third_party/WebKit/LayoutTests/custom-elements/imports/sync-create-element-order.html - Issue 2242743002: Make custom elements work in HTML imports

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Side by Side Diff: third_party/WebKit/LayoutTests/custom-elements/imports/sync-create-element-order.html

Issue 2242743002: Make custom elements work in HTML imports (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Addresses tkent's comments. Created 4 years, 4 months ago

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	1 <!DOCTYPE html>

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

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

	4 <script>

	5 'use strict';

	6

	7 let reactions = [];

	8

	9 let test = async_test('Constructor should run in the order elements are created' );

	10

	11 test.step(() => {

	12 customElements.define('x-x', class extends HTMLElement {

	13 constructor() {

	14 super();

	15 reactions.push(this);

	16 }

	17 });

	18 assert_array_equals(reactions, [], 'Should not have parsed <x-x> yet');

	19 });

	20 </script>

	21

	22 <x-x></x-x>

	23

	24 <script>

	25 'use strict';

	26

	27 test.step(() => {

	28 assert_equals(reactions.length, 1, 'Parser should invoke the custom element co nstructor');

	29 });

	30

	31 let import1 = document.createElement('link');

	32 import1.rel = 'import';

	33 import1.href = 'resources/import-custom.html';

	34

	35 // TODO(kochi): crbug.com/640465 synchronous creation fails in imports.

	36 import1.onload = test.step_func_done(() => {

	37 let elementsInMaster = document.querySelector('x-x');

	38 let elementsInImport = import1.import.querySelector('x-x');

	39

	40 assert_array_equals(reactions, [elementsInMaster, elementsInImport],

	41 'Constructor should run in the order elements are created' );

	42 });

	43

	44 document.head.appendChild(import1);

	45 </script>

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