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Extend testdriver.js and wptrunner to test AAMs (platform accessibility APIs) #53733

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Fix flake8 errors

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Extend testdriver.js and wptrunner to test AAMs (platform accessibility APIs) #53733

Fix flake8 errors
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Community-TC Integration / wpt-chrome-dev-stability succeeded Jan 22, 2026 in 5m 56s

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: 2026-01-22T19:58:24.655Z
Resolved: 2026-01-22T20:03:33.808Z
Task Execution Time: 5 minutes, 9 seconds, 153 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 2026-01-22 19:58:24.751Z] Task ID: M8lXmkALQp-Yor9vpYYzJg
[taskcluster 2026-01-22 19:58:24.752Z] Worker ID: 1730259270842138583
[taskcluster 2026-01-22 19:58:24.752Z] Worker Group: us-east4-c
[taskcluster 2026-01-22 19:58:24.752Z] Worker Node Type: projects/757942385826/machineTypes/n2-standard-4
[taskcluster 2026-01-22 19:58:24.752Z] Worker Pool: proj-wpt/ci
[taskcluster 2026-01-22 19:58:24.752Z] Worker Version: 46.1.0
[taskcluster 2026-01-22 19:58:24.752Z] Public IP: 34.186.38.149
[taskcluster 2026-01-22 19:58:24.752Z] Hostname: proj-wpt-ci-kaabxjjdrfgn0m97rdp9fw

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  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 1171, in run_func
    self.result = True, self.func(self.protocol, self.url, self.timeout)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 1268, in do_testharness
    raw_results = protocol.testdriver.run(url, self.script_resume, test_window)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 696, in run
    done, rv = handler(test_driver_message)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/base.py", line 805, in __call__
    return callback(url, payload)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/base.py", line 823, in process_action
    result = action_handler(params)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/actions.py", line 609, in __call__
    return self.protocol.platform_accessibility.test_accessibility_api(dom_id, test, api, url)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorplatformaccessibility.py", line 98, in test_accessibility_api
    return self.impl.test_accessibility_api(dom_id, test, api, url)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/platformaccessibility/executoratspi.py", line 170, in test_accessibility_api
    self.__poll_for_tab_if_necessary(url)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/platformaccessibility/executoratspi.py", line 152, in __poll_for_tab_if_necessary
    raise Exception(
Exception: Couldn't find browser chrome in accessibility API ATSPI. Did you turn on accessibility?
ERROR /core-aam/role/button_with_non_false_value_for_aria-haspopup.tentative.html - Traceback (most recent call last):
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 1171, in run_func
    self.result = True, self.func(self.protocol, self.url, self.timeout)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 1268, in do_testharness
    raw_results = protocol.testdriver.run(url, self.script_resume, test_window)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 696, in run
    done, rv = handler(test_driver_message)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/base.py", line 805, in __call__
    return callback(url, payload)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/base.py", line 823, in process_action
    result = action_handler(params)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/actions.py", line 609, in __call__
    return self.protocol.platform_accessibility.test_accessibility_api(dom_id, test, api, url)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorplatformaccessibility.py", line 98, in test_accessibility_api
    return self.impl.test_accessibility_api(dom_id, test, api, url)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/platformaccessibility/executoratspi.py", line 170, in test_accessibility_api
    self.__poll_for_tab_if_necessary(url)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/platformaccessibility/executoratspi.py", line 152, in __poll_for_tab_if_necessary
    raise Exception(
Exception: Couldn't find browser chrome in accessibility API ATSPI. Did you turn on accessibility?
ERROR /core-aam/role/button_with_non_false_value_for_aria-haspopup.tentative.html - Traceback (most recent call last):
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 1171, in run_func
    self.result = True, self.func(self.protocol, self.url, self.timeout)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 1268, in do_testharness
    raw_results = protocol.testdriver.run(url, self.script_resume, test_window)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 696, in run
    done, rv = handler(test_driver_message)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/base.py", line 805, in __call__
    return callback(url, payload)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/base.py", line 823, in process_action
    result = action_handler(params)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/actions.py", line 609, in __call__
    return self.protocol.platform_accessibility.test_accessibility_api(dom_id, test, api, url)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorplatformaccessibility.py", line 98, in test_accessibility_api
    return self.impl.test_accessibility_api(dom_id, test, api, url)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/platformaccessibility/executoratspi.py", line 170, in test_accessibility_api
    self.__poll_for_tab_if_necessary(url)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/platformaccessibility/executoratspi.py", line 152, in __poll_for_tab_if_necessary
    raise Exception(
Exception: Couldn't find browser chrome in accessibility API ATSPI. Did you turn on accessibility?
ERROR /core-aam/role/button_with_non_false_value_for_aria-haspopup.tentative.html - Traceback (most recent call last):
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 1171, in run_func
    self.result = True, self.func(self.protocol, self.url, self.timeout)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 1268, in do_testharness
    raw_results = protocol.testdriver.run(url, self.script_resume, test_window)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 696, in run
    done, rv = handler(test_driver_message)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/base.py", line 805, in __call__
    return callback(url, payload)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/base.py", line 823, in process_action
    result = action_handler(params)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/actions.py", line 609, in __call__
    return self.protocol.platform_accessibility.test_accessibility_api(dom_id, test, api, url)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorplatformaccessibility.py", line 98, in test_accessibility_api
    return self.impl.test_accessibility_api(dom_id, test, api, url)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/platformaccessibility/executoratspi.py", line 170, in test_accessibility_api
    self.__poll_for_tab_if_necessary(url)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/platformaccessibility/executoratspi.py", line 152, in __poll_for_tab_if_necessary
    raise Exception(
Exception: Couldn't find browser chrome in accessibility API ATSPI. Did you turn on accessibility?
ERROR /core-aam/role/button_with_non_false_value_for_aria-haspopup.tentative.html - Traceback (most recent call last):
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 1171, in run_func
    self.result = True, self.func(self.protocol, self.url, self.timeout)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 1268, in do_testharness
    raw_results = protocol.testdriver.run(url, self.script_resume, test_window)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 696, in run
    done, rv = handler(test_driver_message)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/base.py", line 805, in __call__
    return callback(url, payload)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/base.py", line 823, in process_action
    result = action_handler(params)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/actions.py", line 609, in __call__
    return self.protocol.platform_accessibility.test_accessibility_api(dom_id, test, api, url)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorplatformaccessibility.py", line 98, in test_accessibility_api
    return self.impl.test_accessibility_api(dom_id, test, api, url)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/platformaccessibility/executoratspi.py", line 170, in test_accessibility_api
    self.__poll_for_tab_if_necessary(url)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/platformaccessibility/executoratspi.py", line 152, in __poll_for_tab_if_necessary
    raise Exception(
Exception: Couldn't find browser chrome in accessibility API ATSPI. Did you turn on accessibility?
ERROR /core-aam/role/button_with_non_false_value_for_aria-haspopup.tentative.html - Traceback (most recent call last):
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 1171, in run_func
    self.result = True, self.func(self.protocol, self.url, self.timeout)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 1268, in do_testharness
    raw_results = protocol.testdriver.run(url, self.script_resume, test_window)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 696, in run
    done, rv = handler(test_driver_message)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/base.py", line 805, in __call__
    return callback(url, payload)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/base.py", line 823, in process_action
    result = action_handler(params)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/actions.py", line 609, in __call__
    return self.protocol.platform_accessibility.test_accessibility_api(dom_id, test, api, url)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorplatformaccessibility.py", line 98, in test_accessibility_api
    return self.impl.test_accessibility_api(dom_id, test, api, url)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/platformaccessibility/executoratspi.py", line 170, in test_accessibility_api
    self.__poll_for_tab_if_necessary(url)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/platformaccessibility/executoratspi.py", line 152, in __poll_for_tab_if_necessary
    raise Exception(
Exception: Couldn't find browser chrome in accessibility API ATSPI. Did you turn on accessibility?
ERROR /core-aam/role/button_with_non_false_value_for_aria-haspopup.tentative.html - Traceback (most recent call last):
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 1171, in run_func
    self.result = True, self.func(self.protocol, self.url, self.timeout)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 1268, in do_testharness
    raw_results = protocol.testdriver.run(url, self.script_resume, test_window)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 696, in run
    done, rv = handler(test_driver_message)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/base.py", line 805, in __call__
    return callback(url, payload)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/base.py", line 823, in process_action
    result = action_handler(params)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/actions.py", line 609, in __call__
    return self.protocol.platform_accessibility.test_accessibility_api(dom_id, test, api, url)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorplatformaccessibility.py", line 98, in test_accessibility_api
    return self.impl.test_accessibility_api(dom_id, test, api, url)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/platformaccessibility/executoratspi.py", line 170, in test_accessibility_api
    self.__poll_for_tab_if_necessary(url)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/platformaccessibility/executoratspi.py", line 152, in __poll_for_tab_if_necessary
    raise Exception(
Exception: Couldn't find browser chrome in accessibility API ATSPI. Did you turn on accessibility?
 2:11.30 INFO Got 70 unexpected results, with 0 unexpected passes
 2:11.31 wptserve INFO Stopped http server on 127.0.0.1:8000
 2:11.31 wptserve INFO Stopped http server on 127.0.0.1:8001
 2:11.31 wptserve INFO Stopped http server on 127.0.0.1:8444
 2:11.32 wptserve INFO Stopped http server on 127.0.0.1:8003
 2:11.33 wptserve INFO Stopped http server on 127.0.0.1:8443
 2:11.33 wptserve INFO Stopped http server on 127.0.0.1:8002
 2:11.33 wptserve INFO Stopped http server on 127.0.0.1:8445
 2:11.33 wptserve INFO Stopped http server on 127.0.0.1:8446
 2:11.33 wptserve INFO Stopped WebTransport over HTTP/3 server on 127.0.0.1:11000
 2:11.33 wptserve INFO Stopped http server on 127.0.0.1:9000
 2:11.71 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 2:11.71 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 2:11.76 INFO Removed font: Ahem.ttf
 2:11.79 INFO Closing logging queue
 2:11.79 INFO queue closed
 2:11.83 INFO ::: Ran 10 of expected 10 iterations.
 2:11.83 INFO ## All results ##

 2:11.83 INFO ### /core-aam/attribute/aria-autocomplete.tentative.html ###
 2:11.83 INFO | Subtest | Results | Messages |
 2:11.83 INFO |---------|---------|----------|
 2:11.83 INFO |         | ERROR   |          |
 2:11.83 INFO 
 2:11.83 INFO ### /core-aam/attribute/aria-braillelabel.tentative.html ###
 2:11.83 INFO | Subtest | Results | Messages |
 2:11.83 INFO |---------|---------|----------|
 2:11.83 INFO |         | ERROR   |          |
 2:11.83 INFO 
 2:11.83 INFO ### /core-aam/attribute/aria-errormessage.tentative.html ###
 2:11.83 INFO | Subtest | Results | Messages |
 2:11.83 INFO |---------|---------|----------|
 2:11.83 INFO |         | ERROR   |          |
 2:11.83 INFO 
 2:11.83 INFO ### /core-aam/role/blockquote.tentative.html ###
 2:11.83 INFO | Subtest | Results | Messages |
 2:11.83 INFO |---------|---------|----------|
 2:11.83 INFO |         | ERROR   |          |
 2:11.83 INFO 
 2:11.83 INFO ### /core-aam/role/button_with_default_values_for_aria-pressed_and_aria-haspopup.tentative.html ###
 2:11.83 INFO | Subtest | Results | Messages |
 2:11.83 INFO |---------|---------|----------|
 2:11.83 INFO |         | ERROR   |          |
 2:11.83 INFO 
 2:11.83 INFO ### /core-aam/role/button_with_defined_value_for_aria-pressed.tentative.html ###
 2:11.83 INFO | Subtest | Results | Messages |
 2:11.83 INFO |---------|---------|----------|
 2:11.83 INFO |         | ERROR   |          |
 2:11.83 INFO 
 2:11.83 INFO ### /core-aam/role/button_with_non_false_value_for_aria-haspopup.tentative.html ###
 2:11.83 INFO | Subtest | Results | Messages |
 2:11.83 INFO |---------|---------|----------|
 2:11.83 INFO |         | ERROR   |          |
 2:11.83 INFO 
 2:11.83 INFO ::: Running tests in a loop with restarts 10 times : PASS
 2:11.83 INFO :::
 2:11.83 INFO ::: Test verification PASS
 2:11.83 INFO :::
[taskcluster 2026-01-22 20:03:31.985Z] === Task Finished ===
[taskcluster 2026-01-22 20:03:32.514Z] Successful task run with exit code: 0 completed in 307.765 seconds
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