11.7.2. Unit Testing

Try these first

1. 1.

   What is the purpose of unit testing?

   Hint

   Think about what happens when you run tests on small pieces of your code.

2. 2.

   What do CMSIS drivers control?

   Hint

   Consider what other systems interact directly with the hardware.

3. 3.

   What is unit testing primarily designed to achieve?

   • To test the complete software system
   • To evaluate individual code components
   • To debug running software

   Hint

   Think about what unit testing addresses specifically.

4. 4.

   True or False: CMSIS drivers can work without unit testing.

   • True
   • False

   Hint

   Consider what happens without validation.

5. 5.

   You are tasked with designing a robust unit testing strategy for a new UART driver. Outline your approach, detailing what scenarios you would test.

   Hint

   Think about all operations the UART driver performs.

6. 6.

   A unit test for a GPIO driver fails during a test of the LED turning on. What are the potential reasons for this failure?

   Hint

   Consider both software and hardware aspects.