Testing HTML Light DOM Web Components: Easier Than Expected!
SMRTR summary
A development team modernizing a decades-old web application discovered that testing HTML Light DOM web components was surprisingly straightforward, often easier than testing framework-specific components like React or Vue. By using Light DOM instead of Shadow DOM, they could query elements directly without complex workarounds, making Testing Library queries work seamlessly. Their testing stack included Vitest, Lit's templating functions, DOM Testing Library, and accessibility tools, which enabled efficient development focused on new features rather than regression fixes.
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