solidity/SolidityABIJSON.cpp

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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 Marek Kotewicz <marek@ethdev.com>
* @date 2014
* Unit tests for the solidity compiler JSON Interface output.
*/
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#include <boost/test/unit_test.hpp>
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#include <libsolidity/CompilerStack.h>
#include <jsoncpp/json/json.h>
#include <libdevcore/Exceptions.h>
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namespace dev
{
namespace solidity
{
namespace test
{
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class InterfaceChecker
{
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public:
void checkInterface(std::string const& _code, std::string const& _expectedInterfaceString)
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{
try
{
m_compilerStack.parse(_code);
}
catch (const std::exception& e)
{
std::string const* extra = boost::get_error_info<errinfo_comment>(e);
std::string msg = std::string("Parsing contract failed with: ") +
e.what() + std::string("\n");
if (extra)
msg += *extra;
BOOST_FAIL(msg);
}
std::string generatedInterfaceString = m_compilerStack.getMetadata("", DocumentationType::ABI_INTERFACE);
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Json::Value generatedInterface;
m_reader.parse(generatedInterfaceString, generatedInterface);
Json::Value expectedInterface;
m_reader.parse(_expectedInterfaceString, expectedInterface);
BOOST_CHECK_MESSAGE(expectedInterface == generatedInterface,
"Expected " << _expectedInterfaceString <<
"\n but got:\n" << generatedInterfaceString);
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}
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private:
CompilerStack m_compilerStack;
Json::Reader m_reader;
};
BOOST_FIXTURE_TEST_SUITE(SolidityABIJSON, InterfaceChecker)
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BOOST_AUTO_TEST_CASE(basic_test)
{
char const* sourceCode = "contract test {\n"
" function f(uint a) returns(uint d) { return a * 7; }\n"
"}\n";
char const* interface = R"([
{
"name": "f",
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"constant": false,
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"inputs": [
{
"name": "a",
"type": "uint256"
}
],
"outputs": [
{
"name": "d",
"type": "uint256"
}
]
}
])";
checkInterface(sourceCode, interface);
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}
BOOST_AUTO_TEST_CASE(empty_contract)
{
char const* sourceCode = "contract test {\n"
"}\n";
char const* interface = "[]";
checkInterface(sourceCode, interface);
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}
BOOST_AUTO_TEST_CASE(multiple_methods)
{
char const* sourceCode = "contract test {\n"
" function f(uint a) returns(uint d) { return a * 7; }\n"
" function g(uint b) returns(uint e) { return b * 8; }\n"
"}\n";
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char const* interface = R"([
{
"name": "f",
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"constant": false,
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"inputs": [
{
"name": "a",
"type": "uint256"
}
],
"outputs": [
{
"name": "d",
"type": "uint256"
}
]
},
{
"name": "g",
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"constant": false,
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"inputs": [
{
"name": "b",
"type": "uint256"
}
],
"outputs": [
{
"name": "e",
"type": "uint256"
}
]
}
])";
checkInterface(sourceCode, interface);
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}
BOOST_AUTO_TEST_CASE(multiple_params)
{
char const* sourceCode = "contract test {\n"
" function f(uint a, uint b) returns(uint d) { return a + b; }\n"
"}\n";
char const* interface = R"([
{
"name": "f",
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"constant": false,
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"inputs": [
{
"name": "a",
"type": "uint256"
},
{
"name": "b",
"type": "uint256"
}
],
"outputs": [
{
"name": "d",
"type": "uint256"
}
]
}
])";
checkInterface(sourceCode, interface);
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}
BOOST_AUTO_TEST_CASE(multiple_methods_order)
{
// methods are expected to be in alpabetical order
char const* sourceCode = "contract test {\n"
" function f(uint a) returns(uint d) { return a * 7; }\n"
" function c(uint b) returns(uint e) { return b * 8; }\n"
"}\n";
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char const* interface = R"([
{
"name": "c",
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"constant": false,
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"inputs": [
{
"name": "b",
"type": "uint256"
}
],
"outputs": [
{
"name": "e",
"type": "uint256"
}
]
},
{
"name": "f",
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"constant": false,
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"inputs": [
{
"name": "a",
"type": "uint256"
}
],
"outputs": [
{
"name": "d",
"type": "uint256"
}
]
}
])";
checkInterface(sourceCode, interface);
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}
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BOOST_AUTO_TEST_CASE(const_function)
{
char const* sourceCode = "contract test {\n"
" function foo(uint a, uint b) returns(uint d) { return a + b; }\n"
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" function boo(uint32 a) constant returns(uint b) { return a * 4; }\n"
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"}\n";
char const* interface = R"([
{
"name": "foo",
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"constant": false,
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"inputs": [
{
"name": "a",
"type": "uint256"
},
{
"name": "b",
"type": "uint256"
}
],
"outputs": [
{
"name": "d",
"type": "uint256"
}
]
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},
{
"name": "boo",
"constant": true,
"inputs": [{
"name": "a",
"type": "uint32"
}],
"outputs": [
{
"name": "b",
"type": "uint256"
}
]
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}
])";
checkInterface(sourceCode, interface);
}
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BOOST_AUTO_TEST_SUITE_END()
}
}
}