Stress testing is a type of performance testing that evaluates how a system behaves under extreme conditions, typically beyond its normal operational capacity. The goal is to determine the breaking point of the system and understand how it fails.
Key differences from load testing:
Load Testing: Tests system behavior under expected normal load conditions
Stress Testing: Tests system behavior under extreme or peak load conditions, often beyond normal capacity
Load Testing: Focuses on validating performance requirements
Stress Testing: Focuses on finding the maximum capacity and failure points
Example: If your website normally handles 1,000 concurrent users, load testing might test with 800-1,200 users, while stress testing might test with 5,000-10,000 users to see when it breaks.
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