"""Test the package's configuration module."""

import pytest

from urban_meal_delivery import _config as config_mod  # noqa:WPS450


envs = ['production', 'testing']


@pytest.mark.parametrize('env', envs)
def test_config_repr(env):
    """Config objects have the text representation '<configuration>'."""
    config = config_mod.get_config(env)

    assert str(config) == '<configuration>'


def test_invalid_config():
    """There are only 'production' and 'testing' configurations."""
    with pytest.raises(ValueError, match="'production' or 'testing'"):
        config_mod.get_config('invalid')


@pytest.mark.parametrize('env', envs)
def test_database_uri_set(env, monkeypatch):
    """Package does NOT emit warning if DATABASE_URI is set."""
    uri = 'postgresql://user:password@localhost/db'
    monkeypatch.setattr(config_mod.ProductionConfig, 'DATABASE_URI', uri)
    monkeypatch.setattr(config_mod.TestingConfig, 'DATABASE_URI', uri)

    with pytest.warns(None) as record:
        config_mod.get_config(env)

    assert len(record) == 0  # noqa:WPS441,WPS507


@pytest.mark.parametrize('env', envs)
def test_no_database_uri_set(env, monkeypatch):
    """Package does not work without DATABASE_URI set in the environment."""
    monkeypatch.setattr(config_mod.ProductionConfig, 'DATABASE_URI', None)
    monkeypatch.setattr(config_mod.TestingConfig, 'DATABASE_URI', None)

    with pytest.warns(UserWarning, match='no DATABASE_URI'):
        config_mod.get_config(env)