What's the actual use of 'fail' in JUnit test case?

Question

What\'s the actual use of \'fail\' in JUnit test case?

Answer 1

I've used it in the case where something may have gone awry in my @Before method.

public Object obj;

@Before
public void setUp() {
    // Do some set up
    obj = new Object();
}

@Test
public void testObjectManipulation() {
    if(obj == null) {
        fail("obj should not be null");
     }

    // Do some other valuable testing
}