Bug: Intermittent browser/components/newtab/test/browser/browser_aboutwelcome_multistage_mr.js | single tracking bug
Status: RESOLVED
Priority: P5
Resolution: FIXED
Created: 2023-05-03 17:50:12+00:00
Resolved: 2023-05-08 21:52:32+00:00

**Filed by:** imoraru [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=414518676&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/esOgy6VHRFiPSe1nAcbCMQ/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2023-05-03T17:07:55.176Z] 17:07:55     INFO - TEST-PASS | browser/components/newtab/test/browser/browser_aboutwelcome_multistage_mr.js | Found the <panel-list>. - {} == true - 
[task 2023-05-03T17:07:55.176Z] 17:07:55     INFO - Buffered messages finished
[task 2023-05-03T17:07:55.177Z] 17:07:55     INFO - TEST-UNEXPECTED-FAIL | browser/components/newtab/test/browser/browser_aboutwelcome_multistage_mr.js | Panel should be tightly anchored to the bottom of the button shadow node. - 277.76666259765625 == 0 - got 277.76666259765625, expected 0 (operator ==)
[task 2023-05-03T17:07:55.177Z] 17:07:55     INFO - Stack trace:
[task 2023-05-03T17:07:55.177Z] 17:07:55     INFO - @chrome://mochitests/content/browser/browser/components/newtab/test/browser/browser_aboutwelcome_multistage_mr.js:467:12
[task 2023-05-03T17:07:55.177Z] 17:07:55     INFO - async*execute@resource://specialpowers/SpecialPowersSandbox.sys.mjs:139:12
[task 2023-05-03T17:07:55.177Z] 17:07:55     INFO - _spawnTask@resource://specialpowers/SpecialPowersChild.sys.mjs:1648:15
[task 2023-05-03T17:07:55.177Z] 17:07:55     INFO - receiveMessage@resource://specialpowers/SpecialPowersChild.sys.mjs:261:21
[task 2023-05-03T17:07:55.177Z] 17:07:55     INFO - JSActor query*receiveMessage@resource://specialpowers/SpecialPowersParent.sys.mjs:1388:14
[task 2023-05-03T17:07:55.177Z] 17:07:55     INFO - JSActor query*spawn@resource://specialpowers/SpecialPowersChild.sys.mjs:1579:17
[task 2023-05-03T17:07:55.177Z] 17:07:55     INFO - test_aboutwelcome_embedded_migration@chrome://mochitests/content/browser/browser/components/newtab/test/browser/browser_aboutwelcome_multistage_mr.js:413:23
[task 2023-05-03T17:07:55.177Z] 17:07:55     INFO - async*handleTask@chrome://mochikit/content/browser-test.js:1133:26
[task 2023-05-03T17:07:55.177Z] 17:07:55     INFO - _runTaskBasedTest@chrome://mochikit/content/browser-test.js:1205:18
[task 2023-05-03T17:07:55.177Z] 17:07:55     INFO - async*Tester_execTest@chrome://mochikit/content/browser-test.js:1347:14
[task 2023-05-03T17:07:55.178Z] 17:07:55     INFO - nextTest/<@chrome://mochikit/content/browser-test.js:1122:14
[task 2023-05-03T17:07:55.178Z] 17:07:55     INFO - SimpleTest.waitForFocus/<@chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:1056:13
[task 2023-05-03T17:07:55.178Z] 17:07:55     INFO - GECKO(2105) | console.debug: AboutWelcomeParent:
[task 2023-05-03T17:07:55.178Z] 17:07:55     INFO - GECKO(2105) |   Terminate reason is welcome-tab-closed
[task 2023-05-03T17:07:55.178Z] 17:07:55     INFO - Leaving test bound test_aboutwelcome_embedded_migration
[task 2023-05-03T17:07:55.382Z] 17:07:55     INFO - GECKO(2105) | MEMORY STAT | vsize 8108MB | residentFast 437MB | heapAllocated 157MB
[task 2023-05-03T17:07:55.383Z] 17:07:55     INFO - TEST-OK | browser/components/newtab/test/browser/browser_aboutwelcome_multistage_mr.js | took 8430ms
[task 2023-05-03T17:07:55.392Z] 17:07:55     INFO - checking window state
[task 2023-05-03T17:07:55.398Z] 17:07:55     INFO - TEST-START | browser/components/newtab/test/browser/browser_aboutwelcome_multistage_video.js
```