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We use Pact[1], but the idea of flakeyness is interesting. Would you end up with non deterministic builds with the flakeyness? I imagine you could get enough 404's to trigger a Circuit Breaker in your application and this would propagate to tests sometimes failing.

[1]: https://github.com/realestate-com-au/pact

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I do like the idea of Pact, I looked into it a few years ago. I guess what I wanted for this was a zero(ish) amount of code solution.

I think Pact and MJ have different advantages over each other.

Pact gives you more options but I think MJ is simpler to use and gives you options in terms of testing performance which is often neglected.

We haven't used the flakiness for builds, but just for performance tests. So we set up our service to point to a flaky MJ and the use siege to see how it handles it.

In one instance saw how certain scenarios meant we weren't releasing connections which then killed the app.

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