Implement Knock action (until the SDK level)

libraries/matrix/api/src/main/kotlin/io/element/android/libraries/matrix/api/MatrixClient.kt

@@ -66,6 +66,7 @@ interface MatrixClient : Closeable {
     suspend fun uploadAvatar(mimeType: String, data: ByteArray): Result<Unit>
     suspend fun removeAvatar(): Result<Unit>
     suspend fun joinRoom(roomId: RoomId): Result<Unit>
+    suspend fun knockRoom(roomId: RoomId): Result<Unit>
     fun syncService(): SyncService
     fun sessionVerificationService(): SessionVerificationService
     fun pushersService(): PushersService

libraries/matrix/impl/src/main/kotlin/io/element/android/libraries/matrix/impl/RustMatrixClient.kt

@@ -451,6 +451,10 @@ class RustMatrixClient(
         }
     }
 
+    override suspend fun knockRoom(roomId: RoomId): Result<Unit> {
+        return Result.failure(NotImplementedError("Not yet implemented"))
+    }
+
     override suspend fun trackRecentlyVisitedRoom(roomId: RoomId): Result<Unit> = withContext(sessionDispatcher) {
         runCatching {
             client.trackRecentlyVisitedRoom(roomId.value)

libraries/matrix/test/src/main/kotlin/io/element/android/libraries/matrix/test/FakeMatrixClient.kt

@@ -106,7 +106,9 @@ class FakeMatrixClient(
     var joinRoomLambda: (RoomId) -> Result<Unit> = {
         Result.success(Unit)
     }
-
+    var knockRoomLambda: (RoomId) -> Result<Unit> = {
+        Result.success(Unit)
+    }
     var getRoomInfoFlowLambda = { _: RoomId ->
         flowOf<Optional<MatrixRoomInfo>>(Optional.empty())
     }
@@ -199,6 +201,8 @@ class FakeMatrixClient(
 
     override suspend fun joinRoom(roomId: RoomId): Result<Unit> = joinRoomLambda(roomId)
 
+    override suspend fun knockRoom(roomId: RoomId): Result<Unit> = knockRoomLambda(roomId)
+
     override fun sessionVerificationService(): SessionVerificationService = sessionVerificationService
 
     override fun pushersService(): PushersService = pushersService