Testing

• Unit Tests
  • Jest
  • Testing Library https://testing-library.com/docs/queries/about#priority
• Integration/e2e Tests
  • Cypress
  • Playwright
• Other cool testing tools
  • vitest

Mocking

• createMock(...) from @testing-library/angular/jest-utils
• createSpyFromClass(...) from jest-auto-spies

Angular

• ng-mocks
  • MockComponent(Component) creates a mock of an Component. Good for testing individual components without needing to bootstrap all sub component
  • MockPipe(Pipe, value => JSON.stringify(value)) mock a pipe
  • ...
• Spectacular
• Spectator ngneat has other cool libraries for Angular and JS/TS too