Testing Service Worker
There are quite a few test libraries, vite-plugin-pwa uses Vitest for build testing and Playwright for in-browser testing (with the Chromium browser only).
You can check any framework example in the examples folder in the repo and Running tests in the contributing guide.
vite-plugin-pwa and @vite-pwa/nuxt have been added to the Vite ecosystem-ci and Nuxt ecosystem-ci respectively to detect possible regressions in new Vite/Nuxt versions:
We're also working to include @vite-pwa/sveltekit in the Svelte ecosystem-ci.
Testing build
Check vitest.config.mts in the root folder and the test folder in each example.
You have a test script in each example package.json file to run build and in-browser tests.
Testing in-browser
Check playwright.config.ts in the root folder and the client-test folder in each example.
You have a test script in each example package.json file to run build and in-browser tests.
In this case, we also need to start a server to run the tests, check webServer in playwright.config.ts.