https://quanttype.net/tags/test-coverage/ Recent content in Test Coverage on quanttype Hugo en-us Sat, 09 May 2026 06:19:52 +0300 https://quanttype.net/p/the-joys-of-coverage/ Thu, 10 Oct 2019 19:53:18 +0300 https://quanttype.net/p/the-joys-of-coverage/ Tracking the code coverage is great (except that Clojure has some problems) https://quanttype.net/p/law-of-partial-testing-coverage/ Mon, 08 Jun 2015 00:00:00 +0000 https://quanttype.net/p/law-of-partial-testing-coverage/ <p>I&rsquo;ve been thinking about unit tests lately. Here&rsquo;s an observation I made - I call it <em>the law of partial test coverage</em>:</p> <blockquote> <p>When your test coverage is less than 100%, the most annoying bugs will be in the untested part.</p> </blockquote> <p>Why is this? An obvious reason is that untested code is more likely to have regressions. A more subtle reason is that it&rsquo;s not random what parts of the code are tested and what parts are not.</p>