solidity/test/libsolidity/SMTChecker.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 SMT checker.
*/
#include <test/libsolidity/AnalysisFramework.h>
#include <test/Common.h>
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#include <boost/test/unit_test.hpp>
#include <string>
using namespace std;
using namespace solidity::langutil;
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namespace solidity::frontend::test
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{
class SMTCheckerFramework: public AnalysisFramework
{
protected:
virtual std::pair<SourceUnit const*, ErrorList>
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parseAnalyseAndReturnError(
std::string const& _source,
bool _reportWarnings = false,
bool _insertVersionPragma = true,
bool _allowMultipleErrors = false,
bool _allowRecoveryErrors = false
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)
{
return AnalysisFramework::parseAnalyseAndReturnError(
"pragma experimental SMTChecker;\n" + _source,
_reportWarnings,
_insertVersionPragma,
_allowMultipleErrors,
_allowRecoveryErrors
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);
}
};
BOOST_FIXTURE_TEST_SUITE(SMTChecker, SMTCheckerFramework)
BOOST_AUTO_TEST_CASE(import_base)
{
CompilerStack c;
c.setSources({
{"base", R"(
pragma solidity >=0.0;
contract Base {
uint x;
address a;
function f() internal returns (uint) {
a = address(this);
++x;
return 2;
}
}
)"},
{"der", R"(
pragma solidity >=0.0;
pragma experimental SMTChecker;
import "base";
contract Der is Base {
function g(uint y) public {
x += f();
assert(y > x);
}
}
)"}
});
c.setEVMVersion(solidity::test::CommonOptions::get().evmVersion());
BOOST_CHECK(c.compile());
unsigned asserts = 0;
for (auto const& e: c.errors())
{
string const* msg = e->comment();
BOOST_REQUIRE(msg);
if (msg->find("Assertion violation") != string::npos)
++asserts;
}
BOOST_CHECK_EQUAL(asserts, 1);
}
BOOST_AUTO_TEST_CASE(import_library)
{
CompilerStack c;
c.setSources({
{"lib", R"(
pragma solidity >=0.0;
library L {
uint constant one = 1;
function f() internal pure returns (uint) {
return one;
}
}
)"},
{"c", R"(
pragma solidity >=0.0;
pragma experimental SMTChecker;
import "lib";
contract C {
function g(uint x) public pure {
uint y = L.f();
assert(x > y);
}
}
)"}
});
c.setEVMVersion(solidity::test::CommonOptions::get().evmVersion());
BOOST_CHECK(c.compile());
unsigned asserts = 0;
for (auto const& e: c.errors())
{
string const* msg = e->comment();
BOOST_REQUIRE(msg);
if (msg->find("Assertion violation") != string::npos)
++asserts;
}
BOOST_CHECK_EQUAL(asserts, 1);
}
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BOOST_AUTO_TEST_SUITE_END()
}