c# - AutoFixture 无法创建匿名 MVC Controller

Question

代码:

IFixture fixture = new Fixture().Customize(new AutoMoqCustomization());
fixture.Customize<ViewDataDictionary>(c => c.Without(x => x.ModelMetadata));
var target = fixture.CreateAnonymous<MyController>();

异常:

System.Reflection.TargetInvocationException: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NotImplementedException: The method or operation is not implemented.

MyController() 有 3 个参数。

我已经尝试了答案 here 中描述的修复但这是行不通的。

Answer 1

As it seems ，当使用 MVC 4 时，您必须以不同的方式自定义 Fixture 实例。

如果您替换，测试应该通过:

fixture.Customize<ViewDataDictionary>(c => c
    .Without(x => x.ModelMetadata));

与:

fixture.Customize<ControllerContext>(c => c
    .Without(x => x.DisplayMode));

---

您可以选择创建一个 composite所需的定制:

internal class WebModelCustomization : CompositeCustomization
{
    internal WebModelCustomization()
        : base(
            new MvcCustomization(),
            new AutoMoqCustomization())
    {
    }

    private class MvcCustomization : ICustomization
    {
        public void Customize(IFixture fixture)
        {
            fixture.Customize<ControllerContext>(c => c
                .Without(x => x.DisplayMode));
        }
    }
}

然后，原始测试可以重写为:

[Fact]
public void Test()
{
    var fixture = new Fixture()
        .Customize(new WebModelCustomization());

    var sut = fixture.CreateAnonymous<MyController>();

    Assert.IsAssignableFrom<IController>(sut);
}