Question

I’m trying to do TDD, I’m not clear on how to do it for logging logic that I write.

Fox example, what would be a test for following:

  if(importantCriteriaNotMet)
  {
     log.Info("My message here");
  }

How would I test that logging code?
Should I be testing it?

Answer 1

If log is of ILog type:

• Mock your ILog interface
• Inject your mocked object
• assert that log.Info is called when importantCriteriaNotMet is true