🔌 API Testing & Mocking
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# 🔌 API Testing & Mocking ## 1. 🎯 Learning Objectives - Test REST APIs with Postman - Mock external dependencies in unit tests - Apply contract testing between services ## 2.
🔌 API Testing & Mocking
1. 🎯 Learning Objectives
- Test REST APIs with Postman
- Mock external dependencies in unit tests
- Apply contract testing between services
2. 📖 Core Content
3.1 REST API Testing
Test aspects: Status codes, response body, headers, performance, authentication. Tools: Postman, REST Assured, supertest (Node.js).
3.2 Mocking
Replace real dependencies with simulated versions:
pythonfrom unittest.mock import Mock api = Mock() api.get_user.return_value = {"id": 1, "name": "Test"} result = service.process_user(1) assert result["name"] == "Test"
3.3 Contract Testing
Verify that API provider and consumer agree on interface. Tools: Pact, Spring Cloud Contract.
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