mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
369 lines
14 KiB
C++
369 lines
14 KiB
C++
/*
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This file is part of solidity.
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solidity 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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solidity 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 solidity. 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/parsing/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.currentToken(), 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.currentToken(), 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.currentLiteral(), "765");
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BOOST_CHECK_EQUAL(scanner.next(), Token::StringLiteral);
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BOOST_CHECK_EQUAL(scanner.currentLiteral(), "string1");
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BOOST_CHECK_EQUAL(scanner.next(), Token::Comma);
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BOOST_CHECK_EQUAL(scanner.next(), Token::StringLiteral);
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BOOST_CHECK_EQUAL(scanner.currentLiteral(), "string2");
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BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
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BOOST_CHECK_EQUAL(scanner.currentLiteral(), "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.currentToken(), Token::LBrace);
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BOOST_CHECK_EQUAL(scanner.next(), Token::StringLiteral);
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BOOST_CHECK_EQUAL(scanner.currentLiteral(), "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.currentToken(), Token::LBrace);
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BOOST_CHECK_EQUAL(scanner.next(), Token::StringLiteral);
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BOOST_CHECK_EQUAL(scanner.currentLiteral(), 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.currentToken(), Token::Identifier);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
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BOOST_CHECK_EQUAL(scanner.currentLiteral(), "");
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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.currentToken(), 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.currentLiteral(), "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.currentToken(), 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::Sub);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Number);
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BOOST_CHECK_EQUAL(scanner.currentLiteral(), ".2");
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BOOST_CHECK_EQUAL(scanner.next(), Token::Add);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Sub);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Number);
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BOOST_CHECK_EQUAL(scanner.currentLiteral(), "0x78");
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BOOST_CHECK_EQUAL(scanner.next(), Token::Add);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Sub);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Number);
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BOOST_CHECK_EQUAL(scanner.currentLiteral(), "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.currentLiteral(), "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.currentToken(), Token::Identifier);
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BOOST_CHECK_EQUAL(scanner.currentLocation().start, 0);
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BOOST_CHECK_EQUAL(scanner.currentLocation().end, 19);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
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BOOST_CHECK_EQUAL(scanner.currentLocation().start, 20);
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BOOST_CHECK_EQUAL(scanner.currentLocation().end, 23);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Semicolon);
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BOOST_CHECK_EQUAL(scanner.currentLocation().start, 24);
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BOOST_CHECK_EQUAL(scanner.currentLocation().end, 25);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Sub);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Number);
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BOOST_CHECK_EQUAL(scanner.currentLocation().start, 27);
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BOOST_CHECK_EQUAL(scanner.currentLocation().end, 32);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
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BOOST_CHECK_EQUAL(scanner.currentLocation().start, 45);
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BOOST_CHECK_EQUAL(scanner.currentLocation().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.currentToken(), Token::LessThanOrEqual);
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BOOST_CHECK_EQUAL(scanner.next(), Token::LessThan);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Add);
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BOOST_CHECK_EQUAL(scanner.next(), Token::AssignAdd);
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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_CASE(documentation_comments_parsed_begin)
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{
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Scanner scanner(CharStream("/// Send $(value / 1000) chocolates to the user"));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::EOS);
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BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "Send $(value / 1000) chocolates to the user");
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}
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BOOST_AUTO_TEST_CASE(multiline_documentation_comments_parsed_begin)
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{
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Scanner scanner(CharStream("/** Send $(value / 1000) chocolates to the user*/"));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::EOS);
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BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "Send $(value / 1000) chocolates to the user");
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}
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BOOST_AUTO_TEST_CASE(documentation_comments_parsed)
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{
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Scanner scanner(CharStream("some other tokens /// Send $(value / 1000) chocolates to the user"));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Identifier);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
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BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
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BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "Send $(value / 1000) chocolates to the user");
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}
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BOOST_AUTO_TEST_CASE(multiline_documentation_comments_parsed)
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{
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Scanner scanner(CharStream("some other tokens /**\n"
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"* Send $(value / 1000) chocolates to the user\n"
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"*/"));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Identifier);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
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BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
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BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "Send $(value / 1000) chocolates to the user");
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}
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BOOST_AUTO_TEST_CASE(multiline_documentation_no_stars)
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{
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Scanner scanner(CharStream("some other tokens /**\n"
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" Send $(value / 1000) chocolates to the user\n"
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"*/"));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Identifier);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
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BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
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BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "Send $(value / 1000) chocolates to the user");
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}
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BOOST_AUTO_TEST_CASE(multiline_documentation_whitespace_hell)
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{
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Scanner scanner(CharStream("some other tokens /** \t \r \n"
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"\t \r * Send $(value / 1000) chocolates to the user\n"
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"*/"));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Identifier);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
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BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
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BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "Send $(value / 1000) chocolates to the user");
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}
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BOOST_AUTO_TEST_CASE(comment_before_eos)
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{
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Scanner scanner(CharStream("//"));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::EOS);
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BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "");
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}
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BOOST_AUTO_TEST_CASE(documentation_comment_before_eos)
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{
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Scanner scanner(CharStream("///"));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::EOS);
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BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "");
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}
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BOOST_AUTO_TEST_CASE(empty_multiline_comment)
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{
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Scanner scanner(CharStream("/**/"));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::EOS);
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BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "");
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}
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BOOST_AUTO_TEST_CASE(empty_multiline_documentation_comment_before_eos)
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{
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Scanner scanner(CharStream("/***/"));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::EOS);
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BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "");
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}
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BOOST_AUTO_TEST_CASE(comments_mixed_in_sequence)
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{
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Scanner scanner(CharStream("hello_world ///documentation comment \n"
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"//simple comment \n"
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"<<"));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Identifier);
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BOOST_CHECK_EQUAL(scanner.next(), Token::SHL);
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BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "documentation comment ");
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}
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BOOST_AUTO_TEST_CASE(ether_subdenominations)
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{
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Scanner scanner(CharStream("wei szabo finney ether"));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::SubWei);
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BOOST_CHECK_EQUAL(scanner.next(), Token::SubSzabo);
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BOOST_CHECK_EQUAL(scanner.next(), Token::SubFinney);
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BOOST_CHECK_EQUAL(scanner.next(), Token::SubEther);
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}
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BOOST_AUTO_TEST_CASE(time_subdenominations)
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{
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Scanner scanner(CharStream("seconds minutes hours days weeks years"));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::SubSecond);
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BOOST_CHECK_EQUAL(scanner.next(), Token::SubMinute);
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BOOST_CHECK_EQUAL(scanner.next(), Token::SubHour);
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BOOST_CHECK_EQUAL(scanner.next(), Token::SubDay);
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BOOST_CHECK_EQUAL(scanner.next(), Token::SubWeek);
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BOOST_CHECK_EQUAL(scanner.next(), Token::SubYear);
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}
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BOOST_AUTO_TEST_CASE(empty_comment)
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{
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Scanner scanner(CharStream("//\ncontract{}"));
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BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "");
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Contract);
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BOOST_CHECK_EQUAL(scanner.next(), Token::LBrace);
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BOOST_CHECK_EQUAL(scanner.next(), Token::RBrace);
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}
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BOOST_AUTO_TEST_CASE(valid_unicode_string_escape)
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{
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Scanner scanner(CharStream("{ \"\\u00DAnicode\""));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
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BOOST_CHECK_EQUAL(scanner.next(), Token::StringLiteral);
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BOOST_CHECK_EQUAL(scanner.currentLiteral(), std::string("\xC3\x9Anicode", 8));
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}
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BOOST_AUTO_TEST_CASE(valid_unicode_string_escape_7f)
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{
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Scanner scanner(CharStream("{ \"\\u007Fnicode\""));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
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BOOST_CHECK_EQUAL(scanner.next(), Token::StringLiteral);
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BOOST_CHECK_EQUAL(scanner.currentLiteral(), std::string("\x7Fnicode", 7));
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}
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BOOST_AUTO_TEST_CASE(valid_unicode_string_escape_7ff)
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{
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Scanner scanner(CharStream("{ \"\\u07FFnicode\""));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
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BOOST_CHECK_EQUAL(scanner.next(), Token::StringLiteral);
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BOOST_CHECK_EQUAL(scanner.currentLiteral(), std::string("\xDF\xBFnicode", 8));
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}
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BOOST_AUTO_TEST_CASE(valid_unicode_string_escape_ffff)
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{
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Scanner scanner(CharStream("{ \"\\uFFFFnicode\""));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
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BOOST_CHECK_EQUAL(scanner.next(), Token::StringLiteral);
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BOOST_CHECK_EQUAL(scanner.currentLiteral(), std::string("\xEF\xBF\xBFnicode", 9));
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}
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BOOST_AUTO_TEST_CASE(invalid_short_unicode_string_escape)
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{
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Scanner scanner(CharStream("{ \"\\uFFnicode\""));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
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}
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BOOST_AUTO_TEST_CASE(valid_hex_literal)
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{
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Scanner scanner(CharStream("{ hex\"00112233FF\""));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
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BOOST_CHECK_EQUAL(scanner.next(), Token::StringLiteral);
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BOOST_CHECK_EQUAL(scanner.currentLiteral(), std::string("\x00\x11\x22\x33\xFF", 5));
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}
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BOOST_AUTO_TEST_CASE(invalid_short_hex_literal)
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{
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Scanner scanner(CharStream("{ hex\"00112233F\""));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
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}
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BOOST_AUTO_TEST_CASE(invalid_hex_literal_with_space)
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{
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Scanner scanner(CharStream("{ hex\"00112233FF \""));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
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}
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BOOST_AUTO_TEST_CASE(invalid_hex_literal_with_wrong_quotes)
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{
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Scanner scanner(CharStream("{ hex\"00112233FF'"));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
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}
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BOOST_AUTO_TEST_CASE(invalid_hex_literal_nonhex_string)
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{
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Scanner scanner(CharStream("{ hex\"hello\""));
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BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
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BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
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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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