public async Task GivenHttpContext_AndIsWebSocketRequest_WhenCreate_ThenWebSocketAccepted_AndWebSocketTerminalServiceReturned()
{
// Arrange
var webSocketTerminalServiceConfiguration = new WebSocketTerminalServiceConfiguration
{
ReceiveBufferSize = 1024
};
var sut = new WebSocketConnectionService(
webSocketTerminalServiceConfiguration,
Mock.Of <ILogger <WebSocketTerminalService> >());
var mockHttpContext = new Mock <HttpContext>();
var mockWebSocket = new Mock <WebSocket>();
mockWebSocket.Setup(x => x.SendAsync(
It.IsAny <ArraySegment <byte> >(),
It.IsAny <WebSocketMessageType>(),
It.IsAny <bool>(),
It.IsAny <CancellationToken>()))
.Returns(Task.FromResult(true));
var mockWebSocketManager = new Mock <WebSocketManager>();
mockWebSocketManager
.Setup(x => x.AcceptWebSocketAsync())
.Returns(Task.FromResult(mockWebSocket.Object));
mockWebSocketManager.SetupGet(x => x.IsWebSocketRequest)
.Returns(true);
mockHttpContext.SetupGet(x => x.WebSockets)
.Returns(mockWebSocketManager.Object);
// Act
var result = await sut.Create(mockHttpContext.Object);
// Assert
Assert.NotNull(result);
}
public async Task GivenSerialPortCommunicationService_AndCancellationToken_WhenRunCommsLoopAsync_ThenDataReceivedFromWebSocket_AndWrittenToSerialPort()
{
// Arrange
var webSocketTerminalServiceConfiguration = new WebSocketTerminalServiceConfiguration
{
ReceiveBufferSize = 1024
};
var sut = new WebSocketTerminalService(
webSocketTerminalServiceConfiguration,
Mock.Of <ILogger <WebSocketTerminalService> >());
var mockSerialPortCommunicationService = new Mock <ISerialPortCommunicationService>();
var mockWebSocket = new Mock <WebSocket>();
var mockSerialPort = new Mock <ISerialPort>();
var cancellationTokenSource = new CancellationTokenSource();
var readFromSocket = false;
mockWebSocket.Setup(x => x.ReceiveAsync(
It.IsAny <ArraySegment <byte> >(),
It.IsAny <CancellationToken>()))
.ReturnsAsync((ArraySegment <byte> data, CancellationToken ct) =>
{
var result = new WebSocketReceiveResult(
0,
WebSocketMessageType.Text,
readFromSocket,
readFromSocket ? WebSocketCloseStatus.NormalClosure : null,
null);
readFromSocket = true;
return(result);
});
mockSerialPortCommunicationService.Setup(x => x.Write(
It.IsAny <byte[]>(),
It.IsAny <int>(),
It.IsAny <int>()));
mockSerialPortCommunicationService.SetupGet(x => x.SerialPort)
.Returns(mockSerialPort.Object);
mockSerialPort.SetupGet(x => x.Encoding)
.Returns(Encoding.ASCII);
sut.WebSocket = mockWebSocket.Object;
// Act
await sut.RunCommsLoopAsync(
mockSerialPortCommunicationService.Object,
cancellationTokenSource.Token);
// Assert
mockWebSocket.Verify(x => x.ReceiveAsync(
It.IsAny <ArraySegment <byte> >(),
It.IsAny <CancellationToken>()), Times.Exactly(2));
mockSerialPortCommunicationService.Verify(x => x.Write(
It.IsAny <byte[]>(),
It.IsAny <int>(),
It.IsAny <int>()), Times.Once);
}
public async Task GivenHttpContext_AndNotWebSocketRequest_WhenCreate_ThenNullReturned()
{
// Arrange
var webSocketTerminalServiceConfiguration = new WebSocketTerminalServiceConfiguration
{
ReceiveBufferSize = 1024
};
var sut = new WebSocketConnectionService(
webSocketTerminalServiceConfiguration,
Mock.Of <ILogger <WebSocketTerminalService> >());
var mockHttpContext = new Mock <HttpContext>();
var mockWebSocketManager = new Mock <WebSocketManager>();
mockWebSocketManager.SetupGet(x => x.IsWebSocketRequest)
.Returns(false);
mockHttpContext.SetupGet(x => x.WebSockets)
.Returns(mockWebSocketManager.Object);
// Act
var result = await sut.Create(mockHttpContext.Object);
// Assert
Assert.Null(result);
}
