如何在测试中创建文件并将其转换为 HttpContent 对象？

Question

I am writing tests to test API responses. I need to test the response for a file upload to a .NET API.

So I need to pass a mock file through my post method as a HttpContent object. How can this be achieved? is there a way to create a file object within the test and convert it to the HttpContent object?

If it helps to know, I am using Xunit testing framework.

Answer 1

I assume HttpContent in the question is for HttpClient .

HttpContent is an abstract class, which cannot be instantiated. You will need to create one concrete derived class based on your request's content type.

In this case, as per the comment, you can use MultipartFormDataContent :

var content = new MultipartFormDataContent("your boundary");
var file = File.OpenRead("file path");
content.Add(new StreamContent(file), "name", "fileName");