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_andersondarling: 1 of the rows had less than 8 total observations.\nFirst occurrence at row 1'
> nacolumns <- c("statistic", "pvalue")
> 
> # single observation
> res <- capture(row_andersondarling(1))
> stopifnot(all.equal(res$warning, wrn))
> stopifnot(all(is.na(res$value[,nacolumns])))
> stopifnot(all.equal(res$value$obs, 1))
> 
> # seven observations with some NA values
> res <- capture(row_andersondarling(c(rnorm(7),NA,NA)))
> stopifnot(all.equal(res$warning, wrn))
> stopifnot(all(is.na(res$value[,nacolumns])))
> stopifnot(all.equal(res$value$obs, 7))
> 
> # zero observations
> res <- capture(row_andersondarling(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_andersondarling: 1 of the rows had essentially constant values.\nFirst occurrence at row 1'
> nacolumns <- c("statistic", "pvalue")
> 
> # 8 equal observations
> res <- capture(row_andersondarling(rep(1,8)))
> stopifnot(all.equal(res$warning, wrn))
> stopifnot(all(is.na(res$value[,nacolumns])))
> stopifnot(all.equal(res$value$obs, 8))
> 
> # 8 equal observations with some NA values
> res <- capture(row_andersondarling(c(rep(0.5,8),NA,NA)))
> stopifnot(all.equal(res$warning, wrn))
> stopifnot(all(is.na(res$value[,nacolumns])))
> stopifnot(all.equal(res$value$obs, 8))
> 
> 
> proc.time()
   user  system elapsed 
   0.10    0.09    0.18