public void Test_Traverse_RootNode_Has_No_Children_RootNode_Visited()
{
var rootNode = new MockNode();
_tree.RootNode = rootNode;
var traverser = new PostorderTraversalStrategy();
traverser.Traverse <object>(_tree, _visitor);
Assert.IsTrue(rootNode.WasVisisted);
Assert.IsTrue(_visitor.NodesVisited.Count == 1);
}
public void Test_Traverse_RootNode_Has_Children_Tree_Visited_In_Preorder_Order()
{
//Postorder pattern is 10, 5, 6, 2, 7, 8, 3, 9, 4, 1
var expected = new List <int> {
10, 5, 6, 2, 7, 8, 3, 9, 4, 1
};
BuildTreeForTest();
var traverser = new PostorderTraversalStrategy();
traverser.Traverse <object>(_tree, _visitor);
Assert.IsTrue(_visitor.NodesVisited.SequenceEqual(expected));
}