public void Fn_TC3_AddToTree(string letter)
{
mp.Refresh();
List <string> before = mp.GetTreeItems();
// remove before add in exists
if (before.Contains(letter))
{
mp.DelTreeItem(letter);
}
before = mp.GetTreeItems();
Assert.IsFalse(before.Contains(letter), "req 1.3.1 'delete' letter failed, 'Add' could not be checked");
mp.AddTreeItem(letter);
before = mp.GetTreeItems();
Assert.IsTrue(before.Contains(letter), "req 1.3.1 'Add' do not add letter {0} to tree", letter);
}
