inst/unitTests/runit.Function.R

In Rcpp: Seamless R and C++ Integration

#!/usr/bin/r -t
# -*- mode: R; tab-width: 4; -*-
#
# Copyright (C) 2010 - 2013  Dirk Eddelbuettel and Romain Francois
#
# This file is part of Rcpp.
#
# Rcpp is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# Rcpp is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Rcpp.  If not, see <http://www.gnu.org/licenses/>.

.runThisTest <- Sys.getenv("RunAllRcppTests") == "yes"

if (.runThisTest) {

.setUp <- Rcpp:::unit_test_setup( "Function.cpp", "stats" )

test.Function <- function(){
    checkEquals( function_( rnorm ), rnorm, msg = "Function( CLOSXP )" )
    checkEquals( function_( is.function ), is.function, msg = "Pairlist( BUILTINSXP )" )
    
    checkException( function_(1:10), msg = "Function( INTSXP) " )
    checkException( function_(TRUE), msg = "Function( LGLSXP )" )
    checkException( function_(1.3), msg = "Function( REALSXP) " )
    checkException( function_(as.raw(1) ), msg = "Function( RAWSXP)" )
    checkException( function_(new.env()), msg = "Function not compatible with environment" )
}

test.Function.variadic <- function(){
    checkEquals( function_variadic( sort, sample(1:20) ), 20:1, msg = "calling function" )
    checkException( function_variadic(sort, sort), msg = "Function, R error -> exception" )
}

test.Function.env <- function(){
    checkEquals( function_env(rnorm), asNamespace("stats" ), msg = "Function::environment" )
	checkException( function_env(is.function),
		msg = "Function::environment( builtin) : exception" )
	checkException( function_env(`~`),
		msg = "Function::environment( special) : exception" )
}

test.Function.unary.call <- function(){
	checkEquals(
		function_unarycall( lapply( 1:10, function(n) seq(from=n, to = 0 ) ) ),
		2:11 ,
		msg = "unary_call(Function)" )
}

test.Function.binary.call <- function(){
	data <- lapply( 1:10, function(n) seq(from=n, to = 0 ) )
	res <- function_binarycall( data , rep(5L,10) )
	expected <- lapply( data, pmin, 5 )
	checkEquals( res, expected,
		msg = "binary_call(Function)" )
}

test.Function.namespace.env <- function() {
    exportedfunc <- function_namespace_env()
    checkEquals( stats:::.asSparse, exportedfunc, msg = "namespace_env(Function)" )
}

}