Book Image

Enhanced Test Automation with WebdriverIO

By : Paul M. Grossman, Larry C. Goddard
Book Image

Enhanced Test Automation with WebdriverIO

By: Paul M. Grossman, Larry C. Goddard

Overview of this book

This book helps you embark on a comprehensive journey to master the art of WebdriverIO automation, from installation through to advanced framework development. You’ll start by following step-by-step instructions on installing WebdriverIO, configuring Node packages, and creating a simple test. Here you’ll gain an understanding of the mechanics while also learning to add reporting and screen captures to your test results to enhance your test case documentation. In the next set of chapters, you’ll delve into the intricacies of configuring and developing robust method wrappers, a crucial skill for supporting multiple test suites. The book goes beyond the basics, exploring testing techniques tailored for Jenkins as well as LambdaTest cloud environments. As you progress, you’ll gain a deep understanding of both TypeScript and JavaScript languages and acquire versatile coding skills. By the end of this book, you’ll have developed the expertise to construct a sophisticated test automation framework capable of executing an entire suite of tests using WebdriverIO in either TypeScript or JavaScript, as well as excel in your test automation endeavors and deliver reliable, efficient testing solutions.
Table of Contents (20 chapters)
16
Epilogue
Appendix: The Ultimate Guide to TypeScript Error Messages, Causes, and Solutions

Supercharged scroll before a click event

It is a good practice to check whether an element is on screen before performing a click. This method returns true if the element is in the viewport:

export async function isElementInViewport(element: WebdriverIO.Element): Promise<boolean> {
  let isInViewport = await element.isDisplayedInViewport();
  return isInViewport;
}

Using this method, we can optimize our code to scroll an element only if it is off-screen before performing the click event. However, there is a caveat: if an element is moving while WebdriverIO is attempting to click it, it may click the wrong element! So, we need another function to tell us when the element stops moving:

export async function waitForElementToStopMoving(element: WebdriverIO.Element, timeout: number = 1500): Promise<boolean> {
  let rect = await element.getRect();
  pause (100);
  let isMoving = (rect !== await element.getRect())
 ...