core/tests/helpers/test_instance_id.py

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"""Tests for instance ID helper."""
from tests.async_mock import patch
async def test_get_id_empty(hass, hass_storage):
"""Get unique ID."""
uuid = await hass.helpers.instance_id.async_get()
assert uuid is not None
# Assert it's stored
assert hass_storage["core.uuid"]["data"]["uuid"] == uuid
async def test_get_id_migrate(hass, hass_storage):
"""Migrate existing file."""
with patch(
"homeassistant.util.json.load_json", return_value={"uuid": "1234"}
), patch("os.path.isfile", return_value=True), patch("os.remove") as mock_remove:
uuid = await hass.helpers.instance_id.async_get()
assert uuid == "1234"
# Assert it's stored
assert hass_storage["core.uuid"]["data"]["uuid"] == uuid
# assert old deleted
assert len(mock_remove.mock_calls) == 1