Re: what is assertion in java?

Jan Thomä wrote: 
well the drawback of this is having your code cluttered with asserts all
over the place. it is possibly better to have a testing framework (like
junit) in place.


JUnit and asserts are not exactly equivalent technologies. How can you write a JUnit test that ensures that a particular method is never called with a null value? (Certainly not in any way that JUnit is typically used.)

Having code with asserts can be very helpful, as it is self documenting. If you see a method that takes a parameter x and you see an assert that x is not null, you know that the caller is responsible for not passing null values to the method. Asserts lay out the assumptions made by the code that follows.

Ray

--
XML is the programmer's duct tape.
.

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