CloudFormation Resource Provider contract_invalid_create test fails

[tomwwright]

Running cfn test -- -k contract_invalid_create fails with this error:

cloudformation_cli_python_lib.exceptions.InternalFailure: __init__() got an unexpected keyword argument 'Arn' (TypeError)

Investigating the payload provided to the test endpoint, it fails because the resource properties are in the top-level request object instead of being in desiredResourceState and previousResourceState.

This seems to be a bug in the code that is generating the "invalid" create request.

Solution is to run tests excluding this problematic test:

cfn test -- -k 'not contract_invalid_create'