How make JUnit print assertion results

Question

How can I get the results of my JUnit assertions to be printed [to standard output]?

I have some tests like this:

@Test
public void test01()
{
    Position         


        

Answer 1

All the assertXXX methods have a form that allows for displaying a String on error:

assertNotNull("exists a2", p); // prints "exists a2" if p is null

There is no particular value in printing a message on success.

EDIT

Junit typically provides 2 forms of an assert. To follow the example above, you can test for a null value in 1 of 2 ways:

assertNotNull(p)

or

assertNotNull("my message on failure", p)

The framework will print the error messages with no other effort required by you (it's provided by the framework).

To test for exceptions you would use the following pattern:

try{
    someCall();
catch(Exception e){
    fail(): // exception shouldn't happen, use assertTrue(true) if it should
}

Again, there are versions of these methods for adding a message

Check the API