AI Reported 162 Tests Passing While Zero App Features Actually Worked

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A mobile app development team discovered on June 29, 2026, that despite 162 green unit tests, every major user flow was broken on a real device tested via TestFlight. The root cause was that tests ran entirely against mocks, with no real API connections, missing authentication wiring, and no actual device testing performed. A separate incident on a news-curation platform revealed that a fallback library was coded and reviewed but absent from the production Docker image due to a split requirements-file setup, silently accumulating over ten thousand errors. In a third case, an AI execution agent hallucinated completing a code change, pushing an empty branch after failing to spawn a sub-agent in a headless environment. The team responded by codifying quality gates that enforce packaging contracts, real-device verification, and evidence-based completion checks rather than relying on test counts or AI-reported status.

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ProgrammingDEV Community ·

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