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"""
An unused schema registry should not cause slower validation.
"Unused" here means one where no reference resolution is occurring anyhow.
See https://github.com/python-jsonschema/jsonschema/issues/1088.
"""
from pyperf import Runner
from referencing import Registry
from referencing.jsonschema import DRAFT201909
from jsonschema import Draft201909Validator
registry = Registry().with_resource(
"urn:example:foo",
DRAFT201909.create_resource({})
)
schema = {"$ref": "https://json-schema.org/draft/2019-09/schema"}
instance = {"maxLength": 4}
no_registry = Draft201909Validator(schema)
with_useless_registry = Draft201909Validator(schema, registry=registry)
if __name__ == "__main__":
runner = Runner()
runner.bench_func(
"no registry",
lambda: no_registry.is_valid(instance),
)
runner.bench_func(
"useless registry",
lambda: with_useless_registry.is_valid(instance),
)