public void getAllUniqueNodeIdsFromObjectType_ReturnsIds()
        {
            EnsureTestDocumentTypes();
            var ids         = CMSNode.getAllUniqueNodeIdsFromObjectType(new Guid(DocumentTypeObjectTypeId));
            var expectedIds = contentTypes.Select(c => c.Id).OrderBy(id => id);
            var actualIds   = ids.OrderBy(id => id);

            Assert.IsTrue(expectedIds.SequenceEqual(actualIds));
        }