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.

Intermediate

74 Lessons

3h 30min

Certificate of Completion

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.

AI-POWERED

Explanations

AI-POWERED

Explanations

This course includes

7 Playgrounds

7 Quizzes

This course includes

7 Playgrounds

7 Quizzes

Course Overview

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 ...Show More

Course Content

Introduction

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

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

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

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

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.

UI Integration Tests

9 Lessons

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

Other Best Practices

2 Lessons

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

Bonus Section

4 Lessons

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

10.

Conclusion

1 Lesson

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

11.

Appendix

4 Lessons

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

Course Author

Trusted by 1.4 million developers working at companies

Anthony Walker

@_webarchitect_

Evan Dunbar

ML Engineer

Carlos Matias La Borde

Software Developer

Souvik Kundu

Front-end Developer

Vinay Krishnaiah

Software Developer

Eric Downs

Musician/Entrepeneur

Kenan Eyvazov

DevOps Engineer

Souvik Kundu

Front-end Developer

Eric Downs

Musician/Entrepeneur

Anthony Walker

@_webarchitect_

Evan Dunbar

ML Engineer

Hands-on Learning Powered by AI

See how Educative uses AI to make your learning more immersive than ever before.

Instant 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.

AI-Powered Mock Interviews

Put your skills to the test in a simulated interview setting. Receive personalized feedback based on your performance. Available in Premium & Premium Plus plans.

Adaptive Learning

At various checkpoints throughout Educative courses, you will be prompted to take a quick assessment. Receive a condensed curriculum tailored to your strengths and skill gaps.

Explain with AI

Select any text within any Educative course, and get an instant explanation — without ever leaving your browser.

AI Code Mentor

AI Code Mentor helps you quickly identify errors in your code, learn from your mistakes, and nudge you in the right direction — just like a 1:1 tutor!

FOR TEAMS

Interested in this course for your business or team?

Unlock this course (and 1,000+ more) for your entire org with DevPath