Basic Functional Testing

• You guys probably know something about basic functional tests.
• A particular program or function is given input and you test that it gives the right output. That's black box testing.
• Your probably also familiar with the fool around test. You fool around with the program and see if it works the way you'd like.
• These are entirely reasonable tests, but they're just minor components of a good testing regime.
• Do you really think they fool around with a new version of excel and say "hey, that's good enough".
• Black box testing is good, but for any reasonable size program, you can't test all possible input output pairs.
• It is however important to test extreme cases.
• The problem with University is that you usually are just building small programs. Testing is simple, and they're tested by the marker.