Bug: Intermittent browser/components/sessionstore/test/browser_remoteness_flip_on_restore.js | A promise chain failed to handle a rejection: can't access property "getAttribute", tab is undefined - stack: crashFrame@resource://testing-common/BrowserTestUtils.
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2020-04-22 08:28:43+00:00
Resolved: 2021-08-10 17:03:02+00:00

**Filed by:** ccoroiu [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer.html#?job_id=298779722&repo=mozilla-central
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/UpGC9XEgQuKHjv8ude0FkQ/runs/0/artifacts/public/logs/live_backing.log

---

task 2020-04-22T07:11:13.811Z] 07:11:13     INFO - TEST-PASS | browser/components/sessionstore/test/browser_remoteness_flip_on_restore.js | Should have gotten the expected remoteness for the tab at index 2 - true == true - 
[task 2020-04-22T07:11:13.811Z] 07:11:13     INFO - Buffered messages finished
[task 2020-04-22T07:11:13.811Z] 07:11:13     INFO - TEST-UNEXPECTED-FAIL | browser/components/sessionstore/test/browser_remoteness_flip_on_restore.js | A promise chain failed to handle a rejection: can't access property "getAttribute", tab is undefined - stack: crashFrame@resource://testing-common/BrowserTestUtils.jsm:1789:11
[task 2020-04-22T07:11:13.811Z] 07:11:13     INFO - async*test_pinned_tab_dataloss@chrome://mochitests/content/browser/browser/components/sessionstore/test/browser_pinned_tabs.js:332:20
[task 2020-04-22T07:11:13.811Z] 07:11:13     INFO - Async*Tester_execTest/<@chrome://mochikit/content/browser-test.js:1039:34
[task 2020-04-22T07:11:13.811Z] 07:11:13     INFO - async*Tester_execTest@chrome://mochikit/content/browser-test.js:1074:11
[task 2020-04-22T07:11:13.811Z] 07:11:13     INFO - nextTest/<@chrome://mochikit/content/browser-test.js:904:14
[task 2020-04-22T07:11:13.811Z] 07:11:13     INFO - SimpleTest.waitForFocus/waitForFocusInner/focusedOrLoaded/<@chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:918:23
[task 2020-04-22T07:11:13.811Z] 07:11:13     INFO - Rejection date: Wed Apr 22 2020 07:11:05 GMT+0000 (Greenwich Mean Time) - false == true - JS frame :: resource://testing-common/PromiseTestUtils.jsm :: assertNoUncaughtRejections :: line 265
[task 2020-04-22T07:11:13.811Z] 07:11:13     INFO - Stack trace:
[task 2020-04-22T07:11:13.811Z] 07:11:13     INFO - resource://testing-common/PromiseTestUtils.jsm:assertNoUncaughtRejections:265
[task 2020-04-22T07:11:13.811Z] 07:11:13     INFO - chrome://mochikit/content/browser-test.js:Tester_execTest/<:1070
[task 2020-04-22T07:11:13.812Z] 07:11:13     INFO - chrome://mochikit/content/browser-test.js:Tester_execTest:1074
[task 2020-04-22T07:11:13.812Z] 07:11:13     INFO - chrome://mochikit/content/browser-test.js:nextTest/<:904
[task 2020-04-22T07:11:13.812Z] 07:11:13     INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:SimpleTest.waitForFocus/waitForFocusInner/focusedOrLoaded/<:918
[task 2020-04-22T07:11:13.812Z] 07:11:13     INFO - Leaving test bound 
[task 2020-04-22T07:11:13.812Z] 07:11:13     INFO - GECKO(6604) | MEMORY STAT | vsize 2105336MB | vsizeMaxContiguous 65027308MB | residentFast 644MB | heapAllocated 192MB