public void DuplicatePropertyInGroup()
{
IWritableMemoryGroup testGroup = new MemoryGroup();
MemoryProperty prop = new MemoryProperty("Property", new DataType("TestType", new MemoryProperty[0], new MemoryProperty[0]));
Assert.IsTrue(testGroup.Add(new MemoryItem(prop)), "Failed to add item.");
Assert.IsFalse(testGroup.Add(new MemoryItem(prop)), "Duplicate property was allowed to be added.");
}