HomeCoursesFront-end Testing 101: Integration and End-to-end Testing

5.0

Intermediate

3h 30min

Front-end Testing 101: Integration and End-to-end Testing

Delve into front-end testing principles, learn best practices for writing enduring tests, and discover strategies for E2E testing and integration into CI pipelines. Gain actionable testing insights.

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Overview

Content

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This course will provide you with important information, principles, and experience-based advice, to enter the world of testing methodologies. Here, you will learn the best practices to follow to write useful and lasting tests, how to test different user flows without a working back-end, how to write effective end-to-end tests (E2E), and how to integrate tests into development and Continuous Integration pipelines. At the end of the course, you will be able to apply the fundamental principles of the test methodologies to understand what and how to test effectively.

This course will provide you with important information, principles, and experience-based advice, to enter the world of testing ...Show More

Content

74 Lessons7 Quizzes

Introduction

7 Lessons

Get familiar with front-end testing principles, methodologies, and best practices for reliable code.

Who Should Take This Course and Why?

An Easier Journey: Top to Bottom

E2E Testing

5 Lessons

Walk through E2E testing concepts, from Cypress UI to taking and reviewing screenshots.

Cypress UI

What is an E2E Test?

Quiz on E2E Testing

Challenge: Take a Screenshot

Solution Review: Take a Screenshot

The First E2E Test

13 Lessons

Work your way through creating E2E tests using Cypress for consistent, reliable user flows.

Conduit

Testing the Signup Flow: Challenges

Running Cypress

Interacting with the Page

Cypress Waitings and Execution Order

Main E2E Test Defects: Determinism

Main E2E Test Defects: Stability

Main E2E Test Defects: Utility in Case of Failure

Quiz on the First E2E Test

Challenge: Check Link in the Register Page

Solution Review: Check Link in the Register Page

Challenge: Fill Input Field

Solution Review: Fill Input Field

Polishing the E2E test

10 Lessons

Grasp the fundamentals of selecting stable DOM elements, sharing app constants, and testing user interactions.

Dom Elements Selection: data-testid

Dom Elements Selection: Cypress-testing-library

Sharing App Constants

Quiz on Polishing the E2E Test

Challenge: Logout the User

Solution Review: Logout the User

Challenge: Check the Home Page

Solution Review: Check the Home Page

Challenge: Register and Login

Solution Review: Register and Login

Ajax Requests

9 Lessons

Take a closer look at testing and asserting AJAX requests, user login flows, and response handling.

Waiting for an Ajax Request

Asserting on Payloads

Quiz on Ajax Requests

Challenge: Respond to Unregistered User

Solution Review: Respond to Unregistered User

Challenge: Respond to Registered User

Solution Review: Respond to Registered User

Challenge: Test User Login

Solution Review: Test User Login

Custom Commands

10 Lessons

Tackle creating custom Cypress commands, enhancing testing efficiency and integration with app actions.

Signup

App Actions

Sharing Authentication State

Quiz on Custom Commands

Challenge: Write a `getJwt` Command

Solution Review: Write a `getJwt` Command

Challenge: Return Object

Solution Review: Return windows.AppActions Object

Challenge: Write a Test and Custom Command

Solution Review: Write a Test and Custom Command

UI Integration Tests

9 Lessons

Master Cypress for UI integration testing by stubbing back-end, using fixtures, and custom commands.

Stubbing the Back-end

Fixtures

Custom Command

A Better Way to Front-end Test

Quiz on UI Integration Tests

Challenge: Show Articles

Solution Review: Show Articles

Challenge: Check Article Page

Solution Review: Check Article Page

Other Best Practices

2 Lessons

Get familiar with monitoring and controlling time to enhance test efficiency.

Monitoring Tests

Controlling the Clock

Bonus Section

4 Lessons

Discover the logic behind visual regression testing, Cypress advantages, and E2E limitations.

Visual Regression Testing

Cypress Vs Other Tools

Why Is E2E Testing Not Enough?

Quiz on Bonus Section

10.

Conclusion

1 Lessons

Master the steps to advanced front-end testing, integrating Jest, Cypress, and best practices.

Wrapping Up

11.

Appendix

4 Lessons

Grasp the fundamentals of enhancing coding efficiency and streamlining testing with Cypress.

Intellisense

Cypress as a Development Tool

Dedicated Scripts

Continuous Integration

Certificate of Completion

Showcase your accomplishment by sharing your certificate of completion.

Course Author:

Stefano Magni

Developed by MAANG Engineers

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Test your skills in a simulated interview setting. Receive personalized feedback based on your performance. Available for Coding Interviews, System Design, and more.

AI Prompt

Build prompt engineering skills. Practice implementing AI-informed solutions.

Code Feedback

Evaluate and debug your code with the click of a button. Get real-time feedback on test cases, including time and space complexity of your solutions.

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AI Code Mentor

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