461 lines
14 KiB
Python
461 lines
14 KiB
Python
"""Tests for the storage helper."""
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import asyncio
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from datetime import timedelta
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import json
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from unittest.mock import Mock, patch
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import pytest
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from homeassistant.const import (
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EVENT_HOMEASSISTANT_FINAL_WRITE,
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EVENT_HOMEASSISTANT_STOP,
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)
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from homeassistant.core import CoreState
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from homeassistant.helpers import storage
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from homeassistant.util import dt
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from tests.common import async_fire_time_changed
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MOCK_VERSION = 1
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MOCK_VERSION_2 = 2
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MOCK_MINOR_VERSION_1 = 1
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MOCK_MINOR_VERSION_2 = 2
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MOCK_KEY = "storage-test"
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MOCK_DATA = {"hello": "world"}
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MOCK_DATA2 = {"goodbye": "cruel world"}
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@pytest.fixture
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def store(hass):
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"""Fixture of a store that prevents writing on Home Assistant stop."""
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return storage.Store(hass, MOCK_VERSION, MOCK_KEY)
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@pytest.fixture
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def store_v_1_1(hass):
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"""Fixture of a store that prevents writing on Home Assistant stop."""
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return storage.Store(
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hass, MOCK_VERSION, MOCK_KEY, minor_version=MOCK_MINOR_VERSION_1
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)
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@pytest.fixture
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def store_v_1_2(hass):
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"""Fixture of a store that prevents writing on Home Assistant stop."""
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return storage.Store(
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hass, MOCK_VERSION, MOCK_KEY, minor_version=MOCK_MINOR_VERSION_2
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)
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@pytest.fixture
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def store_v_2_1(hass):
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"""Fixture of a store that prevents writing on Home Assistant stop."""
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return storage.Store(
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hass, MOCK_VERSION_2, MOCK_KEY, minor_version=MOCK_MINOR_VERSION_1
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)
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async def test_loading(hass, store):
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"""Test we can save and load data."""
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await store.async_save(MOCK_DATA)
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data = await store.async_load()
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assert data == MOCK_DATA
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async def test_custom_encoder(hass):
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"""Test we can save and load data."""
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class JSONEncoder(json.JSONEncoder):
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"""Mock JSON encoder."""
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def default(self, o):
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"""Mock JSON encode method."""
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return "9"
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store = storage.Store(hass, MOCK_VERSION, MOCK_KEY, encoder=JSONEncoder)
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await store.async_save(Mock())
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data = await store.async_load()
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assert data == "9"
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async def test_loading_non_existing(hass, store):
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"""Test we can save and load data."""
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with patch("homeassistant.util.json.open", side_effect=FileNotFoundError):
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data = await store.async_load()
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assert data is None
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async def test_loading_parallel(hass, store, hass_storage, caplog):
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"""Test we can save and load data."""
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hass_storage[store.key] = {"version": MOCK_VERSION, "data": MOCK_DATA}
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results = await asyncio.gather(store.async_load(), store.async_load())
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assert results[0] == MOCK_DATA
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assert results[0] is results[1]
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assert caplog.text.count(f"Loading data for {store.key}")
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async def test_saving_with_delay(hass, store, hass_storage):
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"""Test saving data after a delay."""
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store.async_delay_save(lambda: MOCK_DATA, 1)
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assert store.key not in hass_storage
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async_fire_time_changed(hass, dt.utcnow() + timedelta(seconds=1))
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await hass.async_block_till_done()
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assert hass_storage[store.key] == {
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"version": MOCK_VERSION,
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"minor_version": 1,
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"key": MOCK_KEY,
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"data": MOCK_DATA,
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}
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async def test_saving_on_final_write(hass, hass_storage):
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"""Test delayed saves trigger when we quit Home Assistant."""
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store = storage.Store(hass, MOCK_VERSION, MOCK_KEY)
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store.async_delay_save(lambda: MOCK_DATA, 5)
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assert store.key not in hass_storage
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hass.bus.async_fire(EVENT_HOMEASSISTANT_STOP)
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hass.state = CoreState.stopping
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await hass.async_block_till_done()
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async_fire_time_changed(hass, dt.utcnow() + timedelta(seconds=10))
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await hass.async_block_till_done()
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assert store.key not in hass_storage
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hass.bus.async_fire(EVENT_HOMEASSISTANT_FINAL_WRITE)
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await hass.async_block_till_done()
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assert hass_storage[store.key] == {
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"version": MOCK_VERSION,
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"minor_version": 1,
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"key": MOCK_KEY,
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"data": MOCK_DATA,
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}
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async def test_not_delayed_saving_while_stopping(hass, hass_storage):
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"""Test delayed saves don't write after the stop event has fired."""
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store = storage.Store(hass, MOCK_VERSION, MOCK_KEY)
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hass.bus.async_fire(EVENT_HOMEASSISTANT_STOP)
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await hass.async_block_till_done()
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hass.state = CoreState.stopping
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store.async_delay_save(lambda: MOCK_DATA, 1)
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async_fire_time_changed(hass, dt.utcnow() + timedelta(seconds=2))
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await hass.async_block_till_done()
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assert store.key not in hass_storage
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async def test_not_delayed_saving_after_stopping(hass, hass_storage):
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"""Test delayed saves don't write after stop if issued before stopping Home Assistant."""
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store = storage.Store(hass, MOCK_VERSION, MOCK_KEY)
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store.async_delay_save(lambda: MOCK_DATA, 10)
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assert store.key not in hass_storage
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hass.bus.async_fire(EVENT_HOMEASSISTANT_STOP)
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hass.state = CoreState.stopping
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await hass.async_block_till_done()
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assert store.key not in hass_storage
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async_fire_time_changed(hass, dt.utcnow() + timedelta(seconds=15))
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await hass.async_block_till_done()
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assert store.key not in hass_storage
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async def test_not_saving_while_stopping(hass, hass_storage):
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"""Test saves don't write when stopping Home Assistant."""
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store = storage.Store(hass, MOCK_VERSION, MOCK_KEY)
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hass.state = CoreState.stopping
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await store.async_save(MOCK_DATA)
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assert store.key not in hass_storage
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async def test_loading_while_delay(hass, store, hass_storage):
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"""Test we load new data even if not written yet."""
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await store.async_save({"delay": "no"})
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assert hass_storage[store.key] == {
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"version": MOCK_VERSION,
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"minor_version": 1,
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"key": MOCK_KEY,
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"data": {"delay": "no"},
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}
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store.async_delay_save(lambda: {"delay": "yes"}, 1)
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assert hass_storage[store.key] == {
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"version": MOCK_VERSION,
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"minor_version": 1,
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"key": MOCK_KEY,
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"data": {"delay": "no"},
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}
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data = await store.async_load()
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assert data == {"delay": "yes"}
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async def test_writing_while_writing_delay(hass, store, hass_storage):
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"""Test a write while a write with delay is active."""
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store.async_delay_save(lambda: {"delay": "yes"}, 1)
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assert store.key not in hass_storage
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await store.async_save({"delay": "no"})
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assert hass_storage[store.key] == {
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"version": MOCK_VERSION,
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"minor_version": 1,
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"key": MOCK_KEY,
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"data": {"delay": "no"},
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}
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async_fire_time_changed(hass, dt.utcnow() + timedelta(seconds=1))
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await hass.async_block_till_done()
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assert hass_storage[store.key] == {
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"version": MOCK_VERSION,
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"minor_version": 1,
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"key": MOCK_KEY,
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"data": {"delay": "no"},
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}
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data = await store.async_load()
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assert data == {"delay": "no"}
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async def test_multiple_delay_save_calls(hass, store, hass_storage):
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"""Test a write while a write with changing delays."""
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store.async_delay_save(lambda: {"delay": "yes"}, 1)
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store.async_delay_save(lambda: {"delay": "yes"}, 2)
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store.async_delay_save(lambda: {"delay": "yes"}, 3)
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assert store.key not in hass_storage
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await store.async_save({"delay": "no"})
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assert hass_storage[store.key] == {
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"version": MOCK_VERSION,
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"minor_version": 1,
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"key": MOCK_KEY,
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"data": {"delay": "no"},
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}
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async_fire_time_changed(hass, dt.utcnow() + timedelta(seconds=1))
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await hass.async_block_till_done()
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assert hass_storage[store.key] == {
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"version": MOCK_VERSION,
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"minor_version": 1,
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"key": MOCK_KEY,
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"data": {"delay": "no"},
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}
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data = await store.async_load()
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assert data == {"delay": "no"}
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async def test_multiple_save_calls(hass, store, hass_storage):
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"""Test multiple write tasks."""
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assert store.key not in hass_storage
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tasks = [store.async_save({"savecount": savecount}) for savecount in range(6)]
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await asyncio.gather(*tasks)
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assert hass_storage[store.key] == {
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"version": MOCK_VERSION,
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"minor_version": 1,
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"key": MOCK_KEY,
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"data": {"savecount": 5},
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}
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data = await store.async_load()
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assert data == {"savecount": 5}
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async def test_migrator_no_existing_config(hass, store, hass_storage):
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"""Test migrator with no existing config."""
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with patch("os.path.isfile", return_value=False), patch.object(
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store, "async_load", return_value={"cur": "config"}
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):
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data = await storage.async_migrator(hass, "old-path", store)
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assert data == {"cur": "config"}
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assert store.key not in hass_storage
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async def test_migrator_existing_config(hass, store, hass_storage):
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"""Test migrating existing config."""
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with patch("os.path.isfile", return_value=True), patch("os.remove") as mock_remove:
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data = await storage.async_migrator(
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hass, "old-path", store, old_conf_load_func=lambda _: {"old": "config"}
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)
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assert len(mock_remove.mock_calls) == 1
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assert data == {"old": "config"}
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assert hass_storage[store.key] == {
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"key": MOCK_KEY,
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"version": MOCK_VERSION,
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"minor_version": 1,
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"data": data,
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}
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async def test_migrator_transforming_config(hass, store, hass_storage):
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"""Test migrating config to new format."""
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async def old_conf_migrate_func(old_config):
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"""Migrate old config to new format."""
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return {"new": old_config["old"]}
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with patch("os.path.isfile", return_value=True), patch("os.remove") as mock_remove:
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data = await storage.async_migrator(
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hass,
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"old-path",
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store,
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old_conf_migrate_func=old_conf_migrate_func,
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old_conf_load_func=lambda _: {"old": "config"},
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)
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assert len(mock_remove.mock_calls) == 1
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assert data == {"new": "config"}
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assert hass_storage[store.key] == {
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"key": MOCK_KEY,
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"version": MOCK_VERSION,
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"minor_version": 1,
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"data": data,
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}
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async def test_minor_version_default(hass, store, hass_storage):
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"""Test minor version default."""
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await store.async_save(MOCK_DATA)
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assert hass_storage[store.key]["minor_version"] == 1
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async def test_minor_version(hass, store_v_1_2, hass_storage):
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"""Test minor version."""
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await store_v_1_2.async_save(MOCK_DATA)
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assert hass_storage[store_v_1_2.key]["minor_version"] == MOCK_MINOR_VERSION_2
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async def test_migrate_major_not_implemented_raises(hass, store, store_v_2_1):
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"""Test migrating between major versions fails if not implemented."""
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await store_v_2_1.async_save(MOCK_DATA)
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with pytest.raises(NotImplementedError):
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await store.async_load()
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async def test_migrate_minor_not_implemented(
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hass, hass_storage, store_v_1_1, store_v_1_2
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):
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"""Test migrating between minor versions does not fail if not implemented."""
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assert store_v_1_1.key == store_v_1_2.key
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await store_v_1_1.async_save(MOCK_DATA)
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assert hass_storage[store_v_1_1.key] == {
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"key": MOCK_KEY,
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"version": MOCK_VERSION,
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"minor_version": MOCK_MINOR_VERSION_1,
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"data": MOCK_DATA,
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}
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data = await store_v_1_2.async_load()
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assert hass_storage[store_v_1_1.key]["data"] == data
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await store_v_1_2.async_save(MOCK_DATA)
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assert hass_storage[store_v_1_2.key] == {
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"key": MOCK_KEY,
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"version": MOCK_VERSION,
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"minor_version": MOCK_MINOR_VERSION_2,
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"data": MOCK_DATA,
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}
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async def test_migration(hass, hass_storage, store_v_1_2):
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"""Test migration."""
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calls = 0
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class CustomStore(storage.Store):
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async def _async_migrate_func(
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self, old_major_version, old_minor_version, old_data: dict
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):
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nonlocal calls
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calls += 1
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assert old_major_version == store_v_1_2.version
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assert old_minor_version == store_v_1_2.minor_version
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return old_data
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await store_v_1_2.async_save(MOCK_DATA)
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assert hass_storage[store_v_1_2.key] == {
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"key": MOCK_KEY,
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"version": MOCK_VERSION,
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"minor_version": MOCK_MINOR_VERSION_2,
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"data": MOCK_DATA,
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}
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assert calls == 0
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legacy_store = CustomStore(hass, 2, store_v_1_2.key, minor_version=1)
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data = await legacy_store.async_load()
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assert calls == 1
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assert hass_storage[store_v_1_2.key]["data"] == data
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await legacy_store.async_save(MOCK_DATA)
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assert hass_storage[legacy_store.key] == {
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"key": MOCK_KEY,
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"version": 2,
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"minor_version": 1,
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"data": MOCK_DATA,
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}
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async def test_legacy_migration(hass, hass_storage, store_v_1_2):
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"""Test legacy migration method signature."""
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calls = 0
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class LegacyStore(storage.Store):
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async def _async_migrate_func(self, old_version, old_data: dict):
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nonlocal calls
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calls += 1
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assert old_version == store_v_1_2.version
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return old_data
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await store_v_1_2.async_save(MOCK_DATA)
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assert hass_storage[store_v_1_2.key] == {
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"key": MOCK_KEY,
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"version": MOCK_VERSION,
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"minor_version": MOCK_MINOR_VERSION_2,
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"data": MOCK_DATA,
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}
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assert calls == 0
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legacy_store = LegacyStore(hass, 2, store_v_1_2.key, minor_version=1)
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data = await legacy_store.async_load()
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assert calls == 1
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assert hass_storage[store_v_1_2.key]["data"] == data
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await legacy_store.async_save(MOCK_DATA)
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assert hass_storage[legacy_store.key] == {
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"key": MOCK_KEY,
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"version": 2,
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"minor_version": 1,
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"data": MOCK_DATA,
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}
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async def test_changing_delayed_written_data(hass, store, hass_storage):
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"""Test changing data that is written with delay."""
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data_to_store = {"hello": "world"}
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store.async_delay_save(lambda: data_to_store, 1)
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assert store.key not in hass_storage
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loaded_data = await store.async_load()
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assert loaded_data == data_to_store
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assert loaded_data is not data_to_store
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loaded_data["hello"] = "earth"
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async_fire_time_changed(hass, dt.utcnow() + timedelta(seconds=1))
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await hass.async_block_till_done()
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assert hass_storage[store.key] == {
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"version": MOCK_VERSION,
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"minor_version": 1,
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"key": MOCK_KEY,
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"data": {"hello": "world"},
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}
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