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11 results

ChannelDefTests.swift

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  • MessageDeliveryCallback.swift 1.59 KiB
    import Bindings
    import XCTestDynamicOverlay
    
    public struct MessageDeliveryCallback {
      public enum Result: Equatable {
        case delivered(roundResults: [Int])
        case notDelivered(timedOut: Bool)
      }
    
      public init(handle: @escaping (Result) -> Void) {
        self.handle = handle
      }
    
      public var handle: (Result) -> Void
    }
    
    extension MessageDeliveryCallback {
      public static let unimplemented = MessageDeliveryCallback(
        handle: XCTUnimplemented("\(Self.self)")
      )
    }
    
    extension MessageDeliveryCallback {
      func makeBindingsMessageDeliveryCallback() -> BindingsMessageDeliveryCallbackProtocol {
        class Callback: NSObject, BindingsMessageDeliveryCallbackProtocol {
          init(_ callback: MessageDeliveryCallback) {
            self.callback = callback
          }
    
          let callback: MessageDeliveryCallback
    
          func eventCallback(_ delivered: Bool, timedOut: Bool, roundResults: Data?) {
            if delivered,
               !timedOut,
               let roundResultsData = roundResults,
               let roundResults = try? JSONDecoder().decode([Int].self, from: roundResultsData)
            {
              callback.handle(.delivered(roundResults: roundResults))
              return
            }
    
            if !delivered {
              callback.handle(.notDelivered(timedOut: timedOut))
              return
            }
    
            fatalError("""
              BindingsMessageDeliveryCallback received invalid parameters:
              - delivered → \(delivered)
              - timedOut → \(timedOut)
              - roundResults → \(roundResults.map { String(data: $0, encoding: .utf8) ?? "" } ?? "")
              """)
          }
        }
    
        return Callback(self)
      }
    }