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161 lines
6.1 KiB
161 lines
6.1 KiB
/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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cpp-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @author Christian <c@ethdev.com>
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* @date 2014
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* Unit tests for the solidity scanner.
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*/
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#include <libsolidity/Scanner.h>
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#include <boost/test/unit_test.hpp>
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namespace dev
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{
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namespace solidity
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{
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namespace test
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{
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BOOST_AUTO_TEST_SUITE(SolidityScanner)
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BOOST_AUTO_TEST_CASE(test_empty)
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{
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Scanner scanner(CharStream(""));
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BOOST_CHECK_EQUAL(scanner.getCurrentToken(), Token::EOS);
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}
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BOOST_AUTO_TEST_CASE(smoke_test)
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{
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Scanner scanner(CharStream("function break;765 \t \"string1\",'string2'\nidentifier1"));
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BOOST_CHECK_EQUAL(scanner.getCurrentToken(), Token::FUNCTION);
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BOOST_CHECK_EQUAL(scanner.next(), Token::BREAK);
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BOOST_CHECK_EQUAL(scanner.next(), Token::SEMICOLON);
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BOOST_CHECK_EQUAL(scanner.next(), Token::NUMBER);
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BOOST_CHECK_EQUAL(scanner.getCurrentLiteral(), "765");
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BOOST_CHECK_EQUAL(scanner.next(), Token::STRING_LITERAL);
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BOOST_CHECK_EQUAL(scanner.getCurrentLiteral(), "string1");
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BOOST_CHECK_EQUAL(scanner.next(), Token::COMMA);
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BOOST_CHECK_EQUAL(scanner.next(), Token::STRING_LITERAL);
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BOOST_CHECK_EQUAL(scanner.getCurrentLiteral(), "string2");
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BOOST_CHECK_EQUAL(scanner.next(), Token::IDENTIFIER);
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BOOST_CHECK_EQUAL(scanner.getCurrentLiteral(), "identifier1");
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BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
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}
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BOOST_AUTO_TEST_CASE(string_escapes)
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{
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Scanner scanner(CharStream(" { \"a\\x61\""));
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BOOST_CHECK_EQUAL(scanner.getCurrentToken(), Token::LBRACE);
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BOOST_CHECK_EQUAL(scanner.next(), Token::STRING_LITERAL);
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BOOST_CHECK_EQUAL(scanner.getCurrentLiteral(), "aa");
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}
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BOOST_AUTO_TEST_CASE(string_escapes_with_zero)
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{
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Scanner scanner(CharStream(" { \"a\\x61\\x00abc\""));
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BOOST_CHECK_EQUAL(scanner.getCurrentToken(), Token::LBRACE);
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BOOST_CHECK_EQUAL(scanner.next(), Token::STRING_LITERAL);
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BOOST_CHECK_EQUAL(scanner.getCurrentLiteral(), std::string("aa\0abc", 6));
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}
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BOOST_AUTO_TEST_CASE(string_escape_illegal)
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{
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Scanner scanner(CharStream(" bla \"\\x6rf\" (illegalescape)"));
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BOOST_CHECK_EQUAL(scanner.getCurrentToken(), Token::IDENTIFIER);
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BOOST_CHECK_EQUAL(scanner.next(), Token::ILLEGAL);
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BOOST_CHECK_EQUAL(scanner.getCurrentLiteral(), "");
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// TODO recovery from illegal tokens should be improved
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BOOST_CHECK_EQUAL(scanner.next(), Token::ILLEGAL);
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BOOST_CHECK_EQUAL(scanner.next(), Token::IDENTIFIER);
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BOOST_CHECK_EQUAL(scanner.next(), Token::ILLEGAL);
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BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
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}
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BOOST_AUTO_TEST_CASE(hex_numbers)
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{
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Scanner scanner(CharStream("var x = 0x765432536763762734623472346;"));
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BOOST_CHECK_EQUAL(scanner.getCurrentToken(), Token::VAR);
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BOOST_CHECK_EQUAL(scanner.next(), Token::IDENTIFIER);
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BOOST_CHECK_EQUAL(scanner.next(), Token::ASSIGN);
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BOOST_CHECK_EQUAL(scanner.next(), Token::NUMBER);
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BOOST_CHECK_EQUAL(scanner.getCurrentLiteral(), "0x765432536763762734623472346");
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BOOST_CHECK_EQUAL(scanner.next(), Token::SEMICOLON);
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BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
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}
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BOOST_AUTO_TEST_CASE(negative_numbers)
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{
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Scanner scanner(CharStream("var x = -.2 + -0x78 + -7.3 + 8.9;"));
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BOOST_CHECK_EQUAL(scanner.getCurrentToken(), Token::VAR);
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BOOST_CHECK_EQUAL(scanner.next(), Token::IDENTIFIER);
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BOOST_CHECK_EQUAL(scanner.next(), Token::ASSIGN);
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BOOST_CHECK_EQUAL(scanner.next(), Token::NUMBER);
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BOOST_CHECK_EQUAL(scanner.getCurrentLiteral(), "-.2");
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BOOST_CHECK_EQUAL(scanner.next(), Token::ADD);
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BOOST_CHECK_EQUAL(scanner.next(), Token::NUMBER);
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BOOST_CHECK_EQUAL(scanner.getCurrentLiteral(), "-0x78");
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BOOST_CHECK_EQUAL(scanner.next(), Token::ADD);
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BOOST_CHECK_EQUAL(scanner.next(), Token::NUMBER);
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BOOST_CHECK_EQUAL(scanner.getCurrentLiteral(), "-7.3");
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BOOST_CHECK_EQUAL(scanner.next(), Token::ADD);
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BOOST_CHECK_EQUAL(scanner.next(), Token::NUMBER);
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BOOST_CHECK_EQUAL(scanner.getCurrentLiteral(), "8.9");
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BOOST_CHECK_EQUAL(scanner.next(), Token::SEMICOLON);
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BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
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}
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BOOST_AUTO_TEST_CASE(locations)
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{
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Scanner scanner(CharStream("function_identifier has ; -0x743/*comment*/\n ident //comment"));
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BOOST_CHECK_EQUAL(scanner.getCurrentToken(), Token::IDENTIFIER);
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BOOST_CHECK_EQUAL(scanner.getCurrentLocation().start, 0);
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BOOST_CHECK_EQUAL(scanner.getCurrentLocation().end, 19);
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BOOST_CHECK_EQUAL(scanner.next(), Token::IDENTIFIER);
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BOOST_CHECK_EQUAL(scanner.getCurrentLocation().start, 20);
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BOOST_CHECK_EQUAL(scanner.getCurrentLocation().end, 23);
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BOOST_CHECK_EQUAL(scanner.next(), Token::SEMICOLON);
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BOOST_CHECK_EQUAL(scanner.getCurrentLocation().start, 24);
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BOOST_CHECK_EQUAL(scanner.getCurrentLocation().end, 25);
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BOOST_CHECK_EQUAL(scanner.next(), Token::NUMBER);
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BOOST_CHECK_EQUAL(scanner.getCurrentLocation().start, 26);
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BOOST_CHECK_EQUAL(scanner.getCurrentLocation().end, 32);
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BOOST_CHECK_EQUAL(scanner.next(), Token::IDENTIFIER);
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BOOST_CHECK_EQUAL(scanner.getCurrentLocation().start, 45);
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BOOST_CHECK_EQUAL(scanner.getCurrentLocation().end, 50);
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BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
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}
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BOOST_AUTO_TEST_CASE(ambiguities)
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{
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// test scanning of some operators which need look-ahead
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Scanner scanner(CharStream("<=""<""+ +=a++ =>""<<"));
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BOOST_CHECK_EQUAL(scanner.getCurrentToken(), Token::LTE);
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BOOST_CHECK_EQUAL(scanner.next(), Token::LT);
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BOOST_CHECK_EQUAL(scanner.next(), Token::ADD);
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BOOST_CHECK_EQUAL(scanner.next(), Token::ASSIGN_ADD);
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BOOST_CHECK_EQUAL(scanner.next(), Token::IDENTIFIER);
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BOOST_CHECK_EQUAL(scanner.next(), Token::INC);
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BOOST_CHECK_EQUAL(scanner.next(), Token::ARROW);
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BOOST_CHECK_EQUAL(scanner.next(), Token::SHL);
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}
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BOOST_AUTO_TEST_SUITE_END()
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}
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}
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} // end namespaces
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