How to Test a React App the Right Way

A solid React testing strategy layers three types of tests: unit tests for individual functions and hooks, component tests verifying rendering and interaction behavior with React Testing Library, and end-to-end tests with Cypress or Playwright covering critical user flows.

The guiding principle worth following is testing behavior, not implementation — tests that verify what a user actually sees and can do, rather than internal component state, survive refactoring far better and catch real regressions.

Cantonet Technologies builds this layered testing approach into every React project, balancing thorough coverage against maintainable test suites.