I do this with a custom jasmine matcher in integration tests, you provide the matcher with some objects (which all satisfy the type you are expecting) and the m

I do this with a custom jasmine matcher in integration tests, you provide the matcher with some objects (which all satisfy the type you are expecting) and the matcher tells you if the response satisfies the type. It's a bit rough around the edges, but has been very useful so far. I'd consider creating an npm module if there is interest.