solidity/test/libsolutil/StringUtils.cpp

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/*
This file is part of solidity.
solidity is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
solidity is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with solidity. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* Unit tests for the StringUtils routines.
*/
#include <libsolutil/CommonData.h>
#include <libsolutil/FixedHash.h>
#include <libsolutil/StringUtils.h>
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#include <libsolidity/ast/Types.h> // for IntegerType
#include <test/Common.h>
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#include <boost/test/unit_test.hpp>
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using namespace std;
namespace solidity::util::test
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{
BOOST_AUTO_TEST_SUITE(StringUtils)
BOOST_AUTO_TEST_CASE(test_similarity)
{
BOOST_CHECK_EQUAL(stringWithinDistance("hello", "hello", 0), true);
BOOST_CHECK_EQUAL(stringWithinDistance("hello", "hello", 1), true);
BOOST_CHECK_EQUAL(stringWithinDistance("hello", "hellw", 1), true);
BOOST_CHECK_EQUAL(stringWithinDistance("hello", "helol", 1), true);
BOOST_CHECK_EQUAL(stringWithinDistance("hello", "helo", 1), true);
BOOST_CHECK_EQUAL(stringWithinDistance("hello", "helllo", 1), true);
BOOST_CHECK_EQUAL(stringWithinDistance("hello", "hlllo", 1), true);
BOOST_CHECK_EQUAL(stringWithinDistance("hello", "hllllo", 1), false);
BOOST_CHECK_EQUAL(stringWithinDistance("hello", "hllllo", 2), true);
BOOST_CHECK_EQUAL(stringWithinDistance("hello", "hlllo", 2), true);
BOOST_CHECK_EQUAL(stringWithinDistance("a", "", 2), false);
BOOST_CHECK_EQUAL(stringWithinDistance("abc", "ba", 2), false);
BOOST_CHECK_EQUAL(stringWithinDistance("abc", "abcdef", 2), false);
BOOST_CHECK_EQUAL(stringWithinDistance("abcd", "wxyz", 2), false);
BOOST_CHECK_EQUAL(stringWithinDistance("", "", 2), true);
BOOST_CHECK_EQUAL(stringWithinDistance("YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY", "YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYZ", 2, 6400), false);
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}
BOOST_AUTO_TEST_CASE(test_dldistance)
{
BOOST_CHECK_EQUAL(stringDistance("hello", "hellw"), 1);
BOOST_CHECK_EQUAL(stringDistance("hello", "helol"), 1);
BOOST_CHECK_EQUAL(stringDistance("hello", "helo"), 1);
BOOST_CHECK_EQUAL(stringDistance("hello", "helllo"), 1);
BOOST_CHECK_EQUAL(stringDistance("hello", "hlllo"), 1);
BOOST_CHECK_EQUAL(stringDistance("hello", "hllllo"), 2);
BOOST_CHECK_EQUAL(stringDistance("a", ""), 1);
BOOST_CHECK_EQUAL(stringDistance("abc", "ba"), 2);
BOOST_CHECK_EQUAL(stringDistance("abc", "abcdef"), 3);
BOOST_CHECK_EQUAL(stringDistance("abcd", "wxyz"), 4);
BOOST_CHECK_EQUAL(stringDistance("", ""), 0);
BOOST_CHECK_EQUAL(stringDistance("abcdefghijklmnopqrstuvwxyz", "abcabcabcabcabcabcabcabca"), 23);
}
BOOST_AUTO_TEST_CASE(test_alternatives_list)
{
vector<string> strings;
BOOST_CHECK_EQUAL(quotedAlternativesList(strings), "");
strings.push_back("a");
BOOST_CHECK_EQUAL(quotedAlternativesList(strings), "\"a\"");
strings.push_back("b");
BOOST_CHECK_EQUAL(quotedAlternativesList(strings), "\"a\" or \"b\"");
strings.push_back("c");
BOOST_CHECK_EQUAL(quotedAlternativesList(strings), "\"a\", \"b\" or \"c\"");
strings.push_back("d");
BOOST_CHECK_EQUAL(quotedAlternativesList(strings), "\"a\", \"b\", \"c\" or \"d\"");
}
BOOST_AUTO_TEST_CASE(test_human_readable_join)
{
BOOST_CHECK_EQUAL(joinHumanReadable(vector<string>({})), "");
BOOST_CHECK_EQUAL(joinHumanReadable(vector<string>({"a"})), "a");
BOOST_CHECK_EQUAL(joinHumanReadable(vector<string>({"a", "b"})), "a, b");
BOOST_CHECK_EQUAL(joinHumanReadable(vector<string>({"a", "b", "c"})), "a, b, c");
BOOST_CHECK_EQUAL(joinHumanReadable(vector<string>({}), "; "), "");
BOOST_CHECK_EQUAL(joinHumanReadable(vector<string>({"a"}), "; "), "a");
BOOST_CHECK_EQUAL(joinHumanReadable(vector<string>({"a", "b"}), "; "), "a; b");
BOOST_CHECK_EQUAL(joinHumanReadable(vector<string>({"a", "b", "c"}), "; "), "a; b; c");
BOOST_CHECK_EQUAL(joinHumanReadable(vector<string>({}), "; ", " or "), "");
BOOST_CHECK_EQUAL(joinHumanReadable(vector<string>({"a"}), "; ", " or "), "a");
BOOST_CHECK_EQUAL(joinHumanReadable(vector<string>({"a", "b"}), "; ", " or "), "a or b");
BOOST_CHECK_EQUAL(joinHumanReadable(vector<string>({"a", "b", "c"}), "; ", " or "), "a; b or c");
}
BOOST_AUTO_TEST_CASE(test_format_number_readable)
{
BOOST_CHECK_EQUAL(formatNumberReadable(u256(0x8000000)), "0x08 * 2**24");
BOOST_CHECK_EQUAL(formatNumberReadable(u256(0x80000000)), "0x80 * 2**24");
BOOST_CHECK_EQUAL(formatNumberReadable(u256(0x800000000)), "0x08 * 2**32");
BOOST_CHECK_EQUAL(formatNumberReadable(u256(0x8000000000)), "0x80 * 2**32");
BOOST_CHECK_EQUAL(formatNumberReadable(u256(0x80000000000)), "0x08 * 2**40");
BOOST_CHECK_EQUAL(formatNumberReadable(u256(0x7ffffff)), "0x08 * 2**24 - 1");
BOOST_CHECK_EQUAL(formatNumberReadable(u256(0x7fffffff)), "0x80 * 2**24 - 1");
BOOST_CHECK_EQUAL(formatNumberReadable(u256(0x7ffffffff)), "0x08 * 2**32 - 1");
BOOST_CHECK_EQUAL(formatNumberReadable(u256(0x7fffffffff)), "0x80 * 2**32 - 1");
BOOST_CHECK_EQUAL(formatNumberReadable(u256(0x7ffffffffff)), "0x08 * 2**40 - 1");
BOOST_CHECK_EQUAL(formatNumberReadable(u256(0x88000000)), "0x88 * 2**24");
BOOST_CHECK_EQUAL(formatNumberReadable(u256(0x8888888888000000)), "0x8888888888 * 2**24");
BOOST_CHECK_EQUAL(formatNumberReadable(u256(0x100000000)), "2**32");
BOOST_CHECK_EQUAL(formatNumberReadable(u256(0xFFFFffff)), "2**32 - 1");
u160 a = 0;
for (int i = 0; i < 20; i++)
{
a <<= 8;
a |= 0x55;
}
u256 b = 0;
for (int i = 0; i < 32; i++)
{
b <<= 8;
b |= 0x55;
}
u256 c = (u256)FixedHash<32>(
fromHex("0xabcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789")
);
u256 d = u256(0xAAAAaaaaAAAAaaaa) << 192 |
u256(0xFFFFffffFFFFffff) << 128 |
u256(0xFFFFffffFFFFffff) << 64 |
u256(0xFFFFffffFFFFffff);
BOOST_CHECK_EQUAL(formatNumberReadable(a, true), "0x5555...{+32 more}...5555");
BOOST_CHECK_EQUAL(formatNumberReadable(b, true), "0x5555...{+56 more}...5555");
BOOST_CHECK_EQUAL(formatNumberReadable(c, true), "0xABCD...{+56 more}...6789");
BOOST_CHECK_EQUAL(formatNumberReadable(d, true), "0xAAAAaaaaAAAAaaab * 2**192 - 1");
//for codegen/ExpressionCompiler
BOOST_CHECK_EQUAL(formatNumberReadable(u256(-1)), "2**256 - 1");
// for formal/SMTChecker
BOOST_CHECK_EQUAL(
formatNumberReadable(frontend::IntegerType(256).minValue()), "0");
BOOST_CHECK_EQUAL(
formatNumberReadable(frontend::IntegerType(256).maxValue()), "2**256 - 1");
}
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BOOST_AUTO_TEST_SUITE_END()
}