pytest_schema fails to validate Enum

Question

Given this json response:

api_schema = schema({
    "sts": "OK",
    "values": [
        {
            "mark": And(str, lambda s: len(s) > 1),
            "desc": And(str, lambda s: len(s) > 1),
            "observer": Enum(["testObs", "test"])
            "created": And(int, lambda s: len(str(s)) >= 5),
        }
    ]
})

rsp = {
   "sts":"OK",
   "values":[
      {
         "mark":"test",
         "created":123213213,
         "desc":"Ok",
         "observer":"testObs",
      }
   ]
}

print(api_schema.validate(data=rsp))

Raises:

schema.SchemaError: Key 'values' error:
Or({'mark': And(<class 'str'>, <function <lambda> at 0x0000010A9B6A04A0>), 'desc': And(<class 'str'>, <function <lambda> at 0x0000010A9B858E00>), 'observer': Enum(['testObs', 'BY_CARRIER', 'BY_ALL_DEVICES', 'BY_ALL_USERS', 'BY_USER_ID', 'BY_DEVICE_ID']), 'created': And(<class 'int'>, <function <lambda> at 0x0000010A9B859C60>)}) did not validate {'mark': 'test', 'created': 123213213, 'desc': 'Ok', 'observer': 'testObs'}
Key 'observer' error:
Enum(['testObs', 'BY_CARRIER', 'BY_ALL_DEVICES', 'BY_ALL_USERS', 'BY_USER_ID', 'BY_DEVICE_ID']) did not validate 'testObs'
'testObs' should be instance of 'list'

But it dosent make sense "testObs" is indeed part of "observer": Enum(["testObs"...

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Answer 1

It seems as if the "Full example" in their Readme is outdated. This PR shows that instead of passing your Enum values as a list, you should pass them as arguments:

"observer": Enum("testObs", "test"),

Putting it back in your example it now works as expected:

from pytest_schema import schema, Enum, And, Regex, Optional, Or

api_schema = schema({
    "sts": "OK",
    "values": [
        {
            "mark": And(str, lambda s: len(s) > 1),
            "desc": And(str, lambda s: len(s) > 1),
            "observer": Enum("testObs", "test"),
            "created": And(int, lambda s: len(str(s)) >= 5),
        }
    ]
})

rsp = {
   "sts":"OK",
   "values":[
      {
         "mark":"test",
         "created":123213213,
         "desc":"Ok",
         "observer":"testObs",
      }
   ]
}

print(api_schema.validate(data=rsp))

=>

❯ python python_test.py
{'sts': 'OK', 'values': [{'mark': 'test', 'created': 123213213, 'desc': 'Ok', 'observer': 'testObs'}]}