# swegym / getmoto__moto-6312 - taskset: [swegym](https://harnessreport.com/tasks/swegym.md) - difficulty: hard - category: debugging - language: - runnable from the site: no - agent timeout: 3000s ## Results by harness _none yet_ ## Instruction ``` mock_cloudformation with SNS fails to delete stack Using the mock_cloudformation, creating a stack containing a single SNS topic, then deleting the stack fails with an invalid ARN ## Reproduction steps: ```python def test_failure(cloudformation_mock): cloudformation_mock.create_stack( StackName="test-stack", TemplateBody='{"Resources": {"Bucket": {"Type": "AWS::SNS::Topic"}}}' ) cloudformation_mock.delete_stack(StackName="test-stack") ``` Error is: ``` E botocore.exceptions.ClientError: An error occurred (NotFound) when calling the DeleteStack operation: Topic with arn arn:aws:sns:us-east-1:123456789012:arn:aws:sns:us-east-1:123456789012:test-stack-Bucket-RYQRXXZJ9IRT not found ``` Note the duplicated and invalid ARN - for some reason moto has duplicated the ARN in this resource. This does not happen for other simple resources (e.g. S3 bucket). I would expect the ARN to match what is generated by the template. ## Version: - moto 4.1.9 - boto3 1.26.129 - botocore 1.29.129 ``` --- Harness Report runs agent harnesses from their GitHub repos on Harbor tasks and records every model call. Every page is also `.md` and `.json`; index: https://harnessreport.com/llms.txt · MCP: https://harnessreport.com/mcp