Question

控制器：

private IBeer _beerService;

public BeerController(IBeer beerService)
{
    _beerService = beerService;
}

[HttpPost]
public async Task<IActionResult> Post([FromBody]Beer model)
{
     if (!ModelState.IsValid)
     {
          return BadRequest(ModelState);
     }
     var beer = await _beerService.Add(model);
     return Ok(CreatedAtAction("Add Item", new { beer.id }, beer));
}

型号：

public class Beer
    {
        public int id { get; set; }
        public string name { get; set; }
        public int cost { get; set; }
    }

接口：

public interface IBeer
    {
        Task<Beer> Add(Beer beer);
    }

测试：

[Fact]
        public void TestPostWithMock()
        {
            // Arrange
            var serviceMock = new Mock<IBeer>();
            List<Beer> expected = new List<Beer>()
            {
                new Beer{id=2, beer="Kingfisher", cost=170 },
            };
            serviceMock.Setup(x => x.Add(expected)).Returns(() => Task.FromResult(beer));
            var controller = new BeerController(serviceMock.Object);

            // Act
            var result = controller.Get(2);

            // Assert
            var okResult = result.Should().BeOfType<OkObjectResult>().Subject;
            var actual = okResult.Value.Should().BeAssignableTo<IEnumerable<Beer>>().Subject;

            Assert.Equal(expected, actual);
        }

我正在尝试模拟发帖请求，但是当我在此处尝试模拟发帖请求时：

x => x.Add(expected)

这给我一个错误-Generic.list无法转换为Controller.Beer。应该怎么做？

Answer 1

正如错误描述所述，您在设置服务时将啤酒清单（List<Beer>）发送到Add()方法。您应该发送Beer类实例（如在您的界面中）作为参数，如下所示。

// Update your request object without List 
var expected = new  Beer()  
    {
        id=2,
        beer="Kingfisher",
        cost=170
     };

而且，如下更新安装程序功能。

serviceMock.Setup(x => x.Add(expected)).Returns(() => Task.FromResult(expected));

最后，您需要像控制器一样从controller.Post()方法获得结果，而不是从controller.Get(2)获得结果。希望对您有帮助。

如何模拟发布请求？

1 个答案: