Golden examples

Every implementation's derivation reproduces the golden examples exactly: the same status, reasons, grade, Premium flag and core code. The files are published beside the schema at /schema/v1.0/golden/, one JSON record per example.

The seven examples of §12.5

§12.5

Edge cases in the set

The published set adds edge cases to the seven above, so that the corners of the rules are pinned down. They include:

• A against A0, the difference between Like New and Like New · Premium;
• a declared battery (B80D), and a charge-hold pass (CP) and fail (CF);
• the sealed exemptions of New Sealed (FX, NA, N);
• a carrier-locked device, which keeps its grade and discloses the lock;
• one example for each status;
• the lost/stolen rules: a declared clear, unchecked (NOT GRADED, reason lost_stolen_unchecked), and a reported check that outranks a declaration;
• supplier-mapped grades (mapped_from, ~src:supplier), including one that still ends as a status.

§11.1 · §8.2 · §6.1

Using the files

1. Validate each record against the schema.
2. Run your derivation on its axes and identity.
3. Compare your result with the file's result, field by field.

A mismatch is a bug in the implementation, or an error in the golden file: report the second through Propose a change (type "Erratum").