909726 - SimpleTest for Workers

Status: RESOLVED WORKSFORME

(Core :: DOM: Workers, defect, P5)

Description

[David Teller [:Yoric] - still alive but not very active]

Now that we are starting to develop features and modules for workers, we need a simple testing mechanism for workers, preferably one with a feature set comparable to SimpleTest.

Comment 1

[:Ms2ger (he/him; ⌚ UTC+1/+2)]

Would be interesting to see if we could make testharness.js easy to use in workers

Comment 2

[James Graham [:jgraham]]

Yeah, we shouldn't be inventing new javascript test harnesses. If extensions to testharness.js to make it easier to use in workers are required we should add those.

Note also that web-platform-tests already has some worker tests [1]

[1] http://w3c-test.org/web-platform-tests/master/workers/

Comment 3

[Simon Pieters [:zcorpan]]

The worker tests I've written that use testharness are basically a bad way to write tests, since the harness doesn't have native support. I recall discussing this with jgraham for possible implementation strategies but don't remember the details.

Comment 4

[:Ms2ger (he/him; ⌚ UTC+1/+2)]

I started poking at this: https://github.com/Ms2ger/testharness.js/tree/worker-support

Comment 5

[Andrew Sutherland [:asuth] (he/him)]

The multi-global WPT mechanism I think now accomplishes most of what we'd want in worker contexts, and it's possible to use for Mozilla-only tests. And for many service-based affordances, I think testing would normally happen from the main thread with the use of workers being an implementation detail.