[英]Unit test Moq generic type
我正在嘗試測試一個返回具有泛型類型的接口的方法,但我總是收到此錯誤:
System.ArgumentException : 無效的回調。 具有 0 個參數的方法上的設置無法使用不同數量的參數 (1) 調用回調。 在 Moq.MethodCall.SetReturnsResponse g__ValidateCallback|27_0(委托回調)
測試方法:
//Arrange
Mock<IClientService> clientService = new Mock<IClientService>();
clientService
.Setup(x => x.GetRabbitClient<AlertRequest>())
.Returns<IMessageQueueClient<AlertRequest>>(x => new Mock<IMessageQueueClient<AlertRequest>>().Object);
//Act
var client = clientService.Object.GetRabbitClient<AlertRequest>();
//Assert
Assert.NotNull(client);
客戶端服務類:
public class ClientService : IClientService
{
/// <inheritdoc />
public IMessageQueueClient<TMessage> GetRabbitClient<TMessage>() where TMessage : class, new()
{
ServiceCollection serviceCollection = new ServiceCollection();
IConfigurationRoot configuration = new ConfigurationBuilder()
.AddJsonFile("appsettings.json")
.Build();
serviceCollection.UseMessageQueueOptions<RabbitMQSettings>(configuration);
serviceCollection.UseMessageQueueFor<TMessage>();
var serviceProvider = serviceCollection.BuildServiceProvider();
return serviceProvider.GetRequiredService<IMessageQueueClient<TMessage>>();
}
}
ClientService 是被測試的類,所以你不需要模擬它。 我會做這樣的事情:
//Arrange
var clientService = new ClientService();
//Act
var client = clientService.GetRabbitClient<AlertRequest>();
//Assert
Assert.NotNull(client);
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