public void EmptyIsProperSubsetOfTest()
{
var intSetFirst = new GenericSet <int>();
var intSetSecond = new GenericSet <int>();
var firstData = new int[] { 5, 16, -32, 56, 0, 5, 44, 16, 13 };
for (int i = 0; i < firstData.Length; ++i)
{
intSetFirst.Add(firstData[i]);
}
Assert.IsTrue(intSetSecond.IsProperSubsetOf(intSetFirst));
}