How to write end-to-end tests using createRouterAct and LinkAccordion. Use when writing or modifying tests that need to control the timing of internal Next.js requests (like prefetches) or assert on their responses. Covers the act API, fixture patterns, prefetch control via LinkAccordion, fake clocks, and avoiding flaky testing patterns.
How to install router-act?
vercel/next.js/router-act
$npx -y skills add vercel/next.js --skill router-actInstalls into the current project.
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Run `npx skills use "https://github.com/vercel/next.js" --skill "vercel/next.js/router-act"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/vercel/next.js" that are relevant to the current task. Run `npx skills add "https://github.com/vercel/next.js"` and select the relevant skills, then follow their instructions.
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