1182545 - Make browser_bug666317.js reliable by being flexible about discard timing

Status: RESOLVED FIXED

(Core :: Graphics: ImageLib, defect)

Description

[Seth Fowler [:seth] [:s2h]]

Right now browser_bug666317.js expects an image discard notification to be sent within one event loop turn after sending a memory pressure event. Empirically, it sometimes takes a little longer, which causes intermittent failures in this test, especially after bug 1117607.

We can make this test more reliable by just waiting for the discard event, instead of spinning the event loop once and then checking synchronously.

This change may allow this test to finally be turned on for e10s, but I have not checked that yet. We can try it in a followup.

Comment 1

[Seth Fowler [:seth] [:s2h]]

Attachment: Make browser_bug666317.js wait for the discard event instead of expecting it at a precise time

Here's the patch. Hopefully this will finally make this test reliable.

Comment 2

[Seth Fowler [:seth] [:s2h]]

https://hg.mozilla.org/integration/mozilla-inbound/rev/07bcf36f5ab2

Comment 3

[Carsten Book [:Tomcat]]

https://hg.mozilla.org/mozilla-central/rev/07bcf36f5ab2