Remove unused/bitrotted MemoryDataStore

This isn't used, and looks thoroughly bitrotted.

tests/utils.py

@@ -13,27 +13,23 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from synapse.http.server import HttpServer
-from synapse.api.errors import cs_error, CodeMessageException, StoreError
-from synapse.api.constants import EventTypes
-from synapse.storage.prepare_database import prepare_database
-from synapse.storage.engines import create_engine
-from synapse.server import HomeServer
-from synapse.federation.transport import server
-from synapse.util.ratelimitutils import FederationRateLimiter
-
-from synapse.util.logcontext import LoggingContext
-
-from twisted.internet import defer, reactor
-from twisted.enterprise.adbapi import ConnectionPool
-
-from collections import namedtuple
-from mock import patch, Mock
 import hashlib
+from inspect import getcallargs
 import urllib
 import urlparse
 
-from inspect import getcallargs
+from mock import Mock, patch
+from twisted.enterprise.adbapi import ConnectionPool
+from twisted.internet import defer, reactor
+
+from synapse.api.errors import CodeMessageException, cs_error
+from synapse.federation.transport import server
+from synapse.http.server import HttpServer
+from synapse.server import HomeServer
+from synapse.storage.engines import create_engine
+from synapse.storage.prepare_database import prepare_database
+from synapse.util.logcontext import LoggingContext
+from synapse.util.ratelimitutils import FederationRateLimiter
 
 
 @defer.inlineCallbacks
@@ -334,140 +330,6 @@ class SQLiteMemoryDbPool(ConnectionPool, object):
         return create_engine(self.config.database_config)
 
 
-class MemoryDataStore(object):
-
-    Room = namedtuple(
-        "Room",
-        ["room_id", "is_public", "creator"]
-    )
-
-    def __init__(self):
-        self.tokens_to_users = {}
-        self.paths_to_content = {}
-
-        self.members = {}
-        self.rooms = {}
-
-        self.current_state = {}
-        self.events = []
-
-    class Snapshot(namedtuple("Snapshot", "room_id user_id membership_state")):
-        def fill_out_prev_events(self, event):
-            pass
-
-    def snapshot_room(self, room_id, user_id, state_type=None, state_key=None):
-        return self.Snapshot(
-            room_id, user_id, self.get_room_member(user_id, room_id)
-        )
-
-    def register(self, user_id, token, password_hash):
-        if user_id in self.tokens_to_users.values():
-            raise StoreError(400, "User in use.")
-        self.tokens_to_users[token] = user_id
-
-    def get_user_by_access_token(self, token):
-        try:
-            return {
-                "name": self.tokens_to_users[token],
-            }
-        except Exception:
-            raise StoreError(400, "User does not exist.")
-
-    def get_room(self, room_id):
-        try:
-            return self.rooms[room_id]
-        except Exception:
-            return None
-
-    def store_room(self, room_id, room_creator_user_id, is_public):
-        if room_id in self.rooms:
-            raise StoreError(409, "Conflicting room!")
-
-        room = MemoryDataStore.Room(
-            room_id=room_id,
-            is_public=is_public,
-            creator=room_creator_user_id
-        )
-        self.rooms[room_id] = room
-
-    def get_room_member(self, user_id, room_id):
-        return self.members.get(room_id, {}).get(user_id)
-
-    def get_room_members(self, room_id, membership=None):
-        if membership:
-            return [
-                v for k, v in self.members.get(room_id, {}).items()
-                if v.membership == membership
-            ]
-        else:
-            return self.members.get(room_id, {}).values()
-
-    def get_rooms_for_user_where_membership_is(self, user_id, membership_list):
-        return [
-            m[user_id] for m in self.members.values()
-            if user_id in m and m[user_id].membership in membership_list
-        ]
-
-    def get_room_events_stream(self, user_id=None, from_key=None, to_key=None,
-                               limit=0, with_feedback=False):
-        return ([], from_key)  # TODO
-
-    def get_joined_hosts_for_room(self, room_id):
-        return defer.succeed([])
-
-    def persist_event(self, event):
-        if event.type == EventTypes.Member:
-            room_id = event.room_id
-            user = event.state_key
-            self.members.setdefault(room_id, {})[user] = event
-
-        if hasattr(event, "state_key"):
-            key = (event.room_id, event.type, event.state_key)
-            self.current_state[key] = event
-
-        self.events.append(event)
-
-    def get_current_state(self, room_id, event_type=None, state_key=""):
-        if event_type:
-            key = (room_id, event_type, state_key)
-            if self.current_state.get(key):
-                return [self.current_state.get(key)]
-            return None
-        else:
-            return [
-                e for e in self.current_state
-                if e[0] == room_id
-            ]
-
-    def set_presence_state(self, user_localpart, state):
-        return defer.succeed({"state": 0})
-
-    def get_presence_list(self, user_localpart, accepted):
-        return []
-
-    def get_room_events_max_id(self):
-        return "s0"  # TODO (erikj)
-
-    def get_send_event_level(self, room_id):
-        return defer.succeed(0)
-
-    def get_power_level(self, room_id, user_id):
-        return defer.succeed(0)
-
-    def get_add_state_level(self, room_id):
-        return defer.succeed(0)
-
-    def get_room_join_rule(self, room_id):
-        # TODO (erikj): This should be configurable
-        return defer.succeed("invite")
-
-    def get_ops_levels(self, room_id):
-        return defer.succeed((5, 5, 5))
-
-    def insert_client_ip(self, user, access_token, ip, user_agent):
-        return defer.succeed(None)
-
-
 def _format_call(args, kwargs):
     return ", ".join(
         ["%r" % (a) for a in args] +