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Phase 8 · API Testing

Topics

API Test Design

Part of the QA Testing Roadmap.

Summary

Designing API test cases covering valid inputs, invalid inputs, boundary conditions, and error scenarios — applying Phase 2's test case design techniques specifically to API endpoints.

How to Learn This

  • 1Design 8-10 test cases for a sample API endpoint, covering positive and negative scenarios.
  • 2Learn to test for correct error handling, not just the happy path.
  • 3Practice verifying response body structure and content, not just the status code alone.

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Postman Fundamentals

Next

Automating API Tests (REST Assured / Requests)

More topics in API Testing

REST API Basics for TestersHTTP Methods & Status CodesPostman FundamentalsAutomating API Tests (REST Assured / Requests)Authentication Testing (OAuth, API Keys)API Contract TestingGraphQL Testing BasicsMocking & Stubbing APIs
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