forked from mirrors/gecko-dev
e854427754
Automatic update from web-platform-tests bindings: Fix ObservableArray's ownKeys trap Fixes the 'ownKeys' trap of observable arrays so that it enumerates not only enumerable properties but also non-enumerable string properties and symbol properties. https://webidl.spec.whatwg.org/#es-observable-array-ownKeys 3.10.6. ownKeys step 6. Extend keys with ! O.[[OwnPropertyKeys]](). then, https://tc39.es/ecma262/#sec-ordinary-object-internal-methods-and-internal-slots-ownpropertykeys then, https://tc39.es/ecma262/#sec-ordinaryownpropertykeys This requires not only enumerable but also non-enumerable, plus not only string but also symbol properties. Bug: 1295410 Change-Id: Ibd720aa2a9c5df3327ae8cf3487a200b5221fde2 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3449738 Reviewed-by: Raphael Kubo Da Costa <raphael.kubo.da.costa@intel.com> Commit-Queue: Yuki Shiino <yukishiino@chromium.org> Cr-Commit-Position: refs/heads/main@{#972844} -- wpt-commits: a82394afb1654b379809e6b38a0d9138293b1b46 wpt-pr: 32872
34 lines
1.2 KiB
JavaScript
34 lines
1.2 KiB
JavaScript
"use strict";
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test(() => {
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const observableArray = document.adoptedStyleSheets;
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assert_array_equals(
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Object.getOwnPropertyNames(observableArray),
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["length"],
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"Initially only \"length\".");
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observableArray["zzz"] = true;
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observableArray["aaa"] = true;
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assert_array_equals(
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Object.getOwnPropertyNames(observableArray),
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["length", "zzz", "aaa"],
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"Own properties whose key is a string have been added.");
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observableArray[0] = new CSSStyleSheet();
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observableArray[1] = new CSSStyleSheet();
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assert_array_equals(
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Object.getOwnPropertyNames(observableArray),
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["0", "1", "length", "zzz", "aaa"],
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"Own properties whose key is an array index have been added.");
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observableArray[Symbol.toStringTag] = "string_tag";
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observableArray[Symbol.toPrimitive] = "primitive";
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assert_array_equals(
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Object.getOwnPropertyNames(observableArray),
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["0", "1", "length", "zzz", "aaa"],
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"Own properties whose key is a symbol have been added (non-symbol).");
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assert_array_equals(
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Object.getOwnPropertySymbols(observableArray),
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[Symbol.toStringTag, Symbol.toPrimitive],
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"Own properties whose key is a symbol have been added (symbol).");
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}, "ObservableArray's ownKeys trap");
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