Yes that’s exactly what it is. If you business is selling a game that works, ogres not eating other ogres is a requirement for your game to be considered bug fr

Yes that’s exactly what it is. If you business is selling a game that works, ogres not eating other ogres is a requirement for your game to be considered bug free and sell well. (YMMV, depending on who your audience is ogre cannibal feat might also be fun). This is as opposed to testing that that the eat method on the ogre only accepts an instance of the Human class. If you do that you’ll have a brittle system on your hands, and when your ogres decide to eat horses (business decision) you’ll have to change a lot of tests and will instead procrastinate by writing a blog post about why TDD sucks.