ADD preparation for tests

multi_tasking/bike_system.hpp

@@ -58,6 +58,7 @@ class BikeSystem {
 
 #if defined(MBED_TEST_MODE)
     const advembsof::TaskLogger& getTaskLogger();
+    bike_computer::Speedometer& getSpeedometer();
 #endif  // defined(MBED_TEST_MODE)
 
    private:
@@ -69,8 +70,17 @@ class BikeSystem {
     void displayTask();
     void cpuTask();
 
-    // ISR Thread
+// ISR Thread
+#if defined(MBED_TEST_MODE)
+
+   public:
+#endif
     void onReset();
+#if defined(MBED_TEST_MODE)
+
+   private:
+#endif
+
     void resetTask();
 
     // gear Thread