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✎ Editing: test_customization.py ← Back

# -*- coding: utf-8 -*-

from pytest import mark

import cerberus
from cerberus.tests import assert_fail, assert_success
from cerberus.tests.conftest import sample_schema

def test_contextual_data_preservation():
    class InheritedValidator(cerberus.Validator):
        def __init__(self, *args, **kwargs):
            if 'working_dir' in kwargs:
                self.working_dir = kwargs['working_dir']
            super(InheritedValidator, self).__init__(*args, **kwargs)

def _validate_type_test(self, value):
            if self.working_dir:
                return True

assert 'test' in InheritedValidator.types
    v = InheritedValidator(
        {'test': {'type': 'list', 'schema': {'type': 'test'}}}, working_dir='/tmp'
    )
    assert_success({'test': ['foo']}, validator=v)

def test_docstring_parsing():
    class CustomValidator(cerberus.Validator):
        def _validate_foo(self, argument, field, value):
            """{'type': 'zap'}"""
            pass

def _validate_bar(self, value):
            """
            Test the barreness of a value.

The rule's arguments are validated against this schema:
                {'type': 'boolean'}
            """
            pass

assert 'foo' in CustomValidator.validation_rules
    assert 'bar' in CustomValidator.validation_rules

# TODO remove 'validator' as rule parameter with the next major release
@mark.parametrize('rule', ('check_with', 'validator'))
def test_check_with_method(rule):
    # https://github.com/pyeve/cerberus/issues/265
    class MyValidator(cerberus.Validator):
        def _check_with_oddity(self, field, value):
            if not value & 1:
                self._error(field, "Must be an odd number")

v = MyValidator(schema={'amount': {rule: 'oddity'}})
    assert_success(document={'amount': 1}, validator=v)
    assert_fail(
        document={'amount': 2},
        validator=v,
        error=('amount', (), cerberus.errors.CUSTOM, None, ('Must be an odd number',)),
    )

# TODO remove test with the next major release
@mark.parametrize('rule', ('check_with', 'validator'))
def test_validator_method(rule):
    class MyValidator(cerberus.Validator):
        def _validator_oddity(self, field, value):
            if not value & 1:
                self._error(field, "Must be an odd number")

def test_schema_validation_can_be_disabled_in_schema_setter():
    class NonvalidatingValidator(cerberus.Validator):
        """
        Skips schema validation to speed up initialization
        """

@cerberus.Validator.schema.setter
        def schema(self, schema):
            if schema is None:
                self._schema = None
            elif self.is_child:
                self._schema = schema
            elif isinstance(schema, cerberus.schema.DefinitionSchema):
                self._schema = schema
            else:
                self._schema = cerberus.schema.UnvalidatedSchema(schema)

v = NonvalidatingValidator(schema=sample_schema)
    assert v.validate(document={'an_integer': 1})
    assert not v.validate(document={'an_integer': 'a'})

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