Blog

Learn how to test React components that fetch data using Mock Service Worker (MSW) - a powerful approach to mocking API calls at the network level.

Learn how to test React custom hooks using renderHook from Testing Library - covering state updates, async operations, and common patterns.

Learn effective mocking strategies for React tests - from mocking modules and components to spying on functions and handling common scenarios.

Understand when and how to use snapshot testing effectively in React - including inline snapshots, custom serializers, and common anti-patterns to avoid.

Learn how to write end-to-end tests for React applications using Playwright - covering setup, selectors, assertions, and testing real user workflows.

Learn the fundamentals of Cypress - installation, test structure, basic commands, and writing your first end-to-end test.

Master Cypress selectors, command chaining, and custom commands to write clean, maintainable E2E tests.

Master cy.intercept for network mocking in Cypress - intercept requests, stub responses, test error states, and wait for API calls.

Learn how to work with variables, closures, and aliases in Cypress to share data between commands and tests effectively.

Master debugging techniques in Cypress including time travel, command logs, snapshots, and browser DevTools integration.