1763407 - browser_sendFormat hangs after completion on mac osx

Status: NEW

(Thunderbird :: Message Compose Window, defect)

Description

[Henry Wilkes (they/them) [:henry-x]]

The browser_sendFormat tests added in bug 1727493 fail on the try server for the osx build.

E.g. https://treeherder.mozilla.org/jobs?repo=try-comm-central&revision=e85d3ee2b45773888718a251ef9a404c4fc8fa65&selectedTaskRun=WucTjA9IS8KErcdo5jaikg.0

The strange thing is that all the add_task methods complete and so does the registerCleanupFunction method, and the test is reported as TEST-OK, but then the process seems to hang. The output is

12:21:59     INFO - TEST-START | comm/mail/test/browser/composition/browser_sendFormat.js
...
12:22:27     INFO - TEST-SKIP | comm/mail/test/browser/composition/browser_sendFormat.js | bound test_setting_send_format 
12:22:27  WARNING - Skipping test bound test_setting_send_format
12:22:27     INFO - TEST-SKIP | comm/mail/test/browser/composition/browser_sendFormat.js | bound test_saving_draft_with_set_format 
12:22:27  WARNING - Skipping test bound test_saving_draft_with_set_format
...
12:22:47     INFO - TEST-OK | comm/mail/test/browser/composition/browser_sendFormat.js | took 47693ms
12:22:47     INFO - checking window state
12:22:47     INFO - GECKO(1496) | must wait for focus
12:28:57     INFO - Buffered messages finished
12:28:57    ERROR - TEST-UNEXPECTED-TIMEOUT | comm/mail/test/browser/composition/browser_sendFormat.js (finished) | application timed out after 370 seconds with no output
12:28:57    ERROR - Force-terminating active process(es).

I don't have an osx machine myself, so I can't do a proper debug.