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70 lines
2.3 KiB
Python
70 lines
2.3 KiB
Python
from synapse.rest.client.transactions import HttpTransactionCache
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from synapse.rest.client.transactions import CLEANUP_PERIOD_MS
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from twisted.internet import defer
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from mock import Mock, call
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from tests import unittest
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from tests.utils import MockClock
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class HttpTransactionCacheTestCase(unittest.TestCase):
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def setUp(self):
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self.clock = MockClock()
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self.cache = HttpTransactionCache(self.clock)
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self.mock_http_response = (200, "GOOD JOB!")
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self.mock_key = "foo"
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@defer.inlineCallbacks
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def test_executes_given_function(self):
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cb = Mock(
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return_value=defer.succeed(self.mock_http_response)
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)
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res = yield self.cache.fetch_or_execute(
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self.mock_key, cb, "some_arg", keyword="arg"
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)
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cb.assert_called_once_with("some_arg", keyword="arg")
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self.assertEqual(res, self.mock_http_response)
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@defer.inlineCallbacks
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def test_deduplicates_based_on_key(self):
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cb = Mock(
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return_value=defer.succeed(self.mock_http_response)
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)
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for i in range(3): # invoke multiple times
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res = yield self.cache.fetch_or_execute(
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self.mock_key, cb, "some_arg", keyword="arg", changing_args=i
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)
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self.assertEqual(res, self.mock_http_response)
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# expect only a single call to do the work
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cb.assert_called_once_with("some_arg", keyword="arg", changing_args=0)
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@defer.inlineCallbacks
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def test_cleans_up(self):
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cb = Mock(
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return_value=defer.succeed(self.mock_http_response)
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)
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yield self.cache.fetch_or_execute(
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self.mock_key, cb, "an arg"
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)
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# should NOT have cleaned up yet
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self.clock.advance_time_msec(CLEANUP_PERIOD_MS / 2)
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yield self.cache.fetch_or_execute(
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self.mock_key, cb, "an arg"
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)
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# still using cache
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cb.assert_called_once_with("an arg")
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self.clock.advance_time_msec(CLEANUP_PERIOD_MS)
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yield self.cache.fetch_or_execute(
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self.mock_key, cb, "an arg"
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)
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# no longer using cache
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self.assertEqual(cb.call_count, 2)
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self.assertEqual(
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cb.call_args_list,
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[call("an arg",), call("an arg",)]
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)
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