Component Testing Strategy

A design system's testing needs grow with its maturity and consumer count. Standing up every testing capability — linting, visual QA, accessibility, visual regression, internationalization — on day one wastes effort a young system can't yet afford and delays getting components in front of real consumers. But testing nothing as the system scales lets regressions reach consumers silently, and it only takes a few before they stop trusting the system's releases. This skill applies Nathan Curtis' (EightShapes) testing- priorities framework from his 2023 Smashing Magazine design systems workshop — built from patterns observed across client design systems from 2015 through 2021 — to sequence testing investment to where the system actually is, not where it eventually needs to be.

Testing Priority Tiers