public void TBESG_AddRemove_RemoveAll()
{
ToggleButtonExclusiveSelectionGroup grp = new ToggleButtonExclusiveSelectionGroup();
Gtk.ToggleButton toAdd = new Gtk.ToggleButton();
Gtk.ToggleButton toAdd2 = new Gtk.ToggleButton();
Gtk.ToggleButton toAdd3 = new Gtk.ToggleButton();
Gtk.ToggleButton toAdd4 = new Gtk.ToggleButton();
Gtk.ToggleButton toAdd5 = new Gtk.ToggleButton();
grp.Append(toAdd);
grp.Append(toAdd2);
grp.Append(toAdd3);
grp.Append(toAdd4);
grp.Append(toAdd5);
Assert.AreEqual(5, grp.GetCountButton(), "There should be 5 buttons in the group");
grp.Select(toAdd3);
Assert.AreEqual(true, toAdd3.Active, "Control 3 should be selected.");
grp.RemoveAll();
Assert.AreEqual(0, grp.GetCountButton(), "There should be no button in the group");
Assert.AreEqual(false, toAdd3.Active, "Control 3 should no longer be selected.");
}