FrontendHaltTesting·Intermediate·Conceptual·1 min read
What's the risk of jest --updateSnapshot becoming a habit?
Short interview answer
The snapshot's whole purpose is to force a human to notice output changed. If updating is reflexive, an actual regression is committed as the new correct baseline and every future run compares against the broken state, so the test stops protecting anything.
Key takeaway
Explain the underlying mental model clearly, then support it with a concrete example and its trade-offs.