What's the actual use of 'fail' in JUnit test case?
ベストアンサー1
Some cases where I have found it useful:
- mark a test that is incomplete, so it fails and warns you until you can finish it
- making sure an exception is thrown:
try{ // do stuff... fail("Exception not thrown"); }catch(Exception e){ assertTrue(e.hasSomeFlag()); }
Note:
Since JUnit4, there is a more elegant way to test that an exception is being thrown: Use the annotation @Test(expected=IndexOutOfBoundsException.class)
However, this won't work if you also want to inspect the exception, then you still need fail()
.