puppeteer/test/input.spec.js

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/**
* Copyright 2017 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 path = require('path');
const expect = require('expect');
const {getTestState,setupTestBrowserHooks,setupTestPageAndContextHooks} = require('./mocha-utils');
const FILE_TO_UPLOAD = path.join(__dirname, '/assets/file-to-upload.txt');
describe('input tests', function() {
setupTestBrowserHooks();
setupTestPageAndContextHooks();
describeFailsFirefox('input', function() {
it('should upload the file', async() => {
const { page, server } = getTestState();
await page.goto(server.PREFIX + '/input/fileupload.html');
const filePath = path.relative(process.cwd(), FILE_TO_UPLOAD);
const input = await page.$('input');
await page.evaluate(e => {
window._inputEvents = [];
e.addEventListener('change', ev => window._inputEvents.push(ev.type));
e.addEventListener('input', ev => window._inputEvents.push(ev.type));
}, input);
await input.uploadFile(filePath);
expect(await page.evaluate(e => e.files[0].name, input)).toBe('file-to-upload.txt');
expect(await page.evaluate(e => e.files[0].type, input)).toBe('text/plain');
expect(await page.evaluate(() => window._inputEvents)).toEqual(['input', 'change']);
expect(await page.evaluate(e => {
const reader = new FileReader();
const promise = new Promise(fulfill => reader.onload = fulfill);
reader.readAsText(e.files[0]);
return promise.then(() => reader.result);
}, input)).toBe('contents of the file');
});
});
describeFailsFirefox('Page.waitForFileChooser', function() {
it('should work when file input is attached to DOM', async() => {
const { page } = getTestState();
await page.setContent(`<input type=file>`);
const [chooser] = await Promise.all([
page.waitForFileChooser(),
page.click('input'),
]);
expect(chooser).toBeTruthy();
});
it('should work when file input is not attached to DOM', async() => {
const { page } = getTestState();
const [chooser] = await Promise.all([
page.waitForFileChooser(),
page.evaluate(() => {
const el = document.createElement('input');
el.type = 'file';
el.click();
}),
]);
expect(chooser).toBeTruthy();
});
it('should respect timeout', async() => {
const { page, puppeteer } = getTestState();
let error = null;
await page.waitForFileChooser({timeout: 1}).catch(e => error = e);
expect(error).toBeInstanceOf(puppeteer.errors.TimeoutError);
});
it('should respect default timeout when there is no custom timeout', async() => {
const { page, puppeteer } = getTestState();
page.setDefaultTimeout(1);
let error = null;
await page.waitForFileChooser().catch(e => error = e);
expect(error).toBeInstanceOf(puppeteer.errors.TimeoutError);
});
it('should prioritize exact timeout over default timeout', async() => {
const { page, puppeteer } = getTestState();
page.setDefaultTimeout(0);
let error = null;
await page.waitForFileChooser({timeout: 1}).catch(e => error = e);
expect(error).toBeInstanceOf(puppeteer.errors.TimeoutError);
});
it('should work with no timeout', async() => {
const { page } = getTestState();
const [chooser] = await Promise.all([
page.waitForFileChooser({timeout: 0}),
page.evaluate(() => setTimeout(() => {
const el = document.createElement('input');
el.type = 'file';
el.click();
}, 50))
]);
expect(chooser).toBeTruthy();
});
it('should return the same file chooser when there are many watchdogs simultaneously', async() => {
const { page } = getTestState();
await page.setContent(`<input type=file>`);
const [fileChooser1, fileChooser2] = await Promise.all([
page.waitForFileChooser(),
page.waitForFileChooser(),
page.$eval('input', input => input.click()),
]);
expect(fileChooser1 === fileChooser2).toBe(true);
});
});
describeFailsFirefox('FileChooser.accept', function() {
it('should accept single file', async() => {
const { page } = getTestState();
await page.setContent(`<input type=file oninput='javascript:console.timeStamp()'>`);
const [chooser] = await Promise.all([
page.waitForFileChooser(),
page.click('input'),
]);
await Promise.all([
chooser.accept([FILE_TO_UPLOAD]),
new Promise(x => page.once('metrics', x)),
]);
expect(await page.$eval('input', input => input.files.length)).toBe(1);
expect(await page.$eval('input', input => input.files[0].name)).toBe('file-to-upload.txt');
});
it('should be able to read selected file', async() => {
const { page } = getTestState();
await page.setContent(`<input type=file>`);
page.waitForFileChooser().then(chooser => chooser.accept([FILE_TO_UPLOAD]));
expect(await page.$eval('input', async picker => {
picker.click();
await new Promise(x => picker.oninput = x);
const reader = new FileReader();
const promise = new Promise(fulfill => reader.onload = fulfill);
reader.readAsText(picker.files[0]);
return promise.then(() => reader.result);
})).toBe('contents of the file');
});
it('should be able to reset selected files with empty file list', async() => {
const { page } = getTestState();
await page.setContent(`<input type=file>`);
page.waitForFileChooser().then(chooser => chooser.accept([FILE_TO_UPLOAD]));
expect(await page.$eval('input', async picker => {
picker.click();
await new Promise(x => picker.oninput = x);
return picker.files.length;
})).toBe(1);
page.waitForFileChooser().then(chooser => chooser.accept([]));
expect(await page.$eval('input', async picker => {
picker.click();
await new Promise(x => picker.oninput = x);
return picker.files.length;
})).toBe(0);
});
it('should not accept multiple files for single-file input', async() => {
const { page } = getTestState();
await page.setContent(`<input type=file>`);
const [chooser] = await Promise.all([
page.waitForFileChooser(),
page.click('input'),
]);
let error = null;
await chooser.accept([
path.relative(process.cwd(), __dirname + '/assets/file-to-upload.txt'),
path.relative(process.cwd(), __dirname + '/assets/pptr.png'),
]).catch(e => error = e);
expect(error).not.toBe(null);
});
it('should fail when accepting file chooser twice', async() => {
const { page } = getTestState();
await page.setContent(`<input type=file>`);
const [fileChooser] = await Promise.all([
page.waitForFileChooser(),
page.$eval('input', input => input.click()),
]);
await fileChooser.accept([]);
let error = null;
await fileChooser.accept([]).catch(e => error = e);
expect(error.message).toBe('Cannot accept FileChooser which is already handled!');
});
});
describeFailsFirefox('FileChooser.cancel', function() {
it('should cancel dialog', async() => {
const { page } = getTestState();
// Consider file chooser canceled if we can summon another one.
// There's no reliable way in WebPlatform to see that FileChooser was
// canceled.
await page.setContent(`<input type=file>`);
const [fileChooser1] = await Promise.all([
page.waitForFileChooser(),
page.$eval('input', input => input.click()),
]);
await fileChooser1.cancel();
// If this resolves, than we successfully canceled file chooser.
await Promise.all([
page.waitForFileChooser(),
page.$eval('input', input => input.click()),
]);
});
it('should fail when canceling file chooser twice', async() => {
const { page } = getTestState();
await page.setContent(`<input type=file>`);
const [fileChooser] = await Promise.all([
page.waitForFileChooser(),
page.$eval('input', input => input.click()),
]);
await fileChooser.cancel();
let error = null;
await fileChooser.cancel().catch(e => error = e);
expect(error.message).toBe('Cannot cancel FileChooser which is already handled!');
});
});
describeFailsFirefox('FileChooser.isMultiple', () => {
it('should work for single file pick', async() => {
const { page } = getTestState();
await page.setContent(`<input type=file>`);
const [chooser] = await Promise.all([
page.waitForFileChooser(),
page.click('input'),
]);
expect(chooser.isMultiple()).toBe(false);
});
it('should work for "multiple"', async() => {
const { page } = getTestState();
await page.setContent(`<input multiple type=file>`);
const [chooser] = await Promise.all([
page.waitForFileChooser(),
page.click('input'),
]);
expect(chooser.isMultiple()).toBe(true);
});
it('should work for "webkitdirectory"', async() => {
const { page } = getTestState();
await page.setContent(`<input multiple webkitdirectory type=file>`);
const [chooser] = await Promise.all([
page.waitForFileChooser(),
page.click('input'),
]);
expect(chooser.isMultiple()).toBe(true);
});
});
});