URL spec test coverage report

[domenic]

FYI @annevk @Sebmaster @jasnell.

I managed to cobble this together:

• URL state machine coverage report: ~99%
• URL object coverage report: ~94%

Areas of lacking coverage are:

• some origin serialization stuff (some purposefully untested)
• The href setter
• One early-return case in the hash setter
• One "else" branch in IPv4 parsing

[annevk]

Oh sweet, can you generate new reports? Would love to add more tests, in particular now with Safari actively implementing.

[domenic]

Yeah, it's just npm run coverage from within the whatwg-url project. I've generated a new report at the same URL and updated the OP. Coverage went from 90 -> 95 and 85 -> 94 for those two files.

[jasnell]

Very nice.

[domenic]

Updated the OP after #4882. Very nice.

[annevk]

Can we also get coverage on IDNA, which is just a single method in this library?

[GPHemsley]

@domenic The links here are dead. Is this something that we're still looking to have? (I'm guessing yes.) Does this issue serve that purpose?

[domenic]

I think we got to 100% coverage at some point. I'm no longer actively tracking this, but you can checkout jsdom/whatwg-url, run npm install, then npm run coverage to get a report. I'll close this now since this issue isn't too helpful.