Harden flaky test isolation
Hard Debugging arena: test ordering, shared state, fake timers, and cleanup
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Missing prerequisites: debugging-easy-flaky-test
A unit test fails only when the entire suite runs in CI. You are working inside a debugging war room, and the arena only clears when the result is safe, deterministic, and explainable.
Learn to apply test ordering, shared state, fake timers, and cleanup in a debugging war room while explaining the invariant, safety constraints, and hidden edge cases.
- Demonstrates test ordering, shared state, fake timers, and cleanup
- Handles the visible sample and hidden edge cases
- Keeps output deterministic and explainable
- Avoids unsafe dynamic execution
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Genie Mentor Core
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