Naming convention JUnit suffix or prefix Test [closed]

Question

Class under test MyClass.java JUnit test case name alternatives:

TestMyClass.java MyClassTest.java 

http://moreunit.sourceforge.net seems to use "Test" as prefix default but I have seen both uses. Both seems to be recognized when running the entire project as unit test in eclipse as it is the annotation inside classes that are parsed for @Test. I guess maven does the same thing.

Which is preferred?

Answer 1

Another argument for suffix - at least in english language:

A class usually represents a noun, it is a model of a concept. An instance of one of your tests would be a 'MyClass test'. In contrast, a method would model some kind of action, like 'test [the] calculate [method]'.

Because of this, I'd always use the 'suffix' for test classes and the prefix for test methods:

the MyClass test          --> MyClassTest test the calculate method --> testCalculate() 

Answer 2

I prefer to use the suffix - it means that looking down the list of files in a directory is simpler: you don't have to mentally ignore the first four letters to get to something meaningful. (I'm assuming you have the tests in a different directory to the production code already.)

It also means that when you use Open Type (Ctrl-T) in Eclipse, you end up seeing both the production code and its test at the same time... which is also a reminder if you don't see a test class :)