Testing Simple Cases

Before testing complex inputs, always verify your code works with simple cases. If it fails on easy inputs, it will definitely fail on hard ones. Start Simple When testing a function that processes lists, try these in order: Example: Testing a function that finds the maximum: Edge Cases Matter Edge cases are inputs at the boundaries of what's valid. They're where bugs most commonly hide. Handling edge cases is not optional. It separates working code from production-ready code. The consequences of ignoring edge cases can be enormous. Testing with simple cases first -- empty, single element, two elements -- catches most bugs before you even reach complex inputs. Build this habit and you will spend far less time debugging later. Edge cases are where the gap between "working code" and "product