C# 单元测试Web API IHttpActionResponse状态代码

我正在进行一个单元测试项目，以测试返回类型为

IHttpActionResponse

的WebAPIv2

我无法找到使用

IHttpActionResponse

返回类型测试所有状态代码的方法。尤其是post需要测试创建的http状态代码。在这里，我还为

Get

和

GetById

创建了一些测试。让我知道如何测试返回

IHttpActionResponse

的所有状态代码

API控制器代码

public class StudentController : ApiController
{
    IRepository<Student> repository;
    ITransformers<StudentModel, Student> transformer;

    public StudentController(IRepository<Student> studentRepository, ITransformers<StudentModel, Student> studentTransformer)
    {
        repository = studentRepository;
        transformer = studentTransformer;
    }

    [HttpGet]
    public IHttpActionResult Get()
    {
        IEnumerable<Student> students = null;

        try
        {
            students = repository.Get();

            if (students.Count<Student>() > 0)
            {
                return Ok(students);
            }
            else
            {
                return StatusCode(HttpStatusCode.NoContent);
                //return Content(HttpStatusCode.NoContent, students);
            }
        }
        catch (Exception ex)
        {
            return InternalServerError(ex);
        }
    }

    [HttpGet]
    public IHttpActionResult Get(int Id)
    {
        Student student = null;

        try
        {
            student = repository.GetById(Id);

            if (student != null)
            {
                return Ok(student);
            }
            else
            {
                return NotFound();
            }
        }
        catch (Exception ex)
        {
            return InternalServerError(ex);
        }
    }

    [HttpPost]
    public IHttpActionResult Post(StudentModel studentModel)
    {
        try
        {
            Student student = transformer.TransformModelToEntity(studentModel);
            int result = repository.Save(student);

            if (result > 0)
            {
                student.Id = result;
                return Content(HttpStatusCode.Created, student);
            }
            else
            {
                return InternalServerError();
            }
        }
        catch (Exception ex)
        {
            return InternalServerError(ex);
        }
    }

    [HttpPut]
    public IHttpActionResult Put(StudentModel studentModel)
    {
        try
        {
            Student student = transformer.TransformModelToEntity(studentModel);

            if (repository.Update(student))
            {
                return Content(HttpStatusCode.Accepted, studentModel);
            }
            else
            {
                return NotFound();
            }
        }
        catch (Exception ex)
        {
            return InternalServerError(ex);
        }
    }

    [HttpDelete]
    public IHttpActionResult Delete(int Id)
    {
        try
        {
            if(repository.Delete(Id))
            {
                return Ok();
            }
            else
            {
                return NotFound();
            }
        }
        catch (Exception ex)
        {
            return InternalServerError(ex);
        }
    }
}

BadRequest的试验方法

[TestMethod]
        public void PostReturnsBadRequest()
        {
            // Arrange
            //var mockFilter = new Mock<ModelStateValidationFilter>().Setup(x=>x.OnActionExecuting(It.IsAny<HttpActionContext>()))
            var controller = new StudentController(mockRepository.Object, mockTransformer.Object);

            // Act
            IHttpActionResult actionResult = controller.Post(new StudentModel { Id = 0, FirstName = "Raju", LastName = "", CourseId = 0 });
            var badResult = actionResult as NegotiatedContentResult<Student>;

            //Assert
            Assert.IsNotNull(actionResult);
            Assert.IsInstanceOfType(actionResult, typeof(BadRequestErrorMessageResult));
            //TODO: Check for status code bad request and 
            Assert.IsNotNull(badResult.Content);
            Assert.AreEqual(HttpStatusCode.Created, badResult.StatusCode);
        }

[TestMethod]
公共无效PostReturnsBadRequest（）
{
//安排
//var mockFilter=new Mock（）.Setup（x=>x.OnActionExecuting（It.IsAny（）））
var controller=newstudentcontroller（mockRepository.Object、mockTransformer.Object）；
//表演
IHttpActionResult actionResult=controller.Post（新的StudentModel{Id=0，FirstName=“Raju”，LastName=”，CourseId=0}）；
var badResult=作为NegotiatedContentResult的actionResult；
//断言
Assert.IsNotNull（actionResult）；
IsInstanceOfType（actionResult，typeof（BadRequestErrorMessageResult））；
//TODO:检查状态代码错误请求和
Assert.IsNotNull（badResult.Content）；
Assert.AreEqual（HttpStatusCode.Created、badResult.StatusCode）；
}

其中，模型中的lastname是必需的，因此API将返回BadRequest。但是如何在单元测试中模拟这种行为呢？

成功后，

Post（StudentModel StudentModel）

方法将返回一个

NegotiatedContentResult

return Content(HttpStatusCode.Created, student);

然而

postReturnsAccess

测试试图将其转换为

var createdResult = actionResult as CreatedNegotiatedContentResult<Student>;
//var createdResult = actionResult as CreatedAtRouteNegotiatedContentResult<Student>;

var createdResult=actionResult作为CreatedNegotiatedContentResult；
//var createdResult=actionResult作为createDatRouteneGottatedContentResult；

更新测试以匹配操作的预期内容，然后检查预期状态代码

// Act
IHttpActionResult actionResult = controller.Post(It.IsAny<StudentModel>());
var createdResult = actionResult as NegotiatedContentResult<Student>;

//Assert
Assert.IsNotNull(actionResult);
Assert.IsNotNull(createdResult.Content);
Assert.AreEqual(1, createdResult.Content.Id);
Asssert.AreEqual(HttpStatusCode.Created, createdResult.StatusCode); // <-- check status

//Act
IHttpActionResult actionResult=controller.Post（It.IsAny（））；
var createdResult=作为NegotiatedContentResult的actionResult；
//断言
Assert.IsNotNull（actionResult）；
Assert.IsNotNull（createdResult.Content）；
AreEqual（1，createdResult.Content.Id）；
Asssert.AreEqual（HttpStatusCode.Created，createdResult.StatusCode）；//谢谢你的更新。不知道控制器方法返回哪种类型的ContentResults。我们有任何相同的文档吗？我也在使用自定义筛选器验证模型状态并返回无效的BadRequest id状态。我很难在单元测试中模拟这种行为，因为这是来自customfilter的，并且该方法没有Return类型。用代码更新了问题。@user3625533文档。对于过滤器，您必须在单元测试中直接测试过滤器，或者在集成测试中间接测试过滤器，
return Content(HttpStatusCode.Created, student);

var createdResult = actionResult as CreatedNegotiatedContentResult<Student>;
//var createdResult = actionResult as CreatedAtRouteNegotiatedContentResult<Student>;

// Act
IHttpActionResult actionResult = controller.Post(It.IsAny<StudentModel>());
var createdResult = actionResult as NegotiatedContentResult<Student>;

//Assert
Assert.IsNotNull(actionResult);
Assert.IsNotNull(createdResult.Content);
Assert.AreEqual(1, createdResult.Content.Id);
Asssert.AreEqual(HttpStatusCode.Created, createdResult.StatusCode); // <-- check status