Function getNodes

src/cdk/tree/tree.spec.ts:1627–1629

(treeElement: Element)

}

function getNodes(treeElement: Element): HTMLElement[] {
  return Array.from(treeElement.querySelectorAll('.cdk-tree-node'));
}

function getExpandedNodes<T>(nodes: T[] | undefined, tree: CdkTree<T>): T[] {
  return nodes?.filter(node => tree.isExpanded(node)) ?? [];