public void FailsWhenFirstArgIsNull()
{
var rng = new Random();
IEnumerable <int> a = null;
Assert.Throws <ArgumentNullException>(() => ShuffleOps.ShuffleCopy(a, rng));
}
public void FailsWhenSecondArgIsNull()
{
Random rng = null;
var a = new List <int> {
1, 2, 3
};
Assert.Throws <ArgumentNullException>(() => ShuffleOps.ShuffleCopy(a, rng));
}
public void Works()
{
var rng = new Random(Seed: 5);
var a = new List <int> {
1, 2, 3, 4, 5, 6
};
var b = ShuffleOps.ShuffleCopy(a, rng);
Assert.Equal(new[] { 6, 1, 4, 5, 2, 3 }, b);
}
private static void Example2()
{
var rng = new Random(Seed: 5);
var a = new List <int> {
1, 2, 3, 4, 5, 6
};
var b = ShuffleOps.ShuffleCopy(a, rng);
Console.WriteLine(string.Join(", ", b));
}
public IChromosome GenerisiRandomTestSaOblastima(List <int> oblasti, int Length)
{
List <Question> questionsNova = new List <Question>();
Test result = null;
Random r = new Random();
do
{
//Bira iz banke nasumicno pitanja samo koja sadrze te oblasti
var questionsDomain = GetQuestionsWhichContainDomains(oblasti);
questionsNova.AddRange(ShuffleOps.ShuffleCopy <Question>(questionsDomain, r).Take(Length - questionsNova.Count));
questionsNova = questionsNova.Distinct().ToList();
result = new Test(questionsNova, Length);
}while (result.HasDuplicate());
return(result);
}
/// <summary>Returns a shuffled array of an <see cref="IEnumerable{T}"/>.</summary>
/// <typeparam name="T">Type of items in <paramref name="source"/>.</typeparam>
/// <param name="source">The enumerable to shuffle.</param>
/// <param name="randomNumberGenerator">The random number generator to use.</param>
/// <exception cref="ArgumentNullException">If <paramref name="source"/> is null - or <paramref name="randomNumberGenerator"/> is null.</exception>
public static T[] ShuffleCopy <T>(this IEnumerable <T> source, Random randomNumberGenerator)
=> ShuffleOps.ShuffleCopy(source, randomNumberGenerator);