pytest-probatio 0.3.0

Use a probatio schema as a pytest assertion matcher

pytest-probatio

Use a probatio schema as a pytest assertion matcher. A schema reads as the expected shape, and a mismatch is explained by probatio's path-precise errors instead of a bare assert.

from pytest_probatio import Exact, Partial
from probatio import Port


def test_response(response):
    # Exact: extra keys make it unequal.
    assert response == Exact({"name": str, "port": Port()})

    # Partial: extra keys are allowed.
    assert response == Partial({"name": str})
    assert Exact({"name": str}) <= response

When the data does not match, the failure lists each error by its path:

data does not match the probatio schema (==):
  data['port']: expected a port number between 1 and 65535

Install it alongside pytest; the plugin registers itself:

pip install pytest-probatio

This package lives in the probatio monorepo but ships separately, so the core probatio library stays dependency-free.