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// Author(s): Wieger Wesselink
// Copyright: see the accompanying file COPYING or copy at
// https://svn.win.tue.nl/trac/MCRL2/browser/trunk/COPYING
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
/// \file rewriter_test.cpp
/// \brief Add your file description here.
#include <cstdlib>
#include <string>
#include <algorithm>
#include <boost/test/minimal.hpp>
#include "mcrl2/data/rewriter.h"
#include "mcrl2/data/detail/parse_substitution.h"
#include "mcrl2/data/detail/data_functional.h"
#include "mcrl2/data/substitutions/mutable_map_substitution.h"
#include "mcrl2/lps/specification.h"
#include "mcrl2/lps/rewrite.h"
#include "mcrl2/lps/parse.h"
#include "mcrl2/lps/detail/specification_property_map.h"
using namespace std;
using namespace mcrl2;
using namespace mcrl2::data;
using namespace mcrl2::data::detail;
using namespace mcrl2::lps;
using namespace mcrl2::lps::detail;
const std::string SPECIFICATION1 =
"sort Natural; \n"
" \n"
"cons _0: Natural; \n"
" S: Natural -> Natural; \n"
" \n"
"map eq: Natural # Natural -> Bool; \n"
" less: Natural # Natural -> Bool; \n"
" plus: Natural # Natural -> Natural; \n"
" _1, _2, _3, _4, _5, _6, _7, _8, _9: Natural; \n"
" P: Natural -> Natural; \n"
" even: Natural -> Bool; \n"
" \n"
"var n, m: Natural; \n"
" \n"
"eqn eq(n, n) = true; \n"
" eq(S(n), _0) = false; \n"
" eq(_0, S(m)) = false; \n"
" eq(S(n), S(m)) = eq(n, m); \n"
" \n"
" less(n, n) = false; \n"
" less(n, _0) = false; \n"
" less(_0, S(m)) = true; \n"
" less(S(n), S(m)) = less(n, m); \n"
" \n"
" plus(_0, n) = n; \n"
" plus(n, _0) = n; \n"
" plus(S(n), m) = S(plus(n, m)); \n"
" plus(n, S(m)) = S(plus(n, m)); \n"
" \n"
" even(_0) = true; \n"
" even(S(n)) = !(even(n)); \n"
" \n"
" P(S(n)) = n; \n"
" \n"
" _1 = S(_0); \n"
" _2 = S(_1); \n"
" _3 = S(_2); \n"
" _4 = S(_3); \n"
" _5 = S(_4); \n"
" _6 = S(_5); \n"
" _7 = S(_6); \n"
" _8 = S(_7); \n"
" _9 = S(_8); \n"
" \n"
"act a: Natural; \n"
" \n"
"proc P(n: Natural) = sum m: Natural. a(m). P(m); \n"
" \n"
"init P(_0); \n"
;
void test1()
{
specification spec = parse_linear_process_specification(SPECIFICATION1);
rewriter r(spec.data());
data_expression n1 = find_mapping(spec.data(), "_1");
data_expression n2 = find_mapping(spec.data(), "_2");
data_expression n3 = find_mapping(spec.data(), "_3");
data_expression n4 = find_mapping(spec.data(), "_4");
data_expression n5 = find_mapping(spec.data(), "_5");
data_expression n6 = find_mapping(spec.data(), "_6");
data_expression n7 = find_mapping(spec.data(), "_7");
data_expression n8 = find_mapping(spec.data(), "_8");
data_expression n9 = find_mapping(spec.data(), "_9");
data_expression plus = find_mapping(spec.data(), "plus");
BOOST_CHECK(r(plus(n4, n5)) == r(plus(n2, n7)));
specification spec1 = spec;
lps::rewrite(spec1, r);
lps::detail::specification_property_map info(spec);
lps::detail::specification_property_map info1(spec1);
BOOST_CHECK(info.to_string() == info1.to_string());
// test destructor
rewriter r1 = r;
}
const std::string SPECIFICATION2=
"act c:Pos#Nat; \n"
"proc P(a:Pos,b:Nat)=c(a,0).P(a+1,b+1+2); \n"
"init P(1+1,2+2); \n";
void test2()
{
specification spec = parse_linear_process_specification(SPECIFICATION2);
rewriter r(spec.data());
specification spec1 = spec;
lps::rewrite(spec1, r);
specification spec2 = spec1;
lps::rewrite(spec2, r);
lps::detail::specification_property_map info1(spec1);
lps::detail::specification_property_map info2(spec2);
BOOST_CHECK(info1.to_string() == info2.to_string());
BOOST_CHECK(spec1.process().summand_count() == 1);
}
const std::string SPECIFICATION3 =
"act c:Pos#Nat; \n"
"proc P(a:Pos,b:Nat)=tau.P(a+1,b+1+2)+ \n"
" tau.P(a+1,pred(a))+ \n"
" c(a,0).P(a,b); \n"
"init P(1+1,0); \n";
void test3()
{
specification spec = parse_linear_process_specification(SPECIFICATION3);
rewriter r(spec.data());
specification spec1 = spec;
lps::rewrite(spec1, r);
specification spec2 = spec1;
lps::rewrite(spec2, r);
lps::detail::specification_property_map info1(spec1);
lps::detail::specification_property_map info2(spec2);
BOOST_CHECK(info1.to_string() == info2.to_string());
BOOST_CHECK(spec1.process().summand_count() == 3);
}
// N.B. This test doesn't work due to the different representations of numbers
// that are used before and after rewriting :-(
// Checks if rewriting the specification src with the substitutions sigma
// results in the specification dest.
void test_lps_rewriter(std::string src_text, std::string dest_text, std::string sigma_text)
{
lps::specification src = parse_linear_process_specification(src_text);
lps::specification dest = parse_linear_process_specification(dest_text);
// rewrite the specification src
data::rewriter R(src.data());
data::mutable_map_substitution<> sigma;
data::detail::parse_substitution(sigma_text, sigma, src.data());
lps::rewrite(src, R, sigma);
if (src != dest)
{
std::cerr << "--- test failed ---" << std::endl;
std::cerr << lps::pp(src) << std::endl;
std::cerr << "-------------------" << std::endl;
std::cerr << lps::pp(dest) << std::endl;
}
BOOST_CHECK(src == dest);
}
void test_lps_rewriter()
{
std::string src =
"act c:Pos#Nat; \n"
"proc P(a:Pos,b:Nat)=c(a,0).P(a+1,b+1+2); \n"
"init P(1+1,2+2); \n";
std::string dest =
"act c:Pos#Nat; \n"
"proc P(a:Pos,b:Nat)=c(a,0).P(a+1,b+3); \n"
"init P(2,4); \n";
test_lps_rewriter(src, dest, "");
}
int test_main(int argc, char* argv[])
{
test1();
test2();
test3();
//test_lps_rewriter();
return 0;
}
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