public void Relations()
{
Relation [] set = radioButton.RelationSet;
Assert.AreEqual (1, set.Length, "RelationSet length");
Assert.AreEqual (RelationType.MemberOf, set [0].Type, "RelationSet[0].Type");
Assert.AreEqual (3, set[0].Targets.Length, "RelationSet[0].Targets.Length");
Assert.AreEqual ("Cherry", set [0].Targets [0].Name, "RelationSet[0].Targets[0].Name");
Assert.AreEqual ("Banana", set [0].Targets [1].Name, "RelationSet[0].Targets[1].Name");
Assert.AreEqual ("Apple", set [0].Targets [2].Name, "RelationSet[0].Targets[2].Name");
}