playwright/test/focus.spec.js

/**
 * Copyright Microsoft Corporation. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

const {FFOX, CHROMIUM, WEBKIT} = require('./utils').testOptions(browserType);

describe('Page.focus', function() {
  it('should work', async function({page, server}) {
    await page.setContent(`<div id=d1 tabIndex=0></div>`);
    expect(await page.evaluate(() => document.activeElement.nodeName)).toBe('BODY');
    await page.focus('#d1');
    expect(await page.evaluate(() => document.activeElement.id)).toBe('d1');
  });
  it('should emit focus event', async function({page, server}) {
    await page.setContent(`<div id=d1 tabIndex=0></div>`);
    let focused = false;
    await page.exposeFunction('focusEvent', () => focused = true);
    await page.evaluate(() => d1.addEventListener('focus', focusEvent));
    await page.focus('#d1');
    expect(focused).toBe(true);
  });
  it('should emit blur event', async function({page, server}) {
    await page.setContent(`<div id=d1 tabIndex=0>DIV1</div><div id=d2 tabIndex=0>DIV2</div>`);
    await page.focus('#d1');
    let focused = false;
    let blurred = false;
    await page.exposeFunction('focusEvent', () => focused = true);
    await page.exposeFunction('blurEvent', () => blurred = true);
    await page.evaluate(() => d1.addEventListener('blur', blurEvent));
    await page.evaluate(() => d2.addEventListener('focus', focusEvent));
    await page.focus('#d2');
    expect(focused).toBe(true);
    expect(blurred).toBe(true);
  });
});