This site key interest areas:

• Embedded World
• Systems, Software & Hardware
• Developing software & hardware
• Processes, people, skills, organisations, agile & lean approach's
• Testing at all levels
• Tools, methods, scope, analysis
• And where it all begins ... Requirements
• the requirements- development- and the  testing/verification phases

   I will slowly be applying various comments and articles, references and like

Simplest way of testing is using a I/O pin to verify the code behaivour. Will it ever change ???

Where and how far the code executes, how many times it passes a given point and much more down that road.