Bug: Intermittent browser/components/preferences/tests/browser_experimental_features_filter.js | single tracking bug
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2023-12-09 14:07:46+00:00
Resolved: 2024-04-05 12:02:30+00:00

**Filed by:** ctuns [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=439502534&repo=try
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/ZDxErASgQjCzQcALfGBCKw/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2023-12-09T13:24:06.076Z] 13:24:06     INFO - TEST-PASS | browser/components/preferences/tests/browser_experimental_features_filter.js | Element should not be null, when checking visibility - 
[task 2023-12-09T13:24:06.077Z] 13:24:06     INFO - Buffered messages finished
[task 2023-12-09T13:24:06.078Z] 13:24:06     INFO - TEST-UNEXPECTED-FAIL | browser/components/preferences/tests/browser_experimental_features_filter.js | test-featureA should be hidden after category change to category-search - 
[task 2023-12-09T13:24:06.078Z] 13:24:06     INFO - Stack trace:
[task 2023-12-09T13:24:06.078Z] 13:24:06     INFO - chrome://mochikit/content/browser-test.js:test_ok:1591
[task 2023-12-09T13:24:06.078Z] 13:24:06     INFO - chrome://mochitests/content/browser/browser/components/preferences/tests/head.js:is_element_hidden:17
[task 2023-12-09T13:24:06.078Z] 13:24:06     INFO - chrome://mochitests/content/browser/browser/components/preferences/tests/browser_experimental_features_filter.js:checkVisibility:177
[task 2023-12-09T13:24:06.078Z] 13:24:06     INFO - chrome://mochitests/content/browser/browser/components/preferences/tests/browser_experimental_features_filter.js:testFilterFeatures:161
[task 2023-12-09T13:24:06.078Z] 13:24:06     INFO - chrome://mochikit/content/browser-test.js:handleTask:1138
[task 2023-12-09T13:24:06.078Z] 13:24:06     INFO - chrome://mochikit/content/browser-test.js:_runTaskBasedTest:1210
[task 2023-12-09T13:24:06.078Z] 13:24:06     INFO - chrome://mochikit/content/browser-test.js:Tester_execTest:1352
[task 2023-12-09T13:24:06.078Z] 13:24:06     INFO - chrome://mochikit/content/browser-test.js:nextTest/<:1127
[task 2023-12-09T13:24:06.079Z] 13:24:06     INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:SimpleTest.waitForFocus/<:1058
[task 2023-12-09T13:24:06.079Z] 13:24:06     INFO - TEST-PASS | browser/components/preferences/tests/browser_experimental_features_filter.js | Element should not be null, when checking visibility - 
[task 2023-12-09T13:24:06.079Z] 13:24:06     INFO - Not taking screenshot here: see the one that was previously logged
[task 2023-12-09T13:24:06.081Z] 13:24:06     INFO - TEST-UNEXPECTED-FAIL | browser/components/preferences/tests/browser_experimental_features_filter.js | test-featureB should be hidden after category change to category-search - 
[task 2023-12-09T13:24:06.081Z] 13:24:06     INFO - Stack trace:
[task 2023-12-09T13:24:06.081Z] 13:24:06     INFO - chrome://mochikit/content/browser-test.js:test_ok:1591
[task 2023-12-09T13:24:06.081Z] 13:24:06     INFO - chrome://mochitests/content/browser/browser/components/preferences/tests/head.js:is_element_hidden:17
[task 2023-12-09T13:24:06.081Z] 13:24:06     INFO - chrome://mochitests/content/browser/browser/components/preferences/tests/browser_experimental_features_filter.js:checkVisibility:177
[task 2023-12-09T13:24:06.081Z] 13:24:06     INFO - chrome://mochitests/content/browser/browser/components/preferences/tests/browser_experimental_features_filter.js:testFilterFeatures:161
[task 2023-12-09T13:24:06.081Z] 13:24:06     INFO - chrome://mochikit/content/browser-test.js:handleTask:1138
[task 2023-12-09T13:24:06.081Z] 13:24:06     INFO - chrome://mochikit/content/browser-test.js:_runTaskBasedTest:1210
[task 2023-12-09T13:24:06.081Z] 13:24:06     INFO - chrome://mochikit/content/browser-test.js:Tester_execTest:1352
[task 2023-12-09T13:24:06.081Z] 13:24:06     INFO - chrome://mochikit/content/browser-test.js:nextTest/<:1127
[task 2023-12-09T13:24:06.081Z] 13:24:06     INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:SimpleTest.waitForFocus/<:1058
[task 2023-12-09T13:24:06.082Z] 13:24:06     INFO - TEST-PASS | browser/components/preferences/tests/browser_experimental_features_filter.js | Element should not be null, when checking visibility - 
[task 2023-12-09T13:24:06.082Z] 13:24:06     INFO - Not taking screenshot here: see the one that was previously logged
[task 2023-12-09T13:24:06.083Z] 13:24:06     INFO - TEST-UNEXPECTED-FAIL | browser/components/preferences/tests/browser_experimental_features_filter.js | test-featureC should be hidden after category change to category-search - 
[task 2023-12-09T13:24:06.083Z] 13:24:06     INFO - Stack trace:
[task 2023-12-09T13:24:06.083Z] 13:24:06     INFO - chrome://mochikit/content/browser-test.js:test_ok:1591
[task 2023-12-09T13:24:06.083Z] 13:24:06     INFO - chrome://mochitests/content/browser/browser/components/preferences/tests/head.js:is_element_hidden:17
[task 2023-12-09T13:24:06.083Z] 13:24:06     INFO - chrome://mochitests/content/browser/browser/components/preferences/tests/browser_experimental_features_filter.js:checkVisibility:177
[task 2023-12-09T13:24:06.083Z] 13:24:06     INFO - chrome://mochitests/content/browser/browser/components/preferences/tests/browser_experimental_features_filter.js:testFilterFeatures:161
[task 2023-12-09T13:24:06.083Z] 13:24:06     INFO - chrome://mochikit/content/browser-test.js:handleTask:1138
[task 2023-12-09T13:24:06.083Z] 13:24:06     INFO - chrome://mochikit/content/browser-test.js:_runTaskBasedTest:1210
[task 2023-12-09T13:24:06.084Z] 13:24:06     INFO - chrome://mochikit/content/browser-test.js:Tester_execTest:1352
[task 2023-12-09T13:24:06.084Z] 13:24:06     INFO - chrome://mochikit/content/browser-test.js:nextTest/<:1127
[task 2023-12-09T13:24:06.084Z] 13:24:06     INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:SimpleTest.waitForFocus/<:1058
[task 2023-12-09T13:24:06.084Z] 13:24:06     INFO - TEST-PASS | browser/components/preferences/tests/browser_experimental_features_filter.js | Element should not be null, when checking visibility - 
[task 2023-12-09T13:24:06.084Z] 13:24:06     INFO - Not taking screenshot here: see the one that was previously logged
[task 2023-12-09T13:24:06.086Z] 13:24:06     INFO - TEST-UNEXPECTED-FAIL | browser/components/preferences/tests/browser_experimental_features_filter.js | test-featureD should be hidden after category change to category-search - 
[task 2023-12-09T13:24:06.086Z] 13:24:06     INFO - Stack trace:
[task 2023-12-09T13:24:06.086Z] 13:24:06     INFO - chrome://mochikit/content/browser-test.js:test_ok:1591
[task 2023-12-09T13:24:06.086Z] 13:24:06     INFO - chrome://mochitests/content/browser/browser/components/preferences/tests/head.js:is_element_hidden:17
[task 2023-12-09T13:24:06.086Z] 13:24:06     INFO - chrome://mochitests/content/browser/browser/components/preferences/tests/browser_experimental_features_filter.js:checkVisibility:177
[task 2023-12-09T13:24:06.086Z] 13:24:06     INFO - chrome://mochitests/content/browser/browser/components/preferences/tests/browser_experimental_features_filter.js:testFilterFeatures:161
[task 2023-12-09T13:24:06.086Z] 13:24:06     INFO - chrome://mochikit/content/browser-test.js:handleTask:1138
[task 2023-12-09T13:24:06.086Z] 13:24:06     INFO - chrome://mochikit/content/browser-test.js:_runTaskBasedTest:1210
[task 2023-12-09T13:24:06.086Z] 13:24:06     INFO - chrome://mochikit/content/browser-test.js:Tester_execTest:1352
[task 2023-12-09T13:24:06.086Z] 13:24:06     INFO - chrome://mochikit/content/browser-test.js:nextTest/<:1127
[task 2023-12-09T13:24:06.086Z] 13:24:06     INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:SimpleTest.waitForFocus/<:1058
[task 2023-12-09T13:24:06.136Z] 13:24:06     INFO - TEST-PASS | browser/components/preferences/tests/browser_experimental_features_filter.js | Element should not be null, when checking visibility - 
```