The code defines an asynchronous function testDriver that imports a getClient module, sets up a web driver, navigates to Facebook, waits for 4 seconds, and then closes the driver. The function is exported as a module.

Run example

npm run import -- "webdriver test"

webdriver test

const getClient = importer.import("webdriver client")

async function testDriver() {
  let driver = await getClient()
  try {
    let facebook = 'https://www.facebook.com'

    await driver.get(facebook)

    await new Promise(resolve => setTimeout(resolve, 4000))
  } catch (e) {
    console.log(e)
  } finally {
    driver.quit()
  }
}

module.exports = testDriver

// Import the necessary modules
const { Client } = require('webdriverio');

// Define a function to get the client instance
async function getClient(browserType = 'chrome') {
  try {
    // Get the client instance
    const client = await Client.launch({
      capabilities: {
        browserName: browserType,
      },
    });
    return client;
  } catch (error) {
    console.error(`Failed to launch ${browserType} browser:`, error);
    process.exit(1); // Exit the process if client instance cannot be obtained
  }
}

// Define the main test function
async function testDriver() {
  try {
    // Get the client instance
    const driver = await getClient('chrome');

    // Define the test website URL
    const facebookUrl = 'https://www.facebook.com';

    // Navigate to the test website
    await driver.get(facebookUrl);

    // Wait for 4 seconds
    await new Promise((resolve) => setTimeout(resolve, 4000));
  } catch (error) {
    console.error('Test failed:', error);
  } finally {
    // Quit the browser in the end
    if (driver) {
      await driver.quit();
    }
  }
}

// Export the test function
module.exports = testDriver;

Code Breakdown

Import

• const getClient = importer.import('webdriver client')
  • Imports a module named 'webdriver client' using the importer object.
  • Assigns the imported module to the constant getClient.

Function

• async function testDriver()
  • Defines an asynchronous function named testDriver.

Function Body

• let driver = await getClient()

  • Calls the getClient() function and waits for its completion using the await keyword.
  • Assigns the result to the variable driver.

• try {... } catch (e) {... } finally {... }

  • Encloses the code within a try-catch-finally block.
  • The try block contains the code that may throw an error.
  • The catch block handles any errors thrown by the code in the try block.
  • The finally block is executed regardless of whether an error occurred.

• try block:

  • let facebook = 'https://www.facebook.com'
    • Assigns the string 'https://www.facebook.com' to the variable facebook.
  • await driver.get(facebook)
    • Calls the get() method on the driver object, passing facebook as an argument.
  • await new Promise(resolve => setTimeout(resolve, 4000))
    • Creates a promise that resolves after 4 seconds using the setTimeout() function.
    • Waits for the promise to resolve using the await keyword.

• catch block:

  • console.log(e)
    • Logs the caught error e to the console.

• finally block:

  • driver.quit()
    • Calls the quit() method on the driver object to close it.

Export

• module.exports = testDriver
  • Exports the testDriver function as a module.