如何单元测试调用服务总线队列客户端SendAsync方法的类

Question

我有一个接口，它有一个方法来创建队列客户端和消息工厂的实例。我已经创建了相同的具体实现，现在我正试图对用于发送消息队列的功能进行单元测试。我写了下面的代码:

private readonly Mock<IQueueClientProvider> queueClientProvider;
private readonly Mock<IJsonSerializer> jsonSerializer;
private readonly Mock<ILogger<QueueConnector>> logger;
private readonly ModelLogger<QueueConnector> modelLogger;
private readonly QueueConnector queueConnector;
private readonly Mock<QueueClient> queueClient;
public QueueConnectorTests() 
{
   queueClientProvider = new Mock< IQueueClientProvider >();
   queueClient = new Mock< QueueClient >();
   logger = new Mock< ILogger< QueueConnector >>();
   jsonSerializer = new Mock< IJsonSerializer >();
   modelLogger = new ModelLogger<QueueConnector>(logger.Object,     jsonSerializer.Object);
queueConnector = new QueueConnector(modelLogger, queueClientProvider.Object);
}
[Fact]
public async void ShouldBeAbleToSendMessage()
{
  BrokeredMessage brokeredMessage = new BrokeredMessage();
brokeredMessage.CorrelationId = "0HKVUFCD6Q5JL";
queueClientProvider.Setup(q =>q.CreateQueueClient()).Returns(queueClient.Object);
// Act
await queueConnector.SendMessage(brokeredMessage);
// Assert
 queueClient.Verify(q => q.SendAsync(brokeredMessage));

}

但是得到异常

类型为'System '的异常。日志含义发生NotSupportedExceptionMscorlib.dll，但未在用户代码中处理

附加信息:父类没有默认构造函数。必须显式定义默认构造函数。

有人能帮我这个不知道出了什么问题吗?

Answer 1

您应该在代码中使用IQueueClient接口而不是QueueClient实现。SendAsync方法是IQueueClient继承的ISenderClient接口的一部分。

一旦你使用了IQueueClient，你可以这样做:

var queueClientMock = new Mock<IQueueClient>();
queueClientMock.Setup(x => 
x.SendAsync(It.IsAny<Message>))).Returns(Task.CompletedTask).Verifiable();