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https://github.com/Akkudoktor-EOS/EOS.git
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80bfe4d0f0
* Move the caching module to core. Add an in memory cache that for caching function and method results during an energy management run (optimization run). Two decorators are provided for methods and functions. * Improve the file cache store by load and save functions. Make EOS load the cache file store on startup and save it on shutdown. Add a cyclic task that cleans the cache file store from outdated cache files. * Improve startup of EOSdash by EOS Make EOS starting EOSdash adhere to path configuration given in EOS. The whole environment from EOS is now passed to EOSdash. Should also prevent test errors due to unwanted/ wrong config file creation. Both servers now provide a health endpoint that can be used to detect whether the server is running. This is also used for testing now. * Improve startup of EOS EOS now has got an energy management task that runs shortly after startup. It tries to execute energy management runs with predictions newly fetched or initialized from cached data on first run. * Improve shutdown of EOS EOS has now a shutdown task that shuts EOS down gracefully with some time delay to allow REST API requests for shutdwon or restart to be fully serviced. * Improve EMS Add energy management task for repeated energy management controlled by startup delay and interval configuration parameters. Translate EnergieManagementSystem to english EnergyManagement. * Add administration endpoints - endpoints to control caching from REST API. - endpoints to control server restart (will not work on Windows) and shutdown from REST API * Improve doc generation Use "\n" linenend convention also on Windows when generating doc files. Replace Windows specific 127.0.0.1 address by standard 0.0.0.0. * Improve test support (to be able to test caching) - Add system test option to pytest for running tests with "real" resources - Add new test fixture to start server for test class and test function - Make kill signal adapt to Windows/ Linux - Use consistently "\n" for lineends when writing text files in doc test - Fix test_logging under Windows - Fix conftest config_default_dirs test fixture under Windows From @Lasall * Improve Windows support - Use 127.0.0.1 as default config host (model defaults) and addionally redirect 0.0.0.0 to localhost on Windows (because default config file still has 0.0.0.0). - Update install/startup instructions as package installation is required atm. Signed-off-by: Bobby Noelte <b0661n0e17e@gmail.com>
695 lines
27 KiB
Python
695 lines
27 KiB
Python
import io
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import json
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import pickle
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import tempfile
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from datetime import date, datetime, timedelta
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from pathlib import Path
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from time import sleep
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from unittest.mock import MagicMock, patch
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import cachebox
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import pytest
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from akkudoktoreos.core.cache import (
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CacheFileRecord,
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CacheFileStore,
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CacheUntilUpdateStore,
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cache_in_file,
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cache_until_update,
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cachemethod_until_update,
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)
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from akkudoktoreos.utils.datetimeutil import compare_datetimes, to_datetime, to_duration
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# ---------------------------------
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# In-Memory Caching Functionality
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# ---------------------------------
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# Fixtures for testing
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@pytest.fixture
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def cache_until_update_store():
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"""Ensures CacheUntilUpdateStore is reset between tests."""
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cache = CacheUntilUpdateStore()
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CacheUntilUpdateStore().clear()
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assert len(cache) == 0
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return cache
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class TestCacheUntilUpdateStore:
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def test_cache_initialization(self, cache_until_update_store):
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"""Test that CacheUntilUpdateStore initializes with the correct properties."""
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cache = CacheUntilUpdateStore()
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assert isinstance(cache.cache, cachebox.LRUCache)
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assert cache.maxsize == 100
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assert len(cache) == 0
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def test_singleton_behavior(self, cache_until_update_store):
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"""Test that CacheUntilUpdateStore is a singleton."""
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cache1 = CacheUntilUpdateStore()
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cache2 = CacheUntilUpdateStore()
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assert cache1 is cache2
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def test_cache_storage(self, cache_until_update_store):
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"""Test that items can be added and retrieved from the cache."""
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cache = CacheUntilUpdateStore()
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cache["key1"] = "value1"
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assert cache["key1"] == "value1"
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assert len(cache) == 1
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def test_cache_getattr_invalid_method(self, cache_until_update_store):
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"""Test that accessing an invalid method raises an AttributeError."""
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with pytest.raises(AttributeError):
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CacheUntilUpdateStore().non_existent_method() # This should raise AttributeError
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class TestCacheUntilUpdateDecorators:
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def test_cachemethod_until_update(self, cache_until_update_store):
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"""Test that cachemethod_until_update caches method results."""
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class MyClass:
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@cachemethod_until_update
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def compute(self, value: int) -> int:
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return value * 2
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obj = MyClass()
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# Call method and assert caching
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assert CacheUntilUpdateStore.miss_count == 0
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assert CacheUntilUpdateStore.hit_count == 0
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result1 = obj.compute(5)
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assert CacheUntilUpdateStore.miss_count == 1
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assert CacheUntilUpdateStore.hit_count == 0
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result2 = obj.compute(5)
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assert CacheUntilUpdateStore.miss_count == 1
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assert CacheUntilUpdateStore.hit_count == 1
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assert result1 == result2
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def test_cache_until_update(self, cache_until_update_store):
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"""Test that cache_until_update caches function results."""
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@cache_until_update
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def compute(value: int) -> int:
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return value * 3
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# Call function and assert caching
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result1 = compute(4)
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assert CacheUntilUpdateStore.last_event == cachebox.EVENT_MISS
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result2 = compute(4)
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assert CacheUntilUpdateStore.last_event == cachebox.EVENT_HIT
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assert result1 == result2
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def test_cache_with_different_arguments(self, cache_until_update_store):
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"""Test that caching works for different arguments."""
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class MyClass:
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@cachemethod_until_update
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def compute(self, value: int) -> int:
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return value * 2
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obj = MyClass()
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assert CacheUntilUpdateStore.miss_count == 0
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result1 = obj.compute(3)
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assert CacheUntilUpdateStore.last_event == cachebox.EVENT_MISS
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assert CacheUntilUpdateStore.miss_count == 1
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result2 = obj.compute(5)
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assert CacheUntilUpdateStore.last_event == cachebox.EVENT_MISS
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assert CacheUntilUpdateStore.miss_count == 2
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assert result1 == 6
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assert result2 == 10
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def test_cache_clearing(self, cache_until_update_store):
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"""Test that cache is cleared between EMS update cycles."""
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class MyClass:
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@cachemethod_until_update
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def compute(self, value: int) -> int:
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return value * 2
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obj = MyClass()
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obj.compute(5)
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# Clear cache
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CacheUntilUpdateStore().clear()
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with pytest.raises(KeyError):
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_ = CacheUntilUpdateStore()["<invalid>"]
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def test_decorator_works_for_standalone_function(self, cache_until_update_store):
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"""Test that cache_until_update works with standalone functions."""
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@cache_until_update
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def add(a: int, b: int) -> int:
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return a + b
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assert CacheUntilUpdateStore.miss_count == 0
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assert CacheUntilUpdateStore.hit_count == 0
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result1 = add(1, 2)
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assert CacheUntilUpdateStore.miss_count == 1
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assert CacheUntilUpdateStore.hit_count == 0
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result2 = add(1, 2)
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assert CacheUntilUpdateStore.miss_count == 1
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assert CacheUntilUpdateStore.hit_count == 1
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assert result1 == result2
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# -----------------------------
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# CacheFileStore
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# -----------------------------
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@pytest.fixture
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def temp_store_file():
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with tempfile.NamedTemporaryFile(delete=False) as temp_file:
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yield Path(temp_file.file.name)
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# temp_file.unlink()
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@pytest.fixture
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def cache_file_store(temp_store_file):
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"""A pytest fixture that creates a new CacheFileStore instance for testing."""
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cache = CacheFileStore()
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cache._store_file = temp_store_file
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cache.clear(clear_all=True)
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assert len(cache._store) == 0
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return cache
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class TestCacheFileStore:
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def test_generate_cache_file_key(self, cache_file_store):
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"""Test cache file key generation based on URL and date."""
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key = "http://example.com"
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# Provide until date - assure until_dt is used.
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until_dt = to_datetime("2024-10-01")
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cache_file_key, cache_file_until_dt, ttl_duration = (
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cache_file_store._generate_cache_file_key(key=key, until_datetime=until_dt)
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)
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assert cache_file_key is not None
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assert compare_datetimes(cache_file_until_dt, until_dt).equal
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# Provide until date again - assure same key is generated.
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cache_file_key1, cache_file_until_dt1, ttl_duration1 = (
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cache_file_store._generate_cache_file_key(key=key, until_datetime=until_dt)
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)
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assert cache_file_key1 == cache_file_key
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assert compare_datetimes(cache_file_until_dt1, until_dt).equal
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# Provide no until date - assure today EOD is used.
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no_until_dt = to_datetime().end_of("day")
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cache_file_key, cache_file_until_dt, ttl_duration = (
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cache_file_store._generate_cache_file_key(key)
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)
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assert cache_file_key is not None
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assert compare_datetimes(cache_file_until_dt, no_until_dt).equal
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# Provide with_ttl - assure until_dt is used.
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until_dt = to_datetime().add(hours=1)
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cache_file_key, cache_file_until_dt, ttl_duration = (
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cache_file_store._generate_cache_file_key(key, with_ttl="1 hour")
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)
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assert cache_file_key is not None
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assert compare_datetimes(cache_file_until_dt, until_dt).approximately_equal
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assert ttl_duration == to_duration("1 hour")
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# Provide with_ttl again - assure same key is generated.
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until_dt = to_datetime().add(hours=1)
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cache_file_key1, cache_file_until_dt1, ttl_duration1 = (
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cache_file_store._generate_cache_file_key(key=key, with_ttl="1 hour")
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)
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assert cache_file_key1 == cache_file_key
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assert compare_datetimes(cache_file_until_dt1, until_dt).approximately_equal
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assert ttl_duration1 == to_duration("1 hour")
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# Provide different with_ttl - assure different key is generated.
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until_dt = to_datetime().add(hours=1, minutes=1)
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cache_file_key2, cache_file_until_dt2, ttl_duration2 = (
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cache_file_store._generate_cache_file_key(key=key, with_ttl="1 hour 1 minute")
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)
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assert cache_file_key2 != cache_file_key
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assert compare_datetimes(cache_file_until_dt2, until_dt).approximately_equal
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assert ttl_duration2 == to_duration("1 hour 1 minute")
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def test_get_file_path(self, cache_file_store):
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"""Test get file path from cache file object."""
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cache_file = cache_file_store.create("test_file", mode="w+", suffix=".txt")
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file_path = cache_file_store._get_file_path(cache_file)
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assert file_path is not None
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def test_until_datetime_by_options(self, cache_file_store):
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"""Test until datetime calculation based on options."""
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now = to_datetime()
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# Test with until_datetime
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result, ttl_duration = cache_file_store._until_datetime_by_options(until_datetime=now)
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assert result == now
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assert ttl_duration is None
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# -- From now on we expect a until_datetime in one hour
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ttl_duration_expected = to_duration("1 hour")
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# Test with with_ttl as timedelta
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until_datetime_expected = to_datetime().add(hours=1)
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ttl = timedelta(hours=1)
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result, ttl_duration = cache_file_store._until_datetime_by_options(with_ttl=ttl)
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assert compare_datetimes(result, until_datetime_expected).approximately_equal
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assert ttl_duration == ttl_duration_expected
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# Test with with_ttl as int (seconds)
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until_datetime_expected = to_datetime().add(hours=1)
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ttl_seconds = 3600
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result, ttl_duration = cache_file_store._until_datetime_by_options(with_ttl=ttl_seconds)
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assert compare_datetimes(result, until_datetime_expected).approximately_equal
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assert ttl_duration == ttl_duration_expected
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# Test with with_ttl as string ("1 hour")
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until_datetime_expected = to_datetime().add(hours=1)
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ttl_string = "1 hour"
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result, ttl_duration = cache_file_store._until_datetime_by_options(with_ttl=ttl_string)
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assert compare_datetimes(result, until_datetime_expected).approximately_equal
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assert ttl_duration == ttl_duration_expected
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# -- From now on we expect a until_datetime today at end of day
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until_datetime_expected = to_datetime().end_of("day")
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ttl_duration_expected = None
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# Test default case (end of today)
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result, ttl_duration = cache_file_store._until_datetime_by_options()
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assert compare_datetimes(result, until_datetime_expected).equal
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assert ttl_duration == ttl_duration_expected
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# -- From now on we expect a until_datetime in one day at end of day
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until_datetime_expected = to_datetime().add(days=1).end_of("day")
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assert ttl_duration == ttl_duration_expected
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# Test with until_date as date
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until_date = date.today() + timedelta(days=1)
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result, ttl_duration = cache_file_store._until_datetime_by_options(until_date=until_date)
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assert compare_datetimes(result, until_datetime_expected).equal
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assert ttl_duration == ttl_duration_expected
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# -- Test with multiple options (until_datetime takes precedence)
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specific_datetime = to_datetime().add(days=2)
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result, ttl_duration = cache_file_store._until_datetime_by_options(
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until_date=to_datetime().add(days=1).date(),
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until_datetime=specific_datetime,
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with_ttl=ttl,
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)
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assert compare_datetimes(result, specific_datetime).equal
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assert ttl_duration is None
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# Test with invalid inputs
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with pytest.raises(ValueError):
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cache_file_store._until_datetime_by_options(until_date="invalid-date")
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with pytest.raises(ValueError):
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cache_file_store._until_datetime_by_options(with_ttl="invalid-ttl")
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with pytest.raises(ValueError):
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cache_file_store._until_datetime_by_options(until_datetime="invalid-datetime")
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def test_create_cache_file(self, cache_file_store):
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"""Test the creation of a cache file and ensure it is stored correctly."""
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# Create a cache file for today's date
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cache_file = cache_file_store.create("test_file", mode="w+", suffix=".txt")
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# Check that the file exists in the store and is a file-like object
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assert cache_file is not None
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assert hasattr(cache_file, "name")
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assert cache_file.name.endswith(".txt")
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# Write some data to the file
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cache_file.seek(0)
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cache_file.write("Test data")
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cache_file.seek(0) # Reset file pointer
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assert cache_file.read() == "Test data"
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def test_get_cache_file(self, cache_file_store):
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"""Test retrieving an existing cache file by key."""
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# Create a cache file and write data to it
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cache_file = cache_file_store.create("test_file", mode="w+")
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cache_file.seek(0)
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cache_file.write("Test data")
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cache_file.seek(0)
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# Retrieve the cache file and verify the data
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retrieved_file = cache_file_store.get("test_file")
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assert retrieved_file is not None
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retrieved_file.seek(0)
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assert retrieved_file.read() == "Test data"
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def test_set_custom_file_object(self, cache_file_store):
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"""Test setting a custom file-like object (BytesIO or StringIO) in the store."""
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# Create a BytesIO object and set it into the cache
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file_obj = io.BytesIO(b"Binary data")
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cache_file_store.set("binary_file", file_obj)
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# Retrieve the file from the store
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retrieved_file = cache_file_store.get("binary_file")
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assert isinstance(retrieved_file, io.BytesIO)
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retrieved_file.seek(0)
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assert retrieved_file.read() == b"Binary data"
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def test_delete_cache_file(self, cache_file_store):
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"""Test deleting a cache file from the store."""
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# Create multiple cache files
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cache_file1 = cache_file_store.create("file1")
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assert hasattr(cache_file1, "name")
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cache_file2 = cache_file_store.create("file2")
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assert hasattr(cache_file2, "name")
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# Ensure the files are in the store
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assert cache_file_store.get("file1") is cache_file1
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assert cache_file_store.get("file2") is cache_file2
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# Delete cache files
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cache_file_store.delete("file1")
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cache_file_store.delete("file2")
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# Ensure the store is empty
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assert cache_file_store.get("file1") is None
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assert cache_file_store.get("file2") is None
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def test_clear_all_cache_files(self, cache_file_store):
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"""Test clearing all cache files from the store."""
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# Create multiple cache files
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cache_file1 = cache_file_store.create("file1")
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assert hasattr(cache_file1, "name")
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cache_file2 = cache_file_store.create("file2")
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assert hasattr(cache_file2, "name")
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# Ensure the files are in the store
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assert cache_file_store.get("file1") is cache_file1
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assert cache_file_store.get("file2") is cache_file2
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current_store = cache_file_store.current_store()
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assert current_store != {}
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# Clear all cache files
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cache_file_store.clear(clear_all=True)
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# Ensure the store is empty
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assert cache_file_store.get("file1") is None
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assert cache_file_store.get("file2") is None
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current_store = cache_file_store.current_store()
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assert current_store == {}
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def test_clear_cache_files_by_date(self, cache_file_store):
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"""Test clearing cache files from the store by date."""
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# Create multiple cache files
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cache_file1 = cache_file_store.create("file1")
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assert hasattr(cache_file1, "name")
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cache_file2 = cache_file_store.create("file2")
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assert hasattr(cache_file2, "name")
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# Ensure the files are in the store
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assert cache_file_store.get("file1") is cache_file1
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assert cache_file_store.get("file2") is cache_file2
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# Clear cache files that are older than today
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cache_file_store.clear(before_datetime=to_datetime().start_of("day"))
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# Ensure the files are in the store
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assert cache_file_store.get("file1") is cache_file1
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assert cache_file_store.get("file2") is cache_file2
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# Clear cache files that are older than tomorrow
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cache_file_store.clear(before_datetime=datetime.now() + timedelta(days=1))
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# Ensure the store is empty
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assert cache_file_store.get("file1") is None
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assert cache_file_store.get("file2") is None
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def test_cache_file_with_date(self, cache_file_store):
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"""Test creating and retrieving cache files with a specific date."""
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# Use a specific date for cache file creation
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specific_date = datetime(2023, 10, 10)
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cache_file = cache_file_store.create("dated_file", mode="w+", until_date=specific_date)
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# Write data to the cache file
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cache_file.write("Dated data")
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cache_file.seek(0)
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# Retrieve the cache file with the specific date
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retrieved_file = cache_file_store.get("dated_file", until_date=specific_date)
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assert retrieved_file is not None
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retrieved_file.seek(0)
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assert retrieved_file.read() == "Dated data"
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def test_recreate_existing_cache_file(self, cache_file_store):
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"""Test creating a cache file with an existing key does not overwrite the existing file."""
|
|
# Create a cache file
|
|
cache_file = cache_file_store.create("test_file", mode="w+")
|
|
cache_file.write("Original data")
|
|
cache_file.seek(0)
|
|
|
|
# Attempt to recreate the same file (should return the existing one)
|
|
new_file = cache_file_store.create("test_file")
|
|
assert new_file is cache_file # Should be the same object
|
|
new_file.seek(0)
|
|
assert new_file.read() == "Original data" # Data should be preserved
|
|
|
|
# Assure cache file store is a singleton
|
|
cache_file_store2 = CacheFileStore()
|
|
new_file = cache_file_store2.get("test_file")
|
|
assert new_file is cache_file # Should be the same object
|
|
|
|
def test_cache_file_store_is_singleton(self, cache_file_store):
|
|
"""Test re-creating a cache store provides the same store."""
|
|
# Create a cache file
|
|
cache_file = cache_file_store.create("test_file", mode="w+")
|
|
cache_file.write("Original data")
|
|
cache_file.seek(0)
|
|
|
|
# Assure cache file store is a singleton
|
|
cache_file_store2 = CacheFileStore()
|
|
new_file = cache_file_store2.get("test_file")
|
|
assert new_file is cache_file # Should be the same object
|
|
|
|
def test_cache_file_store_save_store(self, cache_file_store):
|
|
# Creating a sample cache record
|
|
cache_file = MagicMock()
|
|
cache_file.name = "cache_file_path"
|
|
cache_file.mode = "wb+"
|
|
cache_record = CacheFileRecord(
|
|
cache_file=cache_file, until_datetime=to_datetime(), ttl_duration=None
|
|
)
|
|
cache_file_store._store = {"test_key": cache_record}
|
|
|
|
# Save the store to the file
|
|
cache_file_store.save_store()
|
|
|
|
# Verify the file content
|
|
with cache_file_store._store_file.open("r", encoding="utf-8", newline=None) as f:
|
|
store_loaded = json.load(f)
|
|
assert "test_key" in store_loaded
|
|
assert store_loaded["test_key"]["cache_file"] == "cache_file_path"
|
|
assert store_loaded["test_key"]["mode"] == "wb+"
|
|
assert store_loaded["test_key"]["until_datetime"] == to_datetime(
|
|
cache_record.until_datetime, as_string=True
|
|
)
|
|
assert store_loaded["test_key"]["ttl_duration"] is None
|
|
|
|
def test_cache_file_store_load_store(self, cache_file_store):
|
|
# Creating a sample cache record and save it to the file
|
|
cache_record = {
|
|
"test_key": {
|
|
"cache_file": "cache_file_path",
|
|
"mode": "wb+",
|
|
"until_datetime": to_datetime(as_string=True),
|
|
"ttl_duration": None,
|
|
}
|
|
}
|
|
with cache_file_store._store_file.open("w", encoding="utf-8", newline="\n") as f:
|
|
json.dump(cache_record, f, indent=4)
|
|
|
|
# Mock the open function to return a MagicMock for the cache file
|
|
with patch("builtins.open", new_callable=MagicMock) as mock_open:
|
|
mock_open.return_value.name = "cache_file_path"
|
|
mock_open.return_value.mode = "wb+"
|
|
|
|
# Load the store from the file
|
|
cache_file_store.load_store()
|
|
|
|
# Verify the loaded store
|
|
assert "test_key" in cache_file_store._store
|
|
loaded_record = cache_file_store._store["test_key"]
|
|
assert loaded_record.cache_file.name == "cache_file_path"
|
|
assert loaded_record.cache_file.mode == "wb+"
|
|
assert loaded_record.until_datetime == to_datetime(
|
|
cache_record["test_key"]["until_datetime"]
|
|
)
|
|
assert loaded_record.ttl_duration is None
|
|
|
|
|
|
class TestCacheFileDecorators:
|
|
def test_cache_in_file_decorator_caches_function_result(self, cache_file_store):
|
|
"""Test that the cache_in_file decorator caches a function result."""
|
|
# Clear store to assure it is empty
|
|
cache_file_store.clear(clear_all=True)
|
|
assert len(cache_file_store._store) == 0
|
|
|
|
# Define a simple function to decorate
|
|
@cache_in_file(mode="w+")
|
|
def my_function(until_date=None):
|
|
return "Some expensive computation result"
|
|
|
|
# Call the decorated function (should store result in cache)
|
|
result = my_function(until_date=datetime.now() + timedelta(days=1))
|
|
assert result == "Some expensive computation result"
|
|
|
|
# Assert that the create method was called to store the result
|
|
assert len(cache_file_store._store) == 1
|
|
|
|
# Check if the result was written to the cache file
|
|
key = next(iter(cache_file_store._store))
|
|
cache_file = cache_file_store._store[key].cache_file
|
|
assert cache_file is not None
|
|
|
|
# Assert correct content was written to the file
|
|
cache_file.seek(0) # Move to the start of the file
|
|
assert cache_file.read() == "Some expensive computation result"
|
|
|
|
def test_cache_in_file_decorator_uses_cache(self, cache_file_store):
|
|
"""Test that the cache_in_file decorator reuses cached file on subsequent calls."""
|
|
# Clear store to assure it is empty
|
|
cache_file_store.clear(clear_all=True)
|
|
assert len(cache_file_store._store) == 0
|
|
|
|
# Define a simple function to decorate
|
|
@cache_in_file(mode="w+")
|
|
def my_function(until_date=None):
|
|
return "New result"
|
|
|
|
# Call the decorated function (should store result in cache)
|
|
result = my_function(until_date=to_datetime().add(days=1))
|
|
assert result == "New result"
|
|
|
|
# Assert result was written to cache file
|
|
key = next(iter(cache_file_store._store))
|
|
cache_file = cache_file_store._store[key].cache_file
|
|
assert cache_file is not None
|
|
cache_file.seek(0) # Move to the start of the file
|
|
assert cache_file.read() == result
|
|
|
|
# Modify cache file
|
|
result2 = "Cached result"
|
|
cache_file.seek(0)
|
|
cache_file.write(result2)
|
|
|
|
# Call the decorated function again (should get result from cache)
|
|
result = my_function(until_date=to_datetime().add(days=1))
|
|
assert result == result2
|
|
|
|
def test_cache_in_file_decorator_forces_update_data(self, cache_file_store):
|
|
"""Test that the cache_in_file decorator reuses cached file on subsequent calls."""
|
|
# Clear store to assure it is empty
|
|
cache_file_store.clear(clear_all=True)
|
|
assert len(cache_file_store._store) == 0
|
|
|
|
# Define a simple function to decorate
|
|
@cache_in_file(mode="w+")
|
|
def my_function(until_date=None):
|
|
return "New result"
|
|
|
|
until_date = to_datetime().add(days=1).date()
|
|
|
|
# Call the decorated function (should store result in cache)
|
|
result1 = "New result"
|
|
result = my_function(until_date=until_date)
|
|
assert result == result1
|
|
|
|
# Assert result was written to cache file
|
|
key = next(iter(cache_file_store._store))
|
|
cache_file = cache_file_store._store[key].cache_file
|
|
assert cache_file is not None
|
|
cache_file.seek(0) # Move to the start of the file
|
|
assert cache_file.read() == result
|
|
|
|
# Modify cache file
|
|
result2 = "Cached result"
|
|
cache_file.seek(0)
|
|
cache_file.write(result2)
|
|
cache_file.seek(0) # Move to the start of the file
|
|
assert cache_file.read() == result2
|
|
|
|
# Call the decorated function again with force update (should get result from function)
|
|
result = my_function(until_date=until_date, force_update=True) # type: ignore[call-arg]
|
|
assert result == result1
|
|
|
|
# Assure result was written to the same cache file
|
|
cache_file.seek(0) # Move to the start of the file
|
|
assert cache_file.read() == result1
|
|
|
|
def test_cache_in_file_handles_ttl(self, cache_file_store):
|
|
"""Test that the cache_infile decorator handles the with_ttl parameter."""
|
|
|
|
# Define a simple function to decorate
|
|
@cache_in_file(mode="w+")
|
|
def my_function():
|
|
return "New result"
|
|
|
|
# Call the decorated function
|
|
result1 = my_function(with_ttl="1 second") # type: ignore[call-arg]
|
|
assert result1 == "New result"
|
|
assert len(cache_file_store._store) == 1
|
|
key = list(cache_file_store._store.keys())[0]
|
|
|
|
# Assert result was written to cache file
|
|
key = next(iter(cache_file_store._store))
|
|
cache_file = cache_file_store._store[key].cache_file
|
|
assert cache_file is not None
|
|
cache_file.seek(0) # Move to the start of the file
|
|
assert cache_file.read() == result1
|
|
|
|
# Modify cache file
|
|
result2 = "Cached result"
|
|
cache_file.seek(0)
|
|
cache_file.write(result2)
|
|
cache_file.seek(0) # Move to the start of the file
|
|
assert cache_file.read() == result2
|
|
|
|
# Call the decorated function again
|
|
result = my_function(with_ttl="1 second") # type: ignore[call-arg]
|
|
cache_file.seek(0) # Move to the start of the file
|
|
assert cache_file.read() == result2
|
|
assert result == result2
|
|
|
|
# Wait one second to let the cache time out
|
|
sleep(2)
|
|
|
|
# Call again - cache should be timed out
|
|
result = my_function(with_ttl="1 second") # type: ignore[call-arg]
|
|
assert result == result1
|
|
|
|
def test_cache_in_file_handles_bytes_return(self, cache_file_store):
|
|
"""Test that the cache_infile decorator handles bytes returned from the function."""
|
|
# Clear store to assure it is empty
|
|
cache_file_store.clear(clear_all=True)
|
|
assert len(cache_file_store._store) == 0
|
|
|
|
# Define a function that returns bytes
|
|
@cache_in_file()
|
|
def my_function(until_date=None) -> bytes:
|
|
return b"Some binary data"
|
|
|
|
# Call the decorated function
|
|
result = my_function(until_date=datetime.now() + timedelta(days=1))
|
|
|
|
# Check if the binary data was written to the cache file
|
|
key = next(iter(cache_file_store._store))
|
|
cache_file = cache_file_store._store[key].cache_file
|
|
assert len(cache_file_store._store) == 1
|
|
assert cache_file is not None
|
|
cache_file.seek(0)
|
|
result1 = pickle.load(cache_file)
|
|
assert result1 == result
|
|
|
|
# Access cache
|
|
result = my_function(until_date=datetime.now() + timedelta(days=1))
|
|
assert len(cache_file_store._store) == 1
|
|
assert cache_file_store._store[key].cache_file is not None
|
|
assert result1 == result
|