xUnit test demonstrating MySQL generated sha1 password hashing in c#

MySQLPasswordTests.cs

using System;
using System.Security.Cryptography;
using System.Text;
using Xunit;

namespace Identity.Tests
{
    public class PasswordTests
    {
        [InlineData("test", "*94BDCEBE19083CE2A1F959FD02F964C7AF4CFC29")]
        [Theory]
        public void MySqlHash(string password, string hash) {
            var keyArray = Encoding.UTF8.GetBytes(password);
            var enc = new SHA1Managed();
            var encodedKey = enc.ComputeHash(enc.ComputeHash(keyArray));
            var builder = new StringBuilder(encodedKey.Length);
            foreach (var b in encodedKey) {
                builder.Append(b.ToString("X2"));
            }
            var generatedHash = "*" + builder.ToString();
            Assert.Equal(hash, generatedHash);
        }
    }
}