I'm new to Rhino mock and i would like to know if the test i did is not fake testing as i red a lot about it. are there any improvements need to be done?

[Test]
public void GenerateDateTable_Returns_DataTableOfGroup()
{
    //Arrange
    var groupStub = MockRepository.GenerateStub<Group>();
    var groupEnumerable = new[] { groupStub };
    var mockgroup = MockRepository.GenerateMock<FillTableRow<Group>>();
    mockgroup.Replay();
    //Act
    mockgroup.GenerateDateTable(groupEnumerable);

    //Assert
    Assert.IsTrue(mockgroup.DataTableBatch.Columns.Count == 3);
}

public class FillTableRow<T>
{
    public DataTable DataTableBatch { get; set; }

    public DataTable GenerateDateTable(IEnumerable<T> enumerable)
    {
        IDbObjectFactory<T> tableFactory = new TableFactory<T>();
        DataTableBatch = (DataTable)tableFactory.GetDbObject();

        foreach (var row in enumerable)
        {
            AddRow(row);
        }
        return DataTableBatch;
    }
}

I'm new to Rhino mock and I would like to know if the test I did is not fake testing, as I've read a lot about it. Are there any improvements that need to be done?

[Test]
public void GenerateDateTable_Returns_DataTableOfGroup()
{
    //Arrange
    var groupStub = MockRepository.GenerateStub<Group>();
    var groupEnumerable = new[] { groupStub };
    var mockgroup = MockRepository.GenerateMock<FillTableRow<Group>>();
    mockgroup.Replay();
    //Act
    mockgroup.GenerateDateTable(groupEnumerable);

    //Assert
    Assert.IsTrue(mockgroup.DataTableBatch.Columns.Count == 3);
}

public class FillTableRow<T>
{
    public DataTable DataTableBatch { get; set; }

    public DataTable GenerateDateTable(IEnumerable<T> enumerable)
    {
        IDbObjectFactory<T> tableFactory = new TableFactory<T>();
        DataTableBatch = (DataTable)tableFactory.GetDbObject();

        foreach (var row in enumerable)
        {
            AddRow(row);
        }
        return DataTableBatch;
    }
}