Adding some test cases for the pre-processor. (Total hack, requires copying and pasting code from the actual app source into another file and running a shell script, but it's better than nothing.)

app/preproc/test/data/foo1.cpp

@@ -0,0 +1,21 @@
+int encoder = 4;
+unsigned long speed = 0;
+
+void setup() 
+{ 
+  pinMode(encoder, INPUT);
+}
+
+void loop() 
+{ 
+    speed = getspeed();
+    delay(1000);  
+} 
+
+unsigned long getspeed()
+{
+  unsigned long duration = 0;
+  duration = pulseIn(encoder, HIGH);
+  return(duration);
+} 
+