func testSuccessfulConnection()

in AppSyncRealTimeClientTests/ConnectionProvider/ConnectionProviderTests.swift [22:60]

• 29 lines of code
• 1 McCabe index (conditional complexity)

    func testSuccessfulConnection() {
        receivedNotConnected.isInverted = true
        receivedError.isInverted = true

        let onConnect: MockWebsocketProvider.OnConnect = { _, _, delegate in
            self.websocketDelegate = delegate
            DispatchQueue.global().async {
                delegate?.websocketDidConnect(provider: self.websocket)
            }
        }

        let onDisconnect: MockWebsocketProvider.OnDisconnect = { }

        let onWrite: MockWebsocketProvider.OnWrite = { message in
            guard RealtimeConnectionProviderTestBase.messageType(of: message, equals: "connection_init") else {
                XCTFail("Incoming message did not have 'connection_init' type")
                return
            }

            self.websocketDelegate.websocketDidReceiveData(
                provider: self.websocket,
                data: RealtimeConnectionProviderTestBase.makeConnectionAckMessage()
            )
        }

        websocket = MockWebsocketProvider(
            onConnect: onConnect,
            onDisconnect: onDisconnect,
            onWrite: onWrite
        )

        // Retain the provider so it doesn't release prior to executing callbacks
        let provider = createProviderAndConnect()

        // Get rid of "written to, but never read" compiler warnings
        print(provider)

        waitForExpectations(timeout: 0.05)
    }