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Home » Archives » April 2005 » Null as a method parameter

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04/29/2005: "Null as a method parameter"


Unless I'm publishing an API for general use, I don't worry about testing method parameters against null. It's too much code and too many duplicate tests. Besides, I would be testing the wrong thing.

When a method receives null as a parameter, the invoker -- and not the receiver -- is missing a test.