1844129 - Add testing runnables which may 'hang' a thread or a process for some time or indefinitely.

Status: NEW

(Core :: XPCOM, enhancement, P3)

Description

[Olli Pettay [:smaug][[e-mail]]]

We have landed various changes to hopefully fix some shutdown (of workers, content processes, parent process) issues, but we have no good ways to test it all, and that would be very valuable especially to catch regressions.

Comment 1

[Artur Iunusov]

https://searchfox.org/mozilla-central/source/xpcom/threads/nsThreadUtils.h#376

Could be a good example:

https://searchfox.org/mozilla-central/source/dom/media/webrtc/transport/test/TestSyncRunnable.cpp#16

Comment 2

[Artur Iunusov]

https://searchfox.org/mozilla-central/source/dom/webidl/TestUtils.webidl#12
undefined dispatchSlowTask(unsigned long sleepTime);

https://searchfox.org/mozilla-central/source/dom/base/TestUtils.cpp

we could expose testing runnable in that way

Comment 3

[Artur Iunusov]

Attachment: WIP: Bug 1844129 - Added slow test Runnable

Comment 4

[Kagami Rosylight [:saschanaz] (they/them)]

(In reply to Artur Iunusov from comment #2)

https://searchfox.org/mozilla-central/source/dom/webidl/TestUtils.webidl#12
undefined dispatchSlowTask(unsigned long sleepTime);

https://searchfox.org/mozilla-central/source/dom/base/TestUtils.cpp

we could expose testing runnable in that way

Note that it has a spec for WPT purpose: https://testutils.spec.whatwg.org