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test_util_typing.py
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test_util_typing.py
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"""
test_util_typing
~~~~~~~~~~~~~~~~
Tests util.typing functions.
:copyright: Copyright 2007-2021 by the Sphinx team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import sys
from numbers import Integral
from struct import Struct
from types import TracebackType
from typing import (Any, Callable, Dict, Generator, List, NewType, Optional, Tuple, TypeVar,
Union)
import pytest
from sphinx.util.typing import restify, stringify
class MyClass1:
pass
class MyClass2(MyClass1):
__qualname__ = '<MyClass2>'
T = TypeVar('T')
MyInt = NewType('MyInt', int)
class MyList(List[T]):
pass
class BrokenType:
__args__ = int
def test_restify():
assert restify(int) == ":class:`int`"
assert restify(str) == ":class:`str`"
assert restify(None) == ":obj:`None`"
assert restify(Integral) == ":class:`numbers.Integral`"
assert restify(Struct) == ":class:`struct.Struct`"
assert restify(TracebackType) == ":class:`types.TracebackType`"
assert restify(Any) == ":obj:`~typing.Any`"
def test_restify_type_hints_containers():
assert restify(List) == ":class:`~typing.List`"
assert restify(Dict) == ":class:`~typing.Dict`"
assert restify(List[int]) == ":class:`~typing.List`\\ [:class:`int`]"
assert restify(List[str]) == ":class:`~typing.List`\\ [:class:`str`]"
assert restify(Dict[str, float]) == (":class:`~typing.Dict`\\ "
"[:class:`str`, :class:`float`]")
assert restify(Tuple[str, str, str]) == (":class:`~typing.Tuple`\\ "
"[:class:`str`, :class:`str`, :class:`str`]")
assert restify(Tuple[str, ...]) == ":class:`~typing.Tuple`\\ [:class:`str`, ...]"
assert restify(Tuple[()]) == ":class:`~typing.Tuple`\\ [()]"
assert restify(List[Dict[str, Tuple]]) == (":class:`~typing.List`\\ "
"[:class:`~typing.Dict`\\ "
"[:class:`str`, :class:`~typing.Tuple`]]")
assert restify(MyList[Tuple[int, int]]) == (":class:`tests.test_util_typing.MyList`\\ "
"[:class:`~typing.Tuple`\\ "
"[:class:`int`, :class:`int`]]")
assert restify(Generator[None, None, None]) == (":class:`~typing.Generator`\\ "
"[:obj:`None`, :obj:`None`, :obj:`None`]")
def test_restify_type_hints_Callable():
assert restify(Callable) == ":class:`~typing.Callable`"
if sys.version_info >= (3, 7):
assert restify(Callable[[str], int]) == (":class:`~typing.Callable`\\ "
"[[:class:`str`], :class:`int`]")
assert restify(Callable[..., int]) == (":class:`~typing.Callable`\\ "
"[[...], :class:`int`]")
else:
assert restify(Callable[[str], int]) == (":class:`~typing.Callable`\\ "
"[:class:`str`, :class:`int`]")
assert restify(Callable[..., int]) == (":class:`~typing.Callable`\\ "
"[..., :class:`int`]")
def test_restify_type_hints_Union():
assert restify(Optional[int]) == ":obj:`~typing.Optional`\\ [:class:`int`]"
assert restify(Union[str, None]) == ":obj:`~typing.Optional`\\ [:class:`str`]"
assert restify(Union[int, str]) == ":obj:`~typing.Union`\\ [:class:`int`, :class:`str`]"
if sys.version_info >= (3, 7):
assert restify(Union[int, Integral]) == (":obj:`~typing.Union`\\ "
"[:class:`int`, :class:`numbers.Integral`]")
assert (restify(Union[MyClass1, MyClass2]) ==
(":obj:`~typing.Union`\\ "
"[:class:`tests.test_util_typing.MyClass1`, "
":class:`tests.test_util_typing.<MyClass2>`]"))
else:
assert restify(Union[int, Integral]) == ":class:`numbers.Integral`"
assert restify(Union[MyClass1, MyClass2]) == ":class:`tests.test_util_typing.MyClass1`"
@pytest.mark.skipif(sys.version_info < (3, 7), reason='python 3.7+ is required.')
def test_restify_type_hints_typevars():
T = TypeVar('T')
T_co = TypeVar('T_co', covariant=True)
T_contra = TypeVar('T_contra', contravariant=True)
assert restify(T) == ":obj:`tests.test_util_typing.T`"
assert restify(T_co) == ":obj:`tests.test_util_typing.T_co`"
assert restify(T_contra) == ":obj:`tests.test_util_typing.T_contra`"
assert restify(List[T]) == ":class:`~typing.List`\\ [:obj:`tests.test_util_typing.T`]"
assert restify(MyInt) == ":class:`MyInt`"
def test_restify_type_hints_custom_class():
assert restify(MyClass1) == ":class:`tests.test_util_typing.MyClass1`"
assert restify(MyClass2) == ":class:`tests.test_util_typing.<MyClass2>`"
def test_restify_type_hints_alias():
MyStr = str
MyTuple = Tuple[str, str]
assert restify(MyStr) == ":class:`str`"
assert restify(MyTuple) == ":class:`~typing.Tuple`\\ [:class:`str`, :class:`str`]"
@pytest.mark.skipif(sys.version_info < (3, 7), reason='python 3.7+ is required.')
def test_restify_type_ForwardRef():
from typing import ForwardRef # type: ignore
assert restify(ForwardRef("myint")) == ":class:`myint`"
@pytest.mark.skipif(sys.version_info < (3, 8), reason='python 3.8+ is required.')
def test_restify_type_Literal():
from typing import Literal # type: ignore
assert restify(Literal[1, "2", "\r"]) == ":obj:`~typing.Literal`\\ [1, '2', '\\r']"
@pytest.mark.skipif(sys.version_info < (3, 9), reason='python 3.9+ is required.')
def test_restify_pep_585():
assert restify(list[str]) == ":class:`list`\\ [:class:`str`]" # type: ignore
assert restify(dict[str, str]) == ":class:`dict`\\ [:class:`str`, :class:`str`]" # type: ignore
assert restify(dict[str, tuple[int, ...]]) == \
":class:`dict`\\ [:class:`str`, :class:`tuple`\\ [:class:`int`, ...]]" # type: ignore
@pytest.mark.skipif(sys.version_info < (3, 10), reason='python 3.10+ is required.')
def test_restify_type_union_operator():
assert restify(int | None) == ":class:`int` | :obj:`None`" # type: ignore
assert restify(int | str) == ":class:`int` | :class:`str`" # type: ignore
assert restify(int | str | None) == ":class:`int` | :class:`str` | :obj:`None`" # type: ignore
def test_restify_broken_type_hints():
assert restify(BrokenType) == ':class:`tests.test_util_typing.BrokenType`'
def test_stringify():
assert stringify(int) == "int"
assert stringify(str) == "str"
assert stringify(None) == "None"
assert stringify(Integral) == "numbers.Integral"
assert stringify(Struct) == "struct.Struct"
assert stringify(TracebackType) == "types.TracebackType"
assert stringify(Any) == "Any"
def test_stringify_type_hints_containers():
assert stringify(List) == "List"
assert stringify(Dict) == "Dict"
assert stringify(List[int]) == "List[int]"
assert stringify(List[str]) == "List[str]"
assert stringify(Dict[str, float]) == "Dict[str, float]"
assert stringify(Tuple[str, str, str]) == "Tuple[str, str, str]"
assert stringify(Tuple[str, ...]) == "Tuple[str, ...]"
assert stringify(Tuple[()]) == "Tuple[()]"
assert stringify(List[Dict[str, Tuple]]) == "List[Dict[str, Tuple]]"
assert stringify(MyList[Tuple[int, int]]) == "tests.test_util_typing.MyList[Tuple[int, int]]"
assert stringify(Generator[None, None, None]) == "Generator[None, None, None]"
@pytest.mark.skipif(sys.version_info < (3, 9), reason='python 3.9+ is required.')
def test_stringify_type_hints_pep_585():
assert stringify(list[int]) == "list[int]"
assert stringify(list[str]) == "list[str]"
assert stringify(dict[str, float]) == "dict[str, float]"
assert stringify(tuple[str, str, str]) == "tuple[str, str, str]"
assert stringify(tuple[str, ...]) == "tuple[str, ...]"
assert stringify(tuple[()]) == "tuple[()]"
assert stringify(list[dict[str, tuple]]) == "list[dict[str, tuple]]"
assert stringify(type[int]) == "type[int]"
@pytest.mark.skipif(sys.version_info < (3, 9), reason='python 3.9+ is required.')
def test_stringify_Annotated():
from typing import Annotated # type: ignore
assert stringify(Annotated[str, "foo", "bar"]) == "str" # NOQA
def test_stringify_type_hints_string():
assert stringify("int") == "int"
assert stringify("str") == "str"
assert stringify(List["int"]) == "List[int]"
assert stringify("Tuple[str]") == "Tuple[str]"
assert stringify("unknown") == "unknown"
def test_stringify_type_hints_Callable():
assert stringify(Callable) == "Callable"
if sys.version_info >= (3, 7):
assert stringify(Callable[[str], int]) == "Callable[[str], int]"
assert stringify(Callable[..., int]) == "Callable[[...], int]"
else:
assert stringify(Callable[[str], int]) == "Callable[str, int]"
assert stringify(Callable[..., int]) == "Callable[..., int]"
def test_stringify_type_hints_Union():
assert stringify(Optional[int]) == "Optional[int]"
assert stringify(Union[str, None]) == "Optional[str]"
assert stringify(Union[int, str]) == "Union[int, str]"
if sys.version_info >= (3, 7):
assert stringify(Union[int, Integral]) == "Union[int, numbers.Integral]"
assert (stringify(Union[MyClass1, MyClass2]) ==
"Union[tests.test_util_typing.MyClass1, tests.test_util_typing.<MyClass2>]")
else:
assert stringify(Union[int, Integral]) == "numbers.Integral"
assert stringify(Union[MyClass1, MyClass2]) == "tests.test_util_typing.MyClass1"
def test_stringify_type_hints_typevars():
T = TypeVar('T')
T_co = TypeVar('T_co', covariant=True)
T_contra = TypeVar('T_contra', contravariant=True)
if sys.version_info < (3, 7):
assert stringify(T) == "T"
assert stringify(T_co) == "T_co"
assert stringify(T_contra) == "T_contra"
assert stringify(List[T]) == "List[T]"
else:
assert stringify(T) == "tests.test_util_typing.T"
assert stringify(T_co) == "tests.test_util_typing.T_co"
assert stringify(T_contra) == "tests.test_util_typing.T_contra"
assert stringify(List[T]) == "List[tests.test_util_typing.T]"
assert stringify(MyInt) == "MyInt"
def test_stringify_type_hints_custom_class():
assert stringify(MyClass1) == "tests.test_util_typing.MyClass1"
assert stringify(MyClass2) == "tests.test_util_typing.<MyClass2>"
def test_stringify_type_hints_alias():
MyStr = str
MyTuple = Tuple[str, str]
assert stringify(MyStr) == "str"
assert stringify(MyTuple) == "Tuple[str, str]" # type: ignore
@pytest.mark.skipif(sys.version_info < (3, 8), reason='python 3.8+ is required.')
def test_stringify_type_Literal():
from typing import Literal # type: ignore
assert stringify(Literal[1, "2", "\r"]) == "Literal[1, '2', '\\r']"
@pytest.mark.skipif(sys.version_info < (3, 10), reason='python 3.10+ is required.')
def test_stringify_type_union_operator():
assert stringify(int | None) == "int | None" # type: ignore
assert stringify(int | str) == "int | str" # type: ignore
assert stringify(int | str | None) == "int | str | None" # type: ignore
def test_stringify_broken_type_hints():
assert stringify(BrokenType) == 'tests.test_util_typing.BrokenType'