sample code breaker

Breaker.cs

// this breaker was used on @scichelli's
// collection comparer
// https://gist.github.com/3836918/

[Test]
public void Breaker()
{
	var legal = GetIntLegals();
	for (int i = 0; i < 1000000; i++)
	{
		var expected = legal
			.Concat(legal)
			.Shuffle()
			.Take(4)
			.Concat(new[] { "...", "..." }.Random(1, 2))
			.Shuffle()
			.ToArray();

		var actual = expected.Select(x => x == "..." ? legal.Random(0, 3) : new[] { x })
					.SelectMany(x => x)
					.ToArray();

		var expectedText = "     var expected = new[] { \"" + String.Join("\", \"", expected) + "\" };";
		var actualText = "     var actual = new[] { \"" + String.Join("\", \"", actual) + "\" };";
		try
		{
			AssertStructure(actual, expected);
		}
		catch (Exception exception)
		{
			Console.WriteLine("Broke it with:" + exception.Message);
			Console.WriteLine(expectedText);
			Console.WriteLine(actualText);
			break;
		}
	}
}

public IList<string> GetIntLegals()
{
	return "1234567890".Select(x => "" + x).ToList();
}

public IList<string> GetIntLetterLegals()
{
	var legal1 = "1234567890".Select(x => "" + x).ToList();
	var legal2 = "ABCDEFGHIJKLMNOPQRSTUVWXYZ".Select(x => "" + x).ToList();
	var legal = (from n in legal1
					from m in legal2
					select n + m).ToList();
	return legal;
}
public IList<string> GetVisibleTextLegals()
{
	var legal = @"qwertyuiop[]\asdfghjkl;'zxcvbnm,./`1234567890-=~!@#$%^&*()_+QWERTYUIOP{}|ASDFGHJKL:""ZXCVBNM<>?".Select(x => "" + x).ToList(); 
	return legal;
}

Extensions.cs

public static class Extensions
{
	private static readonly Random Rnd = new Random();

	public static IList<T> Random<T>(this IEnumerable<T> list, int min, int max)
	{
		var items = list.ToList();
		var rand = Rnd.Next(min, max + 1);
		return items.Shuffle().Take(rand).ToArray();
	}

	public static IEnumerable<T> Shuffle<T>(this IEnumerable<T> list)
	{
		var toreturn = new List<T>(list);
		for (var i = 1; i < toreturn.Count; i++)
		{
			var pos = Rnd.Next(i + 1);
			var x = toreturn[i];
			toreturn[i] = toreturn[pos];
			toreturn[pos] = x;
		}
		return toreturn;
	}
}