How to verify that an exception was not thrown

Question

In my unit test using Mockito I want to verify that NullPointerException was not thrown.

public void testNPENotThrown{
    Calling calling= Mock         


        

Answer 1

If I dont understand you wrong you need something like this:

@Test(expected = NullPointerException.class)
public void testNPENotThrown {
    Calling calling= Mock(Calling .class);
    testClass.setInner(calling);
    testClass.setThrow(true);

    testClass.testMethod();

    verify(calling, never()).method();
    Assert.fail("No NPE");
}

but by the naming of the test "NPENotThrown" I would expect a test like this:

public void testNPENotThrown {
    Calling calling= Mock(Calling .class);
    testClass.setInner(calling);
    testClass.setThrow(true);

    testClass.testMethod();
    try {
        verify(calling, never()).method();
        Assert.assertTrue(Boolean.TRUE);
    } catch(NullPointerException ex) {
        Assert.fail(ex.getMessage());
    }
}