pytest-httpchain-jsonref 0.7.0

JSON reference ($ref) support for pytest-httpchain

pytest-httpchain-jsonref

JSON reference ($ref) resolution with deep merging, used by pytest-httpchain.

This package loads a JSON document and resolves reference directives into a single in-memory structure. It supports external file references, JSON-pointer references within a document, and combined file.json#/pointer references. Sibling properties next to a directive are merged additively with the referenced content (keys added, lists concatenated, dicts merged recursively; a conflicting scalar raises rather than silently overriding). It also enforces a few safety constraints — a parent-traversal depth limit, an optional root directory that references may not escape, and circular-reference detection.

Role in the workspace

pytest-httpchain lets an HTTP test scenario be split across reusable JSON fragments. At collection time the plugin calls this package to inline every $ref / $include / $merge directive before the resulting document is validated against the models. It is published separately so the resolution logic can be reused and tested on its own; it is not intended to be used directly outside the plugin.

Usage

from pytest_httpchain_jsonref import load_json, ReferenceResolverError

try:
    data = load_json("scenario.json", max_parent_traversal_depth=3, root_path="tests")
except ReferenceResolverError as e:
    print(f"could not resolve references: {e}")

Three directives are accepted and behave identically — $include and $merge are preferred (they avoid clashing with editor JSON Schema validation), while $ref is the legacy spelling:

{
    "$include": "base.json#/definitions/login",
    "extra": "merged with the referenced content"
}

Links

• Documentation: https://aeresov.github.io/pytest-httpchain/
• Source and issues: https://github.com/aeresov/pytest-httpchain