home-assistant-core/tests/util/test_read_only_dict.py
2024-05-26 23:05:45 -04:00

41 lines
933 B
Python

"""Test read only dictionary."""
import copy
import json
import pytest
from homeassistant.util.read_only_dict import ReadOnlyDict
def test_read_only_dict() -> None:
"""Test read only dictionary."""
data = ReadOnlyDict({"hello": "world"})
with pytest.raises(RuntimeError):
data["hello"] = "universe"
with pytest.raises(RuntimeError):
data["other_key"] = "universe"
with pytest.raises(RuntimeError):
data.pop("hello")
with pytest.raises(RuntimeError):
data.popitem()
with pytest.raises(RuntimeError):
data.clear()
with pytest.raises(RuntimeError):
data.update({"yo": "yo"})
with pytest.raises(RuntimeError):
data.setdefault("yo", "yo")
assert isinstance(data, dict)
assert dict(data) == {"hello": "world"}
assert json.dumps(data) == json.dumps({"hello": "world"})
assert copy.deepcopy(data) == {"hello": "world"}