library(RXMCDA)
tree <- xmlTreeParse(system.file("extdata","testFile.xml",package="RXMCDA"), useInternalNodes=TRUE)
altIDs <- getAlternativesIDs(tree)
perfTable <- getPerformanceTables(tree)
comps <- getAlternativesComparisons(tree, perfTable[[1]])
stopifnot(all.equal(dim(comps[[1]]), c(13,11)))
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