API Test Strategy
Test Categories
| Category | Tests |
|---|---|
| Happy path | Correct input → expected output |
| Validation | Invalid input → 400/422 |
| Auth | No token → 401, wrong role → 403 |
| Edge cases | Empty, null, max size |
| Performance | Response time, load |
Key Points
- Understanding API Testing Strategies is essential for production systems
- Always consider scalability and maintainability
- Test thoroughly before deploying to production
- Monitor performance and set up alerting
Common Patterns
- Validation: Always validate input at the boundary
- Error Handling: Use structured error responses
- Logging: Log key events for debugging
- Testing: Unit, integration, and load tests
- Documentation: Keep docs updated with code changes
API Best Practices
Design Principles
- Use nouns, not verbs
- Plural resource names
- Consistent naming conventions
- Proper HTTP status codes
Versioning
- URI versioning (/v1/resource)
- Header versioning
- Deprecation policy
Documentation
- OpenAPI/Swagger specs
- Request/Response examples
- Error code documentation
- Rate limit documentation
Key Points
- Understanding API Testing Strategies is essential for production systems
- Always consider scalability and maintainability
- Test thoroughly before deploying to production
- Monitor performance and set up alerting
Common Patterns
- Validation: Always validate input at the boundary
- Error Handling: Use structured error responses
- Logging: Log key events for debugging
- Testing: Unit, integration, and load tests
- Documentation: Keep docs updated with code changes
Practice Problems
Design and implement a solution for API Testing Strategies in a backend system. Consider scalability, error handling, and production readiness.
Solution
// API Testing Strategies implementation
// Key aspects: validation, error handling, logging, testing
public class APITestingStrategies {
// Production-ready implementation
}Identify and handle edge cases for API Testing Strategies. What happens under high load, with invalid input, or during failures?
Solution
// Edge case handling:
// 1. Null/empty input -> validation
// 2. High load -> rate limiting, queuing
// 3. Failures -> retries, circuit breaker
// 4. Concurrent access -> locks, idempotencyWrite a testing strategy for API Testing Strategies. Include unit tests, integration tests, and performance tests.
Solution
// Test plan:
// - Unit: 80% coverage target
// - Integration: API contracts
// - Performance: latency, throughput
// - Chaos: failure injectionQuiz
1. API test categories include?
2. Edge case testing includes?
3. What is the primary purpose of API Testing Strategies?
4. What is a common mistake when implementing API Testing Strategies?
Flashcards
Question
API test categories?
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Answer
Happy path, validation, auth, edge cases
Question
Edge cases?
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Answer
Empty, null, max size, boundary values
Question
What is API Testing Strategies?
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Answer
API Testing Strategies is a key concept in backend development.
Question
When to use API Testing Strategies?
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Answer
Use API Testing Strategies when building production systems that require reliability, scalability, and maintainability.
Question
API Testing Strategies best practices
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Answer
Follow SOLID principles, write clean code, test thoroughly, document decisions, and monitor in production.
Revision Notes
Key Takeaways
- 1.Test: happy path, validation, auth, edge cases
- 2.Edge cases: empty, null, max, boundary
- 3.Automate in CI/CD
- 4.Document test cases
Interview Tips
- •Design API test suites
- •Test edge cases
Cheat Sheet
API Testing
- Categories: happy, validation, auth, edge
- Edge: empty, null, max, boundary
- Automate: CI/CD
- Document: test cases