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110 lines
2.8 KiB
Python
110 lines
2.8 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2015 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from tests import unittest
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from twisted.internet import defer
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from synapse.storage._base import cached
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class CacheDecoratorTestCase(unittest.TestCase):
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@defer.inlineCallbacks
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def test_passthrough(self):
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@cached()
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def func(self, key):
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return key
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self.assertEquals((yield func(self, "foo")), "foo")
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self.assertEquals((yield func(self, "bar")), "bar")
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@defer.inlineCallbacks
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def test_hit(self):
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callcount = [0]
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@cached()
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def func(self, key):
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callcount[0] += 1
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return key
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yield func(self, "foo")
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self.assertEquals(callcount[0], 1)
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self.assertEquals((yield func(self, "foo")), "foo")
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self.assertEquals(callcount[0], 1)
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@defer.inlineCallbacks
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def test_invalidate(self):
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callcount = [0]
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@cached()
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def func(self, key):
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callcount[0] += 1
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return key
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yield func(self, "foo")
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self.assertEquals(callcount[0], 1)
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func.invalidate("foo")
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yield func(self, "foo")
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self.assertEquals(callcount[0], 2)
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def test_invalidate_missing(self):
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@cached()
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def func(self, key):
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return key
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func.invalidate("what")
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@defer.inlineCallbacks
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def test_max_entries(self):
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callcount = [0]
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@cached(max_entries=10)
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def func(self, key):
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callcount[0] += 1
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return key
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for k in range(0,12):
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yield func(self, k)
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self.assertEquals(callcount[0], 12)
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# There must have been at least 2 evictions, meaning if we calculate
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# all 12 values again, we must get called at least 2 more times
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for k in range(0,12):
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yield func(self, k)
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self.assertTrue(callcount[0] >= 14,
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msg="Expected callcount >= 14, got %d" % (callcount[0]))
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@defer.inlineCallbacks
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def test_prefill(self):
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callcount = [0]
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@cached()
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def func(self, key):
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callcount[0] += 1
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return key
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func.prefill("foo", 123)
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self.assertEquals((yield func(self, "foo")), 123)
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self.assertEquals(callcount[0], 0)
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