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How to use setInputFiles method in Playwright Internal

Best JavaScript code snippet using playwright-internal

Setting.js

...57    getBase64(file)58      .then((result) => {59        file["base64"] = result;60        // console.log("File Is", file);61        setInputFiles({62          base64URL: result,63          file,64        });65      })66      .catch((err) => {67        console.log(err);68      });69    setInputFiles({70      file: e.target.files[0],71    });72  };73  const handleSave = () => {74    // console.log(inputFiles?.base64URL);75    const file = Math.round(inputFiles?.file?.size / 1024);76    if (file >= 100) {77      //less than 100kb78      setFileSizeError(true);79      setInputFiles({80        file: null,81        base64URL: "",82      });83      setErrorMessage("Image size must be less than 100 KB");84    } else if (inputFiles?.base64URL !== "" && inputFiles?.base64URL !== undefined ) {85      var formData = new FormData();86      formData.append("signatureImage", inputFiles?.base64URL);87      formData.append("id", user.id);88      axios89        .post("https://atlas-admin.keystonefunding.com/api/user/update", formData)90        .then((res) => {91          setErrorMessage("");92          setFileSizeError(false);93          console.log("file accepted");94          // console.log("res -->", res);95          setInputFiles({96            file: null,97            base64URL: "",98          });99          getUser();100          ref.current.value = "";101        })102        .catch((err) => {103          console.log("err --->", err);104        });105    }106  };107  return (108    <div className="maindiv">109      <div className="setting-page">...

data.js

Source: data.js

...29    if (action.serverFileReference !== null) field.value = action.serverFileReference;30    // store file item in file input31    if (!root.query('SHOULD_UPDATE_FILE_INPUT')) return;32    const fileItem = root.query('GET_ITEM', action.id);33    setInputFiles(field, [fileItem.file]);34};35const didPrepareOutput = ({ root, action }) => {36    // this timeout pushes the handler after 'load'37    if (!root.query('SHOULD_UPDATE_FILE_INPUT')) return;38    setTimeout(() => {39        const field = getField(root, action.id);40        if (!field) return;41        setInputFiles(field, [action.file]);42    }, 0);43};44const didSetDisabled = ({ root }) => {45    root.element.disabled = root.query('GET_DISABLED');46};47const didRemoveItem = ({ root, action }) => {48    const field = getField(root, action.id);49    if (!field) return;50    if (field.parentNode) field.parentNode.removeChild(field);51    delete root.ref.fields[action.id];52};53// only runs for server files (so doesn't deal with file input)54const didDefineValue = ({ root, action }) => {55    const field = getField(root, action.id);...

test.mjs

Source: test.mjs

...22  input.type = 'file'23  const file = new window.File([], 'test.txt', {type: 'text/plain'})24  const {files: initialFiles} = input25  const {constructor} = initialFiles26  window.setInputFiles(input, [file, file])27  const {files: testFiles} = input28  window.setInputFiles(input, [])29  const {files: emptyFiles} = input30  return {31    'initial files length': initialFiles.length === 0,32    'test files constructor': testFiles.constructor === constructor,33    'test files length': testFiles.length === 2,34    'test files item': testFiles.item(1) === file,35    'empty files': emptyFiles.length === 0,36  }37}38async function testEsm(page, file) {39  const server = await createTestServer()40  server.get('/', (request, response) => {41    response.type('text/html')42    response.end(`...

input-file-container.js

Source: input-file-container.js

...16    const { name } = e.currentTarget.dataset;17    const index = inputFiles.findIndex((file) => file.name === name);18    const updatedFiles = [...inputFiles];19    updatedFiles.splice(index, 1);20    setInputFiles(updatedFiles);21    if (onChange) {22      onChange(e, id, updatedFiles);23    }24  };25  const handleChange = (e) => {26    const files = Array.from(e.currentTarget.files);27    setInputFiles(files);28    setInputWarning('');29    if (onChange) {30      onChange(e, id, files);31    }32  };33  useEffect(() => {34    setInputFiles(value);35    setInputWarning('');36  }, [value]);37  useEffect(() => {38    setInputWarning(warning);39  }, [warning]);40  return (41    <InputFile42      files={inputFiles}43      inputID={inputID}44      handleChange={handleChange}45      removeFile={removeFile}46      warning={inputWarning}47      {...props}48    />...

updateFunctions.js

Source: updateFunctions.js

...20    setPageImagesArray([...temp])21}else if(whichArray==='input'){22    let temp=[...inputFiles]23    temp.splice(index,1);24    setInputFiles([...temp])25}26} 27export function handleSubmit(e,filesArray,id,navigate){28e.preventDefault();29const form = e.target;30let formData = new FormData(form);31formData.append("title", document.getElementById('title').value)32formData.append("price", document.getElementById('price').value)33for(let i =0; i < filesArray.length; i++) {34    formData.append("images", filesArray[i]);35}36fetch(`/update/${id}`,{37    method:'POST',38    header:{39        "x-access-token": localStorage.getItem("token"),40    },41    body: formData42})43.then(res=>res.json())44.then(res=>console.log(res))45navigate(`/details?id=${id}`, { replace: true });46}47export function handleInputChange(e,setInputFiles,inputFiles){48e.preventDefault();49let array=Array.from(e.target.files);50setInputFiles([...inputFiles, ...array] );        ...

imageUpload.js

Source: imageUpload.js

...9                    let fileBlob = await fetch(`/images/tricks/${image}`);10                    let file = new File([await fileBlob.blob()], image);11                    this.files.push(file);12                });13                setTimeout(() => this.setInputFiles(), 100);14            }15        },16        updateFiles() {17            let uploadedFiles = Array.from(this.$event.target.files);18            this.files = this.files.concat(uploadedFiles).slice(0, 3);19            this.setInputFiles();20        },21        setInputFiles() {22            const targetFiles = new DataTransfer();23            this.files.forEach(file => targetFiles.items.add(file));24            this.$refs.input.files = targetFiles.files;25        },26        deleteFile(file) {27            this.files = this.files.filter(f => f !== file);28            this.setInputFiles();29        },30    })...

page.js

Source: page.js

...18    const input = `(//input[@type="file"])[${side === "left" ? 1 : 2}]`;19    const listbox = `(//*[@aria-haspopup="listbox"])[${20      side === "left" ? 1 : 221    }]`;22    await page.setInputFiles(input, []);23    await page.evaluate(() => new Promise(requestAnimationFrame));24    await page.setInputFiles(input, module.exports.fixturePath(file));25    await page.waitForSelector(`${listbox} >> "${file}"`);26  },...

index.mjs

Source: index.mjs

1// eslint-disable-next-line import/no-extraneous-dependencies, import/extensions2import createFileList from 'create-file-list/dist/create-file-list.mjs'3function setInputFiles(input, files) {4  input.files = createFileList(files)5}...

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const context = await browser.newContext();5  const page = await context.newPage();6  await page.setInputFiles('input[type=file]', ['./test.txt']);7  await page.screenshot({ path: `screenshot.png` });8  await browser.close();9})();

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const context = await browser.newContext();5  const page = await context.newPage();6  await page.setInputFiles('input[type=file]', 'C:\\Users\\user\\Desktop\\test.txt');7  await page.screenshot({ path: 'example.png' });8  await browser.close();9})();10const { chromium } = require('playwright');11(async () => {12  const browser = await chromium.launch();13  const context = await browser.newContext();14  const page = await context.newPage();15  await page.setInputFiles('input[type=file]', 'C:\\Users\\user\\Desktop\\test1.txt');16  await page.screenshot({ path: 'example1.png' });17  await browser.close();18})();19const { chromium } = require('playwright');20(async () => {21  const browser = await chromium.launch();22  const context = await browser.newContext();23  const page = await context.newPage();24  await page.setInputFiles('input[type=file]', 'C:\\Users\\user\\Desktop\\test2.txt');25  await page.screenshot({ path: 'example2.png' });26  await browser.close();27})();28const { chromium } = require('playwright');29(async () => {30  const browser = await chromium.launch();31  const context = await browser.newContext();32  const page = await context.newPage();33  await page.setInputFiles('input[type=file]', 'C:\\Users\\user\\Desktop\\test3.txt');34  await page.screenshot({ path: 'example3.png' });35  await browser.close();36})();37const { chromium } = require('playwright');38(async () => {39  const browser = await chromium.launch();40  const context = await browser.newContext();41  const page = await context.newPage();42  await page.setInputFiles('input[type=file]', 'C:\\Users\\user\\Desktop\\test4.txt');43  await page.screenshot({ path: 'example4.png' });44  await browser.close();45})();

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const context = await browser.newContext();5  const page = await context.newPage();6  await page.setInputFiles('input[type="file"]', [7  ]);8  await page.screenshot({ path: `example.png` });9  await browser.close();10})();11Error: Protocol error (Input.dispatchMouseEvent): Object reference chain is too long12Error: Protocol error (Page.setInputFiles): No file to upload13Error: Protocol error (Page.setInputFiles): No file to upload14const { chromium } = require('playwright');15(async () => {16  const browser = await chromium.launch();17  const context = await browser.newContext();18  const page = await context.newPage();19  await page.setInputFiles('input[type="file"]', [20  ]);21  await page.screenshot({ path: `example.png` });22  await browser.close();23})();24Error: Protocol error (Page.setInputFiles): No file to upload25const { chromium } = require('playwright');26(async () => {27  const browser = await chromium.launch();28  const context = await browser.newContext();29  const page = await context.newPage();30  await page.setInputFiles('input[type="file"]', [31  ]);32  await page.screenshot({ path: `example.png` });33  await browser.close();34})();

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const context = await browser.newContext();5  const page = await context.newPage();6  await page.setInputFiles('input[type=file]', '/path/to/file');7  await browser.close();8})();

Using AI Code Generation

1const { chromium } = require('playwright');2const path = require('path');3(async () => {4  const browser = await chromium.launch();5  const context = await browser.newContext();6  const page = await context.newPage();7  await page.setInputFiles('input[type=file]', [8    path.join(__dirname, 'file1.txt'),9    path.join(__dirname, 'file2.txt'),10  ]);11  await browser.close();12})();13await page.setInputFiles('input[type=file]', [14    path.join(__dirname, 'file1.txt'),15    { name: 'file2.txt', mimeType: 'text/plain', buffer: fs.readFileSync(path.join(__dirname, 'file2.txt')) },16  ]);

Using AI Code Generation

1const playwright = require('playwright');2(async () => {3  const browser = await playwright['chromium'].launch({headless: false});4  const context = await browser.newContext();5  const page = await context.newPage();6  await page.setInputFiles('input[type="file"]', './test.txt');7  await page.screenshot({ path: 'google.png' });8  await browser.close();9})();

Using AI Code Generation

1const { chromium } = require('playwright');2const path = require('path');3(async () => {4  const browser = await chromium.launch();5  const page = await browser.newPage();6  await page.setInputFiles('input[type=file]', [path.join(__dirname, 'file1.txt')]);7  await page.setInputFiles('input[type=file]', [path.join(__dirname, 'file2.txt')], { timeout: 30000 });8  await page.setInputFiles('input[type=file]', [path.join(__dirname, 'file3.txt')], { timeout: 30000, noWaitAfter: true });9  await page.setInputFiles('input[type=file]', [path.join(__dirname, 'file4.txt')], { noWaitAfter: true });10})();

Using AI Code Generation

1const { test, expect } = require('@playwright/test');2const path = require('path');3test('test', async ({ page }) => {4  await page.setInputFiles('input[type=file]', [path.join(__dirname, 'test.txt')]);5  expect(await page.$eval('input[type=file]', (el) => el.value)).toBe('C:\\Users\\user\\Desktop\\test.txt');6});7const { test, expect } = require('@playwright/test');8const path = require('path');9test('test', async ({ page }) => {10  const filePath = path.join(__dirname, 'test.txt').replace(/\\/g, '/');11  await page.setInputFiles('input[type=file]', [filePath]);12  expect(await page.$eval('input[type=file]', (el) => el.value)).toBe('/home/user/Desktop/test.txt');13});

Using AI Code Generation

1const { test, expect } = require('@playwright/test');2const { setInputFiles } = require('@playwright/test/lib/internal/autotools');3test('test', async ({ page }) => {4  await setInputFiles(page, 'input[type=file]', ['./test.js']);5  await page.click('input[type=submit]');6  const content = await page.textContent('#uploaded-files');7  expect(content).toBe('test.js');8});9const { test, expect } = require('@playwright/test');10test('test', async ({ page }) => {11  await page.setInputFiles('input[type=file]', ['./test.js']);12  await page.click('input[type=submit]');13  const content = await page.textContent('#uploaded-files');14  expect(content).toBe('test.js');15});16import { test, expect } from '@playwright/test';17test('test', async ({ page }) => {18  await page.setInputFiles('input[type=file]', ['./test.js']);19  await page.click('input[type=submit]');20  const content = await page.textContent('#uploaded-files');21  expect(content).toBe('test.js');22});23import { test, expect } from '@playwright/test';24test('test', async ({ page }) => {25  await page.setInputFiles('input[type=file]', ['./test.js']);26  await page.click('input[type=submit]');27  const content = await page.textContent('#uploaded-files');28  expect(content).toBe('test.js');29});30import { test, expect } from '@playwright/test';31test('test', async ({ page }) => {32  await page.setInputFiles('input[type=file]', ['./test.js']);33  await page.click('input[type=submit]');34  const content = await page.textContent('#uploaded-files');35  expect(content).toBe('test.js');36});37import { test, expect } from '@playwright/test';38test('test', async ({ page }) => {

StackOverFlow community discussions

Questions

Discussion

Jest + Playwright - Test callbacks of event-based DOM library

How to run a list of test suites in a single file concurrently in jest?

Running Playwright in Azure Function

firefox browser does not start in playwright

Is it possible to get the selector from a locator object in playwright?

firefox browser does not start in playwright

This question is quite close to a "need more focus" question. But let's try to give it some focus:

Does Playwright has access to the cPicker object on the page? Does it has access to the window object?

Yes, you can access both cPicker and the window object inside an evaluate call.

Should I trigger the events from the HTML file itself, and in the callbacks, print in the DOM the result, in some dummy-element, and then infer from that dummy element text that the callbacks fired?

Exactly, or you can assign values to a javascript variable:

const cPicker = new ColorPicker({
  onClickOutside(e){
  },
  onInput(color){
    window['color'] = color;
  },
  onChange(color){
    window['result'] = color;
  }
})

And then

it('Should call all callbacks with correct arguments', async() => {
    await page.goto(`http://localhost:5000/tests/visual/basic.html`, {waitUntil:'load'})

    // Wait until the next frame
    await page.evaluate(() => new Promise(requestAnimationFrame))

    // Act
   
    // Assert
    const result = await page.evaluate(() => window['color']);
    // Check the value
})

https://stackoverflow.com/questions/65477895/jest-playwright-test-callbacks-of-event-based-dom-library

Assuming you are not running test with the --runinband flag, the simple answer is yes but it depends ????

There is a pretty comprehensive GitHub issue jest#6957 that explains certain cases of when tests are run concurrently or in parallel. But it seems to depend on a lot of edge cases where jest tries its best to determine the fastest way to run the tests given the circumstances.

To my knowledge there is no way to force jest to run in parallel.

Aside

Have you considered using playwright instead of puppeteer with jest? Playwright has their own internally built testing library called @playwright/test that is used in place of jest with a similar API. This library allows for explicitly defining test groups in a single file to run in parallel (i.e. test.describe.parallel) or serially (i.e. test.describe.serial). Or even to run all tests in parallel via a config option.

// parallel
test.describe.parallel('group', () => {
  test('runs in parallel 1', async ({ page }) => {});
  test('runs in parallel 2', async ({ page }) => {});
});

// serial
test.describe.serial('group', () => {
  test('runs first', async ({ page }) => {});
  test('runs second', async ({ page }) => {});
});

https://stackoverflow.com/questions/73497773/how-to-run-a-list-of-test-suites-in-a-single-file-concurrently-in-jest

I found the error. It was because of some missing libraries need. I discovered this when I downgraded playwright to version 1.9 and ran the the code then this was the error msg:

(node:12876) UnhandledPromiseRejectionWarning: browserType.launch: Host system is missing dependencies!

Some of the Universal C Runtime files cannot be found on the system. You can fix
that by installing Microsoft Visual C++ Redistributable for Visual Studio from:
https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads

Full list of missing libraries:
    vcruntime140.dll
    msvcp140.dll
Error
    at Object.captureStackTrace (D:\Projects\snkrs-play\node_modules\playwright\lib\utils\stackTrace.js:48:19)
    at Connection.sendMessageToServer (D:\Projects\snkrs-play\node_modules\playwright\lib\client\connection.js:69:48)
    at Proxy.<anonymous> (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:64:61)
    at D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:64:67
    at BrowserType._wrapApiCall (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:77:34)
    at BrowserType.launch (D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:55:21)
    at D:\Projects\snkrs-play\index.js:4:35
    at Object.<anonymous> (D:\Projects\snkrs-play\index.js:7:3)
    at Module._compile (internal/modules/cjs/loader.js:1063:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:12876) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:12876) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

A list of missing libraries was provided. After successful installments, firefox ran fine. I upgraded again to version 1.10 and firefox still works.

https://stackoverflow.com/questions/66984974/firefox-browser-does-not-start-in-playwright

Well this is one way, but not sure if it will work for all possible locators!.

// Get a selector from a playwright locator
import { Locator } from "@playwright/test";
export function extractSelector(locator: Locator) {
    const selector = locator.toString();
    const parts = selector.split("@");
    if (parts.length !== 2) { throw Error("extractSelector: susupect that this is not a locator"); }
    if (parts[0] !== "Locator") { throw Error("extractSelector: did not find locator"); }
    return parts[1];
}

https://stackoverflow.com/questions/72044959/is-it-possible-to-get-the-selector-from-a-locator-object-in-playwright

I found the error. It was because of some missing libraries need. I discovered this when I downgraded playwright to version 1.9 and ran the the code then this was the error msg:

(node:12876) UnhandledPromiseRejectionWarning: browserType.launch: Host system is missing dependencies!

Some of the Universal C Runtime files cannot be found on the system. You can fix
that by installing Microsoft Visual C++ Redistributable for Visual Studio from:
https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads

Full list of missing libraries:
    vcruntime140.dll
    msvcp140.dll
Error
    at Object.captureStackTrace (D:\Projects\snkrs-play\node_modules\playwright\lib\utils\stackTrace.js:48:19)
    at Connection.sendMessageToServer (D:\Projects\snkrs-play\node_modules\playwright\lib\client\connection.js:69:48)
    at Proxy.<anonymous> (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:64:61)
    at D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:64:67
    at BrowserType._wrapApiCall (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:77:34)
    at BrowserType.launch (D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:55:21)
    at D:\Projects\snkrs-play\index.js:4:35
    at Object.<anonymous> (D:\Projects\snkrs-play\index.js:7:3)
    at Module._compile (internal/modules/cjs/loader.js:1063:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:12876) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:12876) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

A list of missing libraries was provided. After successful installments, firefox ran fine. I upgraded again to version 1.10 and firefox still works.

https://stackoverflow.com/questions/66984974/firefox-browser-does-not-start-in-playwright

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Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.