gistfile1.txt

struct MockWebsocketService: WebSocketService {
    let publisher: AnyPublisher<Data, Error>
    
    init(characters: [GameState.GameCharacter]) {
        let state = GameState(characters: characters)
        let data = try! JSONEncoder().encode(state)
        self.publisher = Just(data)
            .setFailureType(to: Error.self)
            .eraseToAnyPublisher()
    }
}