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ExpertAdvanced3 weeks

Testing

Verify frontend behavior with unit, component, integration, accessibility, and end-to-end tests.

Topic 20 of 24

Prerequisites

React.js
API Integration

Key Concepts & Skills

Vitest
Testing Library
Playwright
Mocking
Test pyramid
CI checks

Learning Outcomes

Understand the core principles of Vitest
Configure and deploy Testing Library successfully
Troubleshoot common issues with Playwright
Understand the core principles of Mocking
Configure and deploy Test pyramid successfully
Troubleshoot common issues with CI checks

Resources

Official documentation

Testing Library Playwright docs Vitest docs

Practice Exercises

Test forms and navigation.Mock API requests.Add an end-to-end smoke test for a critical flow.

Project Task

Create a tested checkout flow with unit and E2E coverage.

Quiz

What is the primary purpose of Testing?What are the common alternatives to Testing?How do you implement Testing in a production environment?

Notes