mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
139 lines
3.3 KiB
C++
139 lines
3.3 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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* Unit tests for the view and pure checker.
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*/
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#include <test/libsolidity/AnalysisFramework.h>
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#include <test/Options.h>
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#include <boost/test/unit_test.hpp>
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#include <string>
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#include <tuple>
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using namespace std;
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using namespace langutil;
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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_FIXTURE_TEST_SUITE(ViewPureChecker, AnalysisFramework)
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BOOST_AUTO_TEST_CASE(environment_access)
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{
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vector<string> view{
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"block.coinbase",
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"block.timestamp",
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"block.difficulty",
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"block.number",
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"block.gaslimit",
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"blockhash(7)",
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"gasleft()",
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"msg.value",
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"msg.sender",
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"tx.origin",
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"tx.gasprice",
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"this",
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"address(1).balance",
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};
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if (dev::test::Options::get().evmVersion().hasStaticCall())
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view.emplace_back("address(0x4242).staticcall(\"\")");
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// ``block.blockhash`` and ``blockhash`` are tested separately below because their usage will
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// produce warnings that can't be handled in a generic way.
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vector<string> pure{
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"msg.data",
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"msg.data[0]",
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"msg.sig",
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"msg",
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"block",
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"tx"
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};
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for (string const& x: view)
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{
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CHECK_ERROR(
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"contract C { function f() pure public { " + x + "; } }",
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TypeError,
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"Function declared as pure, but this expression (potentially) reads from the environment or state and thus requires \"view\""
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);
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}
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for (string const& x: pure)
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{
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CHECK_WARNING(
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"contract C { function f() view public { " + x + "; } }",
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"Function state mutability can be restricted to pure"
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);
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}
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CHECK_WARNING_ALLOW_MULTI(
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"contract C { function f() view public { blockhash; } }",
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(std::vector<std::string>{
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"Function state mutability can be restricted to pure",
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"Statement has no effect."
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}));
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CHECK_ERROR(
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"contract C { function f() view public { block.blockhash; } }",
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TypeError,
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"\"block.blockhash()\" has been deprecated in favor of \"blockhash()\""
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);
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}
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BOOST_AUTO_TEST_CASE(address_staticcall)
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{
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string text = R"(
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contract C {
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function i() view public returns (bool) {
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(bool success,) = address(0x4242).staticcall("");
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return success;
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}
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}
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)";
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if (!dev::test::Options::get().evmVersion().hasStaticCall())
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CHECK_ERROR(text, TypeError, "\"staticcall\" is not supported by the VM version.");
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else
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CHECK_SUCCESS_NO_WARNINGS(text);
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}
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BOOST_AUTO_TEST_CASE(assembly_staticcall)
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{
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string text = R"(
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contract C {
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function i() view public {
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assembly { pop(staticcall(gas, 1, 2, 3, 4, 5)) }
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}
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}
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)";
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if (!dev::test::Options::get().evmVersion().hasStaticCall())
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CHECK_ERROR(text, TypeError, "\"staticcall\" instruction is only available for Byzantium-compatible");
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else
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CHECK_SUCCESS_NO_WARNINGS(text);
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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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}
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