1
0
mirror of https://github.com/mikf/gallery-dl.git synced 2024-11-23 03:02:50 +01:00
gallery-dl/test/test_cache.py
Mike Fährmann 8b60bd6a91
mock 'time()' in cache tests
instead of calling 'sleep()' to let time advance.

This shortens the time needed to run those tests,
and ensures consistent results.
(Tests would randomly fail when using 'sleep()')
2020-05-09 23:55:14 +02:00

226 lines
6.2 KiB
Python

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Copyright 2020 Mike Fährmann
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
import os
import sys
import unittest
from unittest.mock import patch
import tempfile
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
from gallery_dl import config, util # noqa E402
dbpath = tempfile.mkstemp()[1]
config.set(("cache",), "file", dbpath)
from gallery_dl import cache # noqa E402
def tearDownModule():
util.remove_file(dbpath)
class TestCache(unittest.TestCase):
def test_decorator(self):
@cache.memcache()
def mc1():
pass
@cache.memcache(maxage=10)
def mc2():
pass
@cache.cache()
def dbc():
pass
self.assertIsInstance(mc1, cache.CacheDecorator)
self.assertIsInstance(mc2, cache.MemoryCacheDecorator)
self.assertIsInstance(dbc, cache.DatabaseCacheDecorator)
def test_keyarg_mem_simple(self):
@cache.memcache(keyarg=2)
def ka(a, b, c):
return a+b+c
self.assertEqual(ka(1, 1, 1), 3)
self.assertEqual(ka(2, 2, 2), 6)
self.assertEqual(ka(0, 0, 1), 3)
self.assertEqual(ka(9, 9, 1), 3)
self.assertEqual(ka(0, 0, 2), 6)
self.assertEqual(ka(9, 9, 2), 6)
def test_keyarg_mem(self):
@cache.memcache(keyarg=2, maxage=10)
def ka(a, b, c):
return a+b+c
self.assertEqual(ka(1, 1, 1), 3)
self.assertEqual(ka(2, 2, 2), 6)
self.assertEqual(ka(0, 0, 1), 3)
self.assertEqual(ka(9, 9, 1), 3)
self.assertEqual(ka(0, 0, 2), 6)
self.assertEqual(ka(9, 9, 2), 6)
def test_keyarg_db(self):
@cache.cache(keyarg=2, maxage=10)
def ka(a, b, c):
return a+b+c
self.assertEqual(ka(1, 1, 1), 3)
self.assertEqual(ka(2, 2, 2), 6)
self.assertEqual(ka(0, 0, 1), 3)
self.assertEqual(ka(9, 9, 1), 3)
self.assertEqual(ka(0, 0, 2), 6)
self.assertEqual(ka(9, 9, 2), 6)
def test_expires_mem(self):
@cache.memcache(maxage=2)
def ex(a, b, c):
return a+b+c
with patch("time.time") as tmock:
tmock.return_value = 0.001
self.assertEqual(ex(1, 1, 1), 3)
self.assertEqual(ex(2, 2, 2), 3)
self.assertEqual(ex(3, 3, 3), 3)
# value is still cached after 1 second
tmock.return_value += 1.0
self.assertEqual(ex(3, 3, 3), 3)
self.assertEqual(ex(2, 2, 2), 3)
self.assertEqual(ex(1, 1, 1), 3)
# new value after 'maxage' seconds
tmock.return_value += 1.0
self.assertEqual(ex(3, 3, 3), 9)
self.assertEqual(ex(2, 2, 2), 9)
self.assertEqual(ex(1, 1, 1), 9)
def test_expires_db(self):
@cache.cache(maxage=2)
def ex(a, b, c):
return a+b+c
with patch("time.time") as tmock:
tmock.return_value = 0.999
self.assertEqual(ex(1, 1, 1), 3)
self.assertEqual(ex(2, 2, 2), 3)
self.assertEqual(ex(3, 3, 3), 3)
# value is still cached after 1 second
tmock.return_value += 1.0
self.assertEqual(ex(3, 3, 3), 3)
self.assertEqual(ex(2, 2, 2), 3)
self.assertEqual(ex(1, 1, 1), 3)
# new value after 'maxage' seconds
tmock.return_value += 1.0
self.assertEqual(ex(3, 3, 3), 9)
self.assertEqual(ex(2, 2, 2), 9)
self.assertEqual(ex(1, 1, 1), 9)
def test_update_mem_simple(self):
@cache.memcache(keyarg=0)
def up(a, b, c):
return a+b+c
self.assertEqual(up(1, 1, 1), 3)
up.update(1, 0)
up.update(2, 9)
self.assertEqual(up(1, 0, 0), 0)
self.assertEqual(up(2, 0, 0), 9)
def test_update_mem(self):
@cache.memcache(keyarg=0, maxage=10)
def up(a, b, c):
return a+b+c
self.assertEqual(up(1, 1, 1), 3)
up.update(1, 0)
up.update(2, 9)
self.assertEqual(up(1, 0, 0), 0)
self.assertEqual(up(2, 0, 0), 9)
def test_update_db(self):
@cache.cache(keyarg=0, maxage=10)
def up(a, b, c):
return a+b+c
self.assertEqual(up(1, 1, 1), 3)
up.update(1, 0)
up.update(2, 9)
self.assertEqual(up(1, 0, 0), 0)
self.assertEqual(up(2, 0, 0), 9)
def test_invalidate_mem_simple(self):
@cache.memcache(keyarg=0)
def inv(a, b, c):
return a+b+c
self.assertEqual(inv(1, 1, 1), 3)
inv.invalidate(1)
inv.invalidate(2)
self.assertEqual(inv(1, 0, 0), 1)
self.assertEqual(inv(2, 0, 0), 2)
def test_invalidate_mem(self):
@cache.memcache(keyarg=0, maxage=10)
def inv(a, b, c):
return a+b+c
self.assertEqual(inv(1, 1, 1), 3)
inv.invalidate(1)
inv.invalidate(2)
self.assertEqual(inv(1, 0, 0), 1)
self.assertEqual(inv(2, 0, 0), 2)
def test_invalidate_db(self):
@cache.cache(keyarg=0, maxage=10)
def inv(a, b, c):
return a+b+c
self.assertEqual(inv(1, 1, 1), 3)
inv.invalidate(1)
inv.invalidate(2)
self.assertEqual(inv(1, 0, 0), 1)
self.assertEqual(inv(2, 0, 0), 2)
def test_database_read(self):
@cache.cache(keyarg=0, maxage=10)
def db(a, b, c):
return a+b+c
# initialize cache
self.assertEqual(db(1, 1, 1), 3)
db.update(2, 6)
# check and clear the in-memory portion of said cache
self.assertEqual(db.cache[1][0], 3)
self.assertEqual(db.cache[2][0], 6)
db.cache.clear()
self.assertEqual(db.cache, {})
# fetch results from database
self.assertEqual(db(1, 0, 0), 3)
self.assertEqual(db(2, 0, 0), 6)
# check in-memory cache updates
self.assertEqual(db.cache[1][0], 3)
self.assertEqual(db.cache[2][0], 6)
if __name__ == '__main__':
unittest.main()