Selenium With JS

Using Selenium with JavaScript is a popular choice for web application testing, especially for teams already working with a JavaScript-based tech stack. Selenium WebDriver provides a JavaScript API that can be used to write automated test scripts for web browsers. Here’s how you can set up and use Selenium with JavaScript:

Setting Up Selenium WebDriver with JavaScript

Install Node.js:
- Ensure you have Node.js installed on your machine. You can download it from the Node.js website.
Initialize a Node.js Project:
- Create a new directory for your project.
- Run npm init in your project directory and follow the prompts to create a package.json file.
Install Selenium WebDriver:
- Install the Selenium WebDriver package by running:
  bash
  npm install selenium-webdriver
Install Browser Drivers:
- You need to install drivers for each browser you want to automate. For instance, for Chrome, you can install chromedriver.
- Install it via npm:
  bash
  npm install chromedriver
- Alternatively, download the driver manually and ensure it’s in your system’s PATH.

Writing a Basic Selenium WebDriver Script in JavaScript

Here’s a simple example of using Selenium WebDriver with JavaScript to open a web page and perform a basic action:

javascript

const { Builder, By, Key, until } = require('selenium-webdriver');

async function example() {
    let driver = await new Builder().forBrowser('chrome').build();

    try {
        // Navigate to a URL
        await driver.get('http://www.google.com');

        // Find an element and interact with it
        let searchBox = await driver.findElement(By.name('q'));
        await searchBox.sendKeys('Selenium WebDriver', Key.RETURN);

        // Wait for the results page and check the title
        await driver.wait(until.titleContains('Selenium WebDriver'), 1000);
    } finally {
        // Quit the browser session
        await driver.quit();
    }
}

example();

Running the Script

Run your script using Node.js:
bash
node your_script.js
The script will open a Chrome browser window, navigate to Google, perform a search for “Selenium WebDriver,” and then close the browser.

Best Practices

Error Handling: Incorporate try/catch blocks for better error handling.
Asynchronous Execution: Use async/await for handling asynchronous operations in your scripts.
Modularization: Organize your code into functions or modules for reusability and maintainability.
Page Object Model (POM): Implement POM for more complex tests to separate the page structure from the test logic.

Demo Day 1 Video:

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