/*
    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 2014
 * Unit tests for the solidity parser.
 */

#include <string>

#include <libdevcore/Log.h>
#include <libsolidity/Scanner.h>
#include <libsolidity/Parser.h>
#include <boost/test/unit_test.hpp>

namespace dev {
namespace solidity {
namespace test {

namespace {
	ptr<ASTNode> parseText(const std::string& _source)
	{
		Parser parser;
		return parser.parse(std::make_shared<Scanner>(CharStream(_source)));
	}
}

BOOST_AUTO_TEST_SUITE(SolidityParser)

BOOST_AUTO_TEST_CASE(smoke_test)
{
	char const* text = "contract test {\n"
					   "  uint256 stateVariable1;\n"
					   "}\n";
	BOOST_CHECK_NO_THROW(parseText(text));
}

BOOST_AUTO_TEST_CASE(missing_variable_name_in_declaration)
{
	char const* text = "contract test {\n"
					   "  uint256 ;\n"
					   "}\n";
	cwarn << "The next error is expected.";
	BOOST_CHECK_THROW(parseText(text), std::exception);
}

BOOST_AUTO_TEST_CASE(empty_function)
{
	char const* text = "contract test {\n"
					   "  uint256 stateVar;\n"
					   "  function functionName(hash160 arg1, address addr) const\n"
					   "    returns (int id)\n"
					   "  { }\n"
					   "}\n";
	BOOST_CHECK_NO_THROW(parseText(text));
}

BOOST_AUTO_TEST_CASE(no_function_params)
{
	char const* text = "contract test {\n"
					   "  uint256 stateVar;\n"
					   "  function functionName() {}\n"
					   "}\n";
	BOOST_CHECK_NO_THROW(parseText(text));
}

BOOST_AUTO_TEST_CASE(single_function_param)
{
	char const* text = "contract test {\n"
					   "  uint256 stateVar;\n"
					   "  function functionName(hash hashin) returns (hash hashout) {}\n"
					   "}\n";
	BOOST_CHECK_NO_THROW(parseText(text));
}

BOOST_AUTO_TEST_CASE(struct_definition)
{
	char const* text = "contract test {\n"
					   "  uint256 stateVar;\n"
					   "  struct MyStructName {\n"
					   "    address addr;\n"
					   "    uint256 count;\n"
					   "  }\n"
					   "}\n";
	BOOST_CHECK_NO_THROW(parseText(text));
}

BOOST_AUTO_TEST_CASE(mapping)
{
	char const* text = "contract test {\n"
					   "  mapping(address => string) names;\n"
					   "}\n";
	BOOST_CHECK_NO_THROW(parseText(text));
}

BOOST_AUTO_TEST_CASE(mapping_in_struct)
{
	char const* text = "contract test {\n"
					   "  struct test_struct {\n"
					   "    address addr;\n"
					   "    uint256 count;\n"
					   "    mapping(hash => test_struct) self_reference;\n"
					   "  }\n"
					   "}\n";
	BOOST_CHECK_NO_THROW(parseText(text));
}

BOOST_AUTO_TEST_CASE(mapping_to_mapping_in_struct)
{
	char const* text = "contract test {\n"
					   "  struct test_struct {\n"
					   "    address addr;\n"
					   "    mapping (uint64 => mapping (hash => uint)) complex_mapping;\n"
					   "  }\n"
					   "}\n";
	BOOST_CHECK_NO_THROW(parseText(text));
}


BOOST_AUTO_TEST_SUITE_END()

} } } // end namespaces