public void FrameViewOrderByColumn()
{
FrameView original = GetTestFrame();
string columnName = "bmi";
FrameView reordered = original.OrderBy(columnName, SortOrder.Descending);
Assert.IsTrue(reordered.Columns.Count == original.Columns.Count);
Assert.IsTrue(reordered.Rows.Count == original.Rows.Count);
int columnIndex = reordered.GetColumnIndex(columnName);
for (int i = 1; i < reordered.Rows.Count; i++)
{
IComparable previous = (IComparable)reordered[i - 1, columnIndex];
IComparable current = (IComparable)reordered[i, columnIndex];
Assert.IsTrue(previous.CompareTo(current) >= 0);
}
}