Test Theater

ELI5 — The Vibe Check

Test theater is writing tests primarily to make reviewers happy rather than to catch bugs. The tests exist. They pass. They'd also pass if you deleted the code they're supposed to test. Looks rigorous; is useless.

Real Talk

Test theater describes tests whose primary function is signaling rather than verification — passing code review, meeting coverage thresholds, or fulfilling process requirements. Includes tautological tests, shallow snapshot tests, and tests against mocked dependencies that bypass the logic under test. Mutation testing and property-based testing surface test theater.

When You'll Hear This

"Those tests pass no matter what I change. Pure test theater." / "Test theater inflates coverage without catching regressions."