1583347 - Intermittent /intersection-observer/containing-block.html | In containing block and intersecting. - assert_equals: entries.length expected 1 but got 2

Status: RESOLVED INCOMPLETE

(Core :: Layout, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: csabou [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=267985974&repo=mozilla-esr60
Full log: https://queue.taskcluster.net/v1/task/R-JDg-JyQoOMsQfheGOIHg/runs/0/artifacts/public/logs/live_backing.log

---

[task 2019-09-23T16:25:23.150Z] 16:25:23 INFO - TEST-START | /intersection-observer/containing-block.html
[task 2019-09-23T16:25:23.360Z] 16:25:23 INFO - PID 2946 | ++DOCSHELL 0xcde41800 == 9 [pid = 2946] [id = {777675ea-d5b1-458b-9aaf-2ec3e468ae45}]
[task 2019-09-23T16:25:23.360Z] 16:25:23 INFO - PID 2946 | ++DOMWINDOW == 24 (0xcfb62c00) [pid = 2946] [serial = 24] [outer = (nil)]
[task 2019-09-23T16:25:23.396Z] 16:25:23 INFO - PID 2946 | ++DOMWINDOW == 25 (0xcde4ac00) [pid = 2946] [serial = 25] [outer = 0xcfb62c00]
[task 2019-09-23T16:25:23.505Z] 16:25:23 INFO - PID 2946 | ++DOMWINDOW == 26 (0xcde46400) [pid = 2946] [serial = 26] [outer = 0xcfb62c00]
[task 2019-09-23T16:25:24.017Z] 16:25:24 INFO -
[task 2019-09-23T16:25:24.017Z] 16:25:24 INFO - TEST-PASS | /intersection-observer/containing-block.html | IntersectionObserver should only report intersections if root is a containing block ancestor of target.
[task 2019-09-23T16:25:24.017Z] 16:25:24 INFO - TEST-UNEXPECTED-FAIL | /intersection-observer/containing-block.html | In containing block and intersecting. - assert_equals: entries.length expected 1 but got 2
[task 2019-09-23T16:25:24.018Z] 16:25:24 INFO - checkLastEntry@http://web-platform.test:8000/intersection-observer/resources/intersection-observer-test-utils.js:83:3
[task 2019-09-23T16:25:24.018Z] 16:25:24 INFO - test1@http://web-platform.test:8000/intersection-observer/containing-block.html:51:3
[task 2019-09-23T16:25:24.019Z] 16:25:24 INFO - Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:1494:20
[task 2019-09-23T16:25:24.020Z] 16:25:24 INFO - Test.prototype.step_func_done/<@http://web-platform.test:8000/resources/testharness.js:1534:17
[task 2019-09-23T16:25:24.020Z] 16:25:24 INFO - Test.prototype.step_timeout/<@http://web-platform.test:8000/resources/testharness.js:1552:20
[task 2019-09-23T16:25:24.021Z] 16:25:24 INFO - Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:1494:20
[task 2019-09-23T16:25:24.023Z] 16:25:24 INFO - Test.prototype.step_func/<@http://web-platform.test:8000/resources/testharness.js:1518:20
[task 2019-09-23T16:25:24.024Z] 16:25:24 INFO -

Comment 1

[Intermittent Failures Robot]

1 failures in 4530 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-esr60: 1

Platform breakdown:

• linux32: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1583347&startday=2019-09-23&endday=2019-09-29&tree=all

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

https://wiki.mozilla.org/Bug_Triage#Intermittent_Test_Failure_Cleanup
For more information, please visit auto_nag documentation.