What attribute should a good unit test have?

Question

Unit test should

• produce a deterministic result
• to be independent
• be valid
• ...

What other characteristics should the test have?

Answer 1

Oh. My favorite subject :-) Where to start ...

According to xUnit Test Samples by Gerard Mesaros (Unit Testing Book)

• Tests should reduce risk, not introduce it.
• Tests should be easy to run.
• Tests should be easy to maintain. the system is developing around them

Some things to make it easier:

• Tests should only fail due to one reason. (Tests should check only one thing, avoid multiple statements, for example.)
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Answer 2

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