/**
* @license
* Copyright 2017 Google Inc.
* SPDX-License-Identifier: Apache-2.0
*/
import path from 'path' ;
import expect from 'expect' ;
import {TimeoutError} from 'puppeteer' ;
import {getTestState, setupTestBrowserHooks} from './mocha-utils.js' ;
import {waitEvent} from './utils.js' ;
const FILE_TO_UPLOAD = path.join(__dirname, '/../assets/file-to-upload.txt' );
describe('input tests' , function () {
setupTestBrowserHooks();
describe('ElementHandle.uploadFile' , function () {
it('should upload the file' , async () => {
const {page, server} = await getTestState();
await page.goto (server.PREFIX + '/input/fileupload.html' );
using input = (await page.$('input' ))!;
await input.evaluate(e => {
(globalThis as any)._inputEvents = [];
e.addEventListener('change' , ev => {
return (globalThis as any)._inputEvents.push(ev.type);
});
e.addEventListener('input' , ev => {
return (globalThis as any)._inputEvents.push(ev.type);
});
});
const file = path.relative(process.cwd(), FILE_TO_UPLOAD);
await input.uploadFile(file);
expect(
await input.evaluate(e => {
return e.files?.[0 ]?.name;
}),
).toBe('file-to-upload.txt' );
expect(
await input.evaluate(e => {
return e.files?.[0 ]?.type;
}),
).toBe('text/plain' );
expect(
await page.evaluate(() => {
return (globalThis as any)._inputEvents;
}),
).toEqual(['input' , 'change' ]);
});
it('should read the file' , async () => {
const {page, server} = await getTestState();
await page.goto (server.PREFIX + '/input/fileupload.html' );
using input = (await page.$('input' ))!;
await input.evaluate(e => {
(globalThis as any)._inputEvents = [];
e.addEventListener('change' , ev => {
return (globalThis as any)._inputEvents.push(ev.type);
});
e.addEventListener('input' , ev => {
return (globalThis as any)._inputEvents.push(ev.type);
});
});
const file = path.relative(process.cwd(), FILE_TO_UPLOAD);
await input.uploadFile(file);
expect(
await input.evaluate(e => {
const file = e.files?.[0 ];
if (!file) {
throw new Error('No file found' );
}
const reader = new FileReader();
const promise = new Promise(fulfill => {
reader.addEventListener('load' , fulfill);
});
reader.readAsText(file);
return promise.then(() => {
return reader.result;
});
}),
).toBe('contents of the file' );
});
});
describe('Page.waitForFileChooser' , function () {
it('should work when file input is attached to DOM' , async () => {
const {page} = await 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} = await 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} = await getTestState();
let error!: Error;
await page.waitForFileChooser({timeout: 1 }).catch (error_ => {
return (error = error_);
});
expect(error).toBeInstanceOf(TimeoutError);
});
it('should respect default timeout when there is no custom timeout' , async () => {
const {page} = await getTestState();
page.setDefaultTimeout(1 );
let error!: Error;
await page.waitForFileChooser().catch (error_ => {
return (error = error_);
});
expect(error).toBeInstanceOf(TimeoutError);
});
it('should prioritize exact timeout over default timeout' , async () => {
const {page} = await getTestState();
page.setDefaultTimeout(0 );
let error!: Error;
await page.waitForFileChooser({timeout: 1 }).catch (error_ => {
return (error = error_);
});
expect(error).toBeInstanceOf(TimeoutError);
});
it('should work with no timeout' , async () => {
const {page} = await getTestState();
const [chooser] = await Promise.all([
page.waitForFileChooser({timeout: 0 }),
page.evaluate(() => {
return 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} = await getTestState();
await page.setContent(`<input type=file>`);
const [fileChooser1, fileChooser2] = await Promise.all([
page.waitForFileChooser(),
page.waitForFileChooser(),
page.$eval('input' , input => {
return input.click();
}),
]);
expect(fileChooser1 === fileChooser2).toBe(true );
});
it('should be able to abort' , async () => {
const {page} = await getTestState();
const abortController = new AbortController();
const task = page.waitForFileChooser({signal: abortController.signal});
abortController.abort();
await expect(task).rejects.toThrow(/aborted/);
});
});
describe('FileChooser.accept' , function () {
it('should accept single file' , async () => {
const {page} = await getTestState();
await page.setContent(
`<input type=file oninput='javascript:console.timeStamp()' >`,
);
const [chooser] = await Promise.all([
page.waitForFileChooser(),
page.click('input' ),
]);
await Promise.all([
chooser.accept([FILE_TO_UPLOAD]),
waitEvent(page, 'metrics' ),
]);
expect(
await page.$eval('input' , input => {
return input.files!.length;
}),
).toBe(1 );
expect(
await page.$eval('input' , input => {
return input.files![0 ]!.name;
}),
).toBe('file-to-upload.txt' );
});
it('should be able to read selected file' , async () => {
const {page} = await getTestState();
await page.setContent(`<input type=file>`);
void page.waitForFileChooser().then(chooser => {
return chooser.accept([FILE_TO_UPLOAD]);
});
expect(
await page.$eval('input' , async pick => {
pick.click();
await new Promise(x => {
return (pick.oninput = x);
});
const reader = new FileReader();
const promise = new Promise(fulfill => {
return (reader.onload = fulfill);
});
reader.readAsText(pick.files![0 ]!);
return await promise.then(() => {
return reader.result;
});
}),
).toBe('contents of the file' );
});
it('should be able to reset selected files with empty file list' , async () => {
const {page} = await getTestState();
await page.setContent(`<input type=file>`);
void page.waitForFileChooser().then(chooser => {
return chooser.accept([FILE_TO_UPLOAD]);
});
expect(
await page.$eval('input' , async pick => {
pick.click();
await new Promise(x => {
return (pick.oninput = x);
});
return pick.files!.length;
}),
).toBe(1 );
void page.waitForFileChooser().then(chooser => {
return chooser.accept([]);
});
expect(
await page.$eval('input' , async pick => {
pick.click();
await new Promise(x => {
return (pick.oninput = x);
});
return pick.files!.length;
}),
).toBe(0 );
});
it('should not accept multiple files for single-file input' , async () => {
const {page} = await getTestState();
await page.setContent(`<input type=file>`);
const [chooser] = await Promise.all([
page.waitForFileChooser(),
page.click('input' ),
]);
let error!: Error;
await chooser
.accept([
path.relative(
process.cwd(),
__dirname + '/../assets/file-to-upload.txt' ,
),
path.relative(process.cwd(), __dirname + '/../assets/pptr.png' ),
])
.catch (error_ => {
return (error = error_);
});
expect(error).not.toBe(null );
});
it('should succeed even for non-existent files' , async () => {
const {page} = await getTestState();
await page.setContent(`<input type=file>`);
const [chooser] = await Promise.all([
page.waitForFileChooser(),
page.click('input' ),
]);
let error!: Error;
await chooser.accept(['file-does-not-exist.txt' ]).catch (error_ => {
return (error = error_);
});
expect(error).toBeUndefined();
});
it('should error on read of non-existent files' , async () => {
const {page} = await getTestState();
await page.setContent(`<input type=file>`);
void page.waitForFileChooser().then(chooser => {
return chooser.accept(['file-does-not-exist.txt' ]);
});
expect(
await page.$eval('input' , async pick => {
pick.click();
await new Promise(x => {
return (pick.oninput = x);
});
const reader = new FileReader();
const promise = new Promise(fulfill => {
return (reader.onerror = fulfill);
});
reader.readAsText(pick.files![0 ]!);
return await promise.then(() => {
return false ;
});
}),
).toBeFalsy();
});
it('should fail when accepting file chooser twice' , async () => {
const {page} = await getTestState();
await page.setContent(`<input type=file>`);
const [fileChooser] = await Promise.all([
page.waitForFileChooser(),
page.$eval('input' , input => {
return input.click();
}),
]);
await fileChooser.accept([]);
let error!: Error;
await fileChooser.accept([]).catch (error_ => {
return (error = error_);
});
expect(error.message).toBe(
'Cannot accept FileChooser which is already handled!' ,
);
});
});
describe('FileChooser.cancel' , function () {
it('should cancel dialog' , async () => {
const {page} = await 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.$eval('input' , input => {
return input.click();
}),
]);
await fileChooser1.cancel();
// If this resolves, than we successfully canceled file chooser.
await Promise.all([
page.waitForFileChooser(),
page.$eval('input' , input => {
return input.click();
}),
]);
});
it('should fail when canceling file chooser twice' , async () => {
const {page} = await getTestState();
await page.setContent(`<input type=file>`);
const [fileChooser] = await Promise.all([
page.waitForFileChooser(),
page.$eval('input' , input => {
return input.click();
}),
]);
await fileChooser.cancel();
let error!: Error;
try {
await fileChooser.cancel();
} catch (error_) {
error = error_ as Error;
}
expect(error.message).toBe(
'Cannot cancel FileChooser which is already handled!' ,
);
});
});
describe('FileChooser.isMultiple' , () => {
it('should work for single file pick' , async () => {
const {page} = await 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} = await 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} = await getTestState();
await page.setContent(`<input multiple webkitdirectory type=file>`);
const [chooser] = await Promise.all([
page.waitForFileChooser(),
page.click('input' ),
]);
expect(chooser.isMultiple()).toBe(true );
});
});
});
Messung V0.5 in Prozent C=98 H=90 G=94
¤ Dauer der Verarbeitung: 0.12 Sekunden
(vorverarbeitet am 2026-06-04)
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