import pytest
from click.testing import CliRunner
from mqtt_home.cli import cli


def test_device_list_empty(monkeypatch):
    runner = CliRunner()

    async def mock_init():
        pass

    async def mock_list(db):
        return []

    monkeypatch.setattr("mqtt_home.cli.init_db", mock_init)
    monkeypatch.setattr("mqtt_home.cli.list_devices", mock_list)

    result = runner.invoke(cli, ["device", "list"])
    assert result.exit_code == 0
    assert "暂无设备" in result.output


def test_cli_groups():
    runner = CliRunner()
    result = runner.invoke(cli, ["--help"])
    assert "device" in result.output
    assert "broker" in result.output