.net - 用于单元测试 api Controller 的示例代码

Question

是否有显示单元测试从 api Controller 继承的 Controller 的示例代码？
我正在尝试对 POST 进行单元测试，但它失败了。我相信我需要设置 HttpControllerContext 进行测试，但不知道如何
谢谢

Answer 1

此代码应演示后测试的基础知识。假设您有一个存储库注入(inject)到 Controller 中。如果您使用的是 Beta，我在这里使用的是 MVC 4 RC 而不是 Beta，Request.CreateResponse(... 有点不同，所以请给我留言...

给定 Controller 代码有点像这样:

public class FooController : ApiController
{
    private IRepository<Foo> _fooRepository;

    public FooController(IRepository<Foo> fooRepository)
    {
        _fooRepository = fooRepository;
    }

    public HttpResponseMessage Post(Foo value)
    {
        HttpResponseMessage response;

        Foo returnValue = _fooRepository.Save(value);
        response = Request.CreateResponse<Foo>(HttpStatusCode.Created, returnValue, this.Configuration);
        response.Headers.Location = "http://server.com/foos/1";

        return response;
    }
}

单元测试看起来有点像这样(NUnit 和 RhinoMock)

        Foo dto = new Foo() { 
            Id = -1,
            Name = "Hiya" 
        };

        IRepository<Foo> fooRepository = MockRepository.GenerateMock<IRepository<Foo>>();
        fooRepository.Stub(x => x.Save(dto)).Return(new Foo() { Id = 1, Name = "Hiya" });

        FooController controller = new FooController(fooRepository);

        controller.Request = new HttpRequestMessage(HttpMethod.Post, "http://server.com/foos");
        //The line below was needed in WebApi RC as null config caused an issue after upgrade from Beta
        controller.Configuration = new System.Web.Http.HttpConfiguration(new System.Web.Http.HttpRouteCollection());

        var result = controller.Post(dto);

        Assert.AreEqual(HttpStatusCode.Created, result.StatusCode, "Expecting a 201 Message");

        var resultFoo = result.Content.ReadAsAsync<Foo>().Result;
        Assert.IsNotNull(resultFoo, "Response was empty!");
        Assert.AreEqual(1, resultFoo.Id, "Foo id should be set");