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312 lines
14 KiB
TypeScript
312 lines
14 KiB
TypeScript
/**
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* Copyright (c) Microsoft Corporation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import { contextTest as test, expect } from '../config/browserTest';
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import type { Page } from 'playwright-core';
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import fs from 'fs';
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test.skip(({ mode }) => mode !== 'default');
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async function getNameAndRole(page: Page, selector: string) {
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return await page.$eval(selector, e => {
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const name = (window as any).__injectedScript.getElementAccessibleName(e);
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const role = (window as any).__injectedScript.getAriaRole(e);
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return { name, role };
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});
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}
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const ranges = [
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'name_test_case_539-manual.html',
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'name_test_case_721-manual.html',
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];
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for (let range = 0; range <= ranges.length; range++) {
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test('wpt accname #' + range, async ({ page, asset, server, browserName }) => {
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const skipped = [
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// Spec clearly says to only use control's value when embedded in a label (step 2C).
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'name_heading-combobox-focusable-alternative-manual.html',
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// This test expects ::before + title + ::after, which is neither 2F nor 2I.
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'name_test_case_659-manual.html',
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// This test expects ::before + title + ::after, which is neither 2F nor 2I.
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'name_test_case_660-manual.html',
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];
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if (browserName === 'firefox') {
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// This test contains the following style:
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// [data-after]:after { content: attr(data-after); }
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// In firefox, content is returned as "attr(data-after)"
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// instead of being resolved to the actual value.
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skipped.push('name_test_case_553-manual.html');
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}
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await page.addInitScript(() => {
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const self = window as any;
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self.setup = () => {};
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self.ATTAcomm = class {
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constructor(data) {
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self.steps = [];
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for (const step of data.steps) {
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if (!step.test.ATK)
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continue;
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for (const atk of step.test.ATK) {
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if (atk[0] !== 'property' || atk[1] !== 'name' || atk[2] !== 'is' || typeof atk[3] !== 'string')
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continue;
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self.steps.push({ selector: '#' + step.element, name: atk[3] });
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}
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}
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}
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};
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});
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const testDir = asset('wpt/accname');
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const testFiles = fs.readdirSync(testDir, { withFileTypes: true }).filter(e => e.isFile() && e.name.endsWith('.html')).map(e => e.name);
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for (const testFile of testFiles) {
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if (skipped.includes(testFile))
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continue;
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const included = (range === 0 || testFile >= ranges[range - 1]) && (range === ranges.length || testFile < ranges[range]);
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if (!included)
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continue;
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await test.step(testFile, async () => {
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await page.goto(server.PREFIX + `/wpt/accname/` + testFile);
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// Use $eval to force injected script.
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const result = await page.$eval('body', () => {
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const result = [];
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for (const step of (window as any).steps) {
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const element = document.querySelector(step.selector);
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if (!element)
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throw new Error(`Unable to resolve "${step.selector}"`);
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const received = (window as any).__injectedScript.getElementAccessibleName(element);
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result.push({ selector: step.selector, expected: step.name, received });
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}
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return result;
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});
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for (const { selector, expected, received } of result)
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expect.soft(received, `checking "${selector}" in ${testFile}`).toBe(expected);
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});
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}
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});
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}
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test('axe-core implicit-role', async ({ page, asset, server }) => {
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await page.goto(server.EMPTY_PAGE);
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const testCases = require(asset('axe-core/implicit-role'));
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for (const testCase of testCases) {
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await test.step(`checking ${JSON.stringify(testCase)}`, async () => {
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await page.setContent(`
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<body>
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${testCase.html}
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</body>
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`);
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// Use $eval to force injected script.
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const received = await page.$eval('body', (_, selector) => {
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const element = document.querySelector(selector);
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if (!element)
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throw new Error(`Unable to resolve "${selector}"`);
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return (window as any).__injectedScript.getAriaRole(element);
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}, testCase.target);
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expect.soft(received, `checking ${JSON.stringify(testCase)}`).toBe(testCase.role);
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});
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}
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});
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test('axe-core accessible-text', async ({ page, asset, server }) => {
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await page.goto(server.EMPTY_PAGE);
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const testCases = require(asset('axe-core/accessible-text'));
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for (const testCase of testCases) {
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await test.step(`checking ${JSON.stringify(testCase)}`, async () => {
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await page.setContent(`
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<body>
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${testCase.html}
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</body>
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<script>
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for (const template of document.querySelectorAll("template[shadow]")) {
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const shadowRoot = template.parentElement.attachShadow({ mode: 'open' });
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shadowRoot.appendChild(template.content);
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template.remove();
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}
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</script>
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`);
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// Use $eval to force injected script.
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const targets = toArray(testCase.target);
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const expected = toArray(testCase.accessibleText);
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const received = await page.$eval('body', (_, selectors) => {
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return selectors.map(selector => {
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const injected = (window as any).__injectedScript;
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const element = injected.querySelector(injected.parseSelector('css=' + selector), document, false);
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if (!element)
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throw new Error(`Unable to resolve "${selector}"`);
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return injected.getElementAccessibleName(element);
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});
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}, targets);
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expect.soft(received, `checking ${JSON.stringify(testCase)}`).toEqual(expected);
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});
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}
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});
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test('accessible name with slots', async ({ page }) => {
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// Text "foo" is assigned to the slot, should not be used twice.
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await page.setContent(`
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<button><div>foo</div></button>
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<script>
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(() => {
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const container = document.querySelector('div');
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const shadow = container.attachShadow({ mode: 'open' });
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const slot = document.createElement('slot');
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shadow.appendChild(slot);
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})();
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</script>
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`);
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expect.soft(await getNameAndRole(page, 'button')).toEqual({ role: 'button', name: 'foo' });
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// Text "foo" is assigned to the slot, should be used instead of slot content.
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await page.setContent(`
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<div>foo</div>
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<script>
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(() => {
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const container = document.querySelector('div');
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const shadow = container.attachShadow({ mode: 'open' });
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const button = document.createElement('button');
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shadow.appendChild(button);
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const slot = document.createElement('slot');
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button.appendChild(slot);
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const span = document.createElement('span');
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span.textContent = 'pre';
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slot.appendChild(span);
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})();
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</script>
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`);
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expect.soft(await getNameAndRole(page, 'button')).toEqual({ role: 'button', name: 'foo' });
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// Nothing is assigned to the slot, should use slot content.
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await page.setContent(`
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<div></div>
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<script>
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(() => {
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const container = document.querySelector('div');
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const shadow = container.attachShadow({ mode: 'open' });
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const button = document.createElement('button');
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shadow.appendChild(button);
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const slot = document.createElement('slot');
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button.appendChild(slot);
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const span = document.createElement('span');
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span.textContent = 'pre';
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slot.appendChild(span);
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})();
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</script>
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`);
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expect.soft(await getNameAndRole(page, 'button')).toEqual({ role: 'button', name: 'pre' });
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});
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test('accessible name nested treeitem', async ({ page }) => {
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await page.setContent(`
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<div role=treeitem id=target>
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<span>Top-level</span>
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<div role=group>
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<div role=treeitem><span>Nested 1</span></div>
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<div role=treeitem><span>Nested 2</span></div>
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</div>
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</div>
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`);
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expect.soft(await getNameAndRole(page, '#target')).toEqual({ role: 'treeitem', name: 'Top-level' });
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});
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test('svg title', async ({ page }) => {
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await page.setContent(`
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<div>
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<svg width="162" height="30" viewBox="0 0 162 30" fill="none" xmlns="http://www.w3.org/2000/svg">
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<title>Submit</title>
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<g>
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<title>Hello</title>
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</g>
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<a href="example.com" xlink:title="a link"><circle cx="50" cy="40" r="35" /></a>
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</svg>
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</div>
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`);
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expect.soft(await getNameAndRole(page, 'svg')).toEqual({ role: 'img', name: 'Submit' });
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expect.soft(await getNameAndRole(page, 'g')).toEqual({ role: null, name: 'Hello' });
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expect.soft(await getNameAndRole(page, 'a')).toEqual({ role: 'link', name: 'a link' });
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});
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test('native controls', async ({ page }) => {
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await page.setContent(`
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<label for="text1">TEXT1</label><input id="text1" type=text>
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<input id="text2" type=text title="TEXT2">
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<input id="text3" type=text placeholder="TEXT3">
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<label for="image1">IMAGE1</label><input id="image1" type=image>
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<input id="image2" type=image alt="IMAGE2">
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<label for="image3">IMAGE3</label><input id="image3" type=image alt="MORE3">
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<label for="button1">BUTTON1</label><button id="button1" role="combobox">button</button>
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<button id="button2" role="combobox">BUTTON2</button>
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<button id="button3">BUTTON3</button>
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<button id="button4" title="BUTTON4"></button>
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`);
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expect.soft(await getNameAndRole(page, '#text1')).toEqual({ role: 'textbox', name: 'TEXT1' });
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expect.soft(await getNameAndRole(page, '#text2')).toEqual({ role: 'textbox', name: 'TEXT2' });
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expect.soft(await getNameAndRole(page, '#text3')).toEqual({ role: 'textbox', name: 'TEXT3' });
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expect.soft(await getNameAndRole(page, '#image1')).toEqual({ role: 'button', name: 'IMAGE1' });
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expect.soft(await getNameAndRole(page, '#image2')).toEqual({ role: 'button', name: 'IMAGE2' });
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expect.soft(await getNameAndRole(page, '#image3')).toEqual({ role: 'button', name: 'IMAGE3' });
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expect.soft(await getNameAndRole(page, '#button1')).toEqual({ role: 'combobox', name: 'BUTTON1' });
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expect.soft(await getNameAndRole(page, '#button2')).toEqual({ role: 'combobox', name: '' });
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expect.soft(await getNameAndRole(page, '#button3')).toEqual({ role: 'button', name: 'BUTTON3' });
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expect.soft(await getNameAndRole(page, '#button4')).toEqual({ role: 'button', name: 'BUTTON4' });
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});
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test('native controls labelled-by', async ({ page }) => {
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await page.setContent(`
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<label id="for-text1">TEXT1</label><input aria-labelledby="for-text1" id="text1" type=text>
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<label id="for-text2">TEXT2</label><input aria-labelledby="for-text2 text2" id="text2" type=text>
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<label id="for-text3" for="text3">TEXT3</label><input aria-labelledby="for-text3 text3" id="text3" type=text>
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<label id="for-submit1" for="submit1">SUBMIT1</label><input aria-labelledby="for-submit1 submit1" id="submit1" type=submit>
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<label id="for-image1" for="image1">IMAGE1</label><input aria-labelledby="for-image1 image1" id="image1" type=image alt="MORE1">
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<label id="for-image2" for="image2">IMAGE2</label><img aria-labelledby="for-image2 image2" id="image2" alt="MORE2" src="data:image/svg,<g></g>">
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<label id="for-button1">BUTTON1</label><button aria-labelledby="for-button1" id="button1">MORE1</button>
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<label id="for-button2">BUTTON2</label><button aria-labelledby="for-button2 button2" id="button2">MORE2</button>
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<label id="for-button3" for="button3">BUTTON3</label><button aria-labelledby="for-button3 button3" id="button3">MORE3</button>
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<label id="for-button4" for="button4">BUTTON4</label><button aria-labelledby="for-button4" id="button4">MORE4</button>
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<label id="for-textarea1" for="textarea1">TEXTAREA1</label><textarea aria-labelledby="for-textarea1 textarea1" id="textarea1" placeholder="MORE1">MORE2</textarea>
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`);
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expect.soft(await getNameAndRole(page, '#text1')).toEqual({ role: 'textbox', name: 'TEXT1' });
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expect.soft(await getNameAndRole(page, '#text2')).toEqual({ role: 'textbox', name: 'TEXT2' });
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expect.soft(await getNameAndRole(page, '#text3')).toEqual({ role: 'textbox', name: 'TEXT3' });
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expect.soft(await getNameAndRole(page, '#submit1')).toEqual({ role: 'button', name: 'SUBMIT1 Submit' });
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expect.soft(await getNameAndRole(page, '#image1')).toEqual({ role: 'button', name: 'IMAGE1 MORE1' });
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expect.soft(await getNameAndRole(page, '#image2')).toEqual({ role: 'img', name: 'IMAGE2 MORE2' });
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expect.soft(await getNameAndRole(page, '#button1')).toEqual({ role: 'button', name: 'BUTTON1' });
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expect.soft(await getNameAndRole(page, '#button2')).toEqual({ role: 'button', name: 'BUTTON2 MORE2' });
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expect.soft(await getNameAndRole(page, '#button3')).toEqual({ role: 'button', name: 'BUTTON3 MORE3' });
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expect.soft(await getNameAndRole(page, '#button4')).toEqual({ role: 'button', name: 'BUTTON4' });
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expect.soft(await getNameAndRole(page, '#textarea1')).toEqual({ role: 'textbox', name: 'TEXTAREA1 MORE2' });
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});
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test('display:contents should be visible when contents are visible', async ({ page }) => {
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await page.setContent(`
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<button style='display: contents;'>yo</button>
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`);
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await expect(page.getByRole('button')).toHaveCount(1);
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});
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function toArray(x: any): any[] {
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return Array.isArray(x) ? x : [x];
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}
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