R version 4.4.0 RC (2024-04-16 r86468 ucrt) -- "Puppy Cup"
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Platform: x86_64-w64-mingw32/x64

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> attach(asNamespace("epigrowthfit"))
> library(tools)
> options(warn = 2L, error = if (interactive()) recover)
> 
> 
> ## isTrueFalse #########################################################
> 
> stopifnot(exprs = {
+ 	 isTrueFalse(TRUE)
+ 	 isTrueFalse(FALSE)
+ 	!isTrueFalse(NA)
+ 	!isTrueFalse(NULL)
+ 	!isTrueFalse(c(TRUE, TRUE))
+ 	!isTrueFalse(1)
+ })
> 
> 
> ## isInteger ###########################################################
> 
> stopifnot(exprs = {
+ 	 isInteger(TRUE)
+ 	 isInteger(FALSE)
+ 	!isInteger(NA)
+ 	 isInteger(1L)
+ 	 isInteger(-1)
+ 	 isInteger(-1.1)
+ 	!isInteger(0x1p+31)
+ 	!isInteger(NA_real_)
+ 	!isInteger(NaN)
+ 	!isInteger(Inf)
+ 	!isInteger(NULL)
+ 	!isInteger(c(1, 1))
+ 	!isInteger("1")
+ })
> 
> 
> ## isNumber ############################################################
> 
> stopifnot(exprs = {
+ 	!isNumber(TRUE)
+ 	 isNumber(1L)
+ 	 isNumber(-1)
+ 	 isNumber(-1.1)
+ 	 isNumber(0x1p+31)
+ 	!isNumber(NA_real_)
+ 	!isNumber(NaN)
+ 	!isNumber(Inf)
+ 	!isNumber(NULL)
+ 	!isNumber(c(1, 1))
+ 	!isNumber("1")
+ })
> 
> 
> ## isString ############################################################
> 
> stopifnot(exprs = {
+ 	 isString("1")
+ 	!isString(NA_character_)
+ 	!isString(NULL)
+ 	!isString(c("1", "1"))
+ 	!isString(1)
+ })
> 
> proc.time()
   user  system elapsed 
   1.10    0.18    1.28