add simple unittest

test/IXTest.h

@@ -0,0 +1,24 @@
+/*
+ *  IXTest.h
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2018 Machine Zone. All rights reserved.
+ */
+
+#pragma once
+
+#include <string>
+#include <vector>
+#include <sstream>
+
+namespace ix
+{
+    // Sleep for ms milliseconds.
+    void msleep(int ms);
+
+    // Generate a relatively random string
+    std::string generateSessionId();
+
+    // Record and report websocket traffic
+    void setupWebSocketTrafficTrackerCallback();
+    void reportWebSocketTraffic();
+}