     assert ex.value.response["ResponseMetadata"]["HTTPStatusCode"] == 400
 
 
+@mock_cognitoidp
+def test_create_resource_server_with_no_scopes():
+    client = boto3.client("cognito-idp", "us-west-2")
+    name = str(uuid.uuid4())
+    res = client.create_user_pool(PoolName=name)
+
+    user_pool_id = res["UserPool"]["Id"]
+    identifier = "http://localhost.localdomain"
+    name = "local server"
+
+    res = client.create_resource_server(
+        UserPoolId=user_pool_id, Identifier=identifier, Name=name
+    )
+
+    assert res["ResourceServer"]["UserPoolId"] == user_pool_id
+    assert res["ResourceServer"]["Identifier"] == identifier
+    assert res["ResourceServer"]["Name"] == name
+    assert "Scopes" not in res["ResourceServer"]
+
+
 @mock_cognitoidp
 def test_describe_resource_server():