234139 2021-12-10 03:45:29 -0800 [WPT] test_driver.Actions() not working properly 2022-01-19 12:13:03 -0800 1 1 1 Unclassified WebKit Tools / Tests WebKit Nightly Build Unspecified Unspecified NEW InRadar, WPTImpact P2 Normal --- 1 rego webkit-unassigned graouts gsnedders webkit-bug-importer oldest_to_newest 1822636 0 rego 2021-12-10 03:45:29 -0800 In several WPT tests that are using test_driver.Actions() we get the following error: ReferenceError: Can't find variable: action This is a list of tests with such error: imported/w3c/web-platform-tests/css/css-scroll-snap/snap-at-user-scroll-end-expected.txt imported/w3c/web-platform-tests/dom/events/document-level-wheel-event-listener-passive-by-default-expected.txt imported/w3c/web-platform-tests/dom/events/document-level-wheel-event-listener-passive-by-default.tentative-expected.txt imported/w3c/web-platform-tests/dom/events/scrolling/iframe-chains-expected.txt imported/w3c/web-platform-tests/html/semantics/forms/the-button-element/active-onblur-expected.txt imported/w3c/web-platform-tests/html/semantics/forms/the-input-element/checkable-active-onblur-expected.txt imported/w3c/web-platform-tests/html/semantics/forms/the-label-element/proxy-modifier-click-to-associated-element.tentative-expected.txt imported/w3c/web-platform-tests/pointerevents/compat/pointerevent_mouseevent_key_pressed-expected.txt imported/w3c/web-platform-tests/pointerevents/pointerevent_touch-action-keyboard-expected.txt imported/w3c/web-platform-tests/shadow-dom/accesskey.tentative-expected.txt imported/w3c/web-platform-tests/uievents/order-of-events/focus-events/focus-management-expectations-expected.txt imported/w3c/web-platform-tests/uievents/order-of-events/mouse-events/wheel-basic-expected.txt imported/w3c/web-platform-tests/uievents/order-of-events/mouse-events/wheel-scrolling-expected.txt 1822642 1 rego 2021-12-10 03:56:40 -0800 It's worth noting that these tests run fine in wpt.fyi: https://wpt.fyi/results/shadow-dom/accesskey.tentative.html 1825039 2 webkit-bug-importer 2021-12-17 03:46:17 -0800 <rdar://problem/86625135> 1832138 3 gsnedders 2022-01-19 12:13:03 -0800 @http://localhost:8800/resources/testdriver-vendor.js:264:75 send@http://localhost:8800/resources/testdriver-actions.js:70:41 global code@http://localhost:8800/css/css-scroll-snap/snap-at-user-scroll-end.html:107:12 So it's the reference to action at https://github.com/WebKit/WebKit/blob/eb14e0ccb41166c7509ce8b445d4e663a1dfd31a/LayoutTests/imported/w3c/web-platform-tests/resources/testdriver-vendor.js#L264 Blame claims it's a regression from https://github.com/WebKit/WebKit/commit/95ae6591e8f12d43817a52ad728e9c438bf9a0cc, bug 197101.