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this post was submitted on 05 Apr 2024
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Programming
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It's one thing to claim that tests need time to run.
It's an entirely different thing to claim that the time it takes to run tests is proportional to test coverage.
More often than not, you have massively expensive and naive test fixtures in place that act as performance boat anchors and are massive bottlenecks. Thousands of tests run instantly if each test takes around a few milliseconds to run. For perspective, the round trip of network request that crosses the world is around a couple of hundreds of milliseconds. A thousand of sequential requests takes only a couple of minutes. If each of your tests takes that long to run, your tests are fundamentally broken.
I agree 100%