diff --git a/test/Common.cpp b/test/Common.cpp
new file mode 100644
index 000000000..a80c55d4c
--- /dev/null
+++ b/test/Common.cpp
@@ -0,0 +1,50 @@
+/*
+	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/>.
+*/
+
+#include <test/Common.h>
+
+#include <boost/filesystem.hpp>
+
+namespace fs = boost::filesystem;
+
+namespace dev
+{
+namespace test
+{
+
+boost::filesystem::path discoverTestPath()
+{
+	auto const searchPath =
+	{
+		fs::current_path() / ".." / ".." / ".." / "test",
+		fs::current_path() / ".." / ".." / "test",
+		fs::current_path() / ".." / "test",
+		fs::current_path() / "test",
+		fs::current_path()
+	};
+	for (auto const& basePath: searchPath)
+	{
+		fs::path syntaxTestPath = basePath / "libsolidity" / "syntaxTests";
+		if (fs::exists(syntaxTestPath) && fs::is_directory(syntaxTestPath))
+			return basePath;
+	}
+	return {};
+}
+
+
+}
+}
diff --git a/test/Common.h b/test/Common.h
new file mode 100644
index 000000000..e87faa0e6
--- /dev/null
+++ b/test/Common.h
@@ -0,0 +1,35 @@
+/*
+	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/filesystem/path.hpp>
+
+namespace dev
+{
+namespace test
+{
+
+/// Tries to find a path that contains the directories "libsolidity/syntaxTests"
+/// and returns it if found.
+/// The routine searches in the current directory, and inside the "test" directory
+/// starting from the current directory and up to three levels up.
+/// @returns the path of the first match or an empty path if not found.
+boost::filesystem::path discoverTestPath();
+
+}
+}
diff --git a/test/Options.cpp b/test/Options.cpp
index 635882378..da08eb37d 100644
--- a/test/Options.cpp
+++ b/test/Options.cpp
@@ -21,6 +21,8 @@
 
 #include <test/Options.h>
 
+#include <test/Common.h>
+
 #include <libsolidity/interface/EVMVersion.h>
 #include <libsolidity/interface/Exceptions.h>
 
@@ -74,25 +76,7 @@ Options::Options()
 			testPath = path;
 
 	if (testPath.empty())
-	{
-		auto const searchPath =
-		{
-			fs::current_path() / ".." / ".." / ".." / "test",
-			fs::current_path() / ".." / ".." / "test",
-			fs::current_path() / ".." / "test",
-			fs::current_path() / "test",
-			fs::current_path()
-		};
-		for (auto const& basePath : searchPath)
-		{
-			fs::path syntaxTestPath = basePath / "libsolidity" / "syntaxTests";
-			if (fs::exists(syntaxTestPath) && fs::is_directory(syntaxTestPath))
-			{
-				testPath = basePath;
-				break;
-			}
-		}
-	}
+		testPath = discoverTestPath();
 }
 
 void Options::validate() const
diff --git a/test/tools/CMakeLists.txt b/test/tools/CMakeLists.txt
index d6df0ac84..2f107d39c 100644
--- a/test/tools/CMakeLists.txt
+++ b/test/tools/CMakeLists.txt
@@ -1,7 +1,7 @@
 add_executable(solfuzzer fuzzer.cpp)
 target_link_libraries(solfuzzer PRIVATE libsolc evmasm ${Boost_PROGRAM_OPTIONS_LIBRARIES} ${Boost_SYSTEM_LIBRARIES})
 
-add_executable(isoltest isoltest.cpp ../Options.cpp ../libsolidity/TestCase.cpp ../libsolidity/SyntaxTest.cpp
+add_executable(isoltest isoltest.cpp ../Options.cpp ../Common.cpp ../libsolidity/TestCase.cpp ../libsolidity/SyntaxTest.cpp
         ../libsolidity/AnalysisFramework.cpp ../libsolidity/SolidityExecutionFramework.cpp ../ExecutionFramework.cpp
         ../RPCSession.cpp ../libsolidity/ASTJSONTest.cpp)
 target_link_libraries(isoltest PRIVATE libsolc solidity evmasm ${Boost_PROGRAM_OPTIONS_LIBRARIES} ${Boost_UNIT_TEST_FRAMEWORK_LIBRARIES})
diff --git a/test/tools/isoltest.cpp b/test/tools/isoltest.cpp
index 5cf1d9c0b..dac87d1c0 100644
--- a/test/tools/isoltest.cpp
+++ b/test/tools/isoltest.cpp
@@ -16,6 +16,8 @@
 */
 
 #include <libdevcore/CommonIO.h>
+
+#include <test/Common.h>
 #include <test/libsolidity/AnalysisFramework.h>
 #include <test/libsolidity/SyntaxTest.h>
 #include <test/libsolidity/ASTJSONTest.h>
@@ -47,7 +49,7 @@ struct TestStats
 	int successCount;
 	int testCount;
 	operator bool() const { return successCount == testCount; }
-	TestStats& operator+=(TestStats const& _other)
+	TestStats& operator+=(TestStats const& _other) noexcept
 	{
 		successCount += _other.successCount;
 		testCount += _other.testCount;
@@ -285,25 +287,6 @@ void setupTerminal()
 #endif
 }
 
-fs::path discoverTestPath()
-{
-	auto const searchPath =
-	{
-		fs::current_path() / ".." / ".." / ".." / "test",
-		fs::current_path() / ".." / ".." / "test",
-		fs::current_path() / ".." / "test",
-		fs::current_path() / "test",
-		fs::current_path()
-	};
-	for (auto const& basePath: searchPath)
-	{
-		fs::path syntaxTestPath = basePath / "libsolidity" / "syntaxTests";
-		if (fs::exists(syntaxTestPath) && fs::is_directory(syntaxTestPath))
-			return basePath;
-	}
-	return {};
-}
-
 boost::optional<TestStats> runTestSuite(
 	string const& _name,
 	fs::path const& _basePath,
@@ -384,7 +367,7 @@ Allowed options)",
 	}
 
 	if (testPath.empty())
-		testPath = discoverTestPath();
+		testPath = dev::test::discoverTestPath();
 
 	TestStats global_stats{0, 0};