Fix issues compiling code for tests

[christian-bromann]

Some gotchas:

• since the code base is run in CJS we have to add vite-plugin-commonjs to transform project code into ESM
• the current approach of skipping tests if certain primitives aren't available doesn't work with WebdriverIO as it has to run at least one single test, I raised an issue [🐛 Bug]: browser runner stales if no it block is found webdriverio/webdriverio#11466 to fix that
• the stack trace test fails since there is no trace, not sure if it is a WDIO issue or if the trace gets cleared somewhere else
• your original error you posted is caused by split2 which is a WDIO dependency and should get transformed to ESM properly, however it fails doing so here, I will investigate this - the workaround now is to fetch an ESM version from a CDN

[fatso83]

Wow, that was a quick turnaround for a quite complicated issue! All good, except for some tests now complaining TypeError: utilPromisify is not a function. I'll have a look later.

[christian-bromann]

@fatso83 I pushed a fix for that. Let me know if there is anything else I can do. Would love to see the SinonJS community doing browser tests in WebdriverIO 😉

[fatso83]

I got this working fine locally, also with headless chrome, so that's promising. Also ran firefox and safari tests.

I just need to figure out why the Sauce Labs tests are not working:

[0-0] 2023-10-20T09:28:50.364Z ERROR webdriver: Request failed with status 500 due to unknown error: unknown error: net::ERR_CONNECTION_REFUSED
[0-0]   (Session info: chrome=118.0.5993.71)
[0-0] 2023-10-20T09:28:50.365Z ERROR @wdio/runner: Failed to run browser tests with cid 0-0: unknown error: Failed to load test page to run tests, make sure your browser can access "http://localhost:55740/"
...
[0-0]  Error:  Failed to load test page to run tests, make sure your browser can access "http://localhost:55740/"

Quite weird, but I hope SL support figures out.

[christian-bromann]

Yes, there is an issue somewhere logged for the SL case. It was working when I initially released it but regressed since then and I haven't had a chance to look into it. What happens here is that WebdriverIO can't set up a socket connection with the browser in the cloud even with Sauce Connect enabled. Let me take a look again on this.