Introduction to WebdriverIO

WebdriverIO is a popular end-to-end automation testing framework for web applications. It’s built over Node.js and provides a plethora of APIs to perform actions on your web applications effectively. In this guide, we will delve into several useful APIs provided by WebdriverIO with code snippets for better understanding.

Essential WebdriverIO APIs

1. browser.url()

Navigate to a specified URL.

  await browser.url('https://www.example.com');   

2. element.click()

Click on a selected element.

  const button = await $('#submit-button'); await button.click();  

3. element.setValue()

Set the value of an input field.

  const input = await $('#input-field'); await input.setValue('WebdriverIO');  

4. browser.getTitle()

Retrieve the title of the current webpage.

  const title = await browser.getTitle(); console.log(title);  

5. element.getText()

Get the text content of a selected element.

  const text = await $('#headline').getText(); console.log(text);  

6. browser.takeScreenshot()

Capture a screenshot of the current browser window.

  await browser.takeScreenshot();   

Application Example

Below is a simple example demonstrating the usage of the aforementioned WebdriverIO APIs to automate a login process:

  const { remote } = require('webdriverio');
(async () => {
    const browser = await remote({
        logLevel: 'info',
        capabilities: {
            browserName: 'chrome'
        }
    })
    
    await browser.url('https://www.example.com/login');
    await $('#username').setValue('exampleuser');
    await $('#password').setValue('examplepassword');
    await $('#login-button').click();
    
    const title = await browser.getTitle();
    console.log(`Title after login: ${title}`);
    
    await browser.deleteSession();
})();  

This is just a small sample of what you can achieve with WebdriverIO. The framework provides many more powerful APIs that you can use to create robust testing scenarios for your applications.

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