R Under development (unstable) (2023-10-04 r85267 ucrt) -- "Unsuffered Consequences"
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> library(matrixTests)
> source("utils/capture.r")
> 
> #--- less than 2 observations --------------------------------------------------
> 
> wrn <- 'row_jarquebera: 1 of the rows had less than 2 total observations.\nFirst occurrence at row 1'
> nacolumns <- c("df", "statistic", "pvalue")
> 
> # single observation
> res <- capture(row_jarquebera(1))
> stopifnot(all.equal(res$warning, wrn))
> stopifnot(all(is.na(res$value[,nacolumns])))
> stopifnot(all.equal(res$value$obs, 1))
> 
> # single observation with some NA values
> res <- capture(row_jarquebera(c(1,NA,NA)))
> stopifnot(all.equal(res$warning, wrn))
> stopifnot(all(is.na(res$value[,nacolumns])))
> stopifnot(all.equal(res$value$obs, 1))
> 
> # zero observations
> res <- capture(row_jarquebera(NA_integer_))
> stopifnot(all.equal(res$warning, wrn))
> stopifnot(all(is.na(res$value[,nacolumns])))
> stopifnot(all.equal(res$value$obs, 0))
> 
> 
> #--- all values are constant ---------------------------------------------------
> 
> wrn <- 'row_jarquebera: 1 of the rows had essentially constant values.\nFirst occurrence at row 1'
> nacolumns <- c("df", "statistic", "pvalue")
> 
> # two equal observations
> res <- capture(row_jarquebera(c(1,1)))
> stopifnot(all.equal(res$warning, wrn))
> stopifnot(all(is.na(res$value[,nacolumns])))
> stopifnot(all.equal(res$value$obs, 2))
> 
> # three equal observations with some NA values
> res <- capture(row_jarquebera(c(0,0,0,NA,NA)))
> stopifnot(all.equal(res$warning, wrn))
> stopifnot(all(is.na(res$value[,nacolumns])))
> stopifnot(all.equal(res$value$obs, 3))
> 
> 
> proc.time()
   user  system elapsed 
   0.17    0.01    0.18