from __future__ import absolute_import, unicode_literals

import unittest

from mopidy import config, ext


class ExtensionTest(unittest.TestCase):

    def setUp(self):  # noqa: N802
        self.ext = ext.Extension()

    def test_dist_name_is_none(self):
        self.assertIsNone(self.ext.dist_name)

    def test_ext_name_is_none(self):
        self.assertIsNone(self.ext.ext_name)

    def test_version_is_none(self):
        self.assertIsNone(self.ext.version)

    def test_get_default_config_raises_not_implemented(self):
        with self.assertRaises(NotImplementedError):
            self.ext.get_default_config()

    def test_get_config_schema_returns_extension_schema(self):
        schema = self.ext.get_config_schema()
        self.assertIsInstance(schema['enabled'], config.Boolean)

    def test_validate_environment_does_nothing_by_default(self):
        self.assertIsNone(self.ext.validate_environment())

    def test_setup_raises_not_implemented(self):
        with self.assertRaises(NotImplementedError):
            self.ext.setup(None)