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test: add webidl web-platform tests
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‎test/fixtures/wpt/README.md‎

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- wasm/webapi: https://github.com/web-platform-tests/wpt/tree/fd1b23eeaa/wasm/webapi
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- web-locks: https://github.com/web-platform-tests/wpt/tree/10a122a6bc/web-locks
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- WebCryptoAPI: https://github.com/web-platform-tests/wpt/tree/1e4933113d/WebCryptoAPI
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- webidl: https://github.com/web-platform-tests/wpt/tree/63ca529a02/webidl
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- webidl/ecmascript-binding/es-exceptions: https://github.com/web-platform-tests/wpt/tree/2f96fa1996/webidl/ecmascript-binding/es-exceptions
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- webmessaging/broadcastchannel: https://github.com/web-platform-tests/wpt/tree/6495c91853/webmessaging/broadcastchannel
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- webstorage: https://github.com/web-platform-tests/wpt/tree/1d2c5fb36a/webstorage

‎test/fixtures/wpt/versions.json‎

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"commit": "1e4933113d2028e092d07a9e865db8f606b21026",
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"path": "WebCryptoAPI"
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},
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"webidl": {
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"commit": "63ca529a021fec15b2996db82fd7dd04c11abe85",
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"path": "webidl"
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},
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"webidl/ecmascript-binding/es-exceptions": {
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"commit": "2f96fa19966d6bc19e979a09479ac8a7aa337c54",
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"path": "webidl/ecmascript-binding/es-exceptions"

‎test/fixtures/wpt/webidl/META.yml‎

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spec: https://webidl.spec.whatwg.org/
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suggested_reviewers:
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- yuki3

‎test/fixtures/wpt/webidl/README.md‎

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Tests for the [Web IDL Standard](https://webidl.spec.whatwg.org/).

‎test/fixtures/wpt/webidl/current-realm.html‎

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<!-- This tests the agreed upon outcome for https://www.w3.org/Bugs/Public/show_bug.cgi?id=24652
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that has not been reflected in the IDL standard yet due to lack of editing resources.
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TODO: https://github.com/w3c/webcrypto/issues/85 -->
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<!DOCTYPE html>
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<meta charset=utf-8>
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<title>Current Realm</title>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<div id="log"></div>
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<iframe srcdoc="<body test>"></iframe>
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<script>
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setup({explicit_done:true})
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function isObjectFromGlobal(object, global) {
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return object instanceof global.Object;
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}
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function assert_global(obj) {
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assert_false(isObjectFromGlobal(obj, self), obj + " should not be from top-level Realm")
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assert_true(isObjectFromGlobal(obj, self[0]), obj + " should be from <iframe> Realm")
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}
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onload = function() {
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[["querySelectorAll", "test"],
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["createElement", "x"],
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["createElementNS", null, "x"],
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["createDocumentFragment"],
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["createTextNode", "test"],
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["createComment", "test"],
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["createProcessingInstruction", "x", "x"],
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["createAttribute", "x"],
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["createAttributeNS", "x", "x"],
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["createEvent", "Event"],
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["createRange"],
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["createNodeIterator", document.head],
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["createTreeWalker", document.head]].forEach(function(val) {
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test(function() {
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const method = val.shift();
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let obj = self[0].document[method](...val);
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assert_global(obj)
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obj = Document.prototype[method].call(self[0].document, ...val);
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assert_global(obj)
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}, val[0])
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})
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;["Request", "Response"].forEach(val => {
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test(() => {
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const obj = new self[0][val]("about:blank");
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assert_global(obj);
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const cloneObj = obj.clone();
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assert_global(cloneObj);
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const involvedCloneObj = self[val].prototype["clone"].call(cloneObj);
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assert_global(cloneObj);
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}, val)
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})
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// Note: these are not [NewObject] and can be cached. But across globals?
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;[["getElementsByTagName", "x"],
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["getElementsByTagNameNS", null, "x"],
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["getElementsByClassName", "x"]].forEach(function(val) {
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test(function() {
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const method = val.shift();
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const obj = self[0].document[method](...val);
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assert_global(obj)
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const obj2 = Document.prototype[method].call(self[0].document, ...val);
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assert_global(obj)
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assert_equals(obj, obj2) // XXX this might be controversial
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}, val[0])
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})
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;[["createDocumentType", "x", "", ""],
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["createDocument", null, "", null],
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["createHTMLDocument", "x"]].forEach(function(val) {
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test(function() {
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const method = val.shift();
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let obj = self[0].document.implementation[method](...val);
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assert_global(obj)
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obj = DOMImplementation.prototype[method].call(self[0].document.implementation, ...val);
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assert_global(obj)
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}, val[0])
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})
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;[["item", 0],
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["getNamedItem", "test"],
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["getNamedItemNS", null, "test"]].forEach(function(val) {
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test(function() {
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const method = val.shift();
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const obj = self[0].document.body.attributes[method](...val);
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assert_global(obj)
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const obj2 = NamedNodeMap.prototype[method].call(self[0].document.body.attributes, ...val);
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assert_global(obj)
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assert_equals(obj, obj2)
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}, "NamedNodeMap " + val[0])
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})
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test(function() {
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var c = self[0].document.createTextNode(""),
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obj = c.splitText(0)
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assert_global(obj)
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obj = Text.prototype.splitText.call(c, "")
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assert_global(obj)
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}, "splitText")
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;["extractContents",
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"cloneContents",
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"cloneRange"].forEach(function(val) {
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test(function() {
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var c = self[0].document.createRange(),
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obj = c[val]()
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assert_global(obj)
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obj = Range.prototype[val].call(c)
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assert_global(obj)
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}, val)
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})
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;["2d", "webgl"].forEach(function(val) {
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test(function() {
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var c = self[0].document.createElement("canvas"),
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obj = c.getContext(val)
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// WebGL might not be enabled in this environment
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if (!obj && val === "webgl") {
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return;
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}
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assert_global(obj)
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obj = HTMLCanvasElement.prototype.getContext.call(c, val)
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assert_global(obj)
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}, "getContext " + val)
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})
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;[["createImageData", 5, 5],
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["getImageData", 5, 5, 5, 5]].forEach(function(val) {
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test(function() {
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const method = val.shift();
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const c = self[0].document.createElement("canvas").getContext("2d");
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let obj = c[method](...val);
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assert_global(obj)
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assert_global(obj.data)
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obj = CanvasRenderingContext2D.prototype[method].call(c, ...val);
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assert_global(obj)
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assert_global(obj.data)
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}, val[0])
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})
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test(function() {
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var c = new self[0].FontFace("test", "about:blank"),
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obj = c.load()
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assert_global(obj)
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obj = FontFace.prototype.load.call(c)
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assert_global(obj)
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}, "FontFace's load()")
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done()
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}
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</script>

‎test/fixtures/wpt/webidl/ecmascript-binding/allow-resizable.html‎

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<!DOCTYPE html>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/common/sab.js"></script>
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<script type="module">
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test(t => {
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// Fixed-length ABs should not throw
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const ab = new ArrayBuffer(16);
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new Response(new Uint8Array(ab));
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const rab = new ArrayBuffer(16, { maxByteLength: 1024 });
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// Response doesn't have [AllowResizable] or [AllowShared]
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assert_throws_js(TypeError, () => {
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new Response(new Uint8Array(rab));
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});
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}, "APIs without [AllowResizable] throw when passed resizable ArrayBuffers");
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test(t => {
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const enc = new TextEncoder();
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// Fixed-length SABs should not throw
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const sab = createBuffer('SharedArrayBuffer', 16);
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enc.encodeInto("foobar", new Uint8Array(sab));
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const gsab = createBuffer('SharedArrayBuffer', 16, { maxByteLength: 1024 });
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// TextEncoder.encodeInto doesn't have [AllowResizable] but has [AllowShared]
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assert_throws_js(TypeError, () => {
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enc.encodeInto("foobar", new Uint8Array(gsab));
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});
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}, "APIs with [AllowShared] but without [AllowResizable] throw when passed growable SharedArrayBuffers");
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</script>

‎test/fixtures/wpt/webidl/ecmascript-binding/attributes-accessors-unique-function-objects.html‎

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<!DOCTYPE html>
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<meta charset="utf-8">
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<title>All attributes accessors are unique function objects</title>
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<link rel="help" href="https://webidl.spec.whatwg.org/#idl-interface-mixins">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script>
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"use strict";
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test(() => {
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const seenPrototypes = new WeakSet([Function.prototype]);
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const seenFunctions = new WeakMap();
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for (const windowKey of Object.getOwnPropertyNames(window)) {
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const windowValue = window[windowKey];
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if (typeof windowValue !== "function") continue;
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const {prototype} = windowValue;
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if (!prototype || seenPrototypes.has(prototype)) continue;
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seenPrototypes.add(prototype);
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for (const key of Object.getOwnPropertyNames(prototype)) {
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const assert_not_seen = (fn, field) => {
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const fnInfo = `${windowKey}.${key}.${field}`;
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assert_equals(seenFunctions.get(fn), undefined, fnInfo);
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seenFunctions.set(fn, fnInfo);
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};
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const desc = Object.getOwnPropertyDescriptor(prototype, key);
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if (desc.get) assert_not_seen(desc.get, "[[Get]]");
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if (desc.set) assert_not_seen(desc.set, "[[Set]]");
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}
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}
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}, "For attributes, each copy of the accessor property has distinct built-in function objects for its getters and setters.");
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</script>

‎test/fixtures/wpt/webidl/ecmascript-binding/builtin-function-properties.any.js‎

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"use strict";
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test(() => {
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const ownPropKeys = Reflect.ownKeys(Blob).slice(0, 3);
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assert_array_equals(ownPropKeys, ["length", "name", "prototype"]);
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}, 'Constructor property enumeration order of "length", "name", and "prototype"');
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test(() => {
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assert_own_property(Blob.prototype, "slice");
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const ownPropKeys = Reflect.ownKeys(Blob.prototype.slice).slice(0, 2);
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assert_array_equals(ownPropKeys, ["length", "name"]);
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}, 'Method property enumeration order of "length" and "name"');
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test(() => {
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assert_own_property(Blob.prototype, "size");
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const desc = Reflect.getOwnPropertyDescriptor(Blob.prototype, "size");
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assert_equals(typeof desc.get, "function");
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const ownPropKeys = Reflect.ownKeys(desc.get).slice(0, 2);
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assert_array_equals(ownPropKeys, ["length", "name"]);
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}, 'Getter property enumeration order of "length" and "name"');

‎test/fixtures/wpt/webidl/ecmascript-binding/class-string-interface.any.js‎

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"use strict";
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test(() => {
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assert_own_property(Blob.prototype, Symbol.toStringTag);
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const propDesc = Object.getOwnPropertyDescriptor(Blob.prototype, Symbol.toStringTag);
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assert_equals(propDesc.value, "Blob", "value");
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assert_equals(propDesc.configurable, true, "configurable");
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assert_equals(propDesc.enumerable, false, "enumerable");
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assert_equals(propDesc.writable, false, "writable");
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}, "@@toStringTag exists on the prototype with the appropriate descriptor");
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test(() => {
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assert_not_own_property(new Blob(), Symbol.toStringTag);
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}, "@@toStringTag must not exist on the instance");
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test(() => {
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assert_equals(Object.prototype.toString.call(Blob.prototype), "[object Blob]");
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}, "Object.prototype.toString applied to the prototype");
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test(() => {
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assert_equals(Object.prototype.toString.call(new Blob()), "[object Blob]");
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}, "Object.prototype.toString applied to an instance");
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test(t => {
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assert_own_property(Blob.prototype, Symbol.toStringTag, "Precondition for this test: @@toStringTag on the prototype");
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t.add_cleanup(() => {
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Object.defineProperty(Blob.prototype, Symbol.toStringTag, { value: "Blob" });
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});
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Object.defineProperty(Blob.prototype, Symbol.toStringTag, { value: "NotABlob" });
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assert_equals(Object.prototype.toString.call(Blob.prototype), "[object NotABlob]", "prototype");
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assert_equals(Object.prototype.toString.call(new Blob()), "[object NotABlob]", "instance");
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}, "Object.prototype.toString applied after modifying the prototype's @@toStringTag");
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test(t => {
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const instance = new Blob();
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assert_not_own_property(instance, Symbol.toStringTag, "Precondition for this test: no @@toStringTag on the instance");
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Object.defineProperty(instance, Symbol.toStringTag, { value: "NotABlob" });
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assert_equals(Object.prototype.toString.call(instance), "[object NotABlob]");
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}, "Object.prototype.toString applied to the instance after modifying the instance's @@toStringTag");
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// Chrome had a bug (https://bugs.chromium.org/p/chromium/issues/detail?id=793406) where if there
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// was no @@toStringTag in the prototype, it would fall back to a magic class string. This tests
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// that the bug is fixed.
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test(() => {
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const instance = new Blob();
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Object.setPrototypeOf(instance, null);
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assert_equals(Object.prototype.toString.call(instance), "[object Object]");
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}, "Object.prototype.toString applied to a null-prototype instance");
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// This test must be last.
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test(() => {
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delete Blob.prototype[Symbol.toStringTag];
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assert_equals(Object.prototype.toString.call(Blob.prototype), "[object Object]", "prototype");
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assert_equals(Object.prototype.toString.call(new Blob()), "[object Object]", "instance");
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}, "Object.prototype.toString applied after deleting @@toStringTag");

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