Bug: Intermittent browser/components/urlbar/tests/engagementTelemetry/browser/browser_glean_telemetry_impression_timing.js | single tracking bug
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2023-01-18 14:32:47+00:00
Resolved: 2024-01-24 12:01:43+00:00

**Filed by:** nerli [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=402762457&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/R0JnaYtfQwmuoq2CM5byag/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/R0JnaYtfQwmuoq2CM5byag/runs/0/artifacts/public/logs/live_backing.log&only_show_unexpected=1

---
```
[task 2023-01-18T12:47:04.769Z] 12:47:04     INFO - TEST-UNEXPECTED-FAIL | browser/components/urlbar/tests/engagementTelemetry/browser/browser_glean_telemetry_impression_timing.js | 1 == 0 - JS frame :: chrome://mochitests/content/browser/browser/components/urlbar/tests/engagementTelemetry/browser/head.js :: _assertGleanTelemetry :: line 57
[task 2023-01-18T12:47:04.769Z] 12:47:04     INFO - Stack trace:
[task 2023-01-18T12:47:04.769Z] 12:47:04     INFO - chrome://mochitests/content/browser/browser/components/urlbar/tests/engagementTelemetry/browser/head.js:_assertGleanTelemetry:57
[task 2023-01-18T12:47:04.769Z] 12:47:04     INFO - chrome://mochitests/content/browser/browser/components/urlbar/tests/engagementTelemetry/browser/head.js:assertImpressionTelemetry:52
[task 2023-01-18T12:47:04.769Z] 12:47:04     INFO - chrome://mochitests/content/browser/browser/components/urlbar/tests/engagementTelemetry/browser/browser_glean_telemetry_impression_timing.js:cancelImpressionTimerByEngagementEvent/<:36
[task 2023-01-18T12:47:04.770Z] 12:47:04     INFO - TEST-PASS | browser/components/urlbar/tests/engagementTelemetry/browser/browser_glean_telemetry_impression_timing.js | "urlbar" == "urlbar" - 
[task 2023-01-18T12:47:04.770Z] 12:47:04     INFO - TEST-PASS | browser/components/urlbar/tests/engagementTelemetry/browser/browser_glean_telemetry_impression_timing.js | "impression" == "impression" - 
[task 2023-01-18T12:47:04.770Z] 12:47:04     INFO - Not taking screenshot here: see the one that was previously logged
[task 2023-01-18T12:47:04.771Z] 12:47:04     INFO - TEST-UNEXPECTED-FAIL | browser/components/urlbar/tests/engagementTelemetry/browser/browser_glean_telemetry_impression_timing.js | Uncaught exception in test - at chrome://mochitests/content/browser/browser/components/urlbar/tests/engagementTelemetry/browser/head.js:65 - TypeError: can't convert undefined to object
[task 2023-01-18T12:47:04.771Z] 12:47:04     INFO - Stack trace:
[task 2023-01-18T12:47:04.771Z] 12:47:04     INFO - _assertGleanTelemetry@chrome://mochitests/content/browser/browser/components/urlbar/tests/engagementTelemetry/browser/head.js:65:30
[task 2023-01-18T12:47:04.771Z] 12:47:04     INFO - assertImpressionTelemetry@chrome://mochitests/content/browser/browser/components/urlbar/tests/engagementTelemetry/browser/head.js:52:24
[task 2023-01-18T12:47:04.771Z] 12:47:04     INFO - cancelImpressionTimerByEngagementEvent/<@chrome://mochitests/content/browser/browser/components/urlbar/tests/engagementTelemetry/browser/browser_glean_telemetry_impression_timing.js:36:32
[task 2023-01-18T12:47:04.771Z] 12:47:04     INFO - Leaving test bound cancelImpressionTimerByEngagementEvent
[task 2023-01-18T12:47:04.772Z] 12:47:04     INFO - Entering test bound cancelInpressionTimerByType
```