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Developer Testing Best Practices

April 5, 2026

Testing Serverless Applications

Comprehensive testing strategy for AWS workloads.

Testing Layers

Unit Testing:
- Lambda handler functions
- Business logic isolation
- DynamoDB data mappers

Integration Testing:
- LocalStack AWS emulation
- DynamoDB Local database
- SAM Local API Gateway

Load Testing:
- Artillery/Locust scripts
- API Gateway throttling tests
- Lambda concurrency limits

Optimization Tools

  • Lambda Power Tuning (memory)
  • Serverless Framework plugins
  • AWS SAM Accelerate plugin
  • Code coverage reporting