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/***
* Bitwuzla: Satisfiability Modulo Theories (SMT) solver.
*
* Copyright (C) 2023 by the authors listed in the AUTHORS file at
* https://github.com/bitwuzla/bitwuzla/blob/main/AUTHORS
*
* This file is part of Bitwuzla under the MIT license. See COPYING for more
* information at https://github.com/bitwuzla/bitwuzla/blob/main/COPYING
*/
#include <iostream>
#include <sstream>
#include "parser/btor2/lexer.h"
#include "test/unit/test.h"
namespace bzla::test {
using namespace bzla::parser::btor2;
class TestBtor2Lexer : public ::testing::Test
{
protected:
inline static constexpr const char* s_out_prefix = "/tmp/bitwuzla_regress_";
void next_token(Lexer& lexer,
Token expected,
const std::string& expected_str = "")
{
Token lex_expected = Token::SYMBOL;
if (expected == Token::NUMBER_BIN || expected == Token::NUMBER_DEC
|| expected == Token::NUMBER_HEX)
{
lex_expected = expected;
}
Token token = lexer.next_token(lex_expected);
if (lexer.error())
{
std::cout << "error: " << lexer.error_msg() << std::endl;
}
assert(token == expected);
ASSERT_EQ(token, expected);
if (!expected_str.empty())
{
ASSERT_EQ(lexer.token(), expected_str);
}
}
void open_file(const std::stringstream& input, std::ifstream& infile)
{
std::string infile_name = s_out_prefix + std::string("lexer.btor2");
std::ofstream ofile(infile_name);
ofile << input.str();
ofile.close();
infile.open(infile_name, std::ifstream::in);
}
};
TEST_F(TestBtor2Lexer, comments)
{
std::stringstream input;
input << " " << std::endl
<< "; foo" << std::endl
<< "; bar" << std::endl
<< " ; foo" << std::endl
<< " " << std::endl
<< std::endl
<< "foobar";
std::ifstream infile;
open_file(input, infile);
Lexer lexer;
lexer.init(&infile);
next_token(lexer, Token::SYMBOL, "foobar");
infile.close();
}
TEST_F(TestBtor2Lexer, sort)
{
std::stringstream input;
input << "1 sort bitvec 32";
std::ifstream infile;
open_file(input, infile);
Lexer lexer;
lexer.init(&infile);
next_token(lexer, Token::NUMBER_DEC, "1");
next_token(lexer, Token::SORT, "sort");
next_token(lexer, Token::BITVEC, "bitvec");
next_token(lexer, Token::NUMBER_DEC, "32");
next_token(lexer, Token::ENDOFFILE);
infile.close();
}
TEST_F(TestBtor2Lexer, input)
{
std::stringstream input;
input << "4 input 1 x";
std::ifstream infile;
open_file(input, infile);
Lexer lexer;
lexer.init(&infile);
next_token(lexer, Token::NUMBER_DEC, "4");
next_token(lexer, Token::INPUT, "input");
next_token(lexer, Token::NUMBER_DEC, "1");
next_token(lexer, Token::SYMBOL, "x");
next_token(lexer, Token::ENDOFFILE);
infile.close();
}
TEST_F(TestBtor2Lexer, neg)
{
std::stringstream input;
input << "6 add 1 -2 -5";
std::ifstream infile;
open_file(input, infile);
Lexer lexer;
lexer.init(&infile);
next_token(lexer, Token::NUMBER_DEC, "6");
next_token(lexer, Token::ADD, "add");
next_token(lexer, Token::NUMBER_DEC, "1");
next_token(lexer, Token::NUMBER_DEC, "-2");
next_token(lexer, Token::NUMBER_DEC, "-5");
next_token(lexer, Token::ENDOFFILE);
infile.close();
}
TEST_F(TestBtor2Lexer, formula)
{
std::stringstream input;
input << "1 sort bitvec 32" << std::endl;
input << "2 const 1 11111111111111111111111111111110 ; asdf" << std::endl;
input << "; foo" << std::endl;
input << "3 const 1 00000000000000000000000000000010" << std::endl;
input << "4 input 1 x" << std::endl;
input << "5 mul 1 3 4" << std::endl;
input << "6 add 1 -2 -5" << std::endl;
input << "7 mul 1 2 4" << std::endl;
input << "8 sort bitvec 1" << std::endl;
input << "9 eq 8 6 7" << std::endl;
input << "10 constraint -9";
std::ifstream infile;
open_file(input, infile);
Lexer lexer;
lexer.init(&infile);
next_token(lexer, Token::NUMBER_DEC, "1");
next_token(lexer, Token::SORT, "sort");
next_token(lexer, Token::BITVEC, "bitvec");
next_token(lexer, Token::NUMBER_DEC, "32");
next_token(lexer, Token::NUMBER_DEC, "2");
next_token(lexer, Token::CONST, "const");
next_token(lexer, Token::NUMBER_DEC, "1");
next_token(lexer, Token::NUMBER_BIN, "11111111111111111111111111111110");
next_token(lexer, Token::NUMBER_DEC, "3");
next_token(lexer, Token::CONST, "const");
next_token(lexer, Token::NUMBER_DEC, "1");
next_token(lexer, Token::NUMBER_BIN, "00000000000000000000000000000010");
next_token(lexer, Token::NUMBER_DEC, "4");
next_token(lexer, Token::INPUT, "input");
next_token(lexer, Token::NUMBER_DEC, "1");
next_token(lexer, Token::SYMBOL, "x");
next_token(lexer, Token::NUMBER_DEC, "5");
next_token(lexer, Token::MUL, "mul");
next_token(lexer, Token::NUMBER_DEC, "1");
next_token(lexer, Token::NUMBER_DEC, "3");
next_token(lexer, Token::NUMBER_DEC, "4");
next_token(lexer, Token::NUMBER_DEC, "6");
next_token(lexer, Token::ADD, "add");
next_token(lexer, Token::NUMBER_DEC, "1");
next_token(lexer, Token::NUMBER_DEC, "-2");
next_token(lexer, Token::NUMBER_DEC, "-5");
next_token(lexer, Token::NUMBER_DEC, "7");
next_token(lexer, Token::MUL, "mul");
next_token(lexer, Token::NUMBER_DEC, "1");
next_token(lexer, Token::NUMBER_DEC, "2");
next_token(lexer, Token::NUMBER_DEC, "4");
next_token(lexer, Token::NUMBER_DEC, "8");
next_token(lexer, Token::SORT, "sort");
next_token(lexer, Token::BITVEC, "bitvec");
next_token(lexer, Token::NUMBER_DEC, "1");
next_token(lexer, Token::NUMBER_DEC, "9");
next_token(lexer, Token::EQ, "eq");
next_token(lexer, Token::NUMBER_DEC, "8");
next_token(lexer, Token::NUMBER_DEC, "6");
next_token(lexer, Token::NUMBER_DEC, "7");
next_token(lexer, Token::NUMBER_DEC, "10");
next_token(lexer, Token::CONSTRAINT, "constraint");
next_token(lexer, Token::NUMBER_DEC, "-9");
next_token(lexer, Token::ENDOFFILE);
infile.close();
}
} // namespace bzla::test
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