1 files changed, 99 insertions, 0 deletions
diff --git a/test/contracts/ContractInterface.h b/test/contracts/ContractInterface.h
new file mode 100644
index 00000000..052b0db2
--- /dev/null
+++ b/test/contracts/ContractInterface.h
@@ -0,0 +1,99 @@
+/*
+	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/>.
+*/
+
+#pragma once
+
+#include <boost/test/unit_test.hpp>
+#include <test/ExecutionFramework.h>
+
+#include <functional>
+
+namespace dev
+{
+namespace test
+{
+
+class ContractInterface
+{
+public:
+	ContractInterface(ExecutionFramework& _framework): m_framework(_framework) {}
+
+	void setNextValue(u256 const& _value) { m_nextValue = _value; }
+
+protected:
+	template <class... Args>
+	bytes const& call(std::string const& _sig, Args const&... _arguments)
+	{
+		auto const& ret = m_framework.callContractFunctionWithValue(_sig, m_nextValue, _arguments...);
+		m_nextValue = 0;
+		return ret;
+	}
+
+	void callString(std::string const& _name, std::string const& _arg)
+	{
+		BOOST_CHECK(call(_name + "(string)", u256(0x20), _arg.length(), _arg).empty());
+	}
+
+	void callStringAddress(std::string const& _name, std::string const& _arg1, u160 const& _arg2)
+	{
+		BOOST_CHECK(call(_name + "(string,address)", u256(0x40), _arg2, _arg1.length(), _arg1).empty());
+	}
+
+	void callStringAddressBool(std::string const& _name, std::string const& _arg1, u160 const& _arg2, bool _arg3)
+	{
+		BOOST_CHECK(call(_name + "(string,address,bool)", u256(0x60), _arg2, _arg3, _arg1.length(), _arg1).empty());
+	}
+
+	void callStringBytes32(std::string const& _name, std::string const& _arg1, h256 const& _arg2)
+	{
+		BOOST_CHECK(call(_name + "(string,bytes32)", u256(0x40), _arg2, _arg1.length(), _arg1).empty());
+	}
+
+	u160 callStringReturnsAddress(std::string const& _name, std::string const& _arg)
+	{
+		bytes const& ret = call(_name + "(string)", u256(0x20), _arg.length(), _arg);
+		BOOST_REQUIRE(ret.size() == 0x20);
+		BOOST_CHECK(std::count(ret.begin(), ret.begin() + 12, 0) == 12);
+		return u160(u256(h256(ret)));
+	}
+
+	std::string callAddressReturnsString(std::string const& _name, u160 const& _arg)
+	{
+		bytesConstRef const ret(&call(_name + "(address)", _arg));
+		BOOST_REQUIRE(ret.size() >= 0x40);
+		u256 offset(h256(ret.cropped(0, 0x20)));
+		BOOST_REQUIRE_EQUAL(offset, 0x20);
+		u256 len(h256(ret.cropped(0x20, 0x20)));
+		BOOST_REQUIRE_EQUAL(ret.size(), 0x40 + ((len + 0x1f) / 0x20) * 0x20);
+		return ret.cropped(0x40, size_t(len)).toString();
+	}
+
+	h256 callStringReturnsBytes32(std::string const& _name, std::string const& _arg)
+	{
+		bytes const& ret = call(_name + "(string)", u256(0x20), _arg.length(), _arg);
+		BOOST_REQUIRE(ret.size() == 0x20);
+		return h256(ret);
+	}
+
+private:
+	u256 m_nextValue;
+	ExecutionFramework& m_framework;
+};
+
+}
+} // end namespaces
+