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Phase 13 · Testing the Full Stack

Topics

API Testing

Part of the Full Stack Developer Roadmap.

Summary

Testing your backend's API directly, independent of any frontend — using Supertest or Postman/Newman to verify every endpoint behaves correctly.

How to Learn This

  • 1Write Supertest tests covering both success and validation-error cases for an endpoint.
  • 2Build a Postman collection covering your whole API and run it via Newman.
  • 3Add API tests to CI so a backend regression is caught before it breaks the frontend.

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Integration Testing

Next

End-to-End Testing (Playwright/Cypress)

More topics in Testing the Full Stack

Unit Testing (Frontend)Unit Testing (Backend)Integration TestingEnd-to-End Testing (Playwright/Cypress)Testing Authentication Flows
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