JSON Structure Python Samples & Tools

This folder contains sample Python implementations and associated pytest-based test suites targeting the JSON Structure Core specification.

json_structure_schema_validator.py
A command-line tool that validates JSON schemas according to the JSON Structure specification. It supports all extension specifications when enabled and also allows validating extension metadata schemas that introduce new $-prefixed keywords in property names (when enabled via --metaschema).
json_structure_instance_validator.py
A validator for JSON document instances against JSON Structure schemas.
It supports all core constructs including abstract types, $extends, $offers/$uses, conditional composition, and additional validation addins.

Test Suites

test_json_schema_validator_core.py
Test cases ensuring full code coverage of the schema validator, verifying valid and invalid schema cases.
test_json_validator_core.py
Test cases for the instance validator across a variety of JSON types, compound types, conditional rules, and addin constraints.
test_import.py
A dedicated test for JSON Structure Import support, using temporary files and an import map to simulate external schema resolution.

Schema Validation:
Run the schema validator via the command line:
```
python json_structure_schema_validator.py [--metaschema] [--allowimport] [--importmap URI=filename ...] <path_to_json_file>
```
- Use --metaschema to allow $ in property names.
- Use --allowimport and --importmap to enable external imports.

Instance Validation:
Validate an instance file against a schema by running:

python json_structure_instance_validator.py <schema_file> <instance_file>