112 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			112 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			Python
		
	
	
# -*- coding: utf-8 -*-
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# Copyright 2018 New Vector 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 twisted.internet import defer
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from synapse.rest.client.v1 import room
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from tests.unittest import HomeserverTestCase
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class PurgeTests(HomeserverTestCase):
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    user_id = "@red:server"
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    servlets = [room.register_servlets]
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    def make_homeserver(self, reactor, clock):
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        hs = self.setup_test_homeserver("server", http_client=None)
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        return hs
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    def prepare(self, reactor, clock, hs):
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        self.room_id = self.helper.create_room_as(self.user_id)
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    def test_purge(self):
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        """
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        Purging a room will delete everything before the topological point.
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        """
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        # Send four messages to the room
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        first = self.helper.send(self.room_id, body="test1")
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        second = self.helper.send(self.room_id, body="test2")
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        third = self.helper.send(self.room_id, body="test3")
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        last = self.helper.send(self.room_id, body="test4")
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        store = self.hs.get_datastore()
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        storage = self.hs.get_storage()
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        # Get the topological token
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        event = store.get_topological_token_for_event(last["event_id"])
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        self.pump()
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        event = self.successResultOf(event)
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        # Purge everything before this topological token
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        purge = defer.ensureDeferred(
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            storage.purge_events.purge_history(self.room_id, event, True)
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        )
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        self.pump()
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        self.assertEqual(self.successResultOf(purge), None)
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        # Try and get the events
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        get_first = store.get_event(first["event_id"])
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        get_second = store.get_event(second["event_id"])
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        get_third = store.get_event(third["event_id"])
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        get_last = store.get_event(last["event_id"])
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        self.pump()
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        # 1-3 should fail and last will succeed, meaning that 1-3 are deleted
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        # and last is not.
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        self.failureResultOf(get_first)
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        self.failureResultOf(get_second)
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        self.failureResultOf(get_third)
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        self.successResultOf(get_last)
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    def test_purge_wont_delete_extrems(self):
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        """
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        Purging a room will delete everything before the topological point.
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        """
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        # Send four messages to the room
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        first = self.helper.send(self.room_id, body="test1")
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        second = self.helper.send(self.room_id, body="test2")
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        third = self.helper.send(self.room_id, body="test3")
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        last = self.helper.send(self.room_id, body="test4")
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        storage = self.hs.get_datastore()
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        # Set the topological token higher than it should be
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        event = storage.get_topological_token_for_event(last["event_id"])
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        self.pump()
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        event = self.successResultOf(event)
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        event = "t{}-{}".format(
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            *list(map(lambda x: x + 1, map(int, event[1:].split("-"))))
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        )
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        # Purge everything before this topological token
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        purge = defer.ensureDeferred(storage.purge_history(self.room_id, event, True))
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        self.pump()
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        f = self.failureResultOf(purge)
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        self.assertIn("greater than forward", f.value.args[0])
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        # Try and get the events
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        get_first = storage.get_event(first["event_id"])
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        get_second = storage.get_event(second["event_id"])
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        get_third = storage.get_event(third["event_id"])
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        get_last = storage.get_event(last["event_id"])
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        self.pump()
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        # Nothing is deleted.
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        self.successResultOf(get_first)
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        self.successResultOf(get_second)
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        self.successResultOf(get_third)
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        self.successResultOf(get_last)
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