'Asserts whether a sequence or collection is not empty
:param items: sequence or collection to be tested
:param msg: message to be passed to the AssertionError
:raises AssertionError: when items is empty'

def assertNotEmpty(self, items, msg=None):

    if (msg is None):
        msg = 'sequence    or    collection    is    empty.'
    self.assertTrue(items, msg)
