public static ISetup<T> SetupByName<T>(this Mock<T> mock, string methodName, params object[] args) where T : class
        {
            var argTypes = args.Select(a => a.GetType()).ToArray();
            var param = Expression.Parameter(typeof(T), "i");
            var method = typeof(T).GetMethod(methodName, argTypes);
            if (method == null) { throw new ArgumentException($"{typeof(T).Name} does not contain a method named \"{methodName}\".", nameof(methodName)); }
            var callArgs = args.Select(a => Expression.Constant(a, a.GetType()));
            var call = Expression.Call(param, method, callArgs);
            var exp = Expression.Lambda<Action<T>>(call, param);
            return mock.Setup(exp);
        }