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# -*- coding: utf-8 -*-
"""
werkzeug.testsuite.cache
~~~~~~~~~~~~~~~~~~~~~~~~
Tests the cache system
:copyright: (c) 2011 by Armin Ronacher.
:license: BSD, see LICENSE for more details.
"""
import os
import time
import unittest
import tempfile
import shutil
from werkzeug.testsuite import WerkzeugTestCase
from werkzeug.contrib import cache
try:
import redis
except ImportError:
redis = None
class SimpleCacheTestCase(WerkzeugTestCase):
def test_get_dict(self):
c = cache.SimpleCache()
c.set('a', 'a')
c.set('b', 'b')
d = c.get_dict('a', 'b')
assert 'a' in d
assert 'a' == d['a']
assert 'b' in d
assert 'b' == d['b']
def test_set_many(self):
c = cache.SimpleCache()
c.set_many({0: 0, 1: 1, 2: 4})
assert c.get(2) == 4
c.set_many((i, i*i) for i in xrange(3))
assert c.get(2) == 4
class FileSystemCacheTestCase(WerkzeugTestCase):
def test_set_get(self):
tmp_dir = tempfile.mkdtemp()
try:
c = cache.FileSystemCache(cache_dir=tmp_dir)
for i in range(3):
c.set(str(i), i * i)
for i in range(3):
result = c.get(str(i))
assert result == i * i
finally:
shutil.rmtree(tmp_dir)
def test_filesystemcache_prune(self):
THRESHOLD = 13
tmp_dir = tempfile.mkdtemp()
c = cache.FileSystemCache(cache_dir=tmp_dir, threshold=THRESHOLD)
for i in range(2 * THRESHOLD):
c.set(str(i), i)
cache_files = os.listdir(tmp_dir)
shutil.rmtree(tmp_dir)
assert len(cache_files) <= THRESHOLD
def test_filesystemcache_clear(self):
tmp_dir = tempfile.mkdtemp()
c = cache.FileSystemCache(cache_dir=tmp_dir)
c.set('foo', 'bar')
cache_files = os.listdir(tmp_dir)
assert len(cache_files) == 1
c.clear()
cache_files = os.listdir(tmp_dir)
assert len(cache_files) == 0
shutil.rmtree(tmp_dir)
class RedisCacheTestCase(WerkzeugTestCase):
def make_cache(self):
return cache.RedisCache(key_prefix='werkzeug-test-case:')
def teardown(self):
self.make_cache().clear()
def test_get_set(self):
c = self.make_cache()
c.set('foo', 'bar')
assert c.get('foo') == 'bar'
def test_get_many(self):
c = self.make_cache()
c.set('foo', 'bar')
c.set('spam', 'eggs')
assert c.get_many('foo', 'spam') == ['bar', 'eggs']
def test_set_many(self):
c = self.make_cache()
c.set_many({'foo': 'bar', 'spam': 'eggs'})
assert c.get('foo') == 'bar'
assert c.get('spam') == 'eggs'
def test_expire(self):
c = self.make_cache()
c.set('foo', 'bar', 1)
time.sleep(2)
assert c.get('foo') is None
def test_add(self):
c = self.make_cache()
# sanity check that add() works like set()
c.add('foo', 'bar')
assert c.get('foo') == 'bar'
c.add('foo', 'qux')
assert c.get('foo') == 'bar'
def test_delete(self):
c = self.make_cache()
c.add('foo', 'bar')
assert c.get('foo') == 'bar'
c.delete('foo')
assert c.get('foo') is None
def test_delete_many(self):
c = self.make_cache()
c.add('foo', 'bar')
c.add('spam', 'eggs')
c.delete_many('foo', 'spam')
assert c.get('foo') is None
assert c.get('spam') is None
def test_inc_dec(self):
c = self.make_cache()
c.set('foo', 1)
assert c.inc('foo') == 2
assert c.dec('foo') == 1
c.delete('foo')
def suite():
suite = unittest.TestSuite()
suite.addTest(unittest.makeSuite(SimpleCacheTestCase))
suite.addTest(unittest.makeSuite(FileSystemCacheTestCase))
if redis is not None:
suite.addTest(unittest.makeSuite(RedisCacheTestCase))
return suite
|
