R Under development (unstable) (2023-11-08 r85496 ucrt) -- "Unsuffered Consequences"
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> ###
> ### roots.R  +++ Test suite +++
> ###
> 
> 
> test.roots <- function(input, expected) {
+    output <- do.call(getFromNamespace("roots", "pracma"), input)
+    identical(output, expected)
+ }
> 
> roots.expected.empty <- matrix(0, nrow=0, ncol=0)
> roots.expected.singl <- matrix(0, nrow=0, ncol=0)
> roots.expected.bspl1 <-  c(0, 2, -2, 1, -1)  # Matlab: c(0, -2, -1, 1, 2)
>                          c(0, 2, -2, 1, -1)
[1]  0  2 -2  1 -1
> roots.expected.bspl2 <-  c(0.5, -0.2)
> roots.expected.bspl3 <- -c(0, 0, -1, 1)
> 
> test.roots(list(p=c()), roots.expected.empty)
[1] TRUE
> test.roots(list(p=c(0)), roots.expected.singl)
[1] TRUE
> #test.roots(list(p=c(1,0,-5,0,4,0)), roots.expected.bspl1)  # zapsmall
> test.roots(list(p=c(1,-0.3,-0.1)), roots.expected.bspl2)
[1] TRUE
> test.roots(list(p=c(1,0,-1,0,0)), roots.expected.bspl3)
[1] TRUE
> 
> proc.time()
   user  system elapsed 
   0.15    0.03    0.17