Vista - How to unit test a Dataset?

Hi.

I have written unit tests for my helper classes that return simple
values as strings or integers. Now I need to test the methods that
deal with DataSets and DataTables. Is there any special issues when
running these kind of tests? I ask this because if I create a DataSet
from scratch reproducing the desired structure and compare this to the
real DataSet I got from running my helper class, the Assert.AreEqual
method says me they are not equal! But both DataSets have the same
tables, columns and number of records.

Any help would be greatly appreciated !

Regards,
RBScheer