contract.py

Executes contract tests against a live API.

Includes: - HTTP request execution - GET / POST / PUT / DELETE test logic - Path parameter substitution (substitute_path_params) for all HTTP methods - Schema-based request/response comparison - Centralized test result logging

schema.py

Handles OpenAPI schema resolution for both 3.0.x and 3.1.x specs.

Includes: - resolve_ref: follows $ref JSON Pointer strings within the spec document - resolve_schema: fully resolves a schema by following $ref pointers (with sibling keyword merging) and flattening allOf compositions - primary_type: extracts the primary non-null type from a multi-type array (type: ["string", "null"])