forked from mirrors/gecko-dev
12288e9042
Automatic update from web-platform-tests
Update URLs to Web IDL
Only two instances of "heycam.github.io" remain now.
interfaces/WebIDL.idl will be updated when webref is updated next time,
as it has already been fixed there:
7c04f47557
resources/webidl2/lib/webidl2.js is third-party code and will be updated
at some point in the future.
--
wpt-commits: 9a88dfd5bf623a8cb326c154b27f1e3494e11022
wpt-pr: 31148
69 lines
2.6 KiB
HTML
69 lines
2.6 KiB
HTML
<!doctype html>
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<meta charset="utf-8">
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<title>Legacy callback interface objects</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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<link rel="author" title="Domenic Denicola" href="mailto:d@domenic.me">
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<link rel="help" href="https://webidl.spec.whatwg.org/#legacy-callback-interface-object">
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<script>
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test(() => {
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assert_equals(typeof NodeFilter, "function");
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}, "Must be a function according to typeof");
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test(() => {
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assert_true(Object.getPrototypeOf(NodeFilter) === Function.prototype);
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}, "Must have the correct [[Prototype]]");
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test(() => {
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const propDesc = Object.getOwnPropertyDescriptor(window, "NodeFilter");
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assert_true(propDesc.writable, "writable");
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assert_false(propDesc.enumerable, "enumerable");
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assert_true(propDesc.configurable, "configurable");
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}, "Must have the correct property descriptor");
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test(() => {
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assert_throws_js(TypeError, () => NodeFilter(), "call");
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assert_throws_js(TypeError, () => new NodeFilter(), "construct");
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}, "Must throw a TypeError when called or constructed")
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test(() => {
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assert_false(NodeFilter.hasOwnProperty("prototype"));
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}, "Must not have a .prototype property");
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test(() => {
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assert_true(NodeFilter.hasOwnProperty("name"));
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assert_equals(NodeFilter.name, "NodeFilter");
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const propDesc = Object.getOwnPropertyDescriptor(NodeFilter, "name");
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assert_false(propDesc.writable, "writable");
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assert_false(propDesc.enumerable, "enumerable");
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assert_true(propDesc.configurable, "configurable");
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}, "Must have an own name property equal to the interface name and with the correct descriptors");
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test(() => {
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assert_true(NodeFilter.hasOwnProperty("length"));
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assert_equals(NodeFilter.length, 0);
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const propDesc = Object.getOwnPropertyDescriptor(NodeFilter, "length");
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assert_false(propDesc.writable, "writable");
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assert_false(propDesc.enumerable, "enumerable");
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assert_true(propDesc.configurable, "configurable");
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}, "Must have an own length property with value zero and the correct descriptors");
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test(() => {
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// The JS spec (OrdinaryHasInstance) bails out early for non-objects
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// Historically we overrode [[HasInstance]] to throw anyway, but this was removed:
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// https://github.com/heycam/webidl/pull/356
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assert_false(5 instanceof NodeFilter, "5");
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// OrdinaryHasInstance throws a TypeError if the right-hand-side doesn't have a .prototype object,
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// which is the case for callback interfaces.
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assert_throws_js(TypeError, () => {
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(function () { }) instanceof NodeFilter;
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});
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assert_throws_js(TypeError, () => {
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({ }) instanceof NodeFilter;
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});
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}, "instanceof must throw but only when we don't bail out early");
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</script>
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