import pytest

from av.dictionary import Dictionary


def test_dictionary() -> None:
    d = Dictionary()
    d["key"] = "value"

    assert d["key"] == "value"
    assert "key" in d
    assert len(d) == 1
    assert list(d) == ["key"]

    assert d.pop("key") == "value"
    pytest.raises(KeyError, d.pop, "key")
    assert len(d) == 0