from av.dictionary import Dictionary

from .common import TestCase


class TestDictionary(TestCase):
    def test_basics(self):

        d = Dictionary()
        d["key"] = "value"

        self.assertEqual(d["key"], "value")
        self.assertIn("key", d)
        self.assertEqual(len(d), 1)
        self.assertEqual(list(d), ["key"])

        self.assertEqual(d.pop("key"), "value")
        self.assertRaises(KeyError, d.pop, "key")
        self.assertEqual(len(d), 0)