Task storage guarantees

Verification Boundary

This suite checks database guarantees independently of a browser or remote API.

What This Suite Proves

Database cases check supported task values, routing and closing stamps, local references, external and workflow-origin uniqueness and related-record deletion retention.

The registered scenario bindings identify the assertion contributions this executable supplies. A compound scenario can require several suites.

What It Does Not Prove

It does not establish deployed Lambda transport, live Platform policy or end-user browser behavior.

Real Dependencies and Test Doubles

The migrated PostgreSQL schema and application or query-reader role execute against isolated fixtures. Database constraints, views and workspace policies are real.

Must Not Be Doubled

Constraints, triggers, views, workspace policies and the transaction that makes a refusal observable remain real.