@rawsql-ts/test-evidence-core

Shared semantic core for test evidence.

Scope

• Pure model and transform functions only
• No filesystem access
• No markdown rendering

Schema Versions

• PREVIEW_SCHEMA_VERSION: supported major version for PreviewJson
• DIFF_SCHEMA_VERSION: major version emitted for DiffJson

Both are major integers. Unsupported major versions fail with deterministic typed errors.

Compatibility Policy

• Pre-release (0.x): breaking changes are allowed while boundaries are being finalized
• Post-release: breaking schema changes require a major version bump

Deterministic Error Contract

DiffCoreErrorCode:

• INVALID_INPUT
• UNSUPPORTED_SCHEMA_VERSION

Validation failures are deterministic, including stable error shape fields (code, path, schemaVersion, details).

Pure Intermediate Model

buildSpecificationModel(previewJson) returns a pure intermediate model.

• Returns structured data only
• No markdown strings
• No IO
• No side effects

Function Case Contract

Function test cases in PreviewJson.testCaseCatalogs[].cases[] use explicit outcomes:

• expected: "success" | "throws" | "errorResult"
• expected: "throws" requires error: { name, message, match }
• non-throw outcomes require output
• optional metadata: tags: string[], focus: string