/usr/lib/python2.7/dist-packages/werkzeug/testsuite/contrib/cache.py is in python-werkzeug 0.9.4+dfsg-1.1ubuntu2.1.
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"""
werkzeug.testsuite.cache
~~~~~~~~~~~~~~~~~~~~~~~~
Tests the cache system
:copyright: (c) 2013 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
try:
from redis.exceptions import ConnectionError as RedisConnectionError
cache.RedisCache(key_prefix='werkzeug-test-case:')._client.set('test','connection')
except RedisConnectionError:
redis = None
except ImportError:
redis = None
try:
import pylibmc as memcache
except ImportError:
try:
from google.appengine.api import memcache
except ImportError:
try:
import memcache
except ImportError:
memcache = 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 range(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_compat(self):
c = self.make_cache()
c._client.set(c.key_prefix + 'foo', b'Awesome')
self.assert_equal(c.get('foo'), b'Awesome')
c._client.set(c.key_prefix + 'foo', b'42')
self.assert_equal(c.get('foo'), 42)
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)
self.assert_equal(c.inc('foo'), 2)
self.assert_equal(c.dec('foo'), 1)
c.delete('foo')
def test_true_false(self):
c = self.make_cache()
c.set('foo', True)
assert c.get('foo') == True
c.set('bar', False)
assert c.get('bar') == False
class MemcachedCacheTestCase(WerkzeugTestCase):
def make_cache(self):
return cache.MemcachedCache(key_prefix='werkzeug-test-case:')
def teardown(self):
self.make_cache().clear()
def test_compat(self):
c = self.make_cache()
c._client.set(c.key_prefix + b'foo', 'bar')
self.assert_equal(c.get('foo'), 'bar')
def test_get_set(self):
c = self.make_cache()
c.set('foo', 'bar')
self.assert_equal(c.get('foo'), 'bar')
def test_get_many(self):
c = self.make_cache()
c.set('foo', 'bar')
c.set('spam', 'eggs')
self.assert_equal(c.get_many('foo', 'spam'), ['bar', 'eggs'])
def test_set_many(self):
c = self.make_cache()
c.set_many({'foo': 'bar', 'spam': 'eggs'})
self.assert_equal(c.get('foo'), 'bar')
self.assert_equal(c.get('spam'), 'eggs')
def test_expire(self):
c = self.make_cache()
c.set('foo', 'bar', 1)
time.sleep(2)
self.assert_is_none(c.get('foo'))
def test_add(self):
c = self.make_cache()
c.add('foo', 'bar')
self.assert_equal(c.get('foo'), 'bar')
c.add('foo', 'baz')
self.assert_equal(c.get('foo'), 'bar')
def test_delete(self):
c = self.make_cache()
c.add('foo', 'bar')
self.assert_equal(c.get('foo'), 'bar')
c.delete('foo')
self.assert_is_none(c.get('foo'))
def test_delete_many(self):
c = self.make_cache()
c.add('foo', 'bar')
c.add('spam', 'eggs')
c.delete_many('foo', 'spam')
self.assert_is_none(c.get('foo'))
self.assert_is_none(c.get('spam'))
def test_inc_dec(self):
c = self.make_cache()
c.set('foo', 1)
# XXX: Is this an intended difference?
c.inc('foo')
self.assert_equal(c.get('foo'), 2)
c.dec('foo')
self.assert_equal(c.get('foo'), 1)
def test_true_false(self):
c = self.make_cache()
c.set('foo', True)
self.assert_equal(c.get('foo'), True)
c.set('bar', False)
self.assert_equal(c.get('bar'), False)
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))
if memcache is not None:
suite.addTest(unittest.makeSuite(MemcachedCacheTestCase))
return suite
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