Junit exception test

Question

I have two tests to check the expected exception throw. I am using Junit 4 and has following syntax. ``` @Test(expected=IllegalArgumentException.class) public void testSomething(){ .......... } ``` One of the tests fail even though IllegalArgumentException is thrown and the other passes. Any idea whats missing?? I modified the test which is failing to following and it passes. ``` public void testSomething(){ try{ ............ //line that throws exception fail(); }catch(IllegalArgumentException e) { } } ```

Accepted Answer

Prithis just something I noticed the second test does not have @Test annotation at all. JUNIT4 does not run tests that are not annotated even if the method names starts with test*** (unless of course you actually extend the TestCase class in which case it behaves like a JUNIT3.x testcase)

Perhaps that is the case that the test is not running at all (and hence makes you think that it passes)?

Junit exception test

Solution

Problem