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/*
This file is part of cpp-ethereum.
cpp-ethereum 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.
cpp-ethereum 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 cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @author Christian <c@ethdev.com>
* @date 2015
* Unit tests for the gas estimator.
*/
#include <test/libsolidity/solidityExecutionFramework.h>
#include <libsolidity/AST.h>
#include <libsolidity/StructuralGasEstimator.h>
#include <libsolidity/SourceReferenceFormatter.h>
using namespace std;
using namespace dev::eth;
using namespace dev::solidity;
namespace dev
{
namespace solidity
{
namespace test
{
class GasMeterTestFramework: public ExecutionFramework
{
public:
GasMeterTestFramework() { }
void compile(string const& _sourceCode)
{
m_compiler.setSource(_sourceCode);
ETH_TEST_REQUIRE_NO_THROW(m_compiler.compile(), "Compiling contract failed");
StructuralGasEstimator estimator;
AssemblyItems const* items = m_compiler.getRuntimeAssemblyItems("");
ASTNode const& sourceUnit = m_compiler.getAST();
BOOST_REQUIRE(items != nullptr);
m_gasCosts = estimator.breakToStatementLevel(
estimator.performEstimation(*items, vector<ASTNode const*>({&sourceUnit})),
{&sourceUnit}
);
}
protected:
dev::solidity::CompilerStack m_compiler;
map<ASTNode const*, eth::GasMeter::GasConsumption> m_gasCosts;
};
BOOST_FIXTURE_TEST_SUITE(GasMeterTests, GasMeterTestFramework)
BOOST_AUTO_TEST_CASE(non_overlapping_filtered_costs)
{
char const* sourceCode = R"(
contract test {
bytes x;
function f(uint a) returns (uint b) {
x.length = a;
for (; a < 200; ++a) {
x[a] = 9;
b = a * a;
}
return f(a - 1);
}
}
)";
compile(sourceCode);
for (auto first = m_gasCosts.cbegin(); first != m_gasCosts.cend(); ++first)
{
auto second = first;
for (++second; second != m_gasCosts.cend(); ++second)
if (first->first->getLocation().intersects(second->first->getLocation()))
{
BOOST_CHECK_MESSAGE(false, "Source locations should not overlap!");
SourceReferenceFormatter::printSourceLocation(cout, first->first->getLocation(), m_compiler.getScanner());
SourceReferenceFormatter::printSourceLocation(cout, second->first->getLocation(), m_compiler.getScanner());
}
}
}
BOOST_AUTO_TEST_SUITE_END()
}
}
}
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