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Test scenarios
01
E-commerce checkout
Sequential flow ending in a 2-way parallel write (payment queue + database).
02
URL shortener (cache-aside)
Parallel cache + primary-store lookup, then an async analytics event.
03
Ride-hailing dispatch
3-way parallel fan-out (driver, payment, notifications) followed by a trip write.
04
Video upload & transcoding
5-step chain where sequential edges resume after a parallel block.
05
Social feed fan-out
4-way parallel fan-out — stress test for simultaneous animated edges.
06
Auth (multiple scenarios)
One architecture, two scenarios — exercises the scenario picker.
07
Swimlane: services + Redis cache
Two services with their own DB, talking only through a shared Redis cache. 3 scenarios: cache hit, cache miss, and an error path.
08
E-commerce microservices (44 nodes)
Translated from a real Mermaid flowchart: client/edge/core/data/queue/worker/external/observability layers. 5 scenarios — browse, cart, checkout, async processing, observability.
09
Broken (error UI check)
References an undeclared node — confirms the compile-error panel renders.