third_party/WebKit/LayoutTests/custom-elements/spec/define-element.html - Issue 2456773002: Clear the custom element's reaction queue if upgrade fails.

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Issue 2456773002: Clear the custom element's reaction queue if upgrade fails. (Closed)

Patch Set: Created 4 years, 1 month ago

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1 <!DOCTYPE html>	1 <!DOCTYPE html>

2 <title>Custom Elements: defineElement</title>	2 <title>Custom Elements: defineElement</title>

3 <link rel="help" href="https://html.spec.whatwg.org/multipage/scripting.html#cus tomelementsregistry">	3 <link rel="help" href="https://html.spec.whatwg.org/multipage/scripting.html#cus tomelementsregistry">

4 <meta name="author" title="Dominic Cooney" href="mailto:dominicc@chromium.org">	4 <meta name="author" title="Dominic Cooney" href="mailto:dominicc@chromium.org">

5 <script src="../../resources/testharness.js"></script>	5 <script src="../../resources/testharness.js"></script>

6 <script src="../../resources/testharnessreport.js"></script>	6 <script src="../../resources/testharnessreport.js"></script>

7 <script src="resources/custom-elements-helpers.js"></script>	7 <script src="resources/custom-elements-helpers.js"></script>

8 <body>	8 <body>

9 <script>	9 <script>

10 // TODO(dominicc): Merge these tests with	10 // TODO(dominicc): Merge these tests with

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348	348

349 // 14.9.3 If observedAttributesIterable is not undefined, then set observedAttri butes	349 // 14.9.3 If observedAttributesIterable is not undefined, then set observedAttri butes

350 // to the result of converting observedAttributesIterable to a sequence<D OMString>.	350 // to the result of converting observedAttributesIterable to a sequence<D OMString>.

351 // Rethrow any exceptions.	351 // Rethrow any exceptions.

352 test_with_window((w) => {	352 test_with_window((w) => {

353 let invocations = [];	353 let invocations = [];

354 let element = w.document.createElement('a-a');	354 let element = w.document.createElement('a-a');

355 element.setAttribute('a', '1');	355 element.setAttribute('a', '1');

356 element.setAttribute('b', '2');	356 element.setAttribute('b', '2');

357 element.setAttribute('c', '3');	357 element.setAttribute('c', '3');

358 let constructor = function () {};	358 let constructor = function () {

359 constructor.prototype.attributeChangedCallback = function () {	359 return Reflect.construct(w.HTMLElement, [], constructor);

360 invocations.push(arguments[0]);	360 };

	361 constructor.prototype.attributeChangedCallback = function () {

	362 invocations.push(arguments[0]);

361 };	363 };

362 constructor.observedAttributes = {[Symbol.iterator]:	364 constructor.observedAttributes = {[Symbol.iterator]:

363 function* () {	365 function* () {

364 yield 'a';	366 yield 'a';

365 yield 'c';	367 yield 'c';

366 }	368 }

367 };	369 };

368 w.customElements.define('a-a', constructor);	370 w.customElements.define('a-a', constructor);

369 w.document.body.appendChild(element);	371 w.document.body.appendChild(element);

370 assert_array_equals(invocations, ['a', 'c'], 'attributeChangedCallback should be invoked twice for "a" and "c"');	372 assert_array_equals(invocations, ['a', 'c'], 'attributeChangedCallback should be invoked twice: once for "a" and once for "c"');

371 }, 'ObservedAttributes are retrieved from iterators');	373 }, 'ObservedAttributes are retrieved from iterators');

372	374

373 test_with_window((w) => {	375 test_with_window((w) => {

374 let constructor = function () {};	376 let constructor = function () {};

375 constructor.prototype.attributeChangedCallback = function () { };	377 constructor.prototype.attributeChangedCallback = function () { };

376 constructor.observedAttributes = {[Symbol.iterator]: 1};	378 constructor.observedAttributes = {[Symbol.iterator]: 1};

377 assert_throws(TypeError.prototype, () => {	379 assert_throws(TypeError.prototype, () => {

378 w.customElements.define('a-a', constructor);	380 w.customElements.define('a-a', constructor);

379 }, 'converting value that is not an object should throw TypeError');	381 }, 'converting value that is not an object should throw TypeError');

380 }, 'Converting non-object observedAttributes to sequence<DOMString>');	382 }, 'Converting non-object observedAttributes to sequence<DOMString>');

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422 static get observedAttributes() {	424 static get observedAttributes() {

423 return attributes;	425 return attributes;

424 }	426 }

425 }	427 }

426 assert_throws(TypeError.prototype, () => {	428 assert_throws(TypeError.prototype, () => {

427 w.customElements.define('x-x', X);	429 w.customElements.define('x-x', X);

428 });	430 });

429 }, 'Throwing an exception in observedAttributes');	431 }, 'Throwing an exception in observedAttributes');

430 </script>	432 </script>

431 </body>	433 </body>

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