Question

I have controller API methods for which I have to write test case methods. As of now, I ve been writing integration test methods for the project. I m not sure how to frame unit test case methods for API methods like below:

www.un.org/chinese/sc/presidency.asp

[HttpPost]
public IHttpActionResult PostCancelEmployee(EmployeeRequest req)
{
    string id = req.EmployeeId;
    EmployeeDetails mgr = new EmployeeDetails(id);
    response = mgr.CancelEmployeeDetails(req);
}

如果我撰写一体化测试案例,那么抽样投入/要求参数就会根据数据库变化,导致测试案例失败。谁能帮助我用Moq框架为这些类型的APIC方法撰写单位测试案例?

Answer 1

微软文件在使用Moq对APIC控制器方法进行单位测试方面有一些很好的例子。下面是你所领导的控制者可能认为什么的基本例子。

www.un.org/Depts/DGACM/index_spanish.htm

public class EmployeeController : ApiController
{
    IEmployeeRepository _repository;

    public EmployeeController(IEmployeeRepository repository)
    {
        _repository = repository;
    }

    [HttpGet]
    public IHttpActionResult Get(int id)
    {
        Employee employee = _repository.GetById(id);
        if (employee == null)
        {
            return NotFound();
        }
        return Ok(employee);
    }

    [HttpPost]
    public IHttpActionResult Post(Employee employee)
    {
        _repository.Add(employee);
        return CreatedAtRoute("DefaultApi", new { id = employee.Id }, employee);
    }
    
    [HttpDelete]
    public IHttpActionResult Delete(int id)
    {
        _repository.Delete(id);
        return Ok();
    }

    [HttpPut]
    public IHttpActionResult Put(Employee employee)
    {
        // Do some work (not shown).
        return Content(HttpStatusCode.Accepted, employee);
    }
}

这里最大的变化是,将“你”类别中的usage与数据库互动,从娱乐/>。您的榜样是,在您的APIC方法中,你正在即时推出一个新的<代码>EmployeeDetails。最好把任何附属物作为接口注入你的控制器,以便能够在你的测试中轻易加以改动。

此处为核查<代码>的单位试验雇员/编码方法回归类型和数据:

[TestMethod] public void GetReturnsEmployeeWithSameId() { // Arrange var mockRepository = new Mock<IEmployeeRepository>(); mockRepository.Setup(x => x.GetById(42)) .Returns(new Employee { Id = 42 }); var controller = new EmployeeController(mockRepository.Object); // Act IHttpActionResult actionResult = controller.Get(42); var contentResult = actionResult as OkNegotiatedContentResult<Employee>; // Assert Assert.IsNotNull(contentResult); Assert.IsNotNull(contentResult.Content); Assert.AreEqual(42, contentResult.Content.Id); }

其他测试例子,包括其余的APIC方法,均列入相关文件。

作为what的测试,一般建议验证:

The action returns the correct type of response.
Invalid parameters return the correct error response.
The action calls the correct method on the repository or service layer.
If the response includes a domain model, verify the model type.

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