Adding a test suite after the fact sucks

• It feels and looks unproductive
  • long period of time not writing any new functionality
  • makes managers nervous
  • No one wants to pay for it

• Hard to schedule/estimate large scale test writing and bug hunting time
• Code is low quality
  • Long bug hunts crush team morale

• Nobody's used the code
  • Lots of stupid mistakes entrenched in the design

• Don't remember why you did things
• Don't know what you're breaking if you change things

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