R version 4.4.0 beta (2024-04-09 r86391 ucrt) -- "Puppy Cup"
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Platform: x86_64-w64-mingw32/x64

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> library("matrixStats")
> 
> rowOrderStats_R <- function(x, probs, ..., useNames = NA) {
+   ans <- apply(x, MARGIN = 1L, FUN = quantile, probs = probs, type = 3L)
+ 
+   # Remove Attributes
+   if (is.na(useNames) || !useNames || length(ans) == 0L) attributes(ans) <- NULL
+   ans
+ } # rowOrderStats_R()
> 
> 
> # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> # Subsetted tests
> # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> source("utils/validateIndicesFramework.R")
> x <- matrix(runif(6 * 6, min = -6, max = 6), nrow = 6, ncol = 6)
> storage.mode(x) <- "integer"
> 
> # To check names attribute
> dimnames <- list(letters[1:6], LETTERS[1:6])
> 
> probs <- 0.3
> # Test with and without dimnames on x
> for (setDimnames in c(TRUE, FALSE)) {
+   if (setDimnames) dimnames(x) <- dimnames
+   else dimnames(x) <- NULL
+   for (rows in index_cases) {
+     for (cols in index_cases) {
+       # Check names attribute
+       for (useNames in c(if (!matrixStats:::isUseNamesNADefunct()) NA, TRUE, FALSE)) {
+         if (is.null(cols)) which <- round(probs * ncol(x))
+         else {
+           xxrows <- rows
+           suppressWarnings({
+             xx <- tryCatch(x[, cols, drop = FALSE], error = function(c) "error")
+             if (identical(xx, "error")) which <- 0L
+             else which <- round(probs * ncol(xx))
+           })
+         }
+         if (which == 0L) next
+     
+         validateIndicesTestMatrix(x, rows, cols,
+                                   ftest = rowOrderStats, fsure = rowOrderStats_R,
+                                   which = which, probs = probs, useNames = useNames)
+         validateIndicesTestMatrix(x, rows, cols,
+                                   fcoltest = colOrderStats, fsure = rowOrderStats_R,
+                                   which = which, probs = probs, useNames = useNames)
+       }
+     }
+   }
+ }
> 
> proc.time()
   user  system elapsed 
   0.93    0.04    0.96