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I see a uncredible difference in the architecture quality in projects with unit tests. People test forces people to think about interface, forces them to use th

I see a uncredible difference in the architecture quality in projects with unit tests. People test forces people to think about interface, forces them to use their code, torture it, break it, knowing it in and out and see the limits. Just for the intellectual tool UT are, they are valuable. Now they have a cost, and sometimes they are not worth it, but they are certainly not useless.

im_down_w_otp 10y ago
Writing property-based tests will incentivize you to think about those things too, and it they will actually exercise your code more strenuously across a wide spectrum of inputs and corner cases. Unit tests seem mostly worthwhile as documentation or tutorial for how to use something or for what something is "supposed to" do. But as validation of completeness, correctness, or coverage of your design and implementation... they fall extremely short and leave a lot to be desired. In either case, if software quality and reliability actually matters to your problem domain, then mutation testing should be considered an absolute prerequisite to any kind of testing method (unit, property-based, integration, etc.) otherwise you have almost no way to measure the quality of your tests.