Bug: Intermittent browser/extensions/doh-rollout/test/browser/browser_rollback.js | TRR mode changed when it shouldn't have! -
Status: RESOLVED
Priority: P5
Resolution: FIXED
Created: 2020-02-07 18:38:31+00:00
Resolved: 2020-02-17 06:11:31+00:00

**Filed by:** rmaries [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer.html#?job_id=287957193&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/fOrBDZDrQEeoF6Sj2S2bXg/runs/0/artifacts/public/logs/live_backing.log

---

[task 2020-02-07T18:07:09.268Z] 18:07:09     INFO - TEST-START | browser/extensions/doh-rollout/test/browser/browser_rollback.js
[task 2020-02-07T18:07:16.493Z] 18:07:16     INFO - TEST-INFO | started process screenshot
[task 2020-02-07T18:07:16.720Z] 18:07:16     INFO - TEST-INFO | screenshot: exit 0
[task 2020-02-07T18:07:16.721Z] 18:07:16     INFO - Buffered messages logged at 18:07:09
[task 2020-02-07T18:07:16.721Z] 18:07:16     INFO - Entering test bound setup
[task 2020-02-07T18:07:16.722Z] 18:07:16     INFO - Leaving test bound setup
[task 2020-02-07T18:07:16.722Z] 18:07:16     INFO - Entering test bound testRollback
[task 2020-02-07T18:07:16.723Z] 18:07:16     INFO - TEST-PASS | browser/extensions/doh-rollout/test/browser/browser_rollback.js | Breadcrumb saved. - 
[task 2020-02-07T18:07:16.723Z] 18:07:16     INFO - Buffered messages logged at 18:07:10
[task 2020-02-07T18:07:16.724Z] 18:07:16     INFO - TEST-PASS | browser/extensions/doh-rollout/test/browser/browser_rollback.js | Doorhanger shown pref undefined before user interaction. - 
[task 2020-02-07T18:07:16.724Z] 18:07:16     INFO - TEST-PASS | browser/extensions/doh-rollout/test/browser/browser_rollback.js | TRR mode is 2 - 
[task 2020-02-07T18:07:16.725Z] 18:07:16     INFO - TEST-PASS | browser/extensions/doh-rollout/test/browser/browser_rollback.js | Found the expected heuristics event. - 
[task 2020-02-07T18:07:16.725Z] 18:07:16     INFO - TEST-PASS | browser/extensions/doh-rollout/test/browser/browser_rollback.js | The event records the expected decision - 
[task 2020-02-07T18:07:16.725Z] 18:07:16     INFO - TEST-PASS | browser/extensions/doh-rollout/test/browser/browser_rollback.js | Got the expected reason. - 
[task 2020-02-07T18:07:16.726Z] 18:07:16     INFO - TEST-PASS | browser/extensions/doh-rollout/test/browser/browser_rollback.js | Doorhanger shown pref saved. - 
[task 2020-02-07T18:07:16.726Z] 18:07:16     INFO - TEST-PASS | browser/extensions/doh-rollout/test/browser/browser_rollback.js | Doorhanger decision saved. - 
[task 2020-02-07T18:07:16.727Z] 18:07:16     INFO - TEST-PASS | browser/extensions/doh-rollout/test/browser/browser_rollback.js | Breadcrumb not cleared. - 
[task 2020-02-07T18:07:16.727Z] 18:07:16     INFO - TEST-PASS | browser/extensions/doh-rollout/test/browser/browser_rollback.js | TRR mode is 0 - 
[task 2020-02-07T18:07:16.727Z] 18:07:16     INFO - TEST-PASS | browser/extensions/doh-rollout/test/browser/browser_rollback.js | Found the expected heuristics event. - 
[task 2020-02-07T18:07:16.727Z] 18:07:16     INFO - TEST-PASS | browser/extensions/doh-rollout/test/browser/browser_rollback.js | The event records the expected decision - 
[task 2020-02-07T18:07:16.728Z] 18:07:16     INFO - TEST-PASS | browser/extensions/doh-rollout/test/browser/browser_rollback.js | Got the expected reason. - 
[task 2020-02-07T18:07:16.728Z] 18:07:16     INFO - Buffered messages logged at 18:07:16
[task 2020-02-07T18:07:16.728Z] 18:07:16     INFO - TEST-PASS | browser/extensions/doh-rollout/test/browser/browser_rollback.js | No change in TRR mode - 
[task 2020-02-07T18:07:16.728Z] 18:07:16     INFO - TEST-PASS | browser/extensions/doh-rollout/test/browser/browser_rollback.js | Found the expected heuristics event. - 
[task 2020-02-07T18:07:16.728Z] 18:07:16     INFO - TEST-PASS | browser/extensions/doh-rollout/test/browser/browser_rollback.js | The event records the expected decision - 
[task 2020-02-07T18:07:16.728Z] 18:07:16     INFO - TEST-PASS | browser/extensions/doh-rollout/test/browser/browser_rollback.js | Got the expected reason. - 
[task 2020-02-07T18:07:16.728Z] 18:07:16     INFO - TEST-PASS | browser/extensions/doh-rollout/test/browser/browser_rollback.js | TRR mode is 0 - 
[task 2020-02-07T18:07:16.728Z] 18:07:16     INFO - TEST-PASS | browser/extensions/doh-rollout/test/browser/browser_rollback.js | Found no heuristics events. - 
[task 2020-02-07T18:07:16.728Z] 18:07:16     INFO - Buffered messages finished
[task 2020-02-07T18:07:16.729Z] 18:07:16     INFO - TEST-UNEXPECTED-FAIL | browser/extensions/doh-rollout/test/browser/browser_rollback.js | TRR mode changed when it shouldn't have! - 
[task 2020-02-07T18:07:16.729Z] 18:07:16     INFO - Stack trace:
[task 2020-02-07T18:07:16.729Z] 18:07:16     INFO - chrome://mochikit/content/browser-test.js:test_ok:1292
[task 2020-02-07T18:07:16.729Z] 18:07:16     INFO - chrome://mochitests/content/browser/browser/extensions/doh-rollout/test/browser/head.js:ensureNoTRRModeChange:190
[task 2020-02-07T18:07:16.729Z] 18:07:16     INFO - chrome://mochitests/content/browser/browser/extensions/doh-rollout/test/browser/browser_rollback.js:testRollback:73
[task 2020-02-07T18:07:16.729Z] 18:07:16     INFO - chrome://mochikit/content/browser-test.js:Tester_execTest/<:1062
[task 2020-02-07T18:07:16.729Z] 18:07:16     INFO - chrome://mochikit/content/browser-test.js:Tester_execTest:1097
[task 2020-02-07T18:07:16.729Z] 18:07:16     INFO - chrome://mochikit/content/browser-test.js:nextTest/<:925
[task 2020-02-07T18:07:16.729Z] 18:07:16     INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:SimpleTest.waitForFocus/waitForFocusInner/focusedOrLoaded/<:808
[task 2020-02-07T18:07:16.729Z] 18:07:16     INFO - Not taking screenshot here: see the one that was previously logged