validate_operation fails for TSV on Python 3.9.5

[bnavigator]

======================================================================= test session starts ========================================================================
platform linux -- Python 3.9.5, pytest-6.2.2, py-1.10.0, pluggy-0.13.1 -- /usr/bin/python3.9
cachedir: .pytest_cache
rootdir: /home/abuild/rpmbuild/BUILD/flex-6.14.1, configfile: pytest.ini
plugins: Faker-8.1.4, httpbin-1.0.0, pythonpath-0.7.3
collected 1459 items    
...
tests/validation/request/test_request_parameter_validation.py::test_request_parameter_array_extraction[tsv-1\t2\t3] FAILED                                   [ 84%]
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> traceback >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

format_ = 'tsv', value = '1\t2\t3'

    @pytest.mark.parametrize(
        'format_,value',
        (
            (CSV, '1,2,3'),
            (SSV, '1 2 3'),
            (TSV, '1\t2\t3'),
            (PIPES, '1|2|3'),
        ),
    )
    def test_request_parameter_array_extraction(format_, value):
        schema = SchemaFactory(
            paths={
                '/get/': {
                    'get': {
                        'responses': {'200': {'description': "Success"}},
                        'parameters': [
                            {
                                'name': 'id',
                                'in': QUERY,
                                'type': ARRAY,
                                'collectionFormat': format_,
                                'minItems': 3,
                                'maxItems': 3,
                                'items': {
                                    'type': INTEGER,
                                    'minimum': 1,
                                    'maximum': 3,
                                },
                            },
                        ],
                    },
                },
            },
        )
    
        request = RequestFactory(url='http://www.example.com/get/?id={}'.format(value))
    
>       validate_request(
            request=request,
            schema=schema,
        )

tests/validation/request/test_request_parameter_validation.py:187: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

request = <flex.http.Request object at 0x7ff63b40d5e0>
schema = {'info': {'title': 'Test API', 'version': '0.0.1'}, 'paths': {'/get/': {'get': {'parameters': [{'collectionFormat': 't...: 'query', 'items': {...}, 'maxItems': 3, ...}], 'responses': {'200': {'description': 'Success'}}}}}, 'swagger': '2.0'}

    def validate_request(request, schema):
        """
        Request validation does the following steps.
    
           1. validate that the path matches one of the defined paths in the schema.
           2. validate that the request method conforms to a supported methods for the given path.
           3. validate that the request parameters conform to the parameter
              definitions for the operation definition.
        """
        with ErrorDict() as errors:
            # 1
            try:
                api_path = validate_path_to_api_path(
                    path=request.path,
                    context=schema,
                    **schema
                )
            except ValidationError as err:
                errors['path'].add_error(err.detail)
                return  # this causes an exception to be raised since errors is no longer falsy.
    
            path_definition = schema['paths'][api_path] or {}
    
            if not path_definition:
                # TODO: is it valid to not have a definition for a path?
                return
    
            # 2
            try:
                operation_definition = validate_request_method_to_operation(
                    request_method=request.method,
                    path_definition=path_definition,
                )
            except ValidationError as err:
                errors['method'].add_error(err.detail)
                return
    
            if operation_definition is None:
                # TODO: is this compliant with swagger, can path operations have a null
                # definition?
                return
    
            # 3
            operation_validators = construct_operation_validators(
                api_path=api_path,
                path_definition=path_definition,
                operation_definition=operation_definition,
                context=schema,
            )
            try:
                validate_operation(request, operation_validators, context=schema)
            except ValidationError as err:
>               errors['method'].add_error(err.detail)

flex/validation/request.py:65: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = ErrorDict(<class 'flex.exceptions.ErrorList'>, {'method': [ErrorDict(<class 'flex.exceptions.ErrorList'>, {'parameters...rrorDict(<class 'flex.exceptions.ErrorList'>, {'maximum': ['123 must be less than or equal to than 3']})]})]})]})]})]})
type_ = None, value = None, traceback = None

    def __exit__(self, type_, value, traceback):
        if any((type_, value, traceback)):
            if not issubclass(type_, ValidationError):
                return False
        if self:
>           self.raise_()

flex/exceptions.py:22: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = ErrorDict(<class 'flex.exceptions.ErrorList'>, {'method': [ErrorDict(<class 'flex.exceptions.ErrorList'>, {'parameters...rrorDict(<class 'flex.exceptions.ErrorList'>, {'maximum': ['123 must be less than or equal to than 3']})]})]})]})]})]})

    def raise_(self):
>       raise ValidationError(self)
E       flex.exceptions.ValidationError: 'method':
E           - 'parameters':
E               - 'query':
E                   - 'id':
E                       - 'minItems':
E                           - 'Array must have at least 3 items. It had only had 1 items.'
E                       - 'items':
E                           - 'maximum':
E                               - '123 must be less than or equal to than 3'

flex/exceptions.py:25: ValidationError

Python 3.8.10 is fine.

[mcepl]

It fails to me even with 3.8.11.