如何在ASP.NET MVC中使用moq模拟HttpPostedFileBase

public interface IHttpPostedFileBaseWrapper
{
    string ContentType { get; }
    int ContentLength { get; }
    string FileName { get; }
    Stream InputStream { get; }
}

public ActionResult UploadFile(IHttpPostedFileBaseWrapper file)
{
    // 使用file对象进行文件上传操作
    // ...
}

var fileMock = new Mock<IHttpPostedFileBaseWrapper>();
fileMock.Setup(f => f.ContentType).Returns("image/jpeg");
fileMock.Setup(f => f.ContentLength).Returns(1024);
fileMock.Setup(f => f.FileName).Returns("example.jpg");
fileMock.Setup(f => f.InputStream).Returns(new MemoryStream());

var controller = new YourController();
var result = controller.UploadFile(fileMock.Object) as ActionResult;

// 对结果进行断言和验证
// ...