def test_display_map(client, capsys):
labels = Label.all(client, include=[Sensor])
assert len(labels) > 0
display_map = Label.display_map(client)
assert display_map is not None
label = labels[0]
values = [f(label) for f in display_map.values()]
assert values is not None
Label.display(client, [label])
out, err = capsys.readouterr()
assert label.short_id in out
