from breadtube_bot.config import Config

import pytest


def test_empty():
    with pytest.raises(RuntimeError, match='Cannot load config: empty input'):
        Config.from_str('')


def test_wrong_header():
    with pytest.raises(RuntimeError, match='Cannot load config: first line is not "config"'):
        Config.from_str('connfig')


def test_lacking_key():
    expected_config = Config(bot_role='test-role', request_timeout=5.5)
    config = Config.from_str(
        'config\n'
        f'request_timeout={expected_config.request_timeout}\n'
        f'bot_role={expected_config.bot_role}')
    assert config == expected_config


def test_wrong_key():
    with pytest.raises(RuntimeError, match=('Invalid config: invalid key bot_channel_init at line 2')):
        Config.from_str('config\nrequest_timeout=3.\nbot_channel_init=2')


def test_duplicated_key():
    with pytest.raises(RuntimeError, match=('Invalid config: duplicated key request_timeout at line 3')):
        Config.from_str('config\nrequest_timeout=3.\nbot_channel_init_retries=2\nrequest_timeout=5.')


def test_correct_config():
    expected_config = Config(bot_channel='test-channel', bot_role='test-role', bot_channel_init_retries=298,
                             request_timeout=5.5)
    config = Config.from_str(
        'config\n'
        f'request_timeout={expected_config.request_timeout}\n'
        f'bot_channel_init_retries={expected_config.bot_channel_init_retries}\n'
        f'bot_channel={expected_config.bot_channel}\n'
        f'bot_role={expected_config.bot_role}')
    assert config == expected_config