*/
    private static List<VirtualFileSystemTestSpec> onlyDirectChildren(List<VirtualFileSystemTestSpec> fullList) {
        return fullList.findAll { it.childPaths.every { !it.contains('/') } }
    }

addTreeValuesToHistogramSet(rootNode,histogramSet){const rootPath=[[],[],[]];this.rootNode_=rootNode;this.histogramSet_=histogramSet;this.reportDataFromTree_(this.rootNode_,rootPath);}