# Introduction From `morphRelationCreationPayload` to `flatFieldMetadatas` close https://github.com/twentyhq/core-team-issues/issues/1406 ## Unit testing I'm not a fan of covering things this way, where we could have some strong integration testing tests in the first place But I wanted to freeze the optimistic path computation, also covered the exception because it was cheap, doesn't mean I won't cover them through integration tests later anw