Bug: Intermittent browser/components/extensions/test/browser/browser_ext_tabs_remove.js | SessionStore of second window should know that multiple tabs were closed - Got +0, expected 2
Status: RESOLVED
Priority: P5
Resolution: FIXED
Created: 2020-12-14 18:48:38+00:00
Resolved: 2021-07-12 06:14:43+00:00

**Filed by:** cbrindusan [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=324466847&repo=mozilla-central
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/F6z_kWF1QpSed80xIOkHvA/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2020-12-14T17:28:12.898Z] 17:28:12     INFO - TEST-START | browser/components/extensions/test/browser/browser_ext_tabs_remove.js
[task 2020-12-14T17:28:15.024Z] 17:28:15     INFO - TEST-INFO | started process screentopng
[task 2020-12-14T17:28:15.442Z] 17:28:15     INFO - TEST-INFO | screentopng: exit 0
[task 2020-12-14T17:28:15.442Z] 17:28:15     INFO - Buffered messages logged at 17:28:12
[task 2020-12-14T17:28:15.442Z] 17:28:15     INFO - Entering test bound undoCloseAfterExtRemovesOneTab
[task 2020-12-14T17:28:15.443Z] 17:28:15     INFO - Extension loaded
[task 2020-12-14T17:28:15.443Z] 17:28:15     INFO - Console message: Warning: attempting to write 35170 bytes to preference extensions.webextensions.uuids. This is bad for general performance and memory usage. Such an amount of data should rather be written to an external file. This preference will not be sent to any content processes.
[task 2020-12-14T17:28:15.443Z] 17:28:15     INFO - Buffered messages logged at 17:28:13
[task 2020-12-14T17:28:15.443Z] 17:28:15     INFO - TEST-PASS | browser/components/extensions/test/browser/browser_ext_tabs_remove.js | Should have 3 tabs - Expected: 3, Actual: 3 - 
[task 2020-12-14T17:28:15.443Z] 17:28:15     INFO - TEST-PASS | browser/components/extensions/test/browser/browser_ext_tabs_remove.js | Once extension has closed a tab, there should be 2 tabs open - 
[task 2020-12-14T17:28:15.443Z] 17:28:15     INFO - TEST-PASS | browser/components/extensions/test/browser/browser_ext_tabs_remove.js | SessionStore should know that one tab was closed - 
[task 2020-12-14T17:28:15.443Z] 17:28:15     INFO - TEST-PASS | browser/components/extensions/test/browser/browser_ext_tabs_remove.js | All tabs should be restored for a total of 3 tabs - 
[task 2020-12-14T17:28:15.443Z] 17:28:15     INFO - TEST-PASS | browser/components/extensions/test/browser/browser_ext_tabs_remove.js | Restored tab at index 2 should have expected URL - 
[task 2020-12-14T17:28:15.443Z] 17:28:15     INFO - Leaving test bound undoCloseAfterExtRemovesOneTab
[task 2020-12-14T17:28:15.443Z] 17:28:15     INFO - Entering test bound undoCloseAfterExtRemovesMultipleTabs
[task 2020-12-14T17:28:15.443Z] 17:28:15     INFO - Extension loaded
[task 2020-12-14T17:28:15.443Z] 17:28:15     INFO - Console message: Warning: attempting to write 35250 bytes to preference extensions.webextensions.uuids. This is bad for general performance and memory usage. Such an amount of data should rather be written to an external file. This preference will not be sent to any content processes.
[task 2020-12-14T17:28:15.443Z] 17:28:15     INFO - Buffered messages logged at 17:28:14
[task 2020-12-14T17:28:15.443Z] 17:28:15     INFO - TEST-PASS | browser/components/extensions/test/browser/browser_ext_tabs_remove.js | Should have 8 total tabs (4 in each window: the initial blank tab and the 3 opened by this test) - Expected: 8, Actual: 8 - 
[task 2020-12-14T17:28:15.443Z] 17:28:15     INFO - Buffered messages logged at 17:28:15
[task 2020-12-14T17:28:15.443Z] 17:28:15     INFO - TEST-PASS | browser/components/extensions/test/browser/browser_ext_tabs_remove.js | Original window should have 2 tabs still open, after closing tabs - 
[task 2020-12-14T17:28:15.443Z] 17:28:15     INFO - TEST-PASS | browser/components/extensions/test/browser/browser_ext_tabs_remove.js | Second window should have 2 tabs still open, after closing tabs - 
[task 2020-12-14T17:28:15.443Z] 17:28:15     INFO - TEST-PASS | browser/components/extensions/test/browser/browser_ext_tabs_remove.js | SessionStore of original window should know that multiple tabs were closed - 
[task 2020-12-14T17:28:15.443Z] 17:28:15     INFO - Buffered messages finished
[task 2020-12-14T17:28:15.453Z] 17:28:15     INFO - TEST-UNEXPECTED-FAIL | browser/components/extensions/test/browser/browser_ext_tabs_remove.js | SessionStore of second window should know that multiple tabs were closed - Got +0, expected 2```