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Adam Wathan:
Preventing API Drift with Contract Tests
Feb 03, 2016 @ 18:11:21

In this post to his site Adam Wathan shares a screencast talking about changing APIs (the structure of your code, not like REST/SOAP APIs) and how "API drift" could cause problems in your testing.

One of the risks of writing your own test doubles is that the API of the double can fall out of sync with the API of the real implementation.

In this screencast I walk through an example that explains: how interfaces can provide a false sense of security, why tests make better contracts than interfaces and how to run multiple implementations against a shared set of contract tests.

You can watch the screencast either through the in-page video player or over on Vimeo directly. It's about 10 minutes long but it covers an interesting topic that could throw you if you're not careful in your testing/code changes.

tagged: screencast contract test unittest api drift interface changes

Link: http://adamwathan.me/2016/02/01/preventing-api-drift-with-contract-tests/


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