def test_battery_widget_list_batteries_multiple_bat(multiple_batteries_dir):
bw = BatteryWidget()
detected_batteries = list(bw.list_batteries())
detected_batteries.sort()
assert detected_batteries == ["BAT0", "BAT1"]
def test_battery_widget_list_batteries(one_battery_dir):
bw = BatteryWidget()
assert list(bw.list_batteries()) == ["BAT0", ]
