1938221 - Intermittent devtools/client/responsive/test/browser/browser_touch_simulation.js | single tracking bug

Status: RESOLVED INCOMPLETE

(DevTools :: Responsive Design Mode, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: sstanca [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=487496443&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/JDtp3TknSZOPQMq7ggWvfQ/runs/0/artifacts/public/logs/live_backing.log

---

[task 2024-12-18T21:07:48.388Z] 21:07:48     INFO - TEST-PASS | devtools/client/responsive/test/browser/browser_touch_simulation.js | Changed touch is defined. - {} == true - 
[task 2024-12-18T21:07:48.932Z] 21:07:48     INFO - testWithMetaViewportEnabled: click the div element with <meta name='viewport'>
[task 2024-12-18T21:07:49.302Z] 21:07:49     INFO - TEST-INFO | started process screentopng
[task 2024-12-18T21:07:49.638Z] 21:07:49     INFO - TEST-INFO | screentopng: exit 0
[task 2024-12-18T21:07:49.640Z] 21:07:49     INFO - TEST-UNEXPECTED-FAIL | devtools/client/responsive/test/browser/browser_touch_simulation.js | (empty): There should be greater than a 250ms delay between touch events and mouse events. Got delay of 246ms - false == true - got false, expected true (operator ==)
[task 2024-12-18T21:07:49.641Z] 21:07:49     INFO - Stack trace:
[task 2024-12-18T21:07:49.641Z] 21:07:49     INFO - ok@resource://testing-common/SpecialPowersSandbox.sys.mjs:85:21
[task 2024-12-18T21:07:49.641Z] 21:07:49     INFO - testDelay@chrome://mochitests/content/browser/devtools/client/responsive/test/browser/browser_touch_simulation.js:252:11
[task 2024-12-18T21:07:49.641Z] 21:07:49     INFO - async*@chrome://mochitests/content/browser/devtools/client/responsive/test/browser/browser_touch_simulation.js:276:13
[task 2024-12-18T21:07:49.641Z] 21:07:49     INFO - async*execute@resource://testing-common/SpecialPowersSandbox.sys.mjs:139:12
[task 2024-12-18T21:07:49.641Z] 21:07:49     INFO - _spawnTask@resource://testing-common/SpecialPowersChild.sys.mjs:1620:15
[task 2024-12-18T21:07:49.642Z] 21:07:49     INFO - receiveMessage@resource://testing-common/SpecialPowersChild.sys.mjs:255:21
[task 2024-12-18T21:07:49.642Z] 21:07:49     INFO - JSActor query*receiveMessage@resource://testing-common/SpecialPowersParent.sys.mjs:1383:14
[task 2024-12-18T21:07:49.642Z] 21:07:49     INFO - JSActor query*spawn@resource://testing-common/SpecialPowersChild.sys.mjs:1549:17
[task 2024-12-18T21:07:49.642Z] 21:07:49     INFO - testWithMetaViewportEnabled@chrome://mochitests/content/browser/devtools/client/responsive/test/browser/browser_touch_simulation.js:236:23
[task 2024-12-18T21:07:49.642Z] 21:07:49     INFO - async*@chrome://mochitests/content/browser/devtools/client/responsive/test/browser/browser_touch_simulation.js:23:9
[task 2024-12-18T21:07:49.643Z] 21:07:49     INFO - async*addRDMTaskWithPreAndPost/<@chrome://mochitests/content/browser/devtools/client/responsive/test/browser/head.js:169:25
[task 2024-12-18T21:07:49.643Z] 21:07:49     INFO - async*handleTask@chrome://mochikit/content/browser-test.js:1147:26
[task 2024-12-18T21:07:49.643Z] 21:07:49     INFO - _runTaskBasedTest@chrome://mochikit/content/browser-test.js:1219:18
[task 2024-12-18T21:07:49.643Z] 21:07:49     INFO - Tester_execTest@chrome://mochikit/content/browser-test.js:1360:14
[task 2024-12-18T21:07:49.644Z] 21:07:49     INFO - nextTest/<@chrome://mochikit/content/browser-test.js:1136:14
[task 2024-12-18T21:07:49.644Z] 21:07:49     INFO - SimpleTest.waitForFocus/<@chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:1058:13
[task 2024-12-18T21:07:49.644Z] 21:07:49     INFO - testWithMetaViewportDisabled: click the div with <meta name='viewport'>
[task 2024-12-18T21:07:49.876Z] 21:07:49     INFO - TEST-PASS | devtools/client/responsive/test/browser/browser_touch_simulation.js | There should be greater than a 250ms delay between touch events and mouse events. Got delay of 343ms - true == true - 

Comment 1

[Intermittent Failures Robot]

Summary

1 failures in 3774 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Platform and build breakdown:

• linux1804-64-tsan-qr: 1
  • opt: 1

Table

	1proc	1proc-s	1proc-swr	a11y-checks	a11y-checks-s	a11y-checks-swr	a11y-checks-swr-s	condprof-s	fis	fis-hv	fis-hv-s	fis-s	headless	headless-s	http2	http3	mda-gpu	mda-gpu-s	msix	msix-s	no_variant	nofis	nofis-aab	nofis-s	nofis-ship	nofis-ship-s	nofis-spi	nofis-swr	nofis-swr-s	nogpu	nogpu-s	s	spi	spi-nw	spi-nw-1proc	spi-nw-nofis	spi-nw-nofis-s	spi-nw-s	spi-s	swr	swr-s	vt	vt-s	wmfme	wr-dc2-o	xorig	xorig-s
linux1804-64-tsan-qr/opt																					1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1938221&startday=2024-12-16&endday=2024-12-22&tree=all

Comment 2

[BugBot [:suhaib / :marco]]

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

Comment 3

[Intermittent Failures Robot]

1 failures were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 1

Table

	asan	debug	no_variant	opt	tsan
linux1804-x86_64/debug			1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1938221&startday=2025-05-12&endday=2025-05-18&tree=all

Comment 4

[Intermittent Failures Robot]

2 failures were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-esr140: 1
• try: 1

Table

	no_variant
windows11-x86_64/debug	2/51

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1938221&startday=2025-06-30&endday=2025-07-06&tree=all

Comment 5

[Intermittent Failures Robot]

1 failures were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Table

	no_variant
linux1804-x86_64/tsan	1/99

• x/y indicates test failures and total runs; only x means number of runs is unknown.

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1938221&startday=2025-07-21&endday=2025-07-27&tree=all

Comment 6

[Intermittent Failures Robot]

1 failures were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1

Table

	a11y_checks	http3	no_variant	socketprocess_networking
linux2404-x86_64/opt			1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1938221&startday=2025-08-18&endday=2025-08-24&tree=all

Comment 7

[Intermittent Failures Robot]

1 failures were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Table

	no_variant
windows11-x86_64/debug	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1938221&startday=2025-09-08&endday=2025-09-14&tree=all

Comment 8

[Intermittent Failures Robot]

1 failures were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 1

Table

	no_variant
windows11-x86_64/debug	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1938221&startday=2025-09-22&endday=2025-09-28&tree=all

Comment 9

[Intermittent Failures Robot]

1 failures were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1

Table

	no_variant
windows11-x86_64/debug	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1938221&startday=2025-11-03&endday=2025-11-09&tree=all

Comment 10

[Intermittent Failures Robot]

1 failures were associated with this bug in the last 7 days.

Repository breakdown:

• try: 1

Table

	a11y_checks	http3	no_variant
linux2404-x86_64/tsan			1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1938221&startday=2025-12-22&endday=2025-12-28&tree=all

Comment 11

[Intermittent Failures Robot]

1 failures were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Table

	no_variant
windows11-x86_64/debug	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1938221&startday=2026-01-05&endday=2026-01-11&tree=all

Comment 12

[Intermittent Failures Robot]

1 failures were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1

Table

	no_variant
windows11-x86_64/debug	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1938221&startday=2026-01-12&endday=2026-01-18&tree=all