ExcludeFromCodeCoverage 排除自动生成的代码 [英] ExcludeFromCodeCoverage Exclude Auto-Generated Code

问题描述

有没有办法将自动生成的类标记为 ExcludeFromCodeCoverage.我正在其他领域使用该属性并且效果很好.但是如果你打开自动生成的家伙的代码并将这些类标记为 ExcludeFromCodeCoverage，一旦你重新生成那个类，它就会被覆盖.

Is there a way to mark an auto-generated class as ExcludeFromCodeCoverage. I am using that attribute in other areas and works great. But if you open the code of the auto-generated guy and mark the classes as ExcludeFromCodeCoverage, once you re-generate that class itll be over written.

我可以在 dbml 后面的代码中创建分部类，并将该属性应用到它，它可以工作，但是，这会产生很多分部类.

I can create partial classes in the code behind of the dbml and apply that attribute to it and it works, however, that would make for a lot of partial classes.

推荐答案

您可以使用 PostSharp或其他 AOP 框架来创建方面，将 ExcludeFromCodeCoverageAttribute 应用于指定的类型或命名空间:

You can use PostSharp or other AOP framework to create aspect which will apply ExcludeFromCodeCoverageAttribute to specified types or namespaces:

[Serializable]
[AttributeUsage(AttributeTargets.Assembly)]
[MulticastAttributeUsage(MulticastTargets.Class | MulticastTargets.Struct)]
[ProvideAspectRole(StandardRoles.PerformanceInstrumentation)]
public sealed class DisableCoverageAttribute : TypeLevelAspect, IAspectProvider
{
    public IEnumerable<AspectInstance> ProvideAspects(object targetElement)
    {
        Type disabledType = (Type)targetElement;

        var introducedExclusion = new CustomAttributeIntroductionAspect(
              new ObjectConstruction(typeof (ExcludeFromCodeCoverageAttribute)));

        return new[] {new AspectInstance(disabledType, introducedExclusion)};
    }
}

然后将此方面应用于程序集并提供要排除的命名空间.在编译期间，PostSharp 会将 ExcludeFromCodeCoverageAttribute 添加到 My.AutogeneratedCode 命名空间中的所有类:

Then just apply this aspect to assembly and provide namespace which you want to exclude. During compilation PostSharp will add ExcludeFromCodeCoverageAttribute to all classes in My.AutogeneratedCode namespace:

[assembly: DisableCoverage(AttributeTargetTypes="My.AutogeneratedCode.*")]

您可以在此处找到示例代码和说明.

Sample code and explanations you can find here.

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