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How to write a class so that it can be mocked?

 
roger wong
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I am studying junit. Currently there are many ways(jmock, easymock, virtualmock, java proxy, and blah blah blah) to mock a class.

I just wonder how to write a class so that it can be mocked?

Thank you.
 
David Newton
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IntelliJ IDE Ruby
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You don't need to do anything special, although some frameworks are happier mocking interfaces rather than classes.

The biggest thing to keep in mind is to have as few dependencies as possible in the class being mocked: reduce or eliminate static dependencies, inject as much functionality as possible/practical, and so on.
 
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