https://blog.abhipraya.dev/tags/hypothesis/Recent content in Hypothesis on Daffa AbhiprayaHugoen-us© Daffa AbhiprayaMon, 23 Mar 2026 00:00:00 +0700https://blog.abhipraya.dev/ppl/part-b/s2w1-tdd/Mon, 23 Mar 2026 00:00:00 +0700https://blog.abhipraya.dev/ppl/part-b/s2w1-tdd/<h2 id="what-i-worked-on"> <a class="anchor" href="#what-i-worked-on" data-anchor="what-i-worked-on" aria-hidden="true">#</a> What I Worked On </h2> <p>This week I pushed our testing strategy well beyond standard unit tests. The project already had 433 backend and 200 frontend tests with 91% line coverage, but I wanted to answer a harder question: <strong>do our tests actually catch bugs, or do they just execute code?</strong></p> <p>I added four advanced testing approaches: property-based testing (Hypothesis + fast-check), behavioral testing (pytest-bdd with Gherkin), mutation testing (mutmut + Stryker), and test isolation verification (pytest-randomly). The results were eye-opening.</p>