Display voice broadcast total length (#9517)

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

@@ -14,9 +14,13 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import { MatrixEvent } from "matrix-js-sdk/src/matrix";
+import { EventType, MatrixEvent, MsgType } from "matrix-js-sdk/src/matrix";
 
-import { VoiceBroadcastInfoEventType, VoiceBroadcastInfoState } from "../../../src/voice-broadcast";
+import {
+    VoiceBroadcastChunkEventType,
+    VoiceBroadcastInfoEventType,
+    VoiceBroadcastInfoState,
+} from "../../../src/voice-broadcast";
 import { mkEvent } from "../../test-utils";
 
 export const mkVoiceBroadcastInfoStateEvent = (
@@ -48,3 +52,31 @@ export const mkVoiceBroadcastInfoStateEvent = (
         },
     });
 };
+
+export const mkVoiceBroadcastChunkEvent = (
+    userId: string,
+    roomId: string,
+    duration: number,
+    sequence?: number,
+    timestamp?: number,
+): MatrixEvent => {
+    return mkEvent({
+        event: true,
+        user: userId,
+        room: roomId,
+        type: EventType.RoomMessage,
+        content: {
+            msgtype: MsgType.Audio,
+            ["org.matrix.msc1767.audio"]: {
+                duration,
+            },
+            info: {
+                duration,
+            },
+            [VoiceBroadcastChunkEventType]: {
+                ...(sequence ? { sequence } : {}),
+            },
+        },
+        ts: timestamp,
+    });
+};