Over the past two years, I've gotten back into playing Dungeons & Dragons, the famous tabletop fantasy role-playing game. As a software developer and musician, one of my favorite character classes to play is the bard, a magical and inspiring performer or wordsmith. The list of basic bardic spells includes Vicious Mockery, enchanting verbal barbs that have the power to psychically damage and disadvantage an opponent even if they don't understand the words. (Can you see why this is so appealing to a coder?)
Mocking has a role to play in software testing as well, in the form of mock objects that simulate parts of a system that are too brittle, too slow, too complicated, or otherwise too finicky to use in reality. They enable discrete unit testing without relying on dependencies external to the code being tested. Mocks are great for databases, web services, or other network resources where the goal is to test what you wrote, not what's out in "the cloud" somewhere.
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