selectedcontent element mutation record test is wrong #55849
Community-TC Integration / wpt-chrome-dev-stability
succeeded
Jan 14, 2026 in 5m 3s
Community-TC (pull_request)
Verify that all tests affected by a pull request are stable when executed in chrome.
Details
View task in Taskcluster | View logs in Taskcluster | View task group in Taskcluster
Task Status
Started: 2026-01-14T17:47:17.084Z
Resolved: 2026-01-14T17:52:19.265Z
Task Execution Time: 5 minutes, 2 seconds, 181 milliseconds
Task Status: completed
Reason Resolved: completed
RunId: 0
Artifacts
- public/logs/live_backing.log
- public/logs/live.log
- public/results/checkrun.md
WPT Command: python3 ./wpt run --channel=dev --verify --verify-no-chaos-mode --verify-repeat-loop=0 --verify-repeat-restart=10 --github-checks-text-file=/home/test/artifacts/checkrun.md --affected base_head --log-mach-level=info --log-mach=- -y --no-pause --no-restart-on-unexpected --install-fonts --verify-log-full --no-headless --enable-swiftshader --install-browser --install-webdriver chrome
[taskcluster 2026-01-14 17:47:17.206Z] Task ID: c7uz1QRFR9igA5n5bParHQ
[taskcluster 2026-01-14 17:47:17.206Z] Worker ID: 1869868767640187711
[taskcluster 2026-01-14 17:47:17.206Z] Worker Group: us-central1-a
[taskcluster 2026-01-14 17:47:17.206Z] Worker Node Type: projects/757942385826/machineTypes/n2-standard-4
[taskcluster 2026-01-14 17:47:17.206Z] Worker Pool: proj-wpt/ci
[taskcluster 2026-01-14 17:47:17.206Z] Worker Version: 46.1.0
[taskcluster 2026-01-14 17:47:17.206Z] Public IP: 136.114.221.106
[taskcluster 2026-01-14 17:47:17.206Z] Hostname: proj-wpt-ci-uq9ddlnnqt-guinede5w7w
[taskcluster 2026-01-14 17:47:17.906Z] === Task Starting ===
+ '[' '' ']'
+ '[' -d /etc/profile.d ']'
+ for i in /etc/profile.d/*.sh
+ '[' -r /etc/profile.d/01-locale-fix.sh ']'
+ . /etc/profile.d/01-locale-fix.sh
+++ /usr/bin/locale-check C.UTF-8
++ eval
+ for i in /etc/profile.d/*.sh
+ '[' -r /etc/profile.d/apps-bin-path.sh ']'
+ . /etc/profile.d/apps-bin-path.sh
...(1959 lines hidden)...
at Test.step (http://web-platform.test:8000/resources/testharness.js:2869:25)
at test (http://web-platform.test:8000/resources/testharness.js:633:30)
at http://web-platform.test:8000/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html:452:3
FAIL MutationObserver records during parsing of <select> with <selectedcontent>: test4 - assert_array_equals: test4 lengths differ, expected array […, "Type: childList | Target: select | Added: [button] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"]", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: select | Added: [#text: \"\"] | After: button", "Type: childList | Target: select | Added: [div] | After: #text: \"\"", "Type: childList | Target: div | Added: [#text: \"\"]", "Type: childList | Target: div | Added: [option] | After: #text: \"\"", "Type: childList | Target: option | Added: [#text: \"one\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"one\"]", "Type: childList | Target: div | Added: [#text: \"\"] | After: option", "Type: childList | Target: select | Added: [#text: \"\"] | After: div", "Type: childList | Target: select | Added: [div] | After: #text: \"\"", "Type: childList | Target: div | Added: [#text: \"\"]", "Type: childList | Target: div | Added: [option] | After: #text: \"\"", "Type: childList | Target: option | Added: [#text: \"two\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"two\"] | Removed: [#text: \"one\"]", "Type: childList | Target: div | Added: [#text: \"\"] | After: option", "Type: childList | Target: select | Added: [#text: \"\"] | After: div", "Type: childList | Target: div#test4 | Added: [#text: \"\"] | After: select"] length 23, got […, "Type: childList | Target: button | Added: [#text: \"\"]", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: select | Added: [#text: \"\"] | After: button", "Type: childList | Target: select | Added: [div] | After: #text: \"\"", "Type: childList | Target: div | Added: [#text: \"\"]", "Type: childList | Target: div | Added: [option] | After: #text: \"\"", "Type: childList | Target: option | Added: [#text: \"one\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"one\"]", "Type: childList | Target: div | Added: [#text: \"\"] | After: option", "Type: childList | Target: select | Added: [#text: \"\"] | After: div", "Type: childList | Target: select | Added: [div] | After: #text: \"\"", "Type: childList | Target: div | Added: [#text: \"\"]", "Type: childList | Target: div | Added: [option] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Removed: [#text: \"one\"]", "Type: childList | Target: option | Added: [#text: \"two\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"two\"]", "Type: childList | Target: div | Added: [#text: \"\"] | After: option", "Type: childList | Target: select | Added: [#text: \"\"] | After: div", "Type: childList | Target: div#test4 | Added: [#text: \"\"] | After: select"] length 24
at Test.<anonymous> (http://web-platform.test:8000/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html:463:5)
at Test.step (http://web-platform.test:8000/resources/testharness.js:2869:25)
at test (http://web-platform.test:8000/resources/testharness.js:633:30)
at http://web-platform.test:8000/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html:452:3
FAIL MutationObserver records during parsing of <select> with <selectedcontent>: test3 - assert_array_equals: test3 expected property 12 to be "Type: childList | Target: selectedcontent | Removed: [#text: \"outer1\", selectedcontent, #text: \"\"]" but got "Type: childList | Target: selectedcontent | Added: [#text: \"outer2\"]" (expected array […, "Type: childList | Target: select | Added: [#text: \"\"]", "Type: childList | Target: select | Added: [button] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"]", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Added: [#text: \"outer1\"]", "Type: childList | Target: selectedcontent | Added: [selectedcontent] | After: #text: \"outer1\"", "Type: childList | Target: selectedcontent | Added: [#text: \"inner1\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Removed: [#text: \"outer1\", selectedcontent, #text: \"\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"outer2\"]", "Type: childList | Target: selectedcontent | Added: [selectedcontent] | After: #text: \"outer2\"", "Type: childList | Target: selectedcontent | Added: [#text: \"inner2\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: select | Added: [#text: \"\"] | After: button", "Type: childList | Target: select | Added: [option] | After: #text: \"\"", "Type: childList | Target: option | Added: [#text: \"option\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"option\"]", …] got […, "Type: childList | Target: select | Added: [#text: \"\"]", "Type: childList | Target: select | Added: [button] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"]", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Added: [#text: \"outer1\"]", "Type: childList | Target: selectedcontent | Added: [selectedcontent] | After: #text: \"outer1\"", "Type: childList | Target: selectedcontent | Added: [#text: \"inner1\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Added: [#text: \"outer2\"]", "Type: childList | Target: selectedcontent | Added: [selectedcontent] | After: #text: \"outer2\"", "Type: childList | Target: selectedcontent | Added: [#text: \"inner2\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: select | Added: [#text: \"\"] | After: button", "Type: childList | Target: select | Added: [option] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Removed: [#text: \"outer1\", selectedcontent, #text: \"\"]", "Type: childList | Target: option | Added: [#text: \"option\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"option\"]", …])
at Test.<anonymous> (http://web-platform.test:8000/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html:463:5)
at Test.step (http://web-platform.test:8000/resources/testharness.js:2869:25)
at test (http://web-platform.test:8000/resources/testharness.js:633:30)
at http://web-platform.test:8000/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html:452:3
FAIL MutationObserver records during parsing of <select> with <selectedcontent>: test4 - assert_array_equals: test4 lengths differ, expected array […, "Type: childList | Target: select | Added: [button] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"]", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: select | Added: [#text: \"\"] | After: button", "Type: childList | Target: select | Added: [div] | After: #text: \"\"", "Type: childList | Target: div | Added: [#text: \"\"]", "Type: childList | Target: div | Added: [option] | After: #text: \"\"", "Type: childList | Target: option | Added: [#text: \"one\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"one\"]", "Type: childList | Target: div | Added: [#text: \"\"] | After: option", "Type: childList | Target: select | Added: [#text: \"\"] | After: div", "Type: childList | Target: select | Added: [div] | After: #text: \"\"", "Type: childList | Target: div | Added: [#text: \"\"]", "Type: childList | Target: div | Added: [option] | After: #text: \"\"", "Type: childList | Target: option | Added: [#text: \"two\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"two\"] | Removed: [#text: \"one\"]", "Type: childList | Target: div | Added: [#text: \"\"] | After: option", "Type: childList | Target: select | Added: [#text: \"\"] | After: div", "Type: childList | Target: div#test4 | Added: [#text: \"\"] | After: select"] length 23, got […, "Type: childList | Target: button | Added: [#text: \"\"]", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: select | Added: [#text: \"\"] | After: button", "Type: childList | Target: select | Added: [div] | After: #text: \"\"", "Type: childList | Target: div | Added: [#text: \"\"]", "Type: childList | Target: div | Added: [option] | After: #text: \"\"", "Type: childList | Target: option | Added: [#text: \"one\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"one\"]", "Type: childList | Target: div | Added: [#text: \"\"] | After: option", "Type: childList | Target: select | Added: [#text: \"\"] | After: div", "Type: childList | Target: select | Added: [div] | After: #text: \"\"", "Type: childList | Target: div | Added: [#text: \"\"]", "Type: childList | Target: div | Added: [option] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Removed: [#text: \"one\"]", "Type: childList | Target: option | Added: [#text: \"two\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"two\"]", "Type: childList | Target: div | Added: [#text: \"\"] | After: option", "Type: childList | Target: select | Added: [#text: \"\"] | After: div", "Type: childList | Target: div#test4 | Added: [#text: \"\"] | After: select"] length 24
at Test.<anonymous> (http://web-platform.test:8000/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html:463:5)
at Test.step (http://web-platform.test:8000/resources/testharness.js:2869:25)
at test (http://web-platform.test:8000/resources/testharness.js:633:30)
at http://web-platform.test:8000/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html:452:3
FAIL MutationObserver records during parsing of <select> with <selectedcontent>: test3 - assert_array_equals: test3 expected property 12 to be "Type: childList | Target: selectedcontent | Removed: [#text: \"outer1\", selectedcontent, #text: \"\"]" but got "Type: childList | Target: selectedcontent | Added: [#text: \"outer2\"]" (expected array […, "Type: childList | Target: select | Added: [#text: \"\"]", "Type: childList | Target: select | Added: [button] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"]", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Added: [#text: \"outer1\"]", "Type: childList | Target: selectedcontent | Added: [selectedcontent] | After: #text: \"outer1\"", "Type: childList | Target: selectedcontent | Added: [#text: \"inner1\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Removed: [#text: \"outer1\", selectedcontent, #text: \"\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"outer2\"]", "Type: childList | Target: selectedcontent | Added: [selectedcontent] | After: #text: \"outer2\"", "Type: childList | Target: selectedcontent | Added: [#text: \"inner2\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: select | Added: [#text: \"\"] | After: button", "Type: childList | Target: select | Added: [option] | After: #text: \"\"", "Type: childList | Target: option | Added: [#text: \"option\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"option\"]", …] got […, "Type: childList | Target: select | Added: [#text: \"\"]", "Type: childList | Target: select | Added: [button] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"]", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Added: [#text: \"outer1\"]", "Type: childList | Target: selectedcontent | Added: [selectedcontent] | After: #text: \"outer1\"", "Type: childList | Target: selectedcontent | Added: [#text: \"inner1\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Added: [#text: \"outer2\"]", "Type: childList | Target: selectedcontent | Added: [selectedcontent] | After: #text: \"outer2\"", "Type: childList | Target: selectedcontent | Added: [#text: \"inner2\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: select | Added: [#text: \"\"] | After: button", "Type: childList | Target: select | Added: [option] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Removed: [#text: \"outer1\", selectedcontent, #text: \"\"]", "Type: childList | Target: option | Added: [#text: \"option\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"option\"]", …])
at Test.<anonymous> (http://web-platform.test:8000/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html:463:5)
at Test.step (http://web-platform.test:8000/resources/testharness.js:2869:25)
at test (http://web-platform.test:8000/resources/testharness.js:633:30)
at http://web-platform.test:8000/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html:452:3
FAIL MutationObserver records during parsing of <select> with <selectedcontent>: test4 - assert_array_equals: test4 lengths differ, expected array […, "Type: childList | Target: select | Added: [button] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"]", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: select | Added: [#text: \"\"] | After: button", "Type: childList | Target: select | Added: [div] | After: #text: \"\"", "Type: childList | Target: div | Added: [#text: \"\"]", "Type: childList | Target: div | Added: [option] | After: #text: \"\"", "Type: childList | Target: option | Added: [#text: \"one\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"one\"]", "Type: childList | Target: div | Added: [#text: \"\"] | After: option", "Type: childList | Target: select | Added: [#text: \"\"] | After: div", "Type: childList | Target: select | Added: [div] | After: #text: \"\"", "Type: childList | Target: div | Added: [#text: \"\"]", "Type: childList | Target: div | Added: [option] | After: #text: \"\"", "Type: childList | Target: option | Added: [#text: \"two\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"two\"] | Removed: [#text: \"one\"]", "Type: childList | Target: div | Added: [#text: \"\"] | After: option", "Type: childList | Target: select | Added: [#text: \"\"] | After: div", "Type: childList | Target: div#test4 | Added: [#text: \"\"] | After: select"] length 23, got […, "Type: childList | Target: button | Added: [#text: \"\"]", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: select | Added: [#text: \"\"] | After: button", "Type: childList | Target: select | Added: [div] | After: #text: \"\"", "Type: childList | Target: div | Added: [#text: \"\"]", "Type: childList | Target: div | Added: [option] | After: #text: \"\"", "Type: childList | Target: option | Added: [#text: \"one\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"one\"]", "Type: childList | Target: div | Added: [#text: \"\"] | After: option", "Type: childList | Target: select | Added: [#text: \"\"] | After: div", "Type: childList | Target: select | Added: [div] | After: #text: \"\"", "Type: childList | Target: div | Added: [#text: \"\"]", "Type: childList | Target: div | Added: [option] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Removed: [#text: \"one\"]", "Type: childList | Target: option | Added: [#text: \"two\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"two\"]", "Type: childList | Target: div | Added: [#text: \"\"] | After: option", "Type: childList | Target: select | Added: [#text: \"\"] | After: div", "Type: childList | Target: div#test4 | Added: [#text: \"\"] | After: select"] length 24
at Test.<anonymous> (http://web-platform.test:8000/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html:463:5)
at Test.step (http://web-platform.test:8000/resources/testharness.js:2869:25)
at test (http://web-platform.test:8000/resources/testharness.js:633:30)
at http://web-platform.test:8000/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html:452:3
0:34.50 INFO Got 10 unexpected results, with 0 unexpected passes
0:34.50 wptserve INFO Stopped http server on 127.0.0.1:8000
0:34.50 wptserve INFO Stopped http server on 127.0.0.1:8001
0:34.51 wptserve INFO Stopped http server on 127.0.0.1:8002
0:34.51 wptserve INFO Stopped http server on 127.0.0.1:8003
0:34.51 wptserve INFO Stopped http server on 127.0.0.1:8443
0:34.52 wptserve INFO Stopped http server on 127.0.0.1:8444
0:34.52 wptserve INFO Stopped http server on 127.0.0.1:9000
0:34.52 wptserve INFO Stopped http server on 127.0.0.1:8445
0:34.52 wptserve INFO Stopped http server on 127.0.0.1:8446
0:34.53 wptserve INFO Stopped WebTransport over HTTP/3 server on 127.0.0.1:11000
0:34.73 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
0:34.73 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
0:34.78 INFO Removed font: Ahem.ttf
0:34.80 INFO Closing logging queue
0:34.80 INFO queue closed
0:34.81 INFO ::: Ran 10 of expected 10 iterations.
0:34.81 INFO ## All results ##
0:34.81 INFO ### /html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html ###
0:34.81 INFO | Subtest | Results | Messages |
0:34.81 INFO |-------------------------------------------------------------------------------------|---------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
0:34.81 INFO | | OK | |
0:34.81 INFO | `MutationObserver records during parsing of <select> with <selectedcontent>: test1` | PASS | |
0:34.81 INFO | `MutationObserver records during parsing of <select> with <selectedcontent>: test2` | PASS | |
0:34.81 INFO | `MutationObserver records during parsing of <select> with <selectedcontent>: test3` | FAIL | `assert_array_equals: test3 expected property 12 to be "Type: childList \| Target: selectedcontent \| Removed: [#text: \"outer1\", selectedcontent, #text: \"\"]" but got "Type: childList \| Target: selectedcontent \| Added: [#text: \"outer2\"]" (expected array […, "Type: childList \| Target: select \| Added: [#text: \"\"]", "Type: childList \| Target: select \| Added: [button] \| After: #text: \"\"", "Type: childList \| Target: button \| Added: [#text: \"\"]", "Type: childList \| Target: button \| Added: [selectedcontent] \| After: #text: \"\"", "Type: childList \| Target: selectedcontent \| Added: [#text: \"outer1\"]", "Type: childList \| Target: selectedcontent \| Added: [selectedcontent] \| After: #text: \"outer1\"", "Type: childList \| Target: selectedcontent \| Added: [#text: \"inner1\"]", "Type: childList \| Target: selectedcontent \| Added: [#text: \"\"] \| After: selectedcontent", "Type: childList \| Target: button \| Added: [#text: \"\"] \| After: selectedcontent", "Type: childList \| Target: button \| Added: [selectedcontent] \| After: #text: \"\"", "Type: childList \| Target: selectedcontent \| Removed: [#text: \"outer1\", selectedcontent, #text: \"\"]", "Type: childList \| Target: selectedcontent \| Added: [#text: \"outer2\"]", "Type: childList \| Target: selectedcontent \| Added: [selectedcontent] \| After: #text: \"outer2\"", "Type: childList \| Target: selectedcontent \| Added: [#text: \"inner2\"]", "Type: childList \| Target: selectedcontent \| Added: [#text: \"\"] \| After: selectedcontent", "Type: childList \| Target: button \| Added: [#text: \"\"] \| After: selectedcontent", "Type: childList \| Target: select \| Added: [#text: \"\"] \| After: button", "Type: childList \| Target: select \| Added: [option] \| After: #text: \"\"", "Type: childList \| Target: option \| Added: [#text: \"option\"]", "Type: childList \| Target: selectedcontent \| Added: [#text: \"option\"]", …] got […, "Type: childList \| Target: select \| Added: [#text: \"\"]", "Type: childList \| Target: select \| Added: [button] \| After: #text: \"\"", "Type: childList \| Target: button \| Added: [#text: \"\"]", "Type: childList \| Target: button \| Added: [selectedcontent] \| After: #text: \"\"", "Type: childList \| Target: selectedcontent \| Added: [#text: \"outer1\"]", "Type: childList \| Target: selectedcontent \| Added: [selectedcontent] \| After: #text: \"outer1\"", "Type: childList \| Target: selectedcontent \| Added: [#text: \"inner1\"]", "Type: childList \| Target: selectedcontent \| Added: [#text: \"\"] \| After: selectedcontent", "Type: childList \| Target: button \| Added: [#text: \"\"] \| After: selectedcontent", "Type: childList \| Target: button \| Added: [selectedcontent] \| After: #text: \"\"", "Type: childList \| Target: selectedcontent \| Added: [#text: \"outer2\"]", "Type: childList \| Target: selectedcontent \| Added: [selectedcontent] \| After: #text: \"outer2\"", "Type: childList \| Target: selectedcontent \| Added: [#text: \"inner2\"]", "Type: childList \| Target: selectedcontent \| Added: [#text: \"\"] \| After: selectedcontent", "Type: childList \| Target: button \| Added: [#text: \"\"] \| After: selectedcontent", "Type: childList \| Target: select \| Added: [#text: \"\"] \| After: button", "Type: childList \| Target: select \| Added: [option] \| After: #text: \"\"", "Type: childList \| Target: selectedcontent \| Removed: [#text: \"outer1\", selectedcontent, #text: \"\"]", "Type: childList \| Target: option \| Added: [#text: \"option\"]", "Type: childList \| Target: selectedcontent \| Added: [#text: \"option\"]", …])` |
0:34.81 INFO | `MutationObserver records during parsing of <select> with <selectedcontent>: test4` | FAIL | `assert_array_equals: test4 lengths differ, expected array […, "Type: childList \| Target: select \| Added: [button] \| After: #text: \"\"", "Type: childList \| Target: button \| Added: [#text: \"\"]", "Type: childList \| Target: button \| Added: [selectedcontent] \| After: #text: \"\"", "Type: childList \| Target: button \| Added: [#text: \"\"] \| After: selectedcontent", "Type: childList \| Target: select \| Added: [#text: \"\"] \| After: button", "Type: childList \| Target: select \| Added: [div] \| After: #text: \"\"", "Type: childList \| Target: div \| Added: [#text: \"\"]", "Type: childList \| Target: div \| Added: [option] \| After: #text: \"\"", "Type: childList \| Target: option \| Added: [#text: \"one\"]", "Type: childList \| Target: selectedcontent \| Added: [#text: \"one\"]", "Type: childList \| Target: div \| Added: [#text: \"\"] \| After: option", "Type: childList \| Target: select \| Added: [#text: \"\"] \| After: div", "Type: childList \| Target: select \| Added: [div] \| After: #text: \"\"", "Type: childList \| Target: div \| Added: [#text: \"\"]", "Type: childList \| Target: div \| Added: [option] \| After: #text: \"\"", "Type: childList \| Target: option \| Added: [#text: \"two\"]", "Type: childList \| Target: selectedcontent \| Added: [#text: \"two\"] \| Removed: [#text: \"one\"]", "Type: childList \| Target: div \| Added: [#text: \"\"] \| After: option", "Type: childList \| Target: select \| Added: [#text: \"\"] \| After: div", "Type: childList \| Target: div#test4 \| Added: [#text: \"\"] \| After: select"] length 23, got […, "Type: childList \| Target: button \| Added: [#text: \"\"]", "Type: childList \| Target: button \| Added: [selectedcontent] \| After: #text: \"\"", "Type: childList \| Target: button \| Added: [#text: \"\"] \| After: selectedcontent", "Type: childList \| Target: select \| Added: [#text: \"\"] \| After: button", "Type: childList \| Target: select \| Added: [div] \| After: #text: \"\"", "Type: childList \| Target: div \| Added: [#text: \"\"]", "Type: childList \| Target: div \| Added: [option] \| After: #text: \"\"", "Type: childList \| Target: option \| Added: [#text: \"one\"]", "Type: childList \| Target: selectedcontent \| Added: [#text: \"one\"]", "Type: childList \| Target: div \| Added: [#text: \"\"] \| After: option", "Type: childList \| Target: select \| Added: [#text: \"\"] \| After: div", "Type: childList \| Target: select \| Added: [div] \| After: #text: \"\"", "Type: childList \| Target: div \| Added: [#text: \"\"]", "Type: childList \| Target: div \| Added: [option] \| After: #text: \"\"", "Type: childList \| Target: selectedcontent \| Removed: [#text: \"one\"]", "Type: childList \| Target: option \| Added: [#text: \"two\"]", "Type: childList \| Target: selectedcontent \| Added: [#text: \"two\"]", "Type: childList \| Target: div \| Added: [#text: \"\"] \| After: option", "Type: childList \| Target: select \| Added: [#text: \"\"] \| After: div", "Type: childList \| Target: div#test4 \| Added: [#text: \"\"] \| After: select"] length 24` |
0:34.81 INFO | `MutationObserver records during parsing of <select> with <selectedcontent>: test5` | PASS | |
0:34.81 INFO | `MutationObserver records during parsing of <select> with <selectedcontent>: test6` | PASS | |
0:34.81 INFO | `MutationObserver records during parsing of <select> with <selectedcontent>: test7` | PASS | |
0:34.81 INFO
0:34.81 INFO ::: Running tests in a loop with restarts 10 times : PASS
0:34.81 INFO :::
0:34.81 INFO ::: Test verification PASS
0:34.81 INFO :::
[taskcluster 2026-01-14 17:52:17.996Z] === Task Finished ===
[taskcluster 2026-01-14 17:52:18.385Z] Successful task run with exit code: 0 completed in 301.18 seconds
Loading