I've been doing a Svelte project for work, and therefore experimenting with it in my free time. I noticed that after generating a brand new project, using the Svelte instructions, the unit test command does not work.
I got so frustrated with this I opened up a bug report.
The error I see is something like this:
12:55:39 PM [vite] (ssr) Error when evaluating SSR module /@fs/C:/Projects/blog/svelte-test-2/node_modules/@sveltejs/kit/src/runtime/server/index.js: transport was disconnected, cannot call "fetchModule"
It turns out the issue goes away if I tell the tests to use the headless browser. Change the vite.config.ts to make this happen. Find code like this:
2 enabled: true,
3 provider: 'playwright',
4 instances: [{ browser: 'chromium' }]
5},
And change the instances section, to add the headless option:
2 enabled: true,
3 provider: 'playwright',
4 instances: [{ browser: 'chromium', headless: true }]
5},
That solved the problem for me. Although, sometimes I like to use the headful browser to debug unit tests, so this is not quite perfect. But, at least I can keep moving forward with my own experiments.
posted by Jeffry Houser in
vitest, Svelte, Professional
| 0 Comments
