library(RXMCDA)
tree = newXMLDoc()
newXMLNode("xmcda:XMCDA",
namespace = c("xsi" = "http://www.w3.org/2001/XMLSchema-instance",
"xmcda" = "http://www.decision-deck.org/2009/XMCDA-2.0.0"),
parent=tree)
root<-getNodeSet(tree, "/xmcda:XMCDA")
categories<-newXMLNode("categories", parent=root[[1]], namespace=c())
newXMLNode("category", attrs = c(id="c1"), parent=categories, namespace=c())
newXMLNode("category", attrs = c(id="c2"), parent=categories, namespace=c())
y<-getNodeSet(tree,"//categories")
stopifnot(getNumberOfCategories(y[[1]])[[1]] == 2)
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