Bug: Intermittent TV browser/base/content/test/performance/browser_tabopen.js | unexpected changed rect: ({x1:226, x2:1046, y1:38, y2:67, w:821, h:30}), window width: 1280 -
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2020-04-11 15:35:53+00:00
Resolved: 2020-05-05 17:06:44+00:00

**Filed by:** opoprus [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer.html#?job_id=297243759&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/Z2fuHi82QTezkLXP4rAFJQ/runs/0/artifacts/public/logs/live_backing.log
**Reftest URL:** https://hg.mozilla.org/mozilla-central/raw-file/tip/layout/tools/reftest/reftest-analyzer.xhtml#logurl=https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/Z2fuHi82QTezkLXP4rAFJQ/runs/0/artifacts/public/logs/live_backing.log&only_show_unexpected=1

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[task 2020-04-11T14:45:30.089Z] 14:45:30     INFO - *** Start BrowserChrome Test Results ***
[task 2020-04-11T14:45:30.153Z] 14:45:30     INFO - checking window state
[task 2020-04-11T14:45:30.174Z] 14:45:30     INFO - TEST-START | browser/base/content/test/performance/browser_tabopen.js
[task 2020-04-11T14:45:30.941Z] 14:45:30     INFO - TEST-INFO | started process screentopng
[task 2020-04-11T14:45:31.604Z] 14:45:31     INFO - TEST-INFO | screentopng: exit 0
[task 2020-04-11T14:45:31.605Z] 14:45:31     INFO - Buffered messages logged at 14:45:30
[task 2020-04-11T14:45:31.605Z] 14:45:31     INFO - Entering test bound 
[task 2020-04-11T14:45:31.606Z] 14:45:31     INFO - TEST-PASS | browser/base/content/test/performance/browser_tabopen.js | 0 unexpected reflows - true == true - 
[task 2020-04-11T14:45:31.606Z] 14:45:31     INFO - comparing 4 frames
[task 2020-04-11T14:45:31.606Z] 14:45:31     INFO - TEST-FAIL | browser/base/content/test/performance/browser_tabopen.js | bug 1446452 - the new tab should appear at the same time as the previous one gets deselected, ({x1:0, x2:223, y1:0, y2:32, w:224, h:33}), window width: 1280 - 
[task 2020-04-11T14:45:31.606Z] 14:45:31     INFO - Buffered messages finished
[task 2020-04-11T14:45:31.607Z] 14:45:31     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/performance/browser_tabopen.js | unexpected changed rect: ({x1:226, x2:1046, y1:38, y2:67, w:821, h:30}), window width: 1280 - 
[task 2020-04-11T14:45:31.607Z] 14:45:31     INFO - Stack trace:
[task 2020-04-11T14:45:31.608Z] 14:45:31     INFO - chrome://mochikit/content/browser-test.js:test_ok:1292
[task 2020-04-11T14:45:31.608Z] 14:45:31     INFO - chrome://mochitests/content/browser/browser/base/content/test/performance/head.js:reportUnexpectedFlicker/rects<:611
[task 2020-04-11T14:45:31.608Z] 14:45:31     INFO - chrome://mochitests/content/browser/browser/base/content/test/performance/head.js:reportUnexpectedFlicker:602
[task 2020-04-11T14:45:31.608Z] 14:45:31     INFO - chrome://mochitests/content/browser/browser/base/content/test/performance/head.js:withPerfObserver:671
[task 2020-04-11T14:45:31.609Z] 14:45:31     INFO - chrome://mochitests/content/browser/browser/base/content/test/performance/browser_tabopen.js:null:43
[task 2020-04-11T14:45:31.609Z] 14:45:31     INFO - chrome://mochikit/content/browser-test.js:Tester_execTest/<:1062
[task 2020-04-11T14:45:31.609Z] 14:45:31     INFO - chrome://mochikit/content/browser-test.js:Tester_execTest:1097
[task 2020-04-11T14:45:31.610Z] 14:45:31     INFO - chrome://mochikit/content/browser-test.js:nextTest/<:925
[task 2020-04-11T14:45:31.610Z] 14:45:31     INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:SimpleTest.waitForFocus/waitForFocusInner/focusedOrLoaded/<:918