solidity JSON interface tests

test/solidityJSONInterfaceTest.cpp

@@ -0,0 +1,213 @@
+/*
+	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.
+ */
+
+#include <libsolidity/CompilerStack.h>
+#include <jsonrpc/json/json.h>
+#include <boost/test/unit_test.hpp>
+
+namespace dev
+{
+namespace solidity
+{
+namespace test
+{
+
+class InterfaceChecker {
+public:
+	bool checkInterface(std::string const& _code, std::string const& _expectedInterfaceString)
+	{
+		m_compilerStack.compile(_code);
+		std::string generatedInterfaceString = m_compilerStack.getInterface();
+		Json::Value generatedInterface;
+		m_reader.parse(generatedInterfaceString, generatedInterface);
+		Json::Value expectedInterface;
+		m_reader.parse(_expectedInterfaceString, expectedInterface);
+		return expectedInterface == generatedInterface;
+	}
+	
+private:
+	CompilerStack m_compilerStack;
+	Json::Reader m_reader;
+};
+
+BOOST_FIXTURE_TEST_SUITE(SolidityCompilerJSONInterfaceOutput, InterfaceChecker)
+
+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",
+		"inputs": [
+		{
+			"name": "a",
+			"type": "uint256"
+		}
+		],
+		"outputs": [
+		{
+			"name": "d",
+			"type": "uint256"
+		}
+		]
+	}
+	])";
+
+	BOOST_CHECK(checkInterface(sourceCode, interface));
+}
+
+BOOST_AUTO_TEST_CASE(empty_contract)
+{
+	char const* sourceCode = "contract test {\n"
+	"}\n";
+
+	char const* interface = "[]";
+
+	BOOST_CHECK(checkInterface(sourceCode, interface));
+}
+
+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";
+	
+	char const* interface = R"([
+	{
+		"name": "f",
+		"inputs": [
+		{
+			"name": "a",
+			"type": "uint256"
+		}
+		],
+		"outputs": [
+		{
+			"name": "d",
+			"type": "uint256"
+		}
+		]
+	},
+	{
+		"name": "g",
+		"inputs": [
+		{
+			"name": "b",
+			"type": "uint256"
+		}
+		],
+		"outputs": [
+		{
+			"name": "e",
+			"type": "uint256"
+		}
+		]
+	}
+	])";
+
+	BOOST_CHECK(checkInterface(sourceCode, interface));
+}
+
+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",
+		"inputs": [
+		{
+			"name": "a",
+			"type": "uint256"
+		},
+		{
+			"name": "b",
+			"type": "uint256"
+		}
+		],
+		"outputs": [
+		{
+			"name": "d",
+			"type": "uint256"
+		}
+		]
+	}
+	])";
+
+	BOOST_CHECK(checkInterface(sourceCode, interface));
+}
+
+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";
+		
+	char const* interface = R"([
+	{
+		"name": "c",
+		"inputs": [
+		{
+			"name": "b",
+			"type": "uint256"
+		}
+		],
+		"outputs": [
+		{
+			"name": "e",
+			"type": "uint256"
+		}
+		]
+	},
+	{
+		"name": "f",
+		"inputs": [
+		{
+			"name": "a",
+			"type": "uint256"
+		}
+		],
+		"outputs": [
+		{
+			"name": "d",
+			"type": "uint256"
+		}
+		]
+	}
+	])";
+	
+	BOOST_CHECK(checkInterface(sourceCode, interface));
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+}
+}
+}