import pytest

import core.config
import modules.contrib.mpd

@pytest.fixture
def mpd_module():
    return modules.contrib.mpd.Module(config=core.config.Config([]), theme=None)

def _test_state(mocker, mpd_module, widget_name, expected_output):
    widget = mocker.Mock()
    widget.name = widget_name
    return mpd_module.state(widget) == expected_output

def test_states(mocker, mpd_module):
    assert _test_state(mocker, mpd_module, 'mpd.repeat', 'repeat-off')
    assert _test_state(mocker, mpd_module, 'mpd.shuffle', 'shuffle-off')
    assert _test_state(mocker, mpd_module, 'mpd.prev', 'prev')
    assert _test_state(mocker, mpd_module, 'mpd.next', 'next')

def test_no_host(mpd_module):
    assert mpd_module._hostcmd == ''

def test_host():
    module_with_host = modules.contrib.mpd.Module(config=core.config.Config(['-p', 'mpd.host=sample-host']), theme=None)
    assert module_with_host._hostcmd == ' -h sample-host'

def test_bad_layout():
    pytest.raises(KeyError, modules.contrib.mpd.Module, config=core.config.Config(['-p', 'mpd.layout="mpd.inexistent"']), theme=None)

def test_hidden_on_creation(mpd_module):
    assert mpd_module.hidden()

def test_update_calls_load_song(mocker, mpd_module):
    mocker.patch.object(mpd_module, '_load_song')
    mpd_module.update()
    mpd_module._load_song.assert_called_once()

def test_default_layout(mpd_module):
    assert mpd_module._layout == "mpd.prev mpd.main mpd.next mpd.shuffle mpd.repeat"