JUnit Exception Testing

Question

Edit: Not JUnit 4 available at this time.

Hi there,

I have a question about \"smart\" exception testing with JUnit. At this time, I do it like this:

Answer 1

If you have an expected exception and you can't use an annotation to trap it, you need to catch it and assert that you've got what you expected. For example:

Throwable caught = null;
try {
   somethingThatThrows();
} catch (Throwable t) {
   caught = t;
}
assertNotNull(caught);
assertSame(FooException.class, caught.getClass());

If you can use an annotation instead, do that as it's much clearer. But that's not always possible (e.g., because you're testing a sequence of methods or because you're using JUnit 3).