puppeteer/test/keyboard.spec.js

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/**
* Copyright 2018 Google Inc. 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 utils = require('./utils');
const os = require('os');
const expect = require('expect');
const {getTestState,setupTestBrowserHooks,setupTestPageAndContextHooks} = require('./mocha-utils');
describe('Keyboard', function() {
setupTestBrowserHooks();
setupTestPageAndContextHooks();
it('should type into a textarea', async() => {
const {page} = getTestState();
await page.evaluate(() => {
const textarea = document.createElement('textarea');
document.body.appendChild(textarea);
textarea.focus();
});
const text = 'Hello world. I am the text that was typed!';
await page.keyboard.type(text);
expect(await page.evaluate(() => document.querySelector('textarea').value)).toBe(text);
});
itFailsFirefox('should press the metaKey', async() => {
const {page, isFirefox} = getTestState();
await page.evaluate(() => {
window.keyPromise = new Promise(resolve => document.addEventListener('keydown', event => resolve(event.key)));
});
await page.keyboard.press('Meta');
expect(await page.evaluate('keyPromise')).toBe(isFirefox && os.platform() !== 'darwin' ? 'OS' : 'Meta');
});
it('should move with the arrow keys', async() => {
const {page, server} = getTestState();
await page.goto(server.PREFIX + '/input/textarea.html');
await page.type('textarea', 'Hello World!');
expect(await page.evaluate(() => document.querySelector('textarea').value)).toBe('Hello World!');
for (let i = 0; i < 'World!'.length; i++)
page.keyboard.press('ArrowLeft');
await page.keyboard.type('inserted ');
expect(await page.evaluate(() => document.querySelector('textarea').value)).toBe('Hello inserted World!');
page.keyboard.down('Shift');
for (let i = 0; i < 'inserted '.length; i++)
page.keyboard.press('ArrowLeft');
page.keyboard.up('Shift');
await page.keyboard.press('Backspace');
expect(await page.evaluate(() => document.querySelector('textarea').value)).toBe('Hello World!');
});
it('should send a character with ElementHandle.press', async() => {
const {page, server} = getTestState();
await page.goto(server.PREFIX + '/input/textarea.html');
const textarea = await page.$('textarea');
await textarea.press('a');
expect(await page.evaluate(() => document.querySelector('textarea').value)).toBe('a');
await page.evaluate(() => window.addEventListener('keydown', e => e.preventDefault(), true));
await textarea.press('b');
expect(await page.evaluate(() => document.querySelector('textarea').value)).toBe('a');
});
itFailsFirefox('ElementHandle.press should support |text| option', async() => {
const {page, server} = getTestState();
await page.goto(server.PREFIX + '/input/textarea.html');
const textarea = await page.$('textarea');
await textarea.press('a', {text: 'ё'});
expect(await page.evaluate(() => document.querySelector('textarea').value)).toBe('ё');
});
itFailsFirefox('should send a character with sendCharacter', async() => {
const {page, server} = getTestState();
await page.goto(server.PREFIX + '/input/textarea.html');
await page.focus('textarea');
await page.keyboard.sendCharacter('嗨');
expect(await page.evaluate(() => document.querySelector('textarea').value)).toBe('嗨');
await page.evaluate(() => window.addEventListener('keydown', e => e.preventDefault(), true));
await page.keyboard.sendCharacter('a');
expect(await page.evaluate(() => document.querySelector('textarea').value)).toBe('嗨a');
});
itFailsFirefox('should report shiftKey', async() => {
const {page, server} = getTestState();
await page.goto(server.PREFIX + '/input/keyboard.html');
const keyboard = page.keyboard;
const codeForKey = {'Shift': 16, 'Alt': 18, 'Control': 17};
for (const modifierKey in codeForKey) {
await keyboard.down(modifierKey);
expect(await page.evaluate(() => getResult())).toBe('Keydown: ' + modifierKey + ' ' + modifierKey + 'Left ' + codeForKey[modifierKey] + ' [' + modifierKey + ']');
await keyboard.down('!');
// Shift+! will generate a keypress
if (modifierKey === 'Shift')
expect(await page.evaluate(() => getResult())).toBe('Keydown: ! Digit1 49 [' + modifierKey + ']\nKeypress: ! Digit1 33 33 [' + modifierKey + ']');
else
expect(await page.evaluate(() => getResult())).toBe('Keydown: ! Digit1 49 [' + modifierKey + ']');
await keyboard.up('!');
expect(await page.evaluate(() => getResult())).toBe('Keyup: ! Digit1 49 [' + modifierKey + ']');
await keyboard.up(modifierKey);
expect(await page.evaluate(() => getResult())).toBe('Keyup: ' + modifierKey + ' ' + modifierKey + 'Left ' + codeForKey[modifierKey] + ' []');
}
});
it('should report multiple modifiers', async() => {
const {page, server} = getTestState();
await page.goto(server.PREFIX + '/input/keyboard.html');
const keyboard = page.keyboard;
await keyboard.down('Control');
expect(await page.evaluate(() => getResult())).toBe('Keydown: Control ControlLeft 17 [Control]');
await keyboard.down('Alt');
expect(await page.evaluate(() => getResult())).toBe('Keydown: Alt AltLeft 18 [Alt Control]');
await keyboard.down(';');
expect(await page.evaluate(() => getResult())).toBe('Keydown: ; Semicolon 186 [Alt Control]');
await keyboard.up(';');
expect(await page.evaluate(() => getResult())).toBe('Keyup: ; Semicolon 186 [Alt Control]');
await keyboard.up('Control');
expect(await page.evaluate(() => getResult())).toBe('Keyup: Control ControlLeft 17 [Alt]');
await keyboard.up('Alt');
expect(await page.evaluate(() => getResult())).toBe('Keyup: Alt AltLeft 18 []');
});
it('should send proper codes while typing', async() => {
const {page, server} = getTestState();
await page.goto(server.PREFIX + '/input/keyboard.html');
await page.keyboard.type('!');
expect(await page.evaluate(() => getResult())).toBe(
[ 'Keydown: ! Digit1 49 []',
'Keypress: ! Digit1 33 33 []',
'Keyup: ! Digit1 49 []'].join('\n'));
await page.keyboard.type('^');
expect(await page.evaluate(() => getResult())).toBe(
[ 'Keydown: ^ Digit6 54 []',
'Keypress: ^ Digit6 94 94 []',
'Keyup: ^ Digit6 54 []'].join('\n'));
});
it('should send proper codes while typing with shift', async() => {
const {page, server} = getTestState();
await page.goto(server.PREFIX + '/input/keyboard.html');
const keyboard = page.keyboard;
await keyboard.down('Shift');
await page.keyboard.type('~');
expect(await page.evaluate(() => getResult())).toBe(
[ 'Keydown: Shift ShiftLeft 16 [Shift]',
'Keydown: ~ Backquote 192 [Shift]', // 192 is ` keyCode
'Keypress: ~ Backquote 126 126 [Shift]', // 126 is ~ charCode
'Keyup: ~ Backquote 192 [Shift]'].join('\n'));
await keyboard.up('Shift');
});
it('should not type canceled events', async() => {
const {page, server} = getTestState();
await page.goto(server.PREFIX + '/input/textarea.html');
await page.focus('textarea');
await page.evaluate(() => {
window.addEventListener('keydown', event => {
event.stopPropagation();
event.stopImmediatePropagation();
if (event.key === 'l')
event.preventDefault();
if (event.key === 'o')
event.preventDefault();
}, false);
});
await page.keyboard.type('Hello World!');
expect(await page.evaluate(() => textarea.value)).toBe('He Wrd!');
});
itFailsFirefox('should specify repeat property', async() => {
const {page, server} = getTestState();
await page.goto(server.PREFIX + '/input/textarea.html');
await page.focus('textarea');
await page.evaluate(() => document.querySelector('textarea').addEventListener('keydown', e => window.lastEvent = e, true));
await page.keyboard.down('a');
expect(await page.evaluate(() => window.lastEvent.repeat)).toBe(false);
await page.keyboard.press('a');
expect(await page.evaluate(() => window.lastEvent.repeat)).toBe(true);
await page.keyboard.down('b');
expect(await page.evaluate(() => window.lastEvent.repeat)).toBe(false);
await page.keyboard.down('b');
expect(await page.evaluate(() => window.lastEvent.repeat)).toBe(true);
await page.keyboard.up('a');
await page.keyboard.down('a');
expect(await page.evaluate(() => window.lastEvent.repeat)).toBe(false);
});
itFailsFirefox('should type all kinds of characters', async() => {
const {page, server} = getTestState();
await page.goto(server.PREFIX + '/input/textarea.html');
await page.focus('textarea');
const text = 'This text goes onto two lines.\nThis character is 嗨.';
await page.keyboard.type(text);
expect(await page.evaluate('result')).toBe(text);
});
itFailsFirefox('should specify location', async() => {
const {page, server} = getTestState();
await page.goto(server.PREFIX + '/input/textarea.html');
await page.evaluate(() => {
window.addEventListener('keydown', event => window.keyLocation = event.location, true);
});
const textarea = await page.$('textarea');
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await textarea.press('Digit5');
expect(await page.evaluate('keyLocation')).toBe(0);
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await textarea.press('ControlLeft');
expect(await page.evaluate('keyLocation')).toBe(1);
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await textarea.press('ControlRight');
expect(await page.evaluate('keyLocation')).toBe(2);
await textarea.press('NumpadSubtract');
expect(await page.evaluate('keyLocation')).toBe(3);
});
it('should throw on unknown keys', async() => {
const {page} = getTestState();
let error = await page.keyboard.press('NotARealKey').catch(e => e);
expect(error.message).toBe('Unknown key: "NotARealKey"');
error = await page.keyboard.press('ё').catch(e => e);
expect(error && error.message).toBe('Unknown key: "ё"');
error = await page.keyboard.press('😊').catch(e => e);
expect(error && error.message).toBe('Unknown key: "😊"');
});
itFailsFirefox('should type emoji', async() => {
const {page, server} = getTestState();
await page.goto(server.PREFIX + '/input/textarea.html');
await page.type('textarea', '👹 Tokyo street Japan 🇯🇵');
expect(await page.$eval('textarea', textarea => textarea.value)).toBe('👹 Tokyo street Japan 🇯🇵');
});
itFailsFirefox('should type emoji into an iframe', async() => {
const {page, server} = getTestState();
await page.goto(server.EMPTY_PAGE);
await utils.attachFrame(page, 'emoji-test', server.PREFIX + '/input/textarea.html');
const frame = page.frames()[1];
const textarea = await frame.$('textarea');
await textarea.type('👹 Tokyo street Japan 🇯🇵');
expect(await frame.$eval('textarea', textarea => textarea.value)).toBe('👹 Tokyo street Japan 🇯🇵');
});
itFailsFirefox('should press the meta key', async() => {
const {page, isFirefox} = getTestState();
await page.evaluate(() => {
window.result = null;
document.addEventListener('keydown', event => {
window.result = [event.key, event.code, event.metaKey];
});
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});
await page.keyboard.press('Meta');
const [key, code, metaKey] = await page.evaluate('result');
if (isFirefox && os.platform() !== 'darwin')
expect(key).toBe('OS');
else
expect(key).toBe('Meta');
if (isFirefox)
expect(code).toBe('OSLeft');
else
expect(code).toBe('MetaLeft');
if (isFirefox && os.platform() !== 'darwin')
expect(metaKey).toBe(false);
else
expect(metaKey).toBe(true);
});
});