test_eme_persistent_sessions.html was only designed to handle one session at a time. Some failures (e.g. bug 1148844) may be related to this. Possible solutions: 1. Only use test cases with 1 session. 2. Modify code to handle multiple sessions.
Can you elaborate the problem? I think we should support multiple sessions in the real use case and our test case should also reflect the truth.
The test was originally written at a time when there were only single-stream test cases, and it has some top-level variables meant to be used by 'the' session handler. So when two sessions are created (as is the case in multi-stream videos since bug 1144409) the same variables are used by both session handlers, with some unexpected results that do not necessarily point to real code issues. I agree that handling multiple sessions is expected, and will try to patch the test that way. But in the worst case (too hard?), I'll fall back to option 1 for now and create a separate bug to later handle multi-stream tests.
eme.js:SetupEME() itself does not handle multiple sessions well, so this bug here will just disable multi-session test cases for now. After bug 1142379 lands with real multi-stream tests, bug 1152170 will add full support for multi-stream tests in test_eme_persistent_sessions.
Created attachment 8589526 [details] [diff] [review] 1152153-eme-persistent-test-single-sessions-only.patch Only use test cases that generate 1 session.
Attachment #8589526 - Flags: review?(edwin)
Attachment #8589526 - Flags: review?(edwin) → review+
Backed out for test_eme_persistent_sessions.html timeouts on multiple platforms. https://hg.mozilla.org/integration/mozilla-inbound/rev/82fc1964041c https://treeherder.mozilla.org/logviewer.html#?job_id=8683992&repo=mozilla-inbound
Trying with patch from bug 1154133: https://treeherder.mozilla.org/#/jobs?repo=try&revision=19326a3604ff
Created attachment 8592554 [details] [diff] [review] 1152153-eme-persistent-test-single-sessions-only.patch Rebase, no actual changes, carrying r+.
Status: NEW → RESOLVED
Last Resolved: 4 years ago
status-firefox40: --- → fixed
Resolution: --- → FIXED
Target Milestone: --- → mozilla40
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