How to do unit test for Exceptions?

Question

As you know, exception is thrown at the condition of abnormal scenarios. So how to analog these exceptions? I feel it is challenge. For such code snippets:

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Answer 1

You can tell junit that the correct behavior is to get an exception.

In JUnit 4, it goes something like:

@Test(expected = MyExceptionClass.class) 
public void functionUnderTest() {
    …
}