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import datetime as dt
from decimal import Decimal
from enum import Enum
from typing import Any, Dict, Generic, List, Optional, Tuple, TypeVar, Union
from uuid import UUID
import attrs
import pytest
from attrs import asdict, define
from polyfactory.factories.attrs_factory import AttrsFactory
pytestmark = [pytest.mark.attrs]
def test_is_supported_type() -> None:
@define
class Foo: ...
assert AttrsFactory.is_supported_type(Foo) is True
def test_is_supported_type_without_struct() -> None:
class Foo: ...
assert AttrsFactory.is_supported_type(Foo) is False
def test_with_basic_types_annotated() -> None:
class SampleEnum(Enum):
FOO = "foo"
BAR = "bar"
@define
class Foo:
bool_field: bool
int_field: int
float_field: float
str_field: str
bytse_field: bytes
bytearray_field: bytearray
tuple_field: Tuple[int, str]
tuple_with_variadic_args: Tuple[int, ...]
list_field: List[int]
dict_field: Dict[str, int]
datetime_field: dt.datetime
date_field: dt.date
time_field: dt.time
uuid_field: UUID
decimal_field: Decimal
enum_type: SampleEnum
any_type: Any
class FooFactory(AttrsFactory[Foo]):
__model__ = Foo
foo = FooFactory.build()
foo_dict = asdict(foo)
assert foo == Foo(**foo_dict)
def test_with_basic_types_attrs_field() -> None:
@define
class Foo:
bool_field = attrs.field(type=bool) # pyright: ignore
int_field = attrs.field(type=int) # pyright: ignore
float_field = attrs.field(type=float) # pyright: ignore
str_field = attrs.field(type=str) # pyright: ignore
bytes_field = attrs.field(type=bytes) # pyright: ignore
bytearray_field = attrs.field(type=bytearray) # pyright: ignore
tuple_field = attrs.field(type=Tuple[int, str]) # type: ignore
tuple_with_variadic_args = attrs.field(type=Tuple[int, ...]) # type: ignore
list_field = attrs.field(type=List[int]) # pyright: ignore
dict_field = attrs.field(type=Dict[int, str]) # pyright: ignore
datetime_field = attrs.field(type=dt.datetime) # pyright: ignore
date_field = attrs.field(type=dt.date) # pyright: ignore
time_field = attrs.field(type=dt.time) # pyright: ignore
uuid_field = attrs.field(type=UUID) # pyright: ignore
decimal_field = attrs.field(type=Decimal) # pyright: ignore
class FooFactory(AttrsFactory[Foo]):
__model__ = Foo
foo = FooFactory.build()
foo_dict = asdict(foo)
assert foo == Foo(**foo_dict)
def test_with_nested_attr_model() -> None:
@define
class Foo:
int_field: int
@define
class Bar:
int_field: int
foo_field: Foo
class BarFactory(AttrsFactory[Bar]):
__model__ = Bar
bar = BarFactory.build()
bar_dict = asdict(bar, recurse=False)
assert bar == Bar(**bar_dict)
def test_with_private_fields() -> None:
@define
class Foo:
_private: int
class FooFactory(AttrsFactory[Foo]):
__model__ = Foo
foo = FooFactory.build()
assert foo == Foo(foo._private)
def test_with_aliased_fields() -> None:
@define
class Foo:
aliased: int = attrs.field(alias="foo")
class FooFactory(AttrsFactory[Foo]):
__model__ = Foo
foo = FooFactory.build()
assert foo == Foo(foo.aliased)
def test_with_generics() -> None:
T = TypeVar("T")
@define
class Foo(Generic[T]):
x: T
class FooFactory(AttrsFactory[Foo[str]]):
__model__ = Foo
foo = FooFactory.build()
foo_dict = asdict(foo)
assert foo == Foo(**foo_dict)
def test_with_inheritance() -> None:
@define
class Parent:
int_field: int
@define
class Child(Parent):
str_field: str
class ChildFactory(AttrsFactory[Child]):
__model__ = Child
child = ChildFactory.build()
child_dict = asdict(child)
assert child == Child(**child_dict)
def test_with_stringified_annotations() -> None:
@define
class Foo:
int_field: "int"
class FooFactory(AttrsFactory[Foo]):
__model__ = Foo
foo = FooFactory.build()
assert isinstance(foo.int_field, int)
def test_with_init_false() -> None:
@define
class Foo:
foo: int = attrs.field(init=False)
class FooFactory(AttrsFactory[Foo]):
__model__ = Foo
assert FooFactory.build()
def test_use_default_with_callable_default() -> None:
@define
class Foo:
default_field: int = attrs.field(default=attrs.Factory(lambda: 10, takes_self=False))
class FooFactory(AttrsFactory[Foo]):
__model__ = Foo
__use_defaults__ = True
foo = FooFactory.build()
assert foo.default_field == 10
def test_use_default_with_non_callable_default() -> None:
@define
class Foo:
default_field: int = attrs.field(default=10)
class FooFactory(AttrsFactory[Foo]):
__model__ = Foo
__use_defaults__ = True
foo = FooFactory.build()
assert foo.default_field == 10
def test_union_types() -> None:
@define
class A:
a: Union[List[str], List[int]]
b: Union[str, List[int]]
c: List[Union[Tuple[int, int], Tuple[str, int]]]
AFactory = AttrsFactory.create_factory(A)
assert AFactory.build()
def test_collection_unions_with_models() -> None:
@define
class A:
a: int
@define
class B:
a: str
@define
class C:
a: Union[List[A], List[B]]
b: List[Union[A, B]]
CFactory = AttrsFactory.create_factory(C)
assert CFactory.build()
@pytest.mark.parametrize("allow_none", (True, False))
def test_optional_type(allow_none: bool) -> None:
@define
class A:
a: Union[str, None]
b: Optional[str]
c: Optional[Union[str, int, List[int]]]
class AFactory(AttrsFactory[A]):
__model__ = A
__allow_none_optionals__ = allow_none
assert AFactory.build()
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