'Test that the DelayedCall returned is not one previously
created.'

def test_callLaterOrdering(self):

    c = task.Clock()
    call1 = c.callLater(10, (lambda a, b: None), 1, b=2)
    call2 = c.callLater(1, (lambda a, b: None), 3, b=4)
    self.assertFalse((call1 is call2))
