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 install_autopkgtest_results_formatter():
    subprocess.check_call(
        ["sudo", "snap", "install", "autopkgtest-results-formatter", "--edge"]
    )