存根访问受保护的变量。

I need to test this class:

我需要测试这个类:

public abstract class GaBase
{
    protected GoogleAnalyticsInfo GAInfo;

    protected abstract void PopulateGAInfo();

    public string GetGoogleAnalyticsTag()
    {
        //Return any info related to GAInfo
    }

    //Some other stuffs
}
public