Book Image

End-to-End Web Testing with Cypress

By : Waweru Mwaura
1 (1)
Book Image

End-to-End Web Testing with Cypress

1 (1)
By: Waweru Mwaura

Overview of this book

Cypress is a modern test automation framework for web-based frontend apps. Learning Cypress will help you overcome the shortcomings of conventional testing solutions such as dependency graph problems, the steep learning curve in setting up end-to-end testing packages, and difficulties in writing explicit time waits for your tests. In End-to-End Web Testing with Cypress, you’ll learn how to use different Cypress tools, including time travel, snapshots, errors, and console output, to write fail-safe and non-flaky tests. You’ll discover techniques for performing test-driven development (TDD) with Cypress and write cross-browser tests for your web applications. As you advance, you’ll implement tests for a sample application and work with a variety of tools and features within the Cypress ecosystem. Finally, this Cypress book will help you grasp advanced testing concepts such as visual testing and networking. By the end of this book, you’ll have the skills you need to be able to set up Cypress for any web app and understand how to use it to its full potential.
Table of Contents (17 chapters)
1
Section 1: Cypress as an End-to-End Testing Solution for Frontend Applications
7
Section 2: Automated Tests with the TDD Approach
12
Section 3: Automated Testing for Your Web Application

Writing your first test

Cypress tests are no different than any other tests. As in all other tests, Cypress tests should pass when the expected result is consistent with what the application under test expects; it should fail when the expected result is not consistent with what the application should do. In this section, we will explore different types of tests, the structure of a test, and how Cypress understands the changes in a test file and reruns the tests. This section will also cover how to write practical tests.

Example test

In this section, we will look at the basic structure of a Cypress test. This remains standard in most of the tests that we will write during the course of this chapter. The following test checks that what we expect and what is returned are equal to true. It should pass when we run it:

describe('Our Sample Test', () => {
  it('returns true', () => {
    expect(true).to.equal(true);
 &...