Files
pydantic/tests/test_edge_cases.py
T
Yaraslau Zhylko 37855aa90c fix typo in NoneIsNotAllowedError message (#414)
* fix typo in `NoneIsNotAllowedError` message

* Add HISTORY.rst entry
2019-03-07 13:33:58 +00:00

870 lines
24 KiB
Python

import re
from decimal import Decimal
from enum import Enum
from typing import Any, Dict, List, Optional, Set, Tuple, Union
import pytest
from pydantic import (
BaseConfig,
BaseModel,
Extra,
NoneStrBytes,
StrBytes,
ValidationError,
constr,
errors,
validate_model,
)
def test_str_bytes():
class Model(BaseModel):
v: StrBytes = ...
m = Model(v='s')
assert m.v == 's'
assert '<Field(v type=typing.Union[str, bytes] required)>' == repr(m.fields['v'])
assert 'not_none_validator' in [v.__qualname__ for v in m.fields['v'].sub_fields[0].validators]
m = Model(v=b'b')
assert m.v == 'b'
with pytest.raises(ValidationError) as exc_info:
Model(v=None)
assert exc_info.value.errors() == [
{'loc': ('v',), 'msg': 'none is not an allowed value', 'type': 'type_error.none.not_allowed'},
{'loc': ('v',), 'msg': 'none is not an allowed value', 'type': 'type_error.none.not_allowed'},
]
def test_str_bytes_none():
class Model(BaseModel):
v: NoneStrBytes = ...
m = Model(v='s')
assert m.v == 's'
m = Model(v=b'b')
assert m.v == 'b'
m = Model(v=None)
assert m.v is None
def test_union_int_str():
class Model(BaseModel):
v: Union[int, str] = ...
m = Model(v=123)
assert m.v == 123
m = Model(v='123')
assert m.v == 123
m = Model(v=b'foobar')
assert m.v == 'foobar'
# here both validators work and it's impossible to work out which value "closer"
m = Model(v=12.2)
assert m.v == 12
with pytest.raises(ValidationError) as exc_info:
Model(v=None)
assert exc_info.value.errors() == [
{'loc': ('v',), 'msg': 'value is not a valid integer', 'type': 'type_error.integer'},
{'loc': ('v',), 'msg': 'none is not an allowed value', 'type': 'type_error.none.not_allowed'},
]
def test_union_priority():
class ModelOne(BaseModel):
v: Union[int, str] = ...
class ModelTwo(BaseModel):
v: Union[str, int] = ...
assert ModelOne(v='123').v == 123
assert ModelTwo(v='123').v == '123'
def test_typed_list():
class Model(BaseModel):
v: List[int] = ...
m = Model(v=[1, 2, '3'])
assert m.v == [1, 2, 3]
with pytest.raises(ValidationError) as exc_info:
Model(v=[1, 'x', 'y'])
assert exc_info.value.errors() == [
{'loc': ('v', 1), 'msg': 'value is not a valid integer', 'type': 'type_error.integer'},
{'loc': ('v', 2), 'msg': 'value is not a valid integer', 'type': 'type_error.integer'},
]
with pytest.raises(ValidationError) as exc_info:
Model(v=1)
assert exc_info.value.errors() == [{'loc': ('v',), 'msg': 'value is not a valid list', 'type': 'type_error.list'}]
def test_typed_set():
class Model(BaseModel):
v: Set[int] = ...
assert Model(v={1, 2, '3'}).v == {1, 2, 3}
assert Model(v=[1, 2, '3']).v == {1, 2, 3}
with pytest.raises(ValidationError) as exc_info:
Model(v=[1, 'x'])
assert exc_info.value.errors() == [
{'loc': ('v', 1), 'msg': 'value is not a valid integer', 'type': 'type_error.integer'}
]
def test_dict_dict():
class Model(BaseModel):
v: Dict[str, int] = ...
assert Model(v={'foo': 1}).dict() == {'v': {'foo': 1}}
@pytest.mark.parametrize(
'value,result',
[
({'a': 2, 'b': 4}, {'a': 2, 'b': 4}),
({1: '2', 'b': 4}, {'1': 2, 'b': 4}),
([('a', 2), ('b', 4)], {'a': 2, 'b': 4}),
],
)
def test_typed_dict(value, result):
class Model(BaseModel):
v: Dict[str, int] = ...
assert Model(v=value).v == result
@pytest.mark.parametrize(
'value,errors',
[
(1, [{'loc': ('v',), 'msg': 'value is not a valid dict', 'type': 'type_error.dict'}]),
({'a': 'b'}, [{'loc': ('v', 'a'), 'msg': 'value is not a valid integer', 'type': 'type_error.integer'}]),
([1, 2, 3], [{'loc': ('v',), 'msg': 'value is not a valid dict', 'type': 'type_error.dict'}]),
],
)
def test_typed_dict_error(value, errors):
class Model(BaseModel):
v: Dict[str, int] = ...
with pytest.raises(ValidationError) as exc_info:
Model(v=value)
assert exc_info.value.errors() == errors
def test_dict_key_error():
class Model(BaseModel):
v: Dict[int, int] = ...
assert Model(v={1: 2, '3': '4'}).v == {1: 2, 3: 4}
with pytest.raises(ValidationError) as exc_info:
Model(v={'foo': 2, '3': '4'})
assert exc_info.value.errors() == [
{'loc': ('v', '__key__'), 'msg': 'value is not a valid integer', 'type': 'type_error.integer'}
]
def test_tuple():
class Model(BaseModel):
v: Tuple[int, float, bool]
m = Model(v=[1.2, '2.2', 'true'])
assert m.v == (1, 2.2, True)
def test_tuple_more():
class Model(BaseModel):
simple_tuple: tuple = None
tuple_of_different_types: Tuple[int, float, str, bool] = None
m = Model(simple_tuple=[1, 2, 3, 4], tuple_of_different_types=[1, 2, 3, 4])
assert m.dict() == {'simple_tuple': (1, 2, 3, 4), 'tuple_of_different_types': (1, 2.0, '3', True)}
def test_tuple_length_error():
class Model(BaseModel):
v: Tuple[int, float, bool]
with pytest.raises(ValidationError) as exc_info:
Model(v=[1, 2])
assert exc_info.value.errors() == [
{
'loc': ('v',),
'msg': 'wrong tuple length 2, expected 3',
'type': 'value_error.tuple.length',
'ctx': {'actual_length': 2, 'expected_length': 3},
}
]
def test_tuple_invalid():
class Model(BaseModel):
v: Tuple[int, float, bool]
with pytest.raises(ValidationError) as exc_info:
Model(v='xxx')
assert exc_info.value.errors() == [{'loc': ('v',), 'msg': 'value is not a valid tuple', 'type': 'type_error.tuple'}]
def test_tuple_value_error():
class Model(BaseModel):
v: Tuple[int, float, Decimal]
with pytest.raises(ValidationError) as exc_info:
Model(v=['x', 'y', 'x'])
assert exc_info.value.errors() == [
{'loc': ('v', 0), 'msg': 'value is not a valid integer', 'type': 'type_error.integer'},
{'loc': ('v', 1), 'msg': 'value is not a valid float', 'type': 'type_error.float'},
{'loc': ('v', 2), 'msg': 'value is not a valid decimal', 'type': 'type_error.decimal'},
]
def test_recursive_list():
class SubModel(BaseModel):
name: str = ...
count: int = None
class Model(BaseModel):
v: List[SubModel] = []
m = Model(v=[])
assert m.v == []
m = Model(v=[{'name': 'testing', 'count': 4}])
assert "<Model v=[<SubModel name='testing' count=4>]>" == repr(m)
assert m.v[0].name == 'testing'
assert m.v[0].count == 4
assert m.dict() == {'v': [{'count': 4, 'name': 'testing'}]}
with pytest.raises(ValidationError) as exc_info:
Model(v=['x'])
assert exc_info.value.errors() == [{'loc': ('v', 0), 'msg': 'value is not a valid dict', 'type': 'type_error.dict'}]
def test_recursive_list_error():
class SubModel(BaseModel):
name: str = ...
count: int = None
class Model(BaseModel):
v: List[SubModel] = []
with pytest.raises(ValidationError) as exc_info:
Model(v=[{}])
assert exc_info.value.errors() == [
{'loc': ('v', 0, 'name'), 'msg': 'field required', 'type': 'value_error.missing'}
]
def test_list_unions():
class Model(BaseModel):
v: List[Union[int, str]] = ...
assert Model(v=[123, '456', 'foobar']).v == [123, 456, 'foobar']
with pytest.raises(ValidationError) as exc_info:
Model(v=[1, 2, None])
assert exc_info.value.errors() == [
{'loc': ('v', 2), 'msg': 'value is not a valid integer', 'type': 'type_error.integer'},
{'loc': ('v', 2), 'msg': 'none is not an allowed value', 'type': 'type_error.none.not_allowed'},
]
def test_recursive_lists():
class Model(BaseModel):
v: List[List[Union[int, float]]] = ...
assert Model(v=[[1, 2], [3, '4', '4.1']]).v == [[1, 2], [3, 4, 4.1]]
assert Model.__fields__['v'].sub_fields[0].name == '_v'
assert len(Model.__fields__['v'].sub_fields) == 1
assert Model.__fields__['v'].sub_fields[0].sub_fields[0].name == '__v'
assert len(Model.__fields__['v'].sub_fields[0].sub_fields) == 1
assert Model.__fields__['v'].sub_fields[0].sub_fields[0].sub_fields[1].name == '__v_float'
assert len(Model.__fields__['v'].sub_fields[0].sub_fields[0].sub_fields) == 2
class StrEnum(str, Enum):
a = 'a10'
b = 'b10'
def test_str_enum():
class Model(BaseModel):
v: StrEnum = ...
assert Model(v='a10').v is StrEnum.a
with pytest.raises(ValidationError):
Model(v='different')
def test_any_dict():
class Model(BaseModel):
v: Dict[int, Any] = ...
assert Model(v={1: 'foobar'}).dict() == {'v': {1: 'foobar'}}
assert Model(v={123: 456}).dict() == {'v': {123: 456}}
assert Model(v={2: [1, 2, 3]}).dict() == {'v': {2: [1, 2, 3]}}
def test_infer_alias():
class Model(BaseModel):
a = 'foobar'
class Config:
fields = {'a': '_a'}
assert Model(_a='different').a == 'different'
assert repr(Model.__fields__['a']) == "<Field(a type=str default='foobar' alias=_a)>"
def test_alias_error():
class Model(BaseModel):
a = 123
class Config:
fields = {'a': '_a'}
assert Model(_a='123').a == 123
with pytest.raises(ValidationError) as exc_info:
Model(_a='foo')
assert exc_info.value.errors() == [
{'loc': ('_a',), 'msg': 'value is not a valid integer', 'type': 'type_error.integer'}
]
def test_annotation_config():
class Model(BaseModel):
b: float
a: int = 10
_c: str
class Config:
fields = {'b': 'foobar'}
assert list(Model.__fields__.keys()) == ['b', 'a']
assert [f.alias for f in Model.__fields__.values()] == ['foobar', 'a']
assert Model(foobar='123').b == 123.0
def test_success_values_include():
class Model(BaseModel):
a: int = 1
b: int = 2
c: int = 3
m = Model()
assert m.dict() == {'a': 1, 'b': 2, 'c': 3}
assert m.dict(include={'a'}) == {'a': 1}
assert m.dict(exclude={'a'}) == {'b': 2, 'c': 3}
assert m.dict(include={'a', 'b'}, exclude={'a'}) == {'b': 2}
def test_include_exclude_default():
class Model(BaseModel):
a: int
b: int
c: int = 3
d: int = 4
m = Model(a=1, b=2)
assert m.dict() == {'a': 1, 'b': 2, 'c': 3, 'd': 4}
assert m.__fields_set__ == {'a', 'b'}
assert m.dict(skip_defaults=True) == {'a': 1, 'b': 2}
assert m.dict(include={'a'}, skip_defaults=True) == {'a': 1}
assert m.dict(include={'c'}, skip_defaults=True) == {}
assert m.dict(exclude={'a'}, skip_defaults=True) == {'b': 2}
assert m.dict(exclude={'c'}, skip_defaults=True) == {'a': 1, 'b': 2}
assert m.dict(include={'a', 'b', 'c'}, exclude={'b'}, skip_defaults=True) == {'a': 1}
assert m.dict(include={'a', 'b', 'c'}, exclude={'a', 'c'}, skip_defaults=True) == {'b': 2}
def test_field_set_ignore_extra():
class Model(BaseModel):
a: int
b: int
c: int = 3
class Config:
extra = Extra.ignore
m = Model(a=1, b=2)
assert m.dict() == {'a': 1, 'b': 2, 'c': 3}
assert m.__fields_set__ == {'a', 'b'}
assert m.dict(skip_defaults=True) == {'a': 1, 'b': 2}
m2 = Model(a=1, b=2, d=4)
assert m2.dict() == {'a': 1, 'b': 2, 'c': 3}
assert m2.__fields_set__ == {'a', 'b'}
assert m2.dict(skip_defaults=True) == {'a': 1, 'b': 2}
def test_field_set_allow_extra():
class Model(BaseModel):
a: int
b: int
c: int = 3
class Config:
extra = Extra.allow
m = Model(a=1, b=2)
assert m.dict() == {'a': 1, 'b': 2, 'c': 3}
assert m.__fields_set__ == {'a', 'b'}
assert m.dict(skip_defaults=True) == {'a': 1, 'b': 2}
m2 = Model(a=1, b=2, d=4)
assert m2.dict() == {'a': 1, 'b': 2, 'c': 3, 'd': 4}
assert m2.__fields_set__ == {'a', 'b', 'd'}
assert m2.dict(skip_defaults=True) == {'a': 1, 'b': 2, 'd': 4}
def test_field_set_field_name():
class Model(BaseModel):
a: int
field_set: int
b: int = 3
assert Model(a=1, field_set=2).dict() == {'a': 1, 'field_set': 2, 'b': 3}
assert Model(a=1, field_set=2).dict(skip_defaults=True) == {'a': 1, 'field_set': 2}
assert Model.construct(dict(a=1, field_set=3), {'a', 'field_set'}).dict() == {'a': 1, 'field_set': 3}
def test_values_order():
class Model(BaseModel):
a: int = 1
b: int = 2
c: int = 3
m = Model(c=30, b=20, a=10)
assert list(m) == [('a', 10), ('b', 20), ('c', 30)]
def test_inheritance():
class Foo(BaseModel):
a: float = ...
class Bar(Foo):
x: float = 12.3
a = 123
assert Bar().dict() == {'x': 12.3, 'a': 123}
def test_invalid_type():
with pytest.raises(RuntimeError) as exc_info:
class Model(BaseModel):
x: 43 = 123
assert "error checking inheritance of 43 (type: int)" in str(exc_info)
@pytest.mark.parametrize(
'value,expected',
[
('a string', 'a string'),
(b'some bytes', 'some bytes'),
(bytearray('foobar', encoding='utf8'), 'foobar'),
(123, '123'),
(123.45, '123.45'),
(Decimal('12.45'), '12.45'),
(True, 'True'),
(False, 'False'),
(StrEnum.a, 'a10'),
],
)
def test_valid_string_types(value, expected):
class Model(BaseModel):
v: str
assert Model(v=value).v == expected
@pytest.mark.parametrize(
'value,errors',
[
({'foo': 'bar'}, [{'loc': ('v',), 'msg': 'str type expected', 'type': 'type_error.str'}]),
([1, 2, 3], [{'loc': ('v',), 'msg': 'str type expected', 'type': 'type_error.str'}]),
],
)
def test_invalid_string_types(value, errors):
class Model(BaseModel):
v: str
with pytest.raises(ValidationError) as exc_info:
Model(v=value)
assert exc_info.value.errors() == errors
def test_inheritance_config():
class Parent(BaseModel):
a: int
class Child(Parent):
b: str
class Config:
fields = {'a': 'aaa', 'b': 'bbb'}
m = Child(aaa=1, bbb='s')
assert str(m) == "Child a=1 b='s'"
def test_partial_inheritance_config():
class Parent(BaseModel):
a: int
class Config:
fields = {'a': 'aaa'}
class Child(Parent):
b: str
class Config:
fields = {'b': 'bbb'}
m = Child(aaa=1, bbb='s')
assert str(m) == "Child a=1 b='s'"
def test_string_none():
class Model(BaseModel):
a: constr(min_length=20, max_length=1000) = ...
class Config:
extra = Extra.ignore
with pytest.raises(ValidationError) as exc_info:
Model(a=None)
assert exc_info.value.errors() == [
{'loc': ('a',), 'msg': 'none is not an allowed value', 'type': 'type_error.none.not_allowed'}
]
def test_alias_camel_case():
class Model(BaseModel):
one_thing: int
another_thing: int
class Config(BaseConfig):
@classmethod
def get_field_schema(cls, name):
field_config = super().get_field_schema(name) or {}
if 'alias' not in field_config:
field_config['alias'] = re.sub(r'(?:^|_)([a-z])', lambda m: m.group(1).upper(), name)
return field_config
v = Model(**{'OneThing': 123, 'AnotherThing': '321'})
assert v.one_thing == 123
assert v.another_thing == 321
assert v == {'one_thing': 123, 'another_thing': 321}
def test_get_field_schema_inherit():
class ModelOne(BaseModel):
class Config(BaseConfig):
@classmethod
def get_field_schema(cls, name):
field_config = super().get_field_schema(name) or {}
if 'alias' not in field_config:
field_config['alias'] = re.sub(r'_([a-z])', lambda m: m.group(1).upper(), name)
return field_config
class ModelTwo(ModelOne):
one_thing: int
another_thing: int
third_thing: int
class Config:
fields = {'third_thing': 'Banana'}
v = ModelTwo(**{'oneThing': 123, 'anotherThing': '321', 'Banana': 1})
assert v == {'one_thing': 123, 'another_thing': 321, 'third_thing': 1}
def test_return_errors_ok():
class Model(BaseModel):
foo: int
bar: List[int]
assert validate_model(Model, {'foo': '123', 'bar': (1, 2, 3)}) == {'foo': 123, 'bar': [1, 2, 3]}
d, e = validate_model(Model, {'foo': '123', 'bar': (1, 2, 3)}, False)
assert d == {'foo': 123, 'bar': [1, 2, 3]}
assert e is None
def test_return_errors_error():
class Model(BaseModel):
foo: int
bar: List[int]
d, e = validate_model(Model, {'foo': '123', 'bar': (1, 2, 'x')}, False)
assert d == {'foo': 123}
assert e.errors() == [{'loc': ('bar', 2), 'msg': 'value is not a valid integer', 'type': 'type_error.integer'}]
d, e = validate_model(Model, {'bar': (1, 2, 3)}, False)
assert d == {'bar': [1, 2, 3]}
assert e.errors() == [{'loc': ('foo',), 'msg': 'field required', 'type': 'value_error.missing'}]
def test_optional_required():
class Model(BaseModel):
bar: Optional[int]
assert Model(bar=123).dict() == {'bar': 123}
assert Model().dict() == {'bar': None}
assert Model(bar=None).dict() == {'bar': None}
def test_invalid_validator():
class InvalidValidator:
@classmethod
def __get_validators__(cls):
yield cls.has_wrong_arguments
@classmethod
def has_wrong_arguments(cls, value, bar):
pass
with pytest.raises(errors.ConfigError) as exc_info:
class InvalidValidatorModel(BaseModel):
x: InvalidValidator = ...
assert exc_info.value.args[0].startswith('Invalid signature for validator')
def test_unable_to_infer():
with pytest.raises(errors.ConfigError) as exc_info:
class InvalidDefinitionModel(BaseModel):
x = None
assert exc_info.value.args[0] == 'unable to infer type for attribute "x"'
def test_get_validator():
class CustomClass:
@classmethod
def get_validators(cls):
yield cls.validate
@classmethod
def validate(cls, v):
return v * 2
with pytest.warns(DeprecationWarning):
class Model(BaseModel):
x: CustomClass
assert Model(x=42).x == 84
def test_multiple_errors():
class Model(BaseModel):
a: Union[None, int, float, Decimal]
with pytest.raises(ValidationError) as exc_info:
Model(a='foobar')
assert exc_info.value.errors() == [
{'loc': ('a',), 'msg': 'value is not none', 'type': 'type_error.none.allowed'},
{'loc': ('a',), 'msg': 'value is not a valid integer', 'type': 'type_error.integer'},
{'loc': ('a',), 'msg': 'value is not a valid float', 'type': 'type_error.float'},
{'loc': ('a',), 'msg': 'value is not a valid decimal', 'type': 'type_error.decimal'},
]
assert Model().a is None
assert Model(a=None).a is None
def test_pop_by_alias():
class Model(BaseModel):
last_updated_by: Optional[str] = None
class Config:
extra = Extra.forbid
allow_population_by_alias = True
fields = {'last_updated_by': 'lastUpdatedBy'}
assert Model(lastUpdatedBy='foo').dict() == {'last_updated_by': 'foo'}
assert Model(last_updated_by='foo').dict() == {'last_updated_by': 'foo'}
with pytest.raises(ValidationError) as exc_info:
Model(lastUpdatedBy='foo', last_updated_by='bar')
assert exc_info.value.errors() == [
{'loc': ('last_updated_by',), 'msg': 'extra fields not permitted', 'type': 'value_error.extra'}
]
def test_validate_all():
class Model(BaseModel):
a: int
b: int
class Config:
validate_all = True
with pytest.raises(ValidationError) as exc_info:
Model()
assert exc_info.value.errors() == [
{'loc': ('a',), 'msg': 'field required', 'type': 'value_error.missing'},
{'loc': ('b',), 'msg': 'field required', 'type': 'value_error.missing'},
]
def test_ignore_extra_true():
with pytest.warns(DeprecationWarning, match='Model: "ignore_extra" is deprecated and replaced by "extra"'):
class Model(BaseModel):
foo: int
class Config:
ignore_extra = True
assert Model.__config__.extra is Extra.ignore
def test_ignore_extra_false():
with pytest.warns(DeprecationWarning, match='Model: "ignore_extra" is deprecated and replaced by "extra"'):
class Model(BaseModel):
foo: int
class Config:
ignore_extra = False
assert Model.__config__.extra is Extra.forbid
def test_allow_extra():
with pytest.warns(DeprecationWarning, match='Model: "allow_extra" is deprecated and replaced by "extra"'):
class Model(BaseModel):
foo: int
class Config:
allow_extra = True
assert Model.__config__.extra is Extra.allow
def test_ignore_extra_allow_extra():
with pytest.warns(DeprecationWarning, match='Model: "ignore_extra" and "allow_extra" are deprecated and'):
class Model(BaseModel):
foo: int
class Config:
ignore_extra = False
allow_extra = False
assert Model.__config__.extra is Extra.forbid
def test_force_extra():
class Model(BaseModel):
foo: int
class Config:
extra = 'ignore'
assert Model.__config__.extra is Extra.ignore
def test_illegal_extra_value():
with pytest.raises(ValueError, match='is not a valid value for "extra"'):
class Model(BaseModel):
foo: int
class Config:
extra = 'foo'
def test_multiple_inheritance_config():
class Parent(BaseModel):
class Config:
allow_mutation = False
extra = Extra.forbid
class Mixin(BaseModel):
class Config:
use_enum_values = True
class Child(Mixin, Parent):
class Config:
allow_population_by_alias = True
assert BaseModel.__config__.allow_mutation is True
assert BaseModel.__config__.allow_population_by_alias is False
assert BaseModel.__config__.extra is Extra.ignore
assert BaseModel.__config__.use_enum_values is False
assert Parent.__config__.allow_mutation is False
assert Parent.__config__.allow_population_by_alias is False
assert Parent.__config__.extra is Extra.forbid
assert Parent.__config__.use_enum_values is False
assert Mixin.__config__.allow_mutation is True
assert Mixin.__config__.allow_population_by_alias is False
assert Mixin.__config__.extra is Extra.ignore
assert Mixin.__config__.use_enum_values is True
assert Child.__config__.allow_mutation is False
assert Child.__config__.allow_population_by_alias is True
assert Child.__config__.extra is Extra.forbid
assert Child.__config__.use_enum_values is True
def test_multiple_inheritance_config_legacy_extra():
with pytest.warns(DeprecationWarning, match='Parent: "ignore_extra" and "allow_extra" are deprecated and'):
class Parent(BaseModel):
class Config:
allow_extra = False
ignore_extra = False
class Mixin(BaseModel):
pass
class Child(Mixin, Parent):
pass
assert BaseModel.__config__.extra is Extra.ignore
assert Parent.__config__.extra is Extra.forbid
assert Mixin.__config__.extra is Extra.ignore
assert Child.__config__.extra is Extra.forbid
def test_submodel_different_type():
class Foo(BaseModel):
a: int
class Bar(BaseModel):
b: int
class Spam(BaseModel):
c: Foo
assert Spam(c={'a': '123'}).dict() == {'c': {'a': 123}}
with pytest.raises(ValidationError):
Spam(c={'b': '123'})
assert Spam(c=Foo(a='123')).dict() == {'c': {'a': 123}}
with pytest.raises(ValidationError):
Spam(c=Bar(b='123'))