public void TestRetainAll()
{
IntList list = new IntList();
for (int j = 0; j < 1000; j++)
{
list.Add(j);
}
IntList listCopy = new IntList(list);
IntList listOdd = new IntList();
IntList listEven = new IntList();
for (int j = 0; j < 1000; j++)
{
if (j % 2 == 0)
{
listEven.Add(j);
}
else
{
listOdd.Add(j);
}
}
list.RetainAll(listOdd);
//Assert.AreEqual(list, listOdd);
Assert.IsTrue(list.Equals(listOdd));
list.RetainAll(listEven);
Assert.IsTrue(list.IsEmpty());
listCopy.RetainAll(listEven);
//Assert.AreEqual(listCopy, listEven);
Assert.IsTrue(listCopy.Equals(listEven));
listCopy.RetainAll(listOdd);
Assert.IsTrue(listCopy.IsEmpty());
}