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from dataclasses import dataclass
from enum import Enum
from typing import (
Any,
Callable,
DefaultDict,
Deque,
Dict,
FrozenSet,
Generic,
Iterable,
List,
Literal,
Optional,
Sequence,
Set,
Tuple,
TypeVar,
Union,
)
import pytest
from pydantic import BaseModel
from polyfactory.exceptions import ParameterException
from polyfactory.factories import DataclassFactory
from polyfactory.factories.pydantic_factory import ModelFactory
from tests.models import Person
def test_handles_complex_typing() -> None:
class MyModel(BaseModel):
nested_dict: Dict[str, Dict[Union[int, str], Dict[Any, List[Dict[str, str]]]]]
dict_str_any: Dict[str, Any]
nested_list: List[List[List[Dict[str, List[Any]]]]]
sequence_literal: Sequence[Literal[1, 2, 3]]
sequence_dict: Sequence[Dict[str, Any]]
iterable_float: Iterable[float]
tuple_ellipsis: Tuple[int, ...]
tuple_str_str: Tuple[str, str]
default_dict: DefaultDict[str, List[Dict[str, int]]]
deque: Deque[List[Dict[str, int]]]
set_union: Set[Union[str, int]]
frozen_set: FrozenSet[str]
plain_list: List[Any]
plain_set: Set[Any]
plain_dict: Dict[str, Any]
class MyFactory(ModelFactory):
__model__ = MyModel
result = MyFactory.build()
assert result.nested_dict
assert result.dict_str_any
assert result.nested_list
assert result.sequence_dict
assert result.iterable_float
assert result.tuple_ellipsis
assert result.tuple_str_str
assert result.default_dict
assert result.deque
assert result.set_union
assert result.frozen_set
assert result.plain_list
assert result.plain_set
assert result.plain_dict
def test_handles_complex_typing_with_embedded_models() -> None:
class MyModel(BaseModel):
person_dict: Dict[str, Person]
person_list: List[Person]
class MyFactory(ModelFactory):
__model__ = MyModel
result = MyFactory.build()
assert result.person_dict
assert result.person_list[0].pets
def test_raises_for_user_defined_types() -> None:
class MyClass:
def __init__(self, value: int) -> None:
self.value = value
class MyModel(BaseModel):
my_class_field: Dict[str, MyClass]
class Config:
arbitrary_types_allowed = True
class MyFactory(ModelFactory):
__model__ = MyModel
with pytest.raises(ParameterException):
MyFactory.build()
def test_randomizes_optional_returns() -> None:
"""this is a flaky test - because it depends on randomness, hence it's been re-ran multiple times."""
class MyModel(BaseModel):
optional_1: Optional[List[str]]
optional_2: Optional[Dict[str, str]]
optional_3: Optional[Set[str]]
optional_4: Optional[Dict[int, str]]
class MyFactory(ModelFactory):
__model__ = MyModel
__random_seed__ = 1
failed = False
for _ in range(5):
try:
result = MyFactory.build()
assert any(
[
not result.optional_1,
not result.optional_2,
not result.optional_3,
not result.optional_4,
],
)
assert any(
[
bool(result.optional_1),
bool(result.optional_2),
bool(result.optional_3),
bool(result.optional_4),
],
)
failed = False
break
except AssertionError:
failed = True
assert not failed
def test_complex_typing_with_enum() -> None:
class Animal(str, Enum):
DOG = "Dog"
CAT = "Cat"
MONKEY = "Monkey"
class MyModel(BaseModel):
animal_list: List[Animal]
class MyFactory(ModelFactory):
__model__ = MyModel
result = MyFactory.build()
assert result.animal_list
def test_union_literal() -> None:
class MyModel(BaseModel):
x: Union[int, Literal["a", "b", "c"]]
class MyFactory(ModelFactory):
__model__ = MyModel
MyFactory.build()
def test_non_collection_generic() -> None:
T = TypeVar("T")
class LoggedVar(Generic[T]):
def __init__(self, name: str = "", log: Callable[[str], None] = print) -> None:
self.__name = name
self.__log = log
def set(self, value: T) -> None:
self.__log(f"Set {self.__name} to {value}")
self.__value = value
def get(self) -> T:
self.__log(f"Get {self.__name} = {self.__value}")
return self.__value
@dataclass
class MyModel:
x: LoggedVar[int]
class MyFactory(DataclassFactory):
__model__ = MyModel
result = MyFactory.build()
assert isinstance(result.x, LoggedVar)
def test_sequence_dict() -> None:
@dataclass
class MyModel:
sequence_dict: Sequence[Dict]
class MyFactory(DataclassFactory):
__model__ = MyModel
result = MyFactory.build()
assert result.sequence_dict
def test_build_with_callable() -> None:
@dataclass
class A:
foo: Callable[[str], int]
factory = DataclassFactory.create_factory(A)
with pytest.raises(ParameterException, match="Unsupported type:"):
factory.build()
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