以下构造函数参数没有匹配的灯具数据

Question

我正在尝试使用我的控制器进行测试，xUnit但在执行Customer Controller的过程中收到以下错误：

“以下构造函数参数没有匹配的夹具数据：CustomerController customerController”

测试班

public class UnitTest1
{
    CustomerController _customerController;

    public UnitTest1(CustomerController customerController)
    {
        _customerController = customerController;
    }

    [Fact]
    public void PostTestSuccessful()
    {
        Guid guid = Guid.NewGuid();

        CustomerViewModel model = new CustomerViewModel()
        {
            Id = guid,
            Name = "testName",
            Email = "test email",
            PhoneNumber = "test phone",
            Address = "test address",
            City = "test city",
            Gender = "Male"
        };

        var actionResult = _customerController.Post(model);

        Assert.NotNull(actionResult);
        Assert.IsType<Task<IActionResult>>(actionResult);
        Assert.True(actionResult.IsCompletedSuccessfully);
    }

CustomerController类

[Route("customers")]
public class CustomerController : ControllerBase
{
    private readonly ILogger _logger;
    private readonly ICustomerService _customerService;

    public CustomerController(ILogger<CustomerController> logger,
        ICustomerService customerService)
    {
        _logger = logger;
        _customerService = customerService;
    }

    [HttpPost]
    public async Task<IActionResult> Post([FromBody] CustomerViewModel viewModel)
    {
        var customerToBeSaved = viewModel.Adapt<CustomerServiceModel>();

        var customer = await _customerService.SaveAsync(customerToBeSaved);

        var result = customer.Adapt<CustomerViewModel>();

        return Ok(result);
    }

Answer 1

您缺少的是测试类的 IClassFixture 接口。这将解决问题...

public class UnitTest1 : IClassFixture<CustomerController>

Answer 2

这篇文章展示了如何让 xunit 很好地与 .Net Core ASP.Net 一起工作。它实际上取代了启动，以便您的控制器在同一进程中运行，您可以像在本地一样测试它们。

https://docs.microsoft.com/en-us/aspnet/core/test/integration-tests

它允许您的标准 .Net 依赖注入正常工作。此外，它具有不作为服务器运行的惊人好处，它伪造了整个启动过程，以便它在单个进程中运行，您可以一直调试。这也是你应该这样做的方式，因为微软是这么说的。

从文章底部的论坛中可以获得更多帮助。

Answer 3

如果您不想使用任何模拟框架，只需在构造函数中新建 CustomerController。

Answer 4

对于测试框架，您需要使用模拟库在测试类中通过 DI 注入模拟对象。您可以使用 Nmock、Moq 或任何其他模拟库来设置构造函数注入。

https://www.c-sharpcorner.com/uploadfile/john_charles/mocking-in-net-with-moq/

http://nmock.sourceforge.net/quickstart.html