Issue with oneOf validation

[lbpelegrini]

I have the following schema and value:

Schema: { "type":"object", "required":["my_date"], "properties":{ "my_date":{ "title":"My date", "type":"array", "minItems":1, "items":{ "type":"object", "required":["value"], "properties":{ "value":{ "title":"My date", "type":"string", "oneOf":[ { "type":"string", "format":"date" }, { "type":"string", "format":"date-time" } ] } } } } } }

Json: { "my_date":[ { "value": "2021-01-01" } ] }

Error: "'2021-01-01' is valid under each of {'type': 'string', 'format': 'date-time'}, {'type': 'string', 'format': 'date'}"

It looks like there's something wrong with the oneOf condition, since I ran some tests removing the format checkers, or making the formats equal (using "date" in both) and it always result in error when using more than one condition in oneOf.

I don't know if that's the expected behaviour, but a test with www.jsonschemavalidator.net resulted no errors.

Version: 4.20.0

[Julian]

Please include what code you are running.

[lbpelegrini]

class Validator:
    def execute(schema, json):
        validator = jsonschema.Draft202012Validator(schema)
        for error in sorted(validator.iter_errors(json), key=str):
            message = error.message

[Julian]

You haven't enabled format validation, so both your oneOf schemas always match any string (sounds like the other site you tried isn't fully compliant with the spec). See the FAQ in the docs for how to do so.

[Julian]

More specifically https://python-jsonschema.readthedocs.io/en/stable/validate/#validating-formats

[lbpelegrini]

That was exactly the problem, thank you so much for the support.

[Julian]

Glad to hear, my pleasure! (Sorry, this is obviously something that trips up everyone essentially, but it's spec'ed behavior...)