mirror of
https://github.com/spl0k/supysonic.git
synced 2024-12-22 08:56:17 +00:00
276 lines
7.8 KiB
Python
276 lines
7.8 KiB
Python
# This file is part of Supysonic.
|
|
# Supysonic is a Python implementation of the Subsonic server API.
|
|
#
|
|
# Copyright (C) 2018 Alban 'spl0k' Féron
|
|
# 2018-2019 Carey 'pR0Ps' Metcalfe
|
|
#
|
|
# Distributed under terms of the GNU AGPLv3 license.
|
|
|
|
import os
|
|
import unittest
|
|
import shutil
|
|
import time
|
|
import tempfile
|
|
|
|
from supysonic.cache import Cache, CacheMiss, ProtectedError
|
|
|
|
|
|
class CacheTestCase(unittest.TestCase):
|
|
def setUp(self):
|
|
self.__dir = tempfile.mkdtemp()
|
|
|
|
def tearDown(self):
|
|
shutil.rmtree(self.__dir)
|
|
|
|
def test_existing_files_order(self):
|
|
cache = Cache(self.__dir, 30)
|
|
val = b"0123456789"
|
|
cache.set("key1", val)
|
|
cache.set("key2", val)
|
|
cache.set("key3", val)
|
|
self.assertEqual(cache.size, 30)
|
|
|
|
# file mtime is accurate to the second
|
|
time.sleep(1)
|
|
cache.get_value("key1")
|
|
|
|
cache = Cache(self.__dir, 30, min_time=0)
|
|
self.assertEqual(cache.size, 30)
|
|
self.assertTrue(cache.has("key1"))
|
|
self.assertTrue(cache.has("key2"))
|
|
self.assertTrue(cache.has("key3"))
|
|
|
|
cache.set("key4", val)
|
|
self.assertEqual(cache.size, 30)
|
|
self.assertTrue(cache.has("key1"))
|
|
self.assertFalse(cache.has("key2"))
|
|
self.assertTrue(cache.has("key3"))
|
|
self.assertTrue(cache.has("key4"))
|
|
|
|
def test_missing(self):
|
|
cache = Cache(self.__dir, 10)
|
|
self.assertFalse(cache.has("missing"))
|
|
with self.assertRaises(CacheMiss):
|
|
cache.get_value("missing")
|
|
|
|
def test_delete_missing(self):
|
|
cache = Cache(self.__dir, 0, min_time=0)
|
|
cache.delete("missing1")
|
|
cache.delete("missing2")
|
|
|
|
def test_store_literal(self):
|
|
cache = Cache(self.__dir, 10)
|
|
val = b"0123456789"
|
|
cache.set("key", val)
|
|
self.assertEqual(cache.size, 10)
|
|
self.assertTrue(cache.has("key"))
|
|
self.assertEqual(cache.get_value("key"), val)
|
|
|
|
def test_store_generated(self):
|
|
cache = Cache(self.__dir, 10)
|
|
val = [b"0", b"12", b"345", b"6789"]
|
|
|
|
def gen():
|
|
yield from val
|
|
|
|
t = []
|
|
for x in cache.set_generated("key", gen):
|
|
t.append(x)
|
|
self.assertEqual(cache.size, 0)
|
|
self.assertFalse(cache.has("key"))
|
|
|
|
self.assertEqual(t, val)
|
|
self.assertEqual(cache.size, 10)
|
|
self.assertEqual(cache.get_value("key"), b"".join(val))
|
|
|
|
def test_store_to_fp(self):
|
|
cache = Cache(self.__dir, 10)
|
|
val = b"0123456789"
|
|
with cache.set_fileobj("key") as fp:
|
|
fp.write(val)
|
|
self.assertEqual(cache.size, 0)
|
|
|
|
self.assertEqual(cache.size, 10)
|
|
self.assertEqual(cache.get_value("key"), val)
|
|
|
|
def test_access_data(self):
|
|
cache = Cache(self.__dir, 25, min_time=0)
|
|
val = b"0123456789"
|
|
cache.set("key", val)
|
|
|
|
self.assertEqual(cache.get_value("key"), val)
|
|
|
|
with cache.get_fileobj("key") as f:
|
|
self.assertEqual(f.read(), val)
|
|
|
|
with open(cache.get("key"), "rb") as f:
|
|
self.assertEqual(f.read(), val)
|
|
|
|
def test_accessing_preserves(self):
|
|
cache = Cache(self.__dir, 25, min_time=0)
|
|
val = b"0123456789"
|
|
cache.set("key1", val)
|
|
cache.set("key2", val)
|
|
self.assertEqual(cache.size, 20)
|
|
|
|
cache.get_value("key1")
|
|
|
|
cache.set("key3", val)
|
|
self.assertEqual(cache.size, 20)
|
|
self.assertTrue(cache.has("key1"))
|
|
self.assertFalse(cache.has("key2"))
|
|
self.assertTrue(cache.has("key3"))
|
|
|
|
def test_automatic_delete_oldest(self):
|
|
cache = Cache(self.__dir, 25, min_time=0)
|
|
val = b"0123456789"
|
|
cache.set("key1", val)
|
|
self.assertTrue(cache.has("key1"))
|
|
self.assertEqual(cache.size, 10)
|
|
|
|
cache.set("key2", val)
|
|
self.assertEqual(cache.size, 20)
|
|
self.assertTrue(cache.has("key1"))
|
|
self.assertTrue(cache.has("key2"))
|
|
|
|
cache.set("key3", val)
|
|
self.assertEqual(cache.size, 20)
|
|
self.assertFalse(cache.has("key1"))
|
|
self.assertTrue(cache.has("key2"))
|
|
self.assertTrue(cache.has("key3"))
|
|
|
|
def test_delete(self):
|
|
cache = Cache(self.__dir, 25, min_time=0)
|
|
val = b"0123456789"
|
|
cache.set("key1", val)
|
|
self.assertTrue(cache.has("key1"))
|
|
self.assertEqual(cache.size, 10)
|
|
|
|
cache.delete("key1")
|
|
|
|
self.assertFalse(cache.has("key1"))
|
|
self.assertEqual(cache.size, 0)
|
|
|
|
def test_cleanup_on_error(self):
|
|
cache = Cache(self.__dir, 10)
|
|
|
|
def gen():
|
|
# Cause a TypeError halfway through
|
|
yield from [b"0", b"12", object(), b"345", b"6789"]
|
|
|
|
with self.assertRaises(TypeError):
|
|
for x in cache.set_generated("key", gen):
|
|
pass
|
|
|
|
# Make sure no partial files are left after the error
|
|
self.assertEqual(list(os.listdir(self.__dir)), list())
|
|
|
|
def test_parallel_generation(self):
|
|
cache = Cache(self.__dir, 20)
|
|
|
|
def gen():
|
|
yield from [b"0", b"12", b"345", b"6789"]
|
|
|
|
g1 = cache.set_generated("key", gen)
|
|
g2 = cache.set_generated("key", gen)
|
|
|
|
next(g1)
|
|
files = os.listdir(self.__dir)
|
|
self.assertEqual(len(files), 1)
|
|
for x in files:
|
|
self.assertTrue(x.endswith(".part"))
|
|
|
|
next(g2)
|
|
files = os.listdir(self.__dir)
|
|
self.assertEqual(len(files), 2)
|
|
for x in files:
|
|
self.assertTrue(x.endswith(".part"))
|
|
|
|
self.assertEqual(cache.size, 0)
|
|
for x in g1:
|
|
pass
|
|
self.assertEqual(cache.size, 10)
|
|
self.assertTrue(cache.has("key"))
|
|
|
|
# Replace the file - size should stay the same
|
|
for x in g2:
|
|
pass
|
|
self.assertEqual(cache.size, 10)
|
|
self.assertTrue(cache.has("key"))
|
|
|
|
# Only a single file
|
|
self.assertEqual(len(os.listdir(self.__dir)), 1)
|
|
|
|
def test_replace(self):
|
|
cache = Cache(self.__dir, 20)
|
|
val_small = b"0"
|
|
val_big = b"0123456789"
|
|
|
|
cache.set("key", val_small)
|
|
self.assertEqual(cache.size, 1)
|
|
|
|
cache.set("key", val_big)
|
|
self.assertEqual(cache.size, 10)
|
|
|
|
cache.set("key", val_small)
|
|
self.assertEqual(cache.size, 1)
|
|
|
|
def test_no_auto_prune(self):
|
|
cache = Cache(self.__dir, 10, min_time=0, auto_prune=False)
|
|
val = b"0123456789"
|
|
|
|
cache.set("key1", val)
|
|
cache.set("key2", val)
|
|
cache.set("key3", val)
|
|
cache.set("key4", val)
|
|
self.assertEqual(cache.size, 40)
|
|
cache.prune()
|
|
|
|
self.assertEqual(cache.size, 10)
|
|
|
|
def test_min_time_clear(self):
|
|
cache = Cache(self.__dir, 40, min_time=1)
|
|
val = b"0123456789"
|
|
|
|
cache.set("key1", val)
|
|
cache.set("key2", val)
|
|
time.sleep(1)
|
|
cache.set("key3", val)
|
|
cache.set("key4", val)
|
|
|
|
self.assertEqual(cache.size, 40)
|
|
cache.clear()
|
|
self.assertEqual(cache.size, 20)
|
|
time.sleep(1)
|
|
cache.clear()
|
|
self.assertEqual(cache.size, 0)
|
|
|
|
def test_not_expired(self):
|
|
cache = Cache(self.__dir, 40, min_time=1)
|
|
val = b"0123456789"
|
|
cache.set("key1", val)
|
|
with self.assertRaises(ProtectedError):
|
|
cache.delete("key1")
|
|
time.sleep(1)
|
|
cache.delete("key1")
|
|
self.assertEqual(cache.size, 0)
|
|
|
|
def test_missing_cache_file(self):
|
|
cache = Cache(self.__dir, 10, min_time=0)
|
|
val = b"0123456789"
|
|
os.remove(cache.set("key", val))
|
|
|
|
self.assertEqual(cache.size, 10)
|
|
self.assertFalse(cache.has("key"))
|
|
self.assertEqual(cache.size, 0)
|
|
|
|
os.remove(cache.set("key", val))
|
|
self.assertEqual(cache.size, 10)
|
|
with self.assertRaises(CacheMiss):
|
|
cache.get("key")
|
|
self.assertEqual(cache.size, 0)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|