如何测试在ASP.NET MVC中的自定义模型绑定？ [英] How to test custom Model Binders in ASP.NET MVC?

问题描述

我在我们的ASP.NET MVC应用程序编写一些自定义模型粘合剂（实施IModelBinder）。我想知道什么是单元测试他们一个很好的方法（粘合剂）？

I've written some custom model binders (implementing IModelBinder) in our ASP.NET MVC application. I'm wondering what is a good approach to unittest them (binders)?

推荐答案

我这样做的：

var formElements = new NameValueCollection() { {"FirstName","Bubba"}, {"MiddleName", ""}, {"LastName", "Gump"} };         
var fakeController = GetControllerContext(formElements);
var valueProvider = new Mock<IValueProvider>();           

var bindingContext = new ModelBindingContext(fakeController, valueProvider.Object, typeof(Guid), null, null, null, null);



private static ControllerContext GetControllerContext(NameValueCollection form) {
    Mock<HttpRequestBase> mockRequest = new Mock<HttpRequestBase>();
    mockRequest.Expect(r => r.Form).Returns(form);

    Mock<HttpContextBase> mockHttpContext = new Mock<HttpContextBase>();
    mockHttpContext.Expect(c => c.Request).Returns(mockRequest.Object);

    return new ControllerContext(mockHttpContext.Object, new RouteData(), new Mock<ControllerBase>().Object);
}

然后，我刚才在的BindingContext变量传递到实现IModelBinder接口的对象的BindModel方法。

And then I just passed in the bindingContext variable to the BindModel method of the object that implements the IModelBinder interface.

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