public void CombinationTestWhenDoublePair()
{
Combination comb = new Combination();
List <Card> test = new List <Card>();
test.Add(new Card('S', '2', 1));
test.Add(new Card('H', '2', 1));
test.Add(new Card('C', '7', 6));
test.Add(new Card('D', '8', 7));
test.Add(new Card('H', 'K', 12));
List <Card> test2 = new List <Card>();
test2.Add(new Card('H', '8', 7));
test2.Add(new Card('S', 'K', 12));
int res = comb.CheckDoublePair(test, test2);
Assert.AreNotEqual(0, res);
}