public void Sys_index_columns_null()
{
index_columns i = new index_columns();
List<index_columns> il = i.ToList;
Assert.AreEqual<List<index_columns>>(il, null);
}
public void Sys_index_columns()
{
index_columns i = new index_columns(connStr);
List<index_columns> il = i.ToList;
Assert.AreNotEqual<List<index_columns>>(il, null);
}