def test_bool(self):
        prio_set_list = event._PrioritizedSetList()

        assert bool(prio_set_list) is False

        prio_set_list.add(0, None)
        assert bool(prio_set_list) is True
def main(args):
    '''Populates an html template using JSON-formatted output from the
    Linux 'du' utility and prints the result'''
    html = '''