Display info dialogs if unable to start voice broadcasts (#9453)

test/voice-broadcast/utils/test-utils.ts

@@ -0,0 +1,37 @@
+/*
+Copyright 2022 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 { MatrixEvent } from "matrix-js-sdk/src/matrix";
+
+import { VoiceBroadcastInfoEventType, VoiceBroadcastInfoState } from "../../../src/voice-broadcast";
+import { mkEvent } from "../../test-utils";
+
+export const mkVoiceBroadcastInfoStateEvent = (
+    roomId: string,
+    state: VoiceBroadcastInfoState,
+    sender: string,
+): MatrixEvent => {
+    return mkEvent({
+        event: true,
+        room: roomId,
+        user: sender,
+        type: VoiceBroadcastInfoEventType,
+        skey: sender,
+        content: {
+            state,
+        },
+    });
+};