289 lines
8.7 KiB
Python
289 lines
8.7 KiB
Python
# This file is part of Tryton. The COPYRIGHT file at the top level of
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# this repository contains the full copyright notices and license terms.
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import datetime as dt
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import time
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import unittest
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from trytond import backend
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from trytond import cache as cache_mod
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from trytond.cache import (
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LRUDict, LRUDictTransaction, MemoryCache, freeze, unfreeze)
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from trytond.tests.test_tryton import (
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DB_NAME, USER, activate_module, with_transaction)
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from trytond.transaction import Transaction
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cache = MemoryCache('test.cache')
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cache_expire = MemoryCache('test.cache_expire', duration=1)
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class CacheTestCase(unittest.TestCase):
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"Test Cache"
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def testFreeze(self):
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"Test freeze"
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self.assertEqual(freeze([1, 2, 3]), (1, 2, 3))
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self.assertEqual(freeze({
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'list': [1, 2, 3],
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}),
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frozenset([('list', (1, 2, 3))]))
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self.assertEqual(freeze({
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'dict': {
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'inner dict': {
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'list': [1, 2, 3],
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'string': 'test',
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},
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}
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}),
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frozenset([('dict',
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frozenset([('inner dict',
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frozenset([
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('list', (1, 2, 3)),
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('string', 'test'),
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]))]))]))
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def testUnfreeze(self):
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"Test unfreeze"
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for value, result in [
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(freeze([1, 2, 3]), [1, 2, 3]),
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(freeze({'dict': {
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'inner dict': {
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'list': [1, 2, 3],
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'string': 'test',
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},
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},
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}),
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{'dict': {
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'inner dict': {
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'list': [1, 2, 3],
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'string': 'test',
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},
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},
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}),
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]:
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with self.subTest(value=value):
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self.assertEqual(unfreeze(value), result)
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class MemoryCacheTestCase(unittest.TestCase):
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"Test Cache"
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@classmethod
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def setUpClass(cls):
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activate_module('tests')
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def setUp(self):
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super().setUp()
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clear_timeout = cache_mod._clear_timeout
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cache_mod._clear_timeout = 1
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self.addCleanup(
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setattr, cache_mod, '_clear_timeout', clear_timeout)
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def tearDown(self):
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MemoryCache.drop(DB_NAME)
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def wait_cache_sync(self, after=None):
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pass
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@with_transaction()
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def test_memory_cache_set_get(self):
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"Test MemoryCache set/get"
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cache.set('foo', 'bar')
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self.assertEqual(cache.get('foo'), 'bar')
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@with_transaction()
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def test_memory_cache_drop(self):
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"Test MemoryCache drop"
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cache.set('foo', 'bar')
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MemoryCache.drop(DB_NAME)
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self.assertEqual(cache.get('foo'), None)
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def test_memory_cache_transactions(self):
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"Test MemoryCache with concurrent transactions"
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transaction1 = Transaction().start(DB_NAME, USER)
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self.addCleanup(transaction1.stop)
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cache.set('foo', 'bar')
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self.assertEqual(cache.get('foo'), 'bar')
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transaction2 = transaction1.new_transaction()
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self.addCleanup(transaction2.stop)
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cache.clear()
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self.assertEqual(cache.get('foo'), None)
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cache.set('foo', 'baz')
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self.assertEqual(cache.get('foo'), 'baz')
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with Transaction().set_current_transaction(transaction1):
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self.assertEqual(cache.get('foo'), 'bar')
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commit_time = dt.datetime.now()
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transaction2.commit()
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self.wait_cache_sync(after=commit_time)
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self.assertEqual(cache.get('foo'), 'baz')
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def test_memory_cache_nested_transactions(self):
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"Test MemoryCache with nested transactions"
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# Create entry in the cache table to trigger 2 updates
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with Transaction().start(DB_NAME, USER):
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cache.clear()
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# Ensure sync is performed on start
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time.sleep(cache_mod._clear_timeout)
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with Transaction().start(DB_NAME, USER) as transaction1:
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cache.clear()
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with transaction1.new_transaction():
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cache.clear()
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def test_memory_cache_sync(self):
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"Test MemoryCache synchronisation"
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with Transaction().start(DB_NAME, USER):
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cache.clear()
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time.sleep(cache_mod._clear_timeout)
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last = cache._clean_last
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with Transaction().start(DB_NAME, USER):
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self.assertGreater(cache._clean_last, last)
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def test_memory_cache_old_transaction(self):
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"Test old transaction does not fill cache"
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transaction1 = Transaction().start(DB_NAME, USER)
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self.addCleanup(transaction1.stop)
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# Clear cache from new transaction
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transaction2 = transaction1.new_transaction()
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self.addCleanup(transaction2.stop)
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cache.clear()
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commit_time = dt.datetime.now()
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transaction2.commit()
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self.wait_cache_sync(after=commit_time)
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# Set value from old transaction
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Transaction().set_current_transaction(transaction1)
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self.addCleanup(transaction1.stop)
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cache.set('foo', 'baz')
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# New transaction has still empty cache
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transaction3 = transaction1.new_transaction()
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self.addCleanup(transaction3.stop)
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self.assertEqual(cache.get('foo'), None)
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@with_transaction()
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def test_memory_cache_expire(self):
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"Test expired cache"
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cache_expire.set('foo', "bar")
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time.sleep(cache_expire.duration.total_seconds())
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self.assertEqual(cache_expire.get('foo'), None)
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@unittest.skipIf(backend.name == 'sqlite', "SQLite has not channel")
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class MemoryCacheChannelTestCase(MemoryCacheTestCase):
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"Test Cache with channel"
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def setUp(self):
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super().setUp()
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clear_timeout = cache_mod._clear_timeout
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cache_mod._clear_timeout = 0
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self.addCleanup(
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setattr, cache_mod, '_clear_timeout', clear_timeout)
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def wait_cache_sync(self, after=None):
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if after is None:
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after = dt.datetime.now()
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while MemoryCache._clean_last < after:
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time.sleep(.01)
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@unittest.skip("No cache sync on transaction start with channel")
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def test_memory_cache_sync(self):
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super().test_memory_cache_sync()
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class LRUDictTestCase(unittest.TestCase):
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"Test LRUDict"
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def test_setitem(self):
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lru_dict = LRUDict(1)
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lru_dict['foo'] = 'foo'
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self.assertEqual(len(lru_dict), 1)
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lru_dict['bar'] = 'bar'
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self.assertEqual(len(lru_dict), 1)
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self.assertEqual(lru_dict, {'bar': 'bar'})
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def test_update(self):
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lru_dict = LRUDict(1)
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lru_dict['foo'] = 'foo'
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self.assertEqual(len(lru_dict), 1)
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lru_dict.update(bar='bar')
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lru_dict.update(baz='baz')
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self.assertEqual(len(lru_dict), 1)
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self.assertEqual(lru_dict, {'baz': 'baz'})
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def test_setdefault(self):
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lru_dict = LRUDict(1)
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lru_dict['foo'] = 'foo'
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self.assertEqual(len(lru_dict), 1)
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lru_dict.setdefault('bar', 'value')
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self.assertEqual(len(lru_dict), 1)
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self.assertEqual(lru_dict, {'bar': 'value'})
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def test_default_factory(self):
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lru_dict = LRUDict(1, default_factory=list)
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self.assertEqual(lru_dict['foo'], [])
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lru_dict['bar'].append('bar')
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self.assertEqual(lru_dict, {'bar': ['bar']})
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def test_default_factory_with_key(self):
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lru_dict = LRUDict(
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1, default_factory=lambda k: k, default_factory_with_key=True)
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self.assertEqual(lru_dict['foo'], 'foo')
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class LRUDictTransactionTestCase(unittest.TestCase):
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"Test LRUDictTransaction"
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@with_transaction()
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def test_init(self):
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"Test init set to transaction counter"
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lru_dict = LRUDictTransaction(48)
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self.assertEqual(lru_dict.counter, Transaction().counter)
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@with_transaction()
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def test_clear(self):
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"Test clear reset counter"
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lru_dict = LRUDictTransaction(48)
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Transaction().counter += 1
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lru_dict.clear()
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self.assertEqual(lru_dict.counter, Transaction().counter)
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@with_transaction()
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def test_refresh(self):
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"Test refresh"
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lru_dict = LRUDictTransaction(48)
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lru_dict['foo'] = 'foo'
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lru_dict.refresh()
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self.assertEqual(lru_dict, {'foo': 'foo'})
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Transaction().counter += 1
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lru_dict.refresh()
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self.assertEqual(lru_dict, {})
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self.assertEqual(lru_dict.counter, Transaction().counter)
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