R Under development (unstable) (2023-11-06 r85483 ucrt) -- "Unsuffered Consequences"
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Platform: x86_64-w64-mingw32/x64

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> library("matrixStats")
> 
> rowCounts_R <- function(x, value = TRUE, na.rm = FALSE, ..., useNames = NA) {
+   if (is.na(value)) {
+     counts <- apply(x, MARGIN = 1L, FUN = function(x)
+       sum(is.na(x))
+     )
+   } else {
+     counts <- apply(x, MARGIN = 1L, FUN = function(x)
+       sum(x == value, na.rm = na.rm)
+     )
+   }
+   # Preserve names attribute
+   names <- names(counts)  
+   counts <- as.integer(counts)
+   if (isTRUE(useNames) && !is.null(names)) names(counts) <- names
+   counts
+ } # rowCounts_R()
> 
> 
> # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> # Subsetted tests
> # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> source("utils/validateIndicesFramework.R")
> x <- matrix(runif(6 * 6, min = -3, max = 3), nrow = 6, ncol = 6)
> x[2:3, 3:4] <- NA_real_
> storage.mode(x) <- "integer"
> 
> # To check names attribute
> dimnames <- list(letters[1:6], LETTERS[1:6])
> 
> # 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)) {
+         validateIndicesTestMatrix(x, rows, cols,
+                                   ftest = rowCounts, fsure = rowCounts_R,
+                                   value = 0, na.rm = TRUE, useNames = useNames)
+         validateIndicesTestMatrix(x, rows, cols,
+                                   fcoltest = colCounts, fsure = rowCounts_R,
+                                   value = 0, na.rm = TRUE, useNames = useNames)
+         for (value in c(0, NA_integer_)) {
+           validateIndicesTestMatrix(x, rows, cols,
+                                     ftest = rowCounts, fsure = rowCounts_R,
+                                     value = value, useNames = useNames)
+           validateIndicesTestMatrix(x, rows, cols,
+                                     fcoltest = colCounts, fsure = rowCounts_R,
+                                     value = value, useNames = useNames)
+         }
+       }
+     }
+   }
+ }
> 
> x <- matrix(rep(letters, length.out = 6 * 6), nrow = 6, ncol = 6)
> x[2:3, 3:4] <- NA_character_
> # Test with and without dimnames on x
> for (setDimnames in c(TRUE, FALSE)) {
+   if (setDimnames) dimnames(x) <- dimnames
+   else dimnames(x) <- NULL
+   
+   count <- 0L
+   for (rows in index_cases) {
+     for (cols in index_cases) {
+       count <- count + 1L
+       na.rm <- c(TRUE, FALSE)[count %% 2 + 1]
+       useNames <- c(if (!matrixStats:::isUseNamesNADefunct()) NA, TRUE, FALSE)
+       useNames <- useNames[count %% length(useNames) + 1]
+       
+       validateIndicesTestMatrix(x, rows, cols,
+                                 ftest = rowCounts, fsure = rowCounts_R,
+                                 value = "g", na.rm = TRUE, useNames = useNames)
+       validateIndicesTestMatrix(x, rows, cols,
+                                 fcoltest = colCounts, fsure = rowCounts_R,
+                                 value = "g", na.rm = TRUE, useNames = useNames)
+       for (value in c("g", NA_character_)) {
+         validateIndicesTestMatrix(x, rows, cols,
+                                   ftest = rowCounts, fsure = rowCounts_R,
+                                   value = value, useNames = useNames)
+         validateIndicesTestMatrix(x, rows, cols,
+                                   fcoltest = colCounts, fsure = rowCounts_R,
+                                   value = value, useNames = useNames)
+       }
+     }
+   }
+ }
> 
> proc.time()
   user  system elapsed 
   2.79    0.06    2.84