1632641 - Intermittent very frequent browser/components/extensions/test/browser/browser_ext_tabs_zoom.js | Got expected zoom event tab ID - Expected: "x", Actual: "y"-

Status: RESOLVED FIXED

(WebExtensions :: Untriaged, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: opoprus [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=299059693&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/fsw_nJ7ZRtuVXtSWee70Yg/runs/0/artifacts/public/logs/live_backing.log

---

TEST-START | browser/components/extensions/test/browser/browser_ext_tabs_zoom.js

[task 2020-04-23T17:52:56.698Z] 17:52:56 INFO - TEST-PASS | browser/components/extensions/test/browser/browser_ext_tabs_zoom.js | Got expected zoom value from parent - Expected: 1, Actual: 1 -
[task 2020-04-23T17:52:56.699Z] 17:52:56 INFO - Buffered messages finished
[task 2020-04-23T17:52:56.705Z] 17:52:56 INFO - TEST-UNEXPECTED-FAIL | browser/components/extensions/test/browser/browser_ext_tabs_zoom.js | Got expected zoom event tab ID - Expected: 702, Actual: 703 -
[task 2020-04-23T17:52:56.706Z] 17:52:56 INFO - Stack trace:
[task 2020-04-23T17:52:56.706Z] 17:52:56 INFO - chrome://mochikit/content/browser-test.js:test_ok:1269
[task 2020-04-23T17:52:56.707Z] 17:52:56 INFO - chrome://mochikit/content/tests/SimpleTest/ExtensionTestUtils.js:testHandler:68
[task 2020-04-23T17:52:56.707Z] 17:52:56 INFO - chrome://mochikit/content/tests/SimpleTest/ExtensionTestUtils.js:testResult:82
[task 2020-04-23T17:52:56.708Z] 17:52:56 INFO - resource://specialpowers/SpecialPowersChild.jsm:listener:2075
[task 2020-04-23T17:52:56.709Z] 17:52:56 INFO - resource://specialpowers/SpecialPowersChild.jsm:loadExtension/<:2017
[task 2020-04-23T17:52:56.709Z] 17:52:56 INFO - resource://specialpowers/SpecialPowersChild.jsm:receiveMessage:238
[task 2020-04-23T17:52:56.710Z] 17:52:56 INFO - JSWindowActor queryresource://specialpowers/SpecialPowersParent.jsm:resultListener:982
[task 2020-04-23T17:52:56.710Z] 17:52:56 INFO - resource://gre/modules/ExtensionCommon.jsm:emit:327
[task 2020-04-23T17:52:56.711Z] 17:52:56 INFO - resource://gre/modules/Extension.jsm:receiveMessage:1951
[task 2020-04-23T17:52:56.711Z] 17:52:56 INFO - MessageListener.receiveMessageresource://gre/modules/Extension.jsm:Extension:1771
[task 2020-04-23T17:52:56.712Z] 17:52:56 INFO - resource://testing-common/ExtensionTestCommon.jsm:generate:458
[task 2020-04-23T17:52:56.712Z] 17:52:56 INFO - resource://specialpowers/SpecialPowersParent.jsm:receiveMessage:979
[task 2020-04-23T17:52:56.713Z] 17:52:56 INFO - JSWindowActor query*resource://specialpowers/SpecialPowersChild.jsm:loadExtension:2067
[task 2020-04-23T17:52:56.713Z] 17:52:56 INFO - chrome://mochikit/content/tests/SimpleTest/ExtensionTestUtils.js:ExtensionTestUtils.loadExtension:113
[task 2020-04-23T17:52:56.714Z] 17:52:56 INFO - chrome://mochitests/content/browser/browser/components/extensions/test/browser/browser_ext_tabs_zoom.js:test_zoom_api:249
[task 2020-04-23T17:52:56.714Z] 17:52:56 INFO - chrome://mochikit/content/browser-test.js:Tester_execTest/<:1039
[task 2020-04-23T17:52:56.715Z] 17:52:56 INFO - chrome://mochikit/content/browser-test.js:Tester_execTest:1074
[task 2020-04-23T17:52:56.715Z] 17:52:56 INFO - chrome://mochikit/content/browser-test.js:nextTest/<:904
[task 2020-04-23T17:52:56.716Z] 17:52:56 INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:SimpleTest.waitForFocus/waitForFocusInner/focusedOrLoaded/<:918

Comment 1

[Emilio Cobos Álvarez (:emilio)]

Attachment: Bug 1632641 - Fix flakyness in browser_ext_tabs_zoom.js r=kmag,aswan

This test was already a bit flaky it seems, see bug 1630399 for example.

But it has become much worse with my Fission zoom changes in bug 1612068, which
made the FullZoomChange events that this API relies on more async.

Properly wait for an event for the right tab instead of assuming that the last
zoom event was for the tab we happen to be waiting on.

Comment 2

[Intermittent Failures Robot]

60 failures in 999 pushes (0.06 failures/push) were associated with this bug yesterday.

Repository breakdown:

• autoland: 55
• mozilla-central: 5

Platform breakdown:

• linux1804-64: 10
• macosx1014-64-shippable: 2
• linux1804-64-asan: 5
• windows10-64: 12
• linux1804-64-shippable: 4
• windows10-64-shippable-qr: 9
• windows10-64-shippable: 3
• windows7-32: 6
• windows7-32-shippable: 6
• linux1804-64-ccov: 1
• windows10-64-ccov: 1
• windows10-64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1632641&startday=2020-04-23&endday=2020-04-23&tree=all

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/93842a33d01a
Fix flakyness in browser_ext_tabs_zoom.js r=aswan

Comment 4

[Intermittent Failures Robot]

152 failures in 1125 pushes (0.135 failures/push) were associated with this bug yesterday.

** This test has failed more than 150 times in the last 21 days. It should be disabled until it can be fixed. **

Repository breakdown:

• autoland: 67
• mozilla-central: 52
• try: 33

Platform breakdown:

• windows7-32: 15
• windows10-64: 28
• linux1804-64-asan: 27
• linux1804-64: 16
• windows10-64-shippable-qr: 14
• windows7-32-shippable: 10
• linux1804-64-ccov: 4
• linux1804-64-shippable: 8
• macosx1014-64-shippable: 4
• windows10-64-shippable: 10
• windows10-64-qr: 11
• macosx1014-64: 1
• linux1804-64-devedition: 1
• windows10-64-devedition: 1
• windows7-32-devedition: 1
• windows10-64-ccov: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1632641&startday=2020-04-24&endday=2020-04-24&tree=all

Comment 5

[Razvan Maries]

https://hg.mozilla.org/mozilla-central/rev/93842a33d01a

Comment 6

[Intermittent Failures Robot]

212 failures in 5582 pushes (0.038 failures/push) were associated with this bug in the last 7 days.

This is the #4 most frequent failure this week.

** This failure happened more than 75 times this week! Resolving this bug is a very high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 1 week, the affected test(s) may be disabled. **

Repository breakdown:

• autoland: 122
• mozilla-central: 57
• try: 33

Platform breakdown:

• linux1804-64: 26
• macosx1014-64-shippable: 6
• linux1804-64-asan: 32
• windows10-64: 40
• linux1804-64-shippable: 12
• windows10-64-shippable-qr: 23
• windows10-64-shippable: 13
• windows7-32: 21
• windows7-32-shippable: 16
• linux1804-64-ccov: 5
• windows10-64-ccov: 2
• windows10-64-qr: 12
• macosx1014-64: 1
• linux1804-64-devedition: 1
• windows10-64-devedition: 1
• windows7-32-devedition: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1632641&startday=2020-04-20&endday=2020-04-26&tree=all