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
    browser.url('/upload');

    // set file path value in the input field
    input.setValue(remoteFilePath);
    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.

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

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

youtube.com/watch?v=e8goAKb6CC0&list=PL...