During browser automation, you might run into a scenario where you need to upload a test file, this is really easy to do with WebdriverIO. Let's take a look at an example below.

I'm using this test url for this example which is stored in the wdio.conf.js file.

const path = require('path');

describe('Upload File', () => {
  it('should be able to upload a file', () => {
    // find selectors
    const input = $('#file-upload');
    const submitBtn = $('#file-submit');

    // store test file path
    const filePath = path.join(__dirname, '../data/chrome.png');

    // use browser.uploadFile to upload the test file
    const remoteFilePath = browser.uploadFile(filePath);

    // access the test page

    // set file path value in the input field
    submitBtn.click(); // click the submit button

    // Add your assertion here

💎 This code is also available on GitHub for you to access and play around with.

You can also checkout the video below that will show you the detailed explanation of the code above.

To learn more about WebdriverIO, you can check out my free tutorial series here -

WebdriverIO - Tutorial Series for Beginners