As far as I can tell, the behavior of css/css-text/line-break/line-break-anywhere-008.html is correct, but the title and the assert meta are wrong, and probably copied-pasted over from a different test.
Could you fix this, or if I'm wrong, explain where I'm wrong?
Oh, the title is indeed wrong; the test isn't related to break-all, at all.
It should be something like "CSS Text Test: line-break: anywhere"
As a matter of fact, the line-break-anywhere-007.html test is affected by the same typo.
I'll send a PR to fix the error.
PR ready for review