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from __future__ import annotations

import re

import typing

from typing import Any, Callable, TypeVar

import numpy as np

import pytest

import matplotlib as mpl

from matplotlib import _api

if typing.TYPE_CHECKING:

from typing_extensions import Self

T = TypeVar('T')

@pytest.mark.parametrize('target,shape_repr,test_shape',

[((None, ), "(N,)", (1, 3)),

((None, 3), "(N, 3)", (1,)),

((None, 3), "(N, 3)", (1, 2)),

((1, 5), "(1, 5)", (1, 9)),

((None, 2, None), "(M, 2, N)", (1, 3, 1))

])

def test_check_shape(target: tuple[int | None, ...],

shape_repr: str,

test_shape: tuple[int, ...]) -> None:

error_pattern = "^" + re.escape(

f"'aardvark' must be {len(target)}D with shape {shape_repr}, but your input "

f"has shape {test_shape}")

data = np.zeros(test_shape)

with pytest.raises(ValueError, match=error_pattern):

_api.check_shape(target, aardvark=data)

def test_classproperty_deprecation() -> None:

class A:

@_api.deprecated("0.0.0")

@_api.classproperty

def f(cls: Self) -> None:

pass

with pytest.warns(mpl.MatplotlibDeprecationWarning):

A.f

with pytest.warns(mpl.MatplotlibDeprecationWarning):

a = A()

a.f

def test_deprecate_privatize_attribute() -> None:

class C:

def __init__(self) -> None: self._attr = 1

def _meth(self, arg: T) -> T: return arg

attr: int = _api.deprecate_privatize_attribute("0.0")

meth: Callable = _api.deprecate_privatize_attribute("0.0")

c = C()

with pytest.warns(mpl.MatplotlibDeprecationWarning):

assert c.attr == 1

with pytest.warns(mpl.MatplotlibDeprecationWarning):

c.attr = 2

with pytest.warns(mpl.MatplotlibDeprecationWarning):

assert c.attr == 2

with pytest.warns(mpl.MatplotlibDeprecationWarning):

assert c.meth(42) == 42

def test_delete_parameter() -> None:

@_api.delete_parameter("3.0", "foo")

def func1(foo: Any = None) -> None:

pass

@_api.delete_parameter("3.0", "foo")

def func2(**kwargs: Any) -> None:

pass

for func in [func1, func2]: # type: ignore[list-item]

func() # No warning.

with pytest.warns(mpl.MatplotlibDeprecationWarning):

func(foo="bar")

def pyplot_wrapper(foo: Any = _api.deprecation._deprecated_parameter) -> None:

func1(foo)

pyplot_wrapper() # No warning.

with pytest.warns(mpl.MatplotlibDeprecationWarning):

func(foo="bar")

def test_make_keyword_only() -> None:

@_api.make_keyword_only("3.0", "arg")

def func(pre: Any, arg: Any, post: Any = None) -> None:

pass

func(1, arg=2) # Check that no warning is emitted.

with pytest.warns(mpl.MatplotlibDeprecationWarning):

func(1, 2)

with pytest.warns(mpl.MatplotlibDeprecationWarning):

func(1, 2, 3)

def test_deprecation_alternative() -> None:

alternative = "`.f1`, `f2`, `f3(x) <.f3>` or `f4(x)<f4>`"

@_api.deprecated("1", alternative=alternative)

def f() -> None:

pass

if f.__doc__ is None:

pytest.skip('Documentation is disabled')

assert alternative in f.__doc__

def test_empty_check_in_list() -> None:

with pytest.raises(TypeError, match="No argument to check!"):

_api.check_in_list(["a"])

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