Quiz: What’s the Best Test Method Name?

which of the following names of test methods do you think to be the best?

the best test method name:

1. test()
2. testpayment()
3. testpaymentunknownuserid()
4. payment_should_fail_for_for_unknown_userid

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(notice that we could leave out “payment_” from the last name if it is clear from the context, i.e. from the fixture [a fancy name for test class] name.)

according to the holy book of clean code , the code should make visible the intent as much as possible. according to the testing guru kent b., a test should be telling a story to its reader – a story about how the code should be used and function. according to these two and my own experiences from reading a lot of (test) core written by other people, the last one is absolutely the best. however you have the right to disagree and discuss

ps: i firmly believe that calling a test method “ test() ” should be punishable.

source: http://theholyjava.wordpress.com/2011/12/13/quiz-whats-the-best-test-method-name/