cognito-idp – Implemented update_user_pool (#4433) (#4435)

moto/cognitoidp/models.py

@@ -388,6 +388,10 @@ class CognitoIdpBackend(BaseBackend):
 
         return user_pool
 
+    def update_user_pool(self, user_pool_id, extended_config):
+        user_pool = self.describe_user_pool(user_pool_id)
+        user_pool.extended_config = extended_config
+
     def delete_user_pool(self, user_pool_id):
         if user_pool_id not in self.user_pools:
             raise ResourceNotFoundError(user_pool_id)

moto/cognitoidp/responses.py

@@ -70,6 +70,10 @@ class CognitoIdpResponse(BaseResponse):
         user_pool = cognitoidp_backends[self.region].describe_user_pool(user_pool_id)
         return json.dumps({"UserPool": user_pool.to_json(extended=True)})
 
+    def update_user_pool(self):
+        user_pool_id = self._get_param("UserPoolId")
+        cognitoidp_backends[self.region].update_user_pool(user_pool_id, self.parameters)
+
     def delete_user_pool(self):
         user_pool_id = self._get_param("UserPoolId")
         cognitoidp_backends[self.region].delete_user_pool(user_pool_id)

tests/test_cognitoidp/test_cognitoidp.py

@@ -215,6 +215,43 @@ def test_describe_user_pool():
     result["UserPool"]["LambdaConfig"]["PreSignUp"].should.equal(value)
 
 
+@mock_cognitoidp
+def test_update_user_pool():
+    conn = boto3.client("cognito-idp", "us-east-1")
+
+    name = str(uuid.uuid4())
+    user_pool_details = conn.create_user_pool(
+        PoolName=name,
+        Policies={
+            "PasswordPolicy": {
+                "MinimumLength": 12,
+                "RequireUppercase": False,
+                "RequireLowercase": False,
+                "RequireNumbers": False,
+                "RequireSymbols": False,
+            }
+        },
+    )
+
+    new_policies = {
+        "PasswordPolicy": {
+            "MinimumLength": 16,
+            "RequireUppercase": True,
+            "RequireLowercase": True,
+            "RequireNumbers": True,
+            "RequireSymbols": True,
+        }
+    }
+    conn.update_user_pool(
+        UserPoolId=user_pool_details["UserPool"]["Id"], Policies=new_policies
+    )
+
+    updated_user_pool_details = conn.describe_user_pool(
+        UserPoolId=user_pool_details["UserPool"]["Id"]
+    )
+    updated_user_pool_details["UserPool"]["Policies"].should.equal(new_policies)
+
+
 @mock_cognitoidp
 def test_delete_user_pool():
     conn = boto3.client("cognito-idp", "us-west-2")