inst/unitTests/runit.client.package.R

In Rcpp: Seamless R and C++ Integration

#!/usr/bin/r -t
#
# Copyright (C) 2010 - 2012  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/>.

## This now (Dec 2011) appears to fail on Windows
.onWindows <- .Platform$OS.type == "windows"

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

.client.package <- function( pkg = "RcppTestA" ){
    td <- tempfile()
    cwd <- getwd()
    dir.create( td )
    file.copy( system.file( "unitTests", pkg, package = "Rcpp" ) , td, recursive = TRUE)
    setwd( td )
    on.exit( { setwd( cwd) ; unlink( td, recursive = TRUE ) } )
    R <- shQuote( file.path( R.home( component = "bin" ), "R" ))
    cmd <- paste( R , "CMD build", pkg )
    system( cmd )
    dir.create( "templib" )
    install.packages( paste( pkg, "_1.0.tar.gz", sep = "" ), "templib", repos = NULL, type = "source" )
    require( pkg, "templib", character.only = TRUE )

    hello_world <- get( "rcpp_hello_world", asNamespace( pkg ) )
    checkEquals( hello_world(), list( c("foo", "bar"), c(0.0, 1.0) ), msg = "code from client package" )

    checkException( .Call("hello_world_ex", PACKAGE = pkg ), msg = "exception in client package" )
}

if ( .runThisTest && ! .onWindows ) {
    test.client.packageA <- function(){
        .client.package( "RcppTestA" )
    }
}