FizzBuzz kata in C# using FsCheck and NUnit

FizzBuzzerTests.cs

using System;
using System.Collections.Generic;
using System.Linq;
using FsCheck.Fluent;
using NUnit.Framework;

namespace FizzBuzz
{
    [TestFixture]
    public class FizzBuzzerTests
    {
        [TestCase(3, "Fizz")]
        [TestCase(5, "Buzz")]
        [TestCase(15, "FizzBuzz")]
        public void Given_Value_Translator_Result_Must_Contain_Given(int value, string contains)
        {
            var fizzbuzzer = new FizzBuzzer();

            Spec.For(
                Any.OfType<int>().Where(x => x%value == 0),
                x => fizzbuzzer.Translate(x).Contains(contains)).QuickCheckThrowOnFailure();
        }

        [TestCase]
        public void Given_A_Value_Not_Divisible_By_3_Nor_5_It_Must_Return_Value()
        {
            var fizzbuzzer = new FizzBuzzer();
            Spec.For(
                Any.OfType<int>().Where(x => x%3 != 0).Where(x => x%5 != 0),
                x => fizzbuzzer.Translate(x).Equals(x.ToString())).QuickCheckThrowOnFailure();
        }
    }

    public class FizzBuzzer
    {
        public string Translate(int value)
        {
            var result = (new List<Func<int, string>>
            {
                (x => x%3 == 0 ? "Fizz" : string.Empty),
                (x => x%5 == 0 ? "Buzz" : string.Empty)
            }).Aggregate(string.Empty, (m, f) => m += f(value));

            return string.IsNullOrEmpty(result) ? value.ToString() : result;
        }
    }
}