如何在 Controller 中使用 Moq 模拟 HttpContext.Current.Request.Form

Question

How can I mock HttpContext.Current.Request.Form["something"] data in the tested controller? I can mock HttpContext.Current and it works but Request is readonly. I can not change the implementation of the controller where the Form data is used. I only have to write a test.

Answer 1

If you really can't change the implementation of the controller to use modelbinding, you can mock the request object easily enough:

var formData = new FormCollection(new Dictionary<string, Microsoft.Extensions.Primitives.StringValues> { { "test", "value" } });

var requestMock = new Mock<HttpRequest>();
requestMock.SetupGet(x => x.Form).Returns(formData);

var contextMock = new Mock<HttpContext>();
contextMock.SetupGet(x => x.Request).Returns(requestMock.Object);

Setup FormCollection how you need your example data to look.

As others have stated, it makes way more sense to use modelbinding since it abstracts away this requirement.

Actually, you didn't mention if you were using ASP.NET or Core, I assume .NET based on HttpContext.Current ?