FrontendHaltTesting·Intermediate·Conceptual·1 min read
How do e2e tests fit into a deployment pipeline?
Short interview answer
Commonly as a gate on a staging or preview environment before promotion, and as a post-deploy smoke check against production. They run less frequently than unit and integration tests because of their cost, sometimes on a schedule or per release rather than per commit.
Key takeaway
Explain the underlying mental model clearly, then support it with a concrete example and its trade-offs.