solidity/test/libsolidity/LibSolc.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/>.
*/
// SPDX-License-Identifier: GPL-3.0
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/**
* @date 2017
* Unit tests for libsolc/libsolc.cpp.
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*/
#include <string>
#include <boost/test/unit_test.hpp>
#include <libsolutil/JSON.h>
#include <libsolidity/interface/ReadFile.h>
#include <libsolidity/interface/Version.h>
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#include <libsolc/libsolc.h>
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using namespace std;
namespace solidity::frontend::test
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{
namespace
{
/// TODO: share this between StandardCompiler.cpp
/// Helper to match a specific error type and message
bool containsError(Json::Value const& _compilerResult, string const& _type, string const& _message)
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{
if (!_compilerResult.isMember("errors"))
return false;
for (auto const& error: _compilerResult["errors"])
{
BOOST_REQUIRE(error.isObject());
BOOST_REQUIRE(error["type"].isString());
BOOST_REQUIRE(error["message"].isString());
if ((error["type"].asString() == _type) && (error["message"].asString() == _message))
return true;
}
return false;
}
Json::Value compile(string const& _input, CStyleReadFileCallback _callback = nullptr)
{
char* output_ptr = solidity_compile(_input.c_str(), _callback, nullptr);
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string output(output_ptr);
solidity_free(output_ptr);
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solidity_reset();
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Json::Value ret;
BOOST_REQUIRE(util::jsonParseStrict(output, ret));
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return ret;
}
char* stringToSolidity(string const& _input)
{
char* ptr = solidity_alloc(_input.length());
BOOST_REQUIRE(ptr != nullptr);
std::memcpy(ptr, _input.c_str(), _input.length());
return ptr;
}
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} // end anonymous namespace
BOOST_AUTO_TEST_SUITE(LibSolc)
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BOOST_AUTO_TEST_CASE(read_version)
{
string output(solidity_version());
BOOST_CHECK(output.find(VersionString) == 0);
}
BOOST_AUTO_TEST_CASE(read_license)
{
string output(solidity_license());
BOOST_CHECK(output.find("GNU GENERAL PUBLIC LICENSE") != string::npos);
}
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BOOST_AUTO_TEST_CASE(standard_compilation)
{
char const* input = R"(
{
"language": "Solidity",
"sources": {
"fileA": {
"content": "contract A { }"
}
}
}
)";
Json::Value result = compile(input);
BOOST_REQUIRE(result.isObject());
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// Only tests some assumptions. The StandardCompiler is tested properly in another suite.
BOOST_CHECK(result.isMember("sources"));
// This used to test that it is a member, but we did not actually request any output,
// so there should not be a contract member.
BOOST_CHECK(!result.isMember("contracts"));
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}
BOOST_AUTO_TEST_CASE(missing_callback)
{
char const* input = R"(
{
"language": "Solidity",
"sources": {
"fileA": {
"content": "import \"missing.sol\"; contract A { }"
}
}
}
)";
Json::Value result = compile(input);
BOOST_REQUIRE(result.isObject());
BOOST_CHECK(containsError(result, "ParserError", "Source \"missing.sol\" not found: File not supplied initially."));
}
BOOST_AUTO_TEST_CASE(with_callback)
{
char const* input = R"(
{
"language": "Solidity",
"sources": {
"fileA": {
"content": "import \"found.sol\"; import \"notfound.sol\"; contract A { }"
}
}
}
)";
CStyleReadFileCallback callback{
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[](void* _context, char const* _kind, char const* _path, char** o_contents, char** o_error)
{
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// Passed in a nullptr in the compile() helper above.
BOOST_REQUIRE(_context == nullptr);
// Caller frees the pointers.
BOOST_REQUIRE(string(_kind) == ReadCallback::kindString(ReadCallback::Kind::ReadFile));
if (string(_path) == "found.sol")
{
static string content{"import \"missing.sol\"; contract B {}"};
*o_contents = stringToSolidity(content);
*o_error = nullptr;
}
else if (string(_path) == "missing.sol")
{
static string errorMsg{"Missing file."};
*o_error = stringToSolidity(errorMsg);
*o_contents = nullptr;
}
else
{
*o_error = nullptr;
*o_contents = nullptr;
}
}
};
Json::Value result = compile(input, callback);
BOOST_REQUIRE(result.isObject());
// This ensures that "found.sol" was properly loaded which triggered the second import statement.
BOOST_CHECK(containsError(result, "ParserError", "Source \"missing.sol\" not found: Missing file."));
// This should be placed due to the missing "notfound.sol" which sets both pointers to null.
BOOST_CHECK(containsError(result, "ParserError", "Source \"notfound.sol\" not found: Callback not supported."));
}
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BOOST_AUTO_TEST_SUITE_END()
} // end namespaces