R Under development (unstable) (2023-11-08 r85496 ucrt) -- "Unsuffered Consequences"
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> ###
> ### ISPRIME.R  +++ Test suite +++
> ###
> 
> 
> test.isprime <- function(input, expected) {
+     output <- do.call(getFromNamespace("isprime", "pracma"), input)
+     identical(output, expected)
+ }
> 
> isprime.expected.n1 <- 0
> isprime.expected.n2 <- 1
> isprime.expected.n100  <- 
+     matrix(c(0, 1, 1, 0, 1, 0, 1, 0, 0, 0,
+              1, 0, 1, 0, 0, 0, 1, 0, 1, 0,
+              0, 0, 1, 0, 0, 0, 0, 0, 1, 0,
+              1, 0, 0, 0, 0, 0, 1, 0, 0, 0,
+              1, 0, 1, 0, 0, 0, 1, 0, 0, 0,
+              0, 0, 1, 0, 0, 0, 0, 0, 1, 0,
+              1, 0, 0, 0, 0, 0, 1, 0, 0, 0,
+              1, 0, 1, 0, 0, 0, 0, 0, 1, 0,
+              0, 0, 1, 0, 0, 0, 0, 0, 1, 0,
+              0, 0, 0, 0, 0, 0, 1, 0, 0, 0 ),
+            nrow=10, ncol=10, byrow=TRUE)
> 
> test.isprime(list(x=1), isprime.expected.n1)
[1] TRUE
> test.isprime(list(x=2), isprime.expected.n2)
[1] TRUE
> test.isprime(list(x=matrix(1:100, 10, 10, byrow=TRUE)),
+     isprime.expected.n100)
[1] TRUE
> 
> proc.time()
   user  system elapsed 
   0.14    0.04    0.17