cyberneticlibrary

Test React components reliably

react-testingskillsetup L20
Sheshiyer/skill-clusters
What it does

Write isolated component and hook tests with proper isolation

Best for

Writing tests that survive refactoring because they test behavior, not implementation.

Outputs
  • · Test file code
  • · Test coverage report
Requires
  • · React Testing Library
  • · Jest
Preconditions

Testing library and test runner configured

Failure modes
  • · Test becomes fixture (passing but meaningless)
  • · Mocks hide real implementation bugs
Trust signals
  • · Uses React Testing Library best practices
  • · Documents test isolation patterns