Sound advice, but that ship has sailed. This is an existing lambda that I'm refactoring so I need to be able to "go through the front door", as it were. Once I

Sound advice, but that ship has sailed. This is an existing lambda that I'm refactoring so I need to be able to "go through the front door", as it were. Once I become more familiar with the code, I'll be able to test individual pieces are you're recommending.