Puru Vijay • 6/21/2025

From 50% Test Failures to 99% Reliability in One Weekend

The article describes a developer's journey to fix a flaky test suite for their Svelte-based drag-and-drop library, Neodrag. Inspired by a talk on testing principles, they reveal an over-engineered setup using a SvelteKit app and Playwright, which led to 50% failure rates. The post critiques their complex architecture and hints at a simpler, more reliable testing approach aligned with how the library's code is actually used.

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#testing #component testing #svelte