Name test cases with a specification style
Use the name of the test case to describe one (and only one) behaviour of the unit under test.
The method name should start with should. This is superfluous once you get good at writing test names, but in a mixed team it is useful as it encourages thinking about the test in the right way.
The rest of the name should describe a behaviour and optionally a scenario (identified by the word When). e.g we might start to describe java.util.Stack with
shouldBeEmptyWhenCreatedshouldReturnItemsInOrderTheyWereAddedshouldThrowAnErrorWhenItemsRemovedFromEmptyStack