[css-fonts] Add tests for standard font families

[litherum]

w3c/csswg-drafts@e083fe6

[svgeesus]

Apart from the specific issues with notref tests, these look good to me.

[foolip]

Ah, so the reason Taskcluster isn't running is probably because the branch is old and needs to be rebased. See web-platform-tests/wpt-pr-bot#81 for tooling that might make this easier.

[foolip]

I've rebased the branch now, just need to wait for all checks to pass. @litherum feel free to merge yourself when the button is green :)

[foolip]

Results are in now: https://wpt.fyi/results/css/css-fonts?label=pr_head&max-count=1&pr=19917

@litherum the status seems to be the same for all browsers, is that what you expected?

wpt-chrome-dev-stability is failing on Taskcluster like this:

Slow tests

Test	Result	Longest duration (ms)	Timeout (ms)
/css/css-fonts/standard-font-family-7.html	PASS	12290	10000

I don't know why that test would be slow, it doesn't do anything async even. @zcorpan FYI that the slow test check can give mysterious results.

I'll admin merge this (to override failing Taskcluster) once @litherum can confirm the results are as expected.

[litherum]

@litherum the status seems to be the same for all browsers, is that what you expected?

Yes. My implementation hasn't made it into Safari Technology Preview yet.

[foolip]

Admin merging now, thanks for confirming @litherum!