Add basic tests for StandardCompiler

test/libsolidity/StandardCompiler.cpp

@@ -0,0 +1,155 @@
+/*
+	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/>.
+*/
+/**
+ * @date 2017
+ * Unit tests for interface/StandardCompiler.h.
+ */
+
+#include <string>
+#include <iostream>
+#include <boost/test/unit_test.hpp>
+#include <libsolidity/interface/StandardCompiler.h>
+
+
+using namespace std;
+using namespace dev::eth;
+
+namespace dev
+{
+namespace solidity
+{
+namespace test
+{
+
+namespace
+{
+
+/// Helper to match a specific error type and message
+bool containsError(Json::Value const& _compilerResult, string const& _type, string const& _message)
+{
+	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;
+}
+
+bool containsAtMostWarnings(Json::Value const& _compilerResult)
+{
+	if (!_compilerResult.isMember("errors"))
+		return true;
+
+	for (auto const& error: _compilerResult["errors"])
+	{
+		BOOST_REQUIRE(error.isObject());
+		BOOST_REQUIRE(error["severity"].isString());
+		if (error["severity"].asString() != "warning")
+			return false;
+	}
+
+	return true;
+}
+
+Json::Value compile(string const& _input)
+{
+	StandardCompiler compiler;
+	string output = compiler.compile(_input);
+	Json::Value ret;
+	BOOST_REQUIRE(Json::Reader().parse(output, ret, false));
+	return ret;
+}
+
+} // end anonymous namespace
+
+BOOST_AUTO_TEST_SUITE(StandardCompiler)
+
+BOOST_AUTO_TEST_CASE(assume_object_input)
+{
+	Json::Value result = compile("");
+	BOOST_CHECK(containsError(result, "JSONError", "* Line 1, Column 1\n  Syntax error: value, object or array expected.\n"));
+	result = compile("invalid");
+	BOOST_CHECK(containsError(result, "JSONError", "* Line 1, Column 1\n  Syntax error: value, object or array expected.\n"));
+	result = compile("\"invalid\"");
+	BOOST_CHECK(containsError(result, "JSONError", "Input is not a JSON object."));
+	BOOST_CHECK(!containsError(result, "JSONError", "* Line 1, Column 1\n  Syntax error: value, object or array expected.\n"));
+	result = compile("{}");
+	BOOST_CHECK(!containsError(result, "JSONError", "* Line 1, Column 1\n  Syntax error: value, object or array expected.\n"));
+	BOOST_CHECK(!containsAtMostWarnings(result));
+}
+
+BOOST_AUTO_TEST_CASE(invalid_language)
+{
+	char const* input = R"(
+	{
+		"language": "INVALID"
+	}
+	)";
+	Json::Value result = compile(input);
+	BOOST_CHECK(containsError(result, "JSONError", "Only \"Solidity\" is supported as a language."));
+}
+
+BOOST_AUTO_TEST_CASE(valid_language)
+{
+	char const* input = R"(
+	{
+		"language": "Solidity"
+	}
+	)";
+	Json::Value result = compile(input);
+	BOOST_CHECK(!containsError(result, "JSONError", "Only \"Solidity\" is supported as a language."));
+}
+
+BOOST_AUTO_TEST_CASE(no_sources)
+{
+	char const* input = R"(
+	{
+		"language": "Solidity"
+	}
+	)";
+	Json::Value result = compile(input);
+	BOOST_CHECK(containsError(result, "JSONError", "No input sources specified."));
+}
+
+BOOST_AUTO_TEST_CASE(smoke_test)
+{
+	char const* input = R"(
+	{
+		"language": "Solidity",
+		"sources": {
+			"empty": {
+				"content": ""
+			}
+		}
+	}
+	)";
+	Json::Value result = compile(input);
+	BOOST_CHECK(containsAtMostWarnings(result));
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+}
+}
+} // end namespaces