mirror of
https://github.com/kennethreitz/pydantic.git
synced 2026-06-05 23:00:18 +00:00
Samuel Colvin
6e5a1363cc
* fix(validate-assignment): do not validate extra fields when `vaidate_assignment` is on * Update history * Fix `value` vs. `value_` * Add tests for `value` vs `value_` case * uprev * Fix generic required (#742) * Fix required fields on GenericModel * lint * version up * __post_init__ with inheritance, fix #739 (#740) * Fix custom Schema on GenericModel fields (#754) * Fix custom Schema on GenericModel fields * Add PR# * uprev * Fix error messages for Literal types with multiple allowed values (#770) * Fix error messages for Literal types with multiple allowed values * Incorporate feedback * update history
909 lines
24 KiB
Python
909 lines
24 KiB
Python
from datetime import datetime
|
|
from typing import Dict, List, Optional, Tuple
|
|
|
|
import pytest
|
|
|
|
from pydantic import BaseModel, ConfigError, Extra, ValidationError, errors, validator
|
|
from pydantic.class_validators import make_generic_validator, root_validator
|
|
|
|
|
|
def test_simple():
|
|
class Model(BaseModel):
|
|
a: str
|
|
|
|
@validator('a')
|
|
def check_a(cls, v):
|
|
if 'foobar' not in v:
|
|
raise ValueError('"foobar" not found in a')
|
|
return v
|
|
|
|
assert Model(a='this is foobar good').a == 'this is foobar good'
|
|
|
|
with pytest.raises(ValidationError) as exc_info:
|
|
Model(a='snap')
|
|
assert exc_info.value.errors() == [{'loc': ('a',), 'msg': '"foobar" not found in a', 'type': 'value_error'}]
|
|
|
|
|
|
def test_int_validation():
|
|
class Model(BaseModel):
|
|
a: int
|
|
|
|
with pytest.raises(ValidationError) as exc_info:
|
|
Model(a='snap')
|
|
assert exc_info.value.errors() == [
|
|
{'loc': ('a',), 'msg': 'value is not a valid integer', 'type': 'type_error.integer'}
|
|
]
|
|
assert Model(a=3).a == 3
|
|
assert Model(a=True).a == 1
|
|
assert Model(a=False).a == 0
|
|
assert Model(a=4.5).a == 4
|
|
|
|
|
|
def test_frozenset_validation():
|
|
class Model(BaseModel):
|
|
a: frozenset
|
|
|
|
with pytest.raises(ValidationError) as exc_info:
|
|
Model(a='snap')
|
|
assert exc_info.value.errors() == [
|
|
{'loc': ('a',), 'msg': 'value is not a valid frozenset', 'type': 'type_error.frozenset'}
|
|
]
|
|
assert Model(a={1, 2, 3}).a == frozenset({1, 2, 3})
|
|
assert Model(a=frozenset({1, 2, 3})).a == frozenset({1, 2, 3})
|
|
assert Model(a=[4, 5]).a == frozenset({4, 5})
|
|
assert Model(a=(6,)).a == frozenset({6})
|
|
|
|
|
|
def test_validate_whole():
|
|
class Model(BaseModel):
|
|
a: List[int]
|
|
|
|
@validator('a', pre=True)
|
|
def check_a1(cls, v):
|
|
v.append('123')
|
|
return v
|
|
|
|
@validator('a')
|
|
def check_a2(cls, v):
|
|
v.append(456)
|
|
return v
|
|
|
|
assert Model(a=[1, 2]).a == [1, 2, 123, 456]
|
|
|
|
|
|
def test_validate_kwargs():
|
|
class Model(BaseModel):
|
|
b: int
|
|
a: List[int]
|
|
|
|
@validator('a', each_item=True)
|
|
def check_a1(cls, v, values, **kwargs):
|
|
return v + values['b']
|
|
|
|
assert Model(a=[1, 2], b=6).a == [7, 8]
|
|
|
|
|
|
def test_validate_pre_error():
|
|
calls = []
|
|
|
|
class Model(BaseModel):
|
|
a: List[int]
|
|
|
|
@validator('a', pre=True)
|
|
def check_a1(cls, v):
|
|
calls.append(f'check_a1 {v}')
|
|
if 1 in v:
|
|
raise ValueError('a1 broken')
|
|
v[0] += 1
|
|
return v
|
|
|
|
@validator('a')
|
|
def check_a2(cls, v):
|
|
calls.append(f'check_a2 {v}')
|
|
if 10 in v:
|
|
raise ValueError('a2 broken')
|
|
return v
|
|
|
|
assert Model(a=[3, 8]).a == [4, 8]
|
|
assert calls == ['check_a1 [3, 8]', 'check_a2 [4, 8]']
|
|
|
|
calls = []
|
|
with pytest.raises(ValidationError) as exc_info:
|
|
Model(a=[1, 3])
|
|
assert exc_info.value.errors() == [{'loc': ('a',), 'msg': 'a1 broken', 'type': 'value_error'}]
|
|
assert calls == ['check_a1 [1, 3]']
|
|
|
|
calls = []
|
|
with pytest.raises(ValidationError) as exc_info:
|
|
Model(a=[5, 10])
|
|
assert exc_info.value.errors() == [{'loc': ('a',), 'msg': 'a2 broken', 'type': 'value_error'}]
|
|
assert calls == ['check_a1 [5, 10]', 'check_a2 [6, 10]']
|
|
|
|
|
|
class ValidateAssignmentModel(BaseModel):
|
|
a: int = 4
|
|
b: str = ...
|
|
c: int = 0
|
|
|
|
@validator('b')
|
|
def b_length(cls, v, values, **kwargs):
|
|
if 'a' in values and len(v) < values['a']:
|
|
raise ValueError('b too short')
|
|
return v
|
|
|
|
@validator('c')
|
|
def double_c(cls, v):
|
|
return v * 2
|
|
|
|
class Config:
|
|
validate_assignment = True
|
|
extra = Extra.allow
|
|
|
|
|
|
def test_validating_assignment_ok():
|
|
p = ValidateAssignmentModel(b='hello')
|
|
assert p.b == 'hello'
|
|
|
|
|
|
def test_validating_assignment_fail():
|
|
with pytest.raises(ValidationError):
|
|
ValidateAssignmentModel(a=10, b='hello')
|
|
|
|
p = ValidateAssignmentModel(b='hello')
|
|
with pytest.raises(ValidationError):
|
|
p.b = 'x'
|
|
|
|
|
|
def test_validating_assignment_value_change():
|
|
p = ValidateAssignmentModel(b='hello', c=2)
|
|
assert p.c == 4
|
|
|
|
p = ValidateAssignmentModel(b='hello')
|
|
assert p.c == 0
|
|
p.c = 3
|
|
assert p.c == 6
|
|
|
|
|
|
def test_validating_assignment_extra():
|
|
p = ValidateAssignmentModel(b='hello', extra_field=1.23)
|
|
assert p.extra_field == 1.23
|
|
|
|
p = ValidateAssignmentModel(b='hello')
|
|
p.extra_field = 1.23
|
|
assert p.extra_field == 1.23
|
|
p.extra_field = 'bye'
|
|
assert p.extra_field == 'bye'
|
|
|
|
|
|
def test_validating_assignment_dict():
|
|
with pytest.raises(ValidationError) as exc_info:
|
|
ValidateAssignmentModel(a='x', b='xx')
|
|
assert exc_info.value.errors() == [
|
|
{'loc': ('a',), 'msg': 'value is not a valid integer', 'type': 'type_error.integer'}
|
|
]
|
|
|
|
|
|
def test_validate_multiple():
|
|
# also test TypeError
|
|
class Model(BaseModel):
|
|
a: str
|
|
b: str
|
|
|
|
@validator('a', 'b')
|
|
def check_a_and_b(cls, v, field, **kwargs):
|
|
if len(v) < 4:
|
|
raise TypeError(f'{field.alias} is too short')
|
|
return v + 'x'
|
|
|
|
assert Model(a='1234', b='5678').dict() == {'a': '1234x', 'b': '5678x'}
|
|
|
|
with pytest.raises(ValidationError) as exc_info:
|
|
Model(a='x', b='x')
|
|
assert exc_info.value.errors() == [
|
|
{'loc': ('a',), 'msg': 'a is too short', 'type': 'type_error'},
|
|
{'loc': ('b',), 'msg': 'b is too short', 'type': 'type_error'},
|
|
]
|
|
|
|
|
|
def test_classmethod():
|
|
class Model(BaseModel):
|
|
a: str
|
|
|
|
@validator('a')
|
|
def check_a(cls, v):
|
|
assert cls is Model
|
|
return v
|
|
|
|
m = Model(a='this is foobar good')
|
|
assert m.a == 'this is foobar good'
|
|
m.check_a('x')
|
|
|
|
|
|
def test_duplicates():
|
|
with pytest.raises(errors.ConfigError) as exc_info:
|
|
|
|
class Model(BaseModel):
|
|
a: str
|
|
b: str
|
|
|
|
@validator('a')
|
|
def duplicate_name(cls, v):
|
|
return v
|
|
|
|
@validator('b') # noqa
|
|
def duplicate_name(cls, v): # noqa
|
|
return v
|
|
|
|
assert str(exc_info.value) == (
|
|
'duplicate validator function ' '"tests.test_validators.test_duplicates.<locals>.Model.duplicate_name"'
|
|
)
|
|
|
|
|
|
def test_use_bare():
|
|
with pytest.raises(errors.ConfigError) as exc_info:
|
|
|
|
class Model(BaseModel):
|
|
a: str
|
|
|
|
@validator
|
|
def checker(cls, v):
|
|
return v
|
|
|
|
assert 'validators should be used with fields' in str(exc_info.value)
|
|
|
|
|
|
def test_use_no_fields():
|
|
with pytest.raises(errors.ConfigError) as exc_info:
|
|
|
|
class Model(BaseModel):
|
|
a: str
|
|
|
|
@validator()
|
|
def checker(cls, v):
|
|
return v
|
|
|
|
assert 'validator with no fields specified' in str(exc_info.value)
|
|
|
|
|
|
def test_validate_always():
|
|
check_calls = 0
|
|
|
|
class Model(BaseModel):
|
|
a: str = None
|
|
|
|
@validator('a', pre=True, always=True)
|
|
def check_a(cls, v):
|
|
nonlocal check_calls
|
|
check_calls += 1
|
|
return v or 'xxx'
|
|
|
|
assert Model().a == 'xxx'
|
|
assert check_calls == 1
|
|
assert Model(a='y').a == 'y'
|
|
assert check_calls == 2
|
|
|
|
|
|
def test_validate_not_always():
|
|
check_calls = 0
|
|
|
|
class Model(BaseModel):
|
|
a: str = None
|
|
|
|
@validator('a', pre=True)
|
|
def check_a(cls, v):
|
|
nonlocal check_calls
|
|
check_calls += 1
|
|
return v or 'xxx'
|
|
|
|
assert Model().a is None
|
|
assert check_calls == 0
|
|
assert Model(a='y').a == 'y'
|
|
assert check_calls == 1
|
|
|
|
|
|
def test_wildcard_validators():
|
|
calls = []
|
|
|
|
class Model(BaseModel):
|
|
a: str
|
|
b: int
|
|
|
|
@validator('a')
|
|
def check_a(cls, v, field, **kwargs):
|
|
calls.append(('check_a', v, field.name))
|
|
return v
|
|
|
|
@validator('*')
|
|
def check_all(cls, v, field, **kwargs):
|
|
calls.append(('check_all', v, field.name))
|
|
return v
|
|
|
|
assert Model(a='abc', b='123').dict() == dict(a='abc', b=123)
|
|
assert calls == [('check_a', 'abc', 'a'), ('check_all', 'abc', 'a'), ('check_all', 123, 'b')]
|
|
|
|
|
|
def test_wildcard_validator_error():
|
|
class Model(BaseModel):
|
|
a: str
|
|
b: str
|
|
|
|
@validator('*')
|
|
def check_all(cls, v, field, **kwargs):
|
|
if 'foobar' not in v:
|
|
raise ValueError('"foobar" not found in a')
|
|
return v
|
|
|
|
assert Model(a='foobar a', b='foobar b').b == 'foobar b'
|
|
|
|
with pytest.raises(ValidationError) as exc_info:
|
|
Model(a='snap')
|
|
assert exc_info.value.errors() == [
|
|
{'loc': ('a',), 'msg': '"foobar" not found in a', 'type': 'value_error'},
|
|
{'loc': ('b',), 'msg': 'field required', 'type': 'value_error.missing'},
|
|
]
|
|
|
|
|
|
def test_invalid_field():
|
|
with pytest.raises(errors.ConfigError) as exc_info:
|
|
|
|
class Model(BaseModel):
|
|
a: str
|
|
|
|
@validator('b')
|
|
def check_b(cls, v):
|
|
return v
|
|
|
|
assert str(exc_info.value) == (
|
|
"Validators defined with incorrect fields: check_b " # noqa: Q000
|
|
"(use check_fields=False if you're inheriting from the model and intended this)"
|
|
)
|
|
|
|
|
|
def test_validate_child():
|
|
class Parent(BaseModel):
|
|
a: str
|
|
|
|
class Child(Parent):
|
|
@validator('a')
|
|
def check_a(cls, v):
|
|
if 'foobar' not in v:
|
|
raise ValueError('"foobar" not found in a')
|
|
return v
|
|
|
|
assert Parent(a='this is not a child').a == 'this is not a child'
|
|
assert Child(a='this is foobar good').a == 'this is foobar good'
|
|
with pytest.raises(ValidationError):
|
|
Child(a='snap')
|
|
|
|
|
|
def test_validate_child_extra():
|
|
class Parent(BaseModel):
|
|
a: str
|
|
|
|
@validator('a')
|
|
def check_a_one(cls, v):
|
|
if 'foobar' not in v:
|
|
raise ValueError('"foobar" not found in a')
|
|
return v
|
|
|
|
class Child(Parent):
|
|
@validator('a')
|
|
def check_a_two(cls, v):
|
|
return v.upper()
|
|
|
|
assert Parent(a='this is foobar good').a == 'this is foobar good'
|
|
assert Child(a='this is foobar good').a == 'THIS IS FOOBAR GOOD'
|
|
with pytest.raises(ValidationError):
|
|
Child(a='snap')
|
|
|
|
|
|
def test_validate_child_all():
|
|
class Parent(BaseModel):
|
|
a: str
|
|
|
|
class Child(Parent):
|
|
@validator('*')
|
|
def check_a(cls, v):
|
|
if 'foobar' not in v:
|
|
raise ValueError('"foobar" not found in a')
|
|
return v
|
|
|
|
assert Parent(a='this is not a child').a == 'this is not a child'
|
|
assert Child(a='this is foobar good').a == 'this is foobar good'
|
|
with pytest.raises(ValidationError):
|
|
Child(a='snap')
|
|
|
|
|
|
def test_validate_parent():
|
|
class Parent(BaseModel):
|
|
a: str
|
|
|
|
@validator('a')
|
|
def check_a(cls, v):
|
|
if 'foobar' not in v:
|
|
raise ValueError('"foobar" not found in a')
|
|
return v
|
|
|
|
class Child(Parent):
|
|
pass
|
|
|
|
assert Parent(a='this is foobar good').a == 'this is foobar good'
|
|
assert Child(a='this is foobar good').a == 'this is foobar good'
|
|
with pytest.raises(ValidationError):
|
|
Parent(a='snap')
|
|
with pytest.raises(ValidationError):
|
|
Child(a='snap')
|
|
|
|
|
|
def test_validate_parent_all():
|
|
class Parent(BaseModel):
|
|
a: str
|
|
|
|
@validator('*')
|
|
def check_a(cls, v):
|
|
if 'foobar' not in v:
|
|
raise ValueError('"foobar" not found in a')
|
|
return v
|
|
|
|
class Child(Parent):
|
|
pass
|
|
|
|
assert Parent(a='this is foobar good').a == 'this is foobar good'
|
|
assert Child(a='this is foobar good').a == 'this is foobar good'
|
|
with pytest.raises(ValidationError):
|
|
Parent(a='snap')
|
|
with pytest.raises(ValidationError):
|
|
Child(a='snap')
|
|
|
|
|
|
def test_inheritance_keep():
|
|
class Parent(BaseModel):
|
|
a: int
|
|
|
|
@validator('a')
|
|
def add_to_a(cls, v):
|
|
return v + 1
|
|
|
|
class Child(Parent):
|
|
pass
|
|
|
|
assert Child(a=0).a == 1
|
|
|
|
|
|
def test_inheritance_replace():
|
|
class Parent(BaseModel):
|
|
a: int
|
|
|
|
@validator('a')
|
|
def add_to_a(cls, v):
|
|
return v + 1
|
|
|
|
class Child(Parent):
|
|
@validator('a')
|
|
def add_to_a(cls, v):
|
|
return v + 5
|
|
|
|
assert Child(a=0).a == 5
|
|
|
|
|
|
def test_inheritance_new():
|
|
class Parent(BaseModel):
|
|
a: int
|
|
|
|
@validator('a')
|
|
def add_one_to_a(cls, v):
|
|
return v + 1
|
|
|
|
class Child(Parent):
|
|
@validator('a')
|
|
def add_five_to_a(cls, v):
|
|
return v + 5
|
|
|
|
assert Child(a=0).a == 6
|
|
|
|
|
|
def test_validation_each_item():
|
|
class Model(BaseModel):
|
|
foobar: Dict[int, int]
|
|
|
|
@validator('foobar', each_item=True)
|
|
def check_foobar(cls, v):
|
|
return v + 1
|
|
|
|
assert Model(foobar={1: 1}).foobar == {1: 2}
|
|
|
|
|
|
def test_key_validation():
|
|
class Model(BaseModel):
|
|
foobar: Dict[int, int]
|
|
|
|
@validator('foobar')
|
|
def check_foobar(cls, value):
|
|
return {k + 1: v + 1 for k, v in value.items()}
|
|
|
|
assert Model(foobar={1: 1}).foobar == {2: 2}
|
|
|
|
|
|
def test_validator_always_optional():
|
|
check_calls = 0
|
|
|
|
class Model(BaseModel):
|
|
a: Optional[str] = None
|
|
|
|
@validator('a', pre=True, always=True)
|
|
def check_a(cls, v):
|
|
nonlocal check_calls
|
|
check_calls += 1
|
|
return v or 'default value'
|
|
|
|
assert Model(a='y').a == 'y'
|
|
assert check_calls == 1
|
|
assert Model().a == 'default value'
|
|
assert check_calls == 2
|
|
|
|
|
|
def test_validator_always_pre():
|
|
check_calls = 0
|
|
|
|
class Model(BaseModel):
|
|
a: str = None
|
|
|
|
@validator('a', always=True, pre=True)
|
|
def check_a(cls, v):
|
|
nonlocal check_calls
|
|
check_calls += 1
|
|
return v or 'default value'
|
|
|
|
assert Model(a='y').a == 'y'
|
|
assert Model().a == 'default value'
|
|
assert check_calls == 2
|
|
|
|
|
|
def test_validator_always_post():
|
|
class Model(BaseModel):
|
|
a: str = None
|
|
|
|
@validator('a', always=True)
|
|
def check_a(cls, v):
|
|
return v or 'default value'
|
|
|
|
assert Model(a='y').a == 'y'
|
|
assert Model().a == 'default value'
|
|
|
|
|
|
def test_validator_always_post_optional():
|
|
class Model(BaseModel):
|
|
a: Optional[str] = None
|
|
|
|
@validator('a', always=True, pre=True)
|
|
def check_a(cls, v):
|
|
return v or 'default value'
|
|
|
|
assert Model(a='y').a == 'y'
|
|
assert Model().a == 'default value'
|
|
|
|
|
|
def test_datetime_validator():
|
|
check_calls = 0
|
|
|
|
class Model(BaseModel):
|
|
d: datetime = None
|
|
|
|
@validator('d', pre=True, always=True)
|
|
def check_d(cls, v):
|
|
nonlocal check_calls
|
|
check_calls += 1
|
|
return v or datetime(2032, 1, 1)
|
|
|
|
assert Model(d='2023-01-01T00:00:00').d == datetime(2023, 1, 1)
|
|
assert check_calls == 1
|
|
assert Model().d == datetime(2032, 1, 1)
|
|
assert check_calls == 2
|
|
assert Model(d=datetime(2023, 1, 1)).d == datetime(2023, 1, 1)
|
|
assert check_calls == 3
|
|
|
|
|
|
def test_pre_called_once():
|
|
check_calls = 0
|
|
|
|
class Model(BaseModel):
|
|
a: Tuple[int, int, int]
|
|
|
|
@validator('a', pre=True)
|
|
def check_a(cls, v):
|
|
nonlocal check_calls
|
|
check_calls += 1
|
|
return v
|
|
|
|
assert Model(a=['1', '2', '3']).a == (1, 2, 3)
|
|
assert check_calls == 1
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
'fields,result',
|
|
[
|
|
(['val'], '_v_'),
|
|
(['foobar'], '_v_'),
|
|
(['val', 'field'], '_v_,_field_'),
|
|
(['val', 'config'], '_v_,_config_'),
|
|
(['val', 'values'], '_v_,_values_'),
|
|
(['val', 'field', 'config'], '_v_,_field_,_config_'),
|
|
(['val', 'field', 'values'], '_v_,_field_,_values_'),
|
|
(['val', 'config', 'values'], '_v_,_config_,_values_'),
|
|
(['val', 'field', 'values', 'config'], '_v_,_field_,_values_,_config_'),
|
|
(['cls', 'val'], '_cls_,_v_'),
|
|
(['cls', 'foobar'], '_cls_,_v_'),
|
|
(['cls', 'val', 'field'], '_cls_,_v_,_field_'),
|
|
(['cls', 'val', 'config'], '_cls_,_v_,_config_'),
|
|
(['cls', 'val', 'values'], '_cls_,_v_,_values_'),
|
|
(['cls', 'val', 'field', 'config'], '_cls_,_v_,_field_,_config_'),
|
|
(['cls', 'val', 'field', 'values'], '_cls_,_v_,_field_,_values_'),
|
|
(['cls', 'val', 'config', 'values'], '_cls_,_v_,_config_,_values_'),
|
|
(['cls', 'val', 'field', 'values', 'config'], '_cls_,_v_,_field_,_values_,_config_'),
|
|
],
|
|
)
|
|
def test_make_generic_validator(fields, result):
|
|
exec(f"""def testing_function({', '.join(fields)}): return {' + "," + '.join(fields)}""")
|
|
func = locals()['testing_function']
|
|
validator = make_generic_validator(func)
|
|
assert validator.__qualname__ == 'testing_function'
|
|
assert validator.__name__ == 'testing_function'
|
|
# args: cls, v, values, field, config
|
|
assert validator('_cls_', '_v_', '_values_', '_field_', '_config_') == result
|
|
|
|
|
|
def test_make_generic_validator_kwargs():
|
|
def test_validator(v, **kwargs):
|
|
return ', '.join(f'{k}: {v}' for k, v in kwargs.items())
|
|
|
|
validator = make_generic_validator(test_validator)
|
|
assert validator.__name__ == 'test_validator'
|
|
assert validator('_cls_', '_v_', '_vs_', '_f_', '_c_') == 'values: _vs_, field: _f_, config: _c_'
|
|
|
|
|
|
def test_make_generic_validator_invalid():
|
|
def test_validator(v, foobar):
|
|
return foobar
|
|
|
|
with pytest.raises(ConfigError) as exc_info:
|
|
make_generic_validator(test_validator)
|
|
assert ': (v, foobar), should be: (value, values, config, field)' in str(exc_info.value)
|
|
|
|
|
|
def test_make_generic_validator_cls_kwargs():
|
|
def test_validator(cls, v, **kwargs):
|
|
return ', '.join(f'{k}: {v}' for k, v in kwargs.items())
|
|
|
|
validator = make_generic_validator(test_validator)
|
|
assert validator.__name__ == 'test_validator'
|
|
assert validator('_cls_', '_v_', '_vs_', '_f_', '_c_') == 'values: _vs_, field: _f_, config: _c_'
|
|
|
|
|
|
def test_make_generic_validator_cls_invalid():
|
|
def test_validator(cls, v, foobar):
|
|
return foobar
|
|
|
|
with pytest.raises(ConfigError) as exc_info:
|
|
make_generic_validator(test_validator)
|
|
assert ': (cls, v, foobar), should be: (cls, value, values, config, field)' in str(exc_info.value)
|
|
|
|
|
|
def test_make_generic_validator_self():
|
|
def test_validator(self, v):
|
|
return v
|
|
|
|
with pytest.raises(ConfigError) as exc_info:
|
|
make_generic_validator(test_validator)
|
|
assert ': (self, v), "self" not permitted as first argument, should be: (cls, value' in str(exc_info.value)
|
|
|
|
|
|
def test_assert_raises_validation_error():
|
|
class Model(BaseModel):
|
|
a: str
|
|
|
|
@validator('a')
|
|
def check_a(cls, v):
|
|
assert v == 'a', 'invalid a'
|
|
return v
|
|
|
|
Model(a='a')
|
|
|
|
with pytest.raises(ValidationError) as exc_info:
|
|
Model(a='snap')
|
|
injected_by_pytest = "\nassert 'snap' == 'a'\n - snap\n + a"
|
|
assert exc_info.value.errors() == [
|
|
{'loc': ('a',), 'msg': f'invalid a{injected_by_pytest}', 'type': 'assertion_error'}
|
|
]
|
|
|
|
|
|
def test_optional_validator():
|
|
val_calls = []
|
|
|
|
class Model(BaseModel):
|
|
something: Optional[str]
|
|
|
|
@validator('something')
|
|
def check_something(cls, v):
|
|
val_calls.append(v)
|
|
return v
|
|
|
|
assert Model().dict() == {'something': None}
|
|
assert Model(something=None).dict() == {'something': None}
|
|
assert Model(something='hello').dict() == {'something': 'hello'}
|
|
assert val_calls == [None, 'hello']
|
|
|
|
|
|
def test_whole():
|
|
with pytest.warns(DeprecationWarning, match='The "whole" keyword argument is deprecated'):
|
|
|
|
class Model(BaseModel):
|
|
x: List[int]
|
|
|
|
@validator('x', whole=True)
|
|
def check_something(cls, v):
|
|
return v
|
|
|
|
|
|
def test_root_validator():
|
|
root_val_values = []
|
|
|
|
class Model(BaseModel):
|
|
a: int = 1
|
|
b: str
|
|
|
|
@validator('b')
|
|
def repeat_b(cls, v):
|
|
return v * 2
|
|
|
|
@root_validator
|
|
def root_validator(cls, values):
|
|
root_val_values.append(values)
|
|
if 'snap' in values.get('b', ''):
|
|
raise ValueError('foobar')
|
|
return dict(values, b='changed')
|
|
|
|
assert Model(a='123', b='bar').dict() == {'a': 123, 'b': 'changed'}
|
|
|
|
with pytest.raises(ValidationError) as exc_info:
|
|
Model(b='snap dragon')
|
|
assert exc_info.value.errors() == [{'loc': ('__root__',), 'msg': 'foobar', 'type': 'value_error'}]
|
|
|
|
with pytest.raises(ValidationError) as exc_info:
|
|
Model(a='broken', b='bar')
|
|
assert exc_info.value.errors() == [
|
|
{'loc': ('a',), 'msg': 'value is not a valid integer', 'type': 'type_error.integer'}
|
|
]
|
|
|
|
assert root_val_values == [{'a': 123, 'b': 'barbar'}, {'a': 1, 'b': 'snap dragonsnap dragon'}, {'b': 'barbar'}]
|
|
|
|
|
|
def test_root_validator_pre():
|
|
root_val_values = []
|
|
|
|
class Model(BaseModel):
|
|
a: int = 1
|
|
b: str
|
|
|
|
@validator('b')
|
|
def repeat_b(cls, v):
|
|
return v * 2
|
|
|
|
@root_validator(pre=True)
|
|
def root_validator(cls, values):
|
|
root_val_values.append(values)
|
|
if 'snap' in values.get('b', ''):
|
|
raise ValueError('foobar')
|
|
return {'a': 42, 'b': 'changed'}
|
|
|
|
assert Model(a='123', b='bar').dict() == {'a': 42, 'b': 'changedchanged'}
|
|
|
|
with pytest.raises(ValidationError) as exc_info:
|
|
Model(b='snap dragon')
|
|
|
|
assert root_val_values == [{'a': '123', 'b': 'bar'}, {'b': 'snap dragon'}]
|
|
assert exc_info.value.errors() == [{'loc': ('__root__',), 'msg': 'foobar', 'type': 'value_error'}]
|
|
|
|
|
|
def test_root_validator_repeat():
|
|
with pytest.raises(errors.ConfigError, match='duplicate validator function'):
|
|
|
|
class Model(BaseModel):
|
|
a: int = 1
|
|
|
|
@root_validator
|
|
def root_validator_repeated(cls, values):
|
|
return values
|
|
|
|
@root_validator # noqa: F811
|
|
def root_validator_repeated(cls, values):
|
|
return values
|
|
|
|
|
|
def test_root_validator_repeat2():
|
|
with pytest.raises(errors.ConfigError, match='duplicate validator function'):
|
|
|
|
class Model(BaseModel):
|
|
a: int = 1
|
|
|
|
@validator('a')
|
|
def repeat_validator(cls, v):
|
|
return v
|
|
|
|
@root_validator(pre=True) # noqa: F811
|
|
def repeat_validator(cls, values):
|
|
return values
|
|
|
|
|
|
def test_root_validator_self():
|
|
with pytest.raises(
|
|
errors.ConfigError, match=r'Invalid signature for root validator root_validator: \(self, values\)'
|
|
):
|
|
|
|
class Model(BaseModel):
|
|
a: int = 1
|
|
|
|
@root_validator
|
|
def root_validator(self, values):
|
|
return values
|
|
|
|
|
|
def test_root_validator_extra():
|
|
with pytest.raises(errors.ConfigError) as exc_info:
|
|
|
|
class Model(BaseModel):
|
|
a: int = 1
|
|
|
|
@root_validator
|
|
def root_validator(cls, values, another):
|
|
return values
|
|
|
|
assert str(exc_info.value) == (
|
|
'Invalid signature for root validator root_validator: (cls, values, another), should be: (cls, values).'
|
|
)
|
|
|
|
|
|
def test_root_validator_types():
|
|
root_val_values = None
|
|
|
|
class Model(BaseModel):
|
|
a: int = 1
|
|
b: str
|
|
|
|
@root_validator
|
|
def root_validator(cls, values):
|
|
nonlocal root_val_values
|
|
root_val_values = cls, values
|
|
return values
|
|
|
|
class Config:
|
|
extra = Extra.allow
|
|
|
|
assert Model(b='bar', c='wobble').dict() == {'a': 1, 'b': 'bar', 'c': 'wobble'}
|
|
|
|
assert root_val_values == (Model, {'a': 1, 'b': 'bar', 'c': 'wobble'})
|
|
|
|
|
|
def test_root_validator_inheritance():
|
|
calls = []
|
|
|
|
class Parent(BaseModel):
|
|
pass
|
|
|
|
@root_validator
|
|
def root_validator_parent(cls, values):
|
|
calls.append(f'parent validator: {values}')
|
|
return {'extra1': 1, **values}
|
|
|
|
class Child(Parent):
|
|
a: int
|
|
|
|
@root_validator
|
|
def root_validator_child(cls, values):
|
|
calls.append(f'child validator: {values}')
|
|
return {'extra2': 2, **values}
|
|
|
|
assert len(Child.__post_root_validators__) == 2
|
|
assert len(Child.__pre_root_validators__) == 0
|
|
assert Child(a=123).dict() == {'extra2': 2, 'extra1': 1, 'a': 123}
|
|
assert calls == ["parent validator: {'a': 123}", "child validator: {'extra1': 1, 'a': 123}"]
|