Provide a better error message when Chromium isn't installed

[inancgumus]

What?

Provide a new error message telling users to install Chromium to run browser tests on their system.

Why?

When users don't provide an executable path, or we can't find one, we say: "exec: no command", which can confuse most users (including me!). For instance, the following error says: "no command at browserFunction", which is hard to guess what's happening.

error building browser on IterStart: launching browser: exec: no command at browserFunction (file:///github/workspace/test.js:28:7(0))

Instead, we can say:

error building browser on IterStart: launching browser: chromium is not installed on this system at browserFunction (file:///github/workspace/test.js:28:7(0))

Tasks

Tasks

Beta Give feedback

1. Provide a better error message when Chromium isn't found #1137
   ux +1
   
2. Reupdate chrome not installed errs #1145
   +0
   
3. Browser: Update release notes for chrome not installed errors k6#3516
   +0
   
4. Fix browser not found err in TestBrowserPermissions k6#3538
   area: browser tests +2
   

Related PR(s)/Issue(s)

https://community.grafana.com/t/k6-browser-github-action-error-building-browser-no-command/109937