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#### Produce an R test script -*- R -*-
ls.base <- ls(pos=length(search()))#- something more elegant ?
base.is.f <- sapply(ls.base, function(x) is.function(get(x)))
bi <- ls.base[base.is.f]
iroot <- substring(is.bi <- bi[substring(bi,1,3) == "is."],4)
aroot <- substring(as.bi <- bi[substring(bi,1,3) == "as."],4)
(root <- intersect(iroot,aroot))# both an is.foo and as.foo function exist
ex.list <- expression(integer(0), NULL, list(), 1:1, pi, "1.3", list(a=1),
as.data.frame(character(0)))
##--- producing the real R script:
sink("isas-tests.R")
cat(".proctime00 <- proc.time()\n",
"isall.equal <- function(x,y)",
"typeof(x) == typeof(y) && is.logical(r <- all.equal(x,y, tol=0)) && r \n",
sep="\n")
cat("options(error = expression(NULL))",
"# don't stop on error in batch\n##~~~~~~~~~~~~~~\n")
for(x in ex.list) {
cat("\n###--------\n x <- ", deparse(x), "\n", sep="")
## is.foo(as.foo( bar )) #>> TRUE :
for(r in root) cat("is.",r,"(as.",r,"( x ))\n", sep="")
cat("\n")
## if(is.foo(bar)) bar ``=='' as.foo(bar) :
for(r in root)
cat("if(is.",r,"(x)) { ",
"cat('IS: ');all.equal(x, as.",r,"( x ), tol=0)\n",
"} else !isall.equal(x, as.",r,"( x ))\n", sep="")
## f <- as.foo(x) ==> as.foo(f) == f :
for(r in aroot)
cat("f <- as.",r,"( x ); all.equal(f, as.",r,"( f ), tol=0)\n", sep="")
}
cat("cat('Time elapsed: ', proc.time() - .proctime00,'\\n')\n")
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