Related:

• Never test for an error condition you don't know how to handle.
• Never test for an error condition you don't know how to handle.
  -- Steinbach's Guideline for Systems Programming...
• Steinbach's Guideline for Systems Programming: Never test for an error condition you don't know how to handle.
• Quote #380 Never check for an error condition you don't know how to handle.
  -- (Henry Spencer?)...
• Never test for a bug you don't know how to fix. -- QA Manage
• There is a saying among trial lawyers: "Never ask a question unless you are already SURE of the answer.
  For Dungeon Masters/Game Masters that should be Never roll the dice unless you're sure the outcome is acceptable....