LLS: Remove beacon info illegal replace relation (#8390)

* dont apply illegal replace relation to beacon_info event

Signed-off-by: Kerry Archibald <kerrya@element.io>

* only display tiles for beacon infos with live prop

Signed-off-by: Kerry Archibald <kerrya@element.io>

* copyrights

Signed-off-by: Kerry Archibald <kerrya@element.io>

test/utils/beacon/timeline-test.ts

@@ -0,0 +1,40 @@
+/*
+Copyright 2020 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { EventType, MatrixEvent } from "matrix-js-sdk/src/matrix";
+
+import { shouldDisplayAsBeaconTile } from "../../../src/utils/beacon/timeline";
+import { makeBeaconInfoEvent } from "../../test-utils";
+
+describe('shouldDisplayAsBeaconTile', () => {
+    const userId = '@user:server';
+    const roomId = '!room:server';
+    const liveBeacon = makeBeaconInfoEvent(userId, roomId, { isLive: true });
+    const notLiveBeacon = makeBeaconInfoEvent(userId, roomId, { isLive: false });
+    const memberEvent = new MatrixEvent({ type: EventType.RoomMember });
+
+    it('returns true for a beacon with live property set to true', () => {
+        expect(shouldDisplayAsBeaconTile(liveBeacon)).toBe(true);
+    });
+
+    it('returns false for a beacon with live property set to false', () => {
+        expect(shouldDisplayAsBeaconTile(notLiveBeacon)).toBe(false);
+    });
+
+    it('returns false for a non beacon event', () => {
+        expect(shouldDisplayAsBeaconTile(memberEvent)).toBe(false);
+    });
+});