1
2##  Copyright (C) 2010 - 2019  Dirk Eddelbuettel and Romain Francois
3##
4##  This file is part of Rcpp.
5##
6##  Rcpp is free software: you can redistribute it and/or modify it
7##  under the terms of the GNU General Public License as published by
8##  the Free Software Foundation, either version 2 of the License, or
9##  (at your option) any later version.
10##
11##  Rcpp is distributed in the hope that it will be useful, but
12##  WITHOUT ANY WARRANTY; without even the implied warranty of
13##  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14##  GNU General Public License for more details.
15##
16##  You should have received a copy of the GNU General Public License
17##  along with Rcpp.  If not, see <http://www.gnu.org/licenses/>.
18
19if (Sys.getenv("RunAllRcppTests") != "yes") exit_file("Set 'RunAllRcppTests' to 'yes' to run.")
20
21Rcpp::sourceCpp("cpp/Function.cpp")
22
23#    test.Function <- function(){
24expect_equal( function_( rnorm ), rnorm, info = "Function( CLOSXP )" )
25expect_equal( function_( is.function ), is.function, info = "Pairlist( BUILTINSXP )" )
26
27expect_error( function_(1:10), info = "Function( INTSXP) " )
28expect_error( function_(TRUE), info = "Function( LGLSXP )" )
29expect_error( function_(1.3), info = "Function( REALSXP) " )
30expect_error( function_(as.raw(1) ), info = "Function( RAWSXP)" )
31expect_error( function_(new.env()), info = "Function not compatible with environment" )
32
33#    test.Function.variadic <- function(){
34expect_equal( function_variadic( sort, sample(1:20) ), 20:1, info = "calling function" )
35expect_error( function_variadic(sort, sort), info = "Function, R error -> exception" )
36
37#    test.Function.env <- function(){
38expect_equal( function_env(rnorm), asNamespace("stats" ), info = "Function::environment" )
39expect_error( function_env(is.function),
40             info = "Function::environment( builtin) : exception" )
41expect_error( function_env(`~`),
42             info = "Function::environment( special) : exception" )
43
44#    test.Function.unary.call <- function(){
45expect_equal(function_unarycall( lapply( 1:10, function(n) seq(from=n, to = 0 ) ) ),
46             2:11 , info = "unary_call(Function)" )
47
48#    test.Function.binary.call <- function(){
49data <- lapply( 1:10, function(n) seq(from=n, to = 0 ) )
50res <- function_binarycall( data , rep(5L,10) )
51expected <- lapply( data, pmin, 5 )
52expect_equal( res, expected, info = "binary_call(Function)" )
53
54#    test.Function.namespace.env <- function() {
55exportedfunc <- function_namespace_env()
56expect_equal( stats:::.asSparse, exportedfunc, info = "namespace_env(Function)" )
57
58#    test.Function.cons.env <- function() {
59parent_env <- new.env()
60parent_env$fun_parent <- rbinom
61child_env <- new.env(parent = parent_env)
62child_env$fun_child <- rnorm
63
64expect_equal(rnorm, function_cons_env("fun_child", child_env), info = "env-lookup constructor")
65expect_equal(rbinom, function_cons_env("fun_parent", child_env),
66             info = "env-lookup constructor: search function in parent environments")
67expect_error(function_cons_env("fun_child", parent_env),
68             info = "env-lookup constructor: fail when function not found")
69
70#    test.Function.cons.ns <- function() {
71expect_equal(Rcpp::sourceCpp, function_cons_ns("sourceCpp", "Rcpp"),
72             info = "namespace-lookup constructor")
73expect_error(function_cons_ns("sourceCpp", "Rcppp"),
74             info = "namespace-lookup constructor: fail when ns does not exist")
75expect_error(function_cons_ns("sourceCppp", "Rcpp"),
76             info = "namespace-lookup constructor: fail when function not found")
77
78#    test.Function.eval <- function() {
79expect_error(exec(stop))
80## should not throw exception
81exec(function() try(silent = TRUE, exec(stop)))
82
83## also check function is found in parent env
84