+// ViewPartTree is a tree with the built nodes of its sizes.
+type ViewPartTree struct {
+ sizes map[NodeKey]int
+}
+
+func (v ViewBuiltTree) Built(_, _ int) (bool, error) {
+ return true, nil
+}
+
+func (ViewBuiltTree) Node(level, index int) (Node, bool, error) {
+ return treeTestNode(level, index, "a"), true, nil
+}
+