Kristoff's wroclove.rb 2025 lightning talk. Argues that RSpec is a big tool built specifically for specs — tests written for humans — and that specs are a subset of tests. Frames minitest as 'the Internet Explorer of Windows — download another browser to delete it', noting that on every new project he has worked on, RSpec gets installed to replace minitest. Mentions smaller alternatives like testbench and Joel Drapper's Quickdraw. Side-by-side examples from testbench (a plain Ruby test) and minitest in both test and spec modes illustrate the distinction. Closes with: to use RSpec correctly, leverage its DSL — custom matchers (e.g. asserting an operation returns a decorated object), higher-level helper DSLs that name intent ('stub a policy, stub a service'), and 'with every combination' helpers for combinatorial cases. Quotes an RSpec maintainer: RSpec is 'bare bones' out of the box — users have to expand it to use it correctly.