Big Fixture

The repository includes a deliberately large fixture under testdata/big/. It is generated from Go structs, validated, serialized to JSON/YAML/HCL, and round-tripped back to canonical JSON in testdata/big/main.go.

The fixture covers:

• OpenAPI-bound operations selected by openapiOperationId and openapiOperationRef.
• Extension-owned operations using every uws.runtime.1.0 runtime selector.
• Sequence, parallel, switch, loop, await, and merge workflows.
• Triggers, routes, structural results, criteria, actions, components, and x-* extensions.
• HCL extension blocks and JSON/HCL dynamic-key round trips.

testdata/big/big.json is a generated test-runtime fixture, not a portable expression-grammar or conformance fixture. It deliberately retains UWS 1.1.0 while exercising implementation-defined $signals.*, $error.*, $context.*, $workflow.*, $workflows.*, and $selected.* sources, plus other test-runtime expression operators. The exact file is excluded from the core-grammar lint by a file-level legacy-fixture disposition; this does not make its expressions conforming, and it is not evidence that those implementation-defined expressions are portable. Core-only examples and conformance evidence must use syntax accepted by the document's declared-version specification.

Full fixture files:

• testdata/big/big.hcl
• testdata/big/big.json
• testdata/big/main.go

Feature pages include short excerpts from these files. The excerpts are intentionally incomplete; they show a feature in context without duplicating the full fixture.