如何在没有默认构造函数的对象上模拟方法？

public interface IFoo
{
    int Test(int myParameter);
    int TestInternal(int myParameter);
}

public class Foo : IFoo
{
    private int _someConstructorArgument;

    public Foo(int someConstructorArgument)
    {
        _someConstructorArgument = someConstructorArgument;
    }

    public virtual int Test(int myParameter)
    {
        return _someConstructorArgument + TestInternal(myParameter);
    }

    public virtual int TestInternal(int myParameter)
    {
        return myParameter;
    }
}

public class Program
{
    static void Main(string[] args)
    {
        var mock = new Mock<Foo>(MockBehavior.Loose, 50);

        mock.Setup(x => x.TestInternal(100))
            .Returns(200);

        mock.CallBase = true;

        Console.WriteLine(mock.Object.Test(100));
        Console.ReadLine();
    }
}