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TYP: Add type hints to testing module
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14 files changed

+180
-43
lines changed

14 files changed

+180
-43
lines changed

‎ci/mypy-stubtest-allowlist.txt‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@ matplotlib._.*
66
matplotlib.rcsetup._listify_validator
77
matplotlib.rcsetup._validate_linestyle
88
matplotlib.ft2font.*
9-
matplotlib.testing.*
9+
matplotlib.testing.jpl_units.*
1010
matplotlib.sphinxext.*
1111

1212
# set methods have heavy dynamic usage of **kwargs, with differences for subclasses

‎lib/matplotlib/testing/__init__.py‎

Lines changed: 3 additions & 10 deletions
Original file line numberDiff line numberDiff line change
@@ -50,16 +50,9 @@ def setup():
5050
set_reproducibility_for_testing()
5151

5252

53-
def subprocess_run_for_testing(
54-
command: "list[str]",
55-
env: "dict[str, str]" = None,
56-
timeout: float = None,
57-
stdout=None,
58-
stderr=None,
59-
check: bool = False,
60-
text: bool = True,
61-
capture_output: bool = False
62-
) -> "subprocess.Popen":
53+
def subprocess_run_for_testing(command, env=None, timeout=None, stdout=None,
54+
stderr=None, check=False, text=True,
55+
capture_output=False):
6356
"""
6457
Create and run a subprocess.
6558

‎lib/matplotlib/testing/__init__.pyi‎

Lines changed: 49 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,49 @@
1+
from collections.abc import Callable
2+
import subprocess
3+
from typing import Any, IO, Literal, overload
4+
5+
def set_font_settings_for_testing() -> None: ...
6+
def set_reproducibility_for_testing() -> None: ...
7+
def setup() -> None: ...
8+
@overload
9+
def subprocess_run_for_testing(
10+
command: list[str],
11+
env: dict[str, str] | None = ...,
12+
timeout: float | None = ...,
13+
stdout: int | IO[Any] | None = ...,
14+
stderr: int | IO[Any] | None = ...,
15+
check: bool = ...,
16+
*,
17+
text: Literal[True],
18+
capture_output: bool = ...,
19+
) -> subprocess.CompletedProcess[str]: ...
20+
@overload
21+
def subprocess_run_for_testing(
22+
command: list[str],
23+
env: dict[str, str] | None = ...,
24+
timeout: float | None = ...,
25+
stdout: int | IO[Any] | None = ...,
26+
stderr: int | IO[Any] | None = ...,
27+
check: bool = ...,
28+
text: Literal[False] = ...,
29+
capture_output: bool = ...,
30+
) -> subprocess.CompletedProcess[bytes]: ...
31+
@overload
32+
def subprocess_run_for_testing(
33+
command: list[str],
34+
env: dict[str, str] | None = ...,
35+
timeout: float | None = ...,
36+
stdout: int | IO[Any] | None = ...,
37+
stderr: int | IO[Any] | None = ...,
38+
check: bool = ...,
39+
text: bool = ...,
40+
capture_output: bool = ...,
41+
) -> subprocess.CompletedProcess[bytes] | subprocess.CompletedProcess[str]: ...
42+
def subprocess_run_helper(
43+
func: Callable[[], None],
44+
*args: Any,
45+
timeout: float,
46+
extra_env: dict[str, str] | None = ...,
47+
) -> subprocess.CompletedProcess[str]: ...
48+
def _check_for_pgf(texsystem: str) -> bool: ...
49+
def _has_tex_package(package: str) -> bool: ...

‎lib/matplotlib/testing/_markers.py‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -15,7 +15,7 @@
1515
_log = logging.getLogger(__name__)
1616

1717

18-
def _checkdep_usetex():
18+
def _checkdep_usetex() -> bool:
1919
if not shutil.which("tex"):
2020
_log.warning("usetex mode requires TeX.")
2121
return False

‎lib/matplotlib/testing/compare.py‎

Lines changed: 4 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -108,9 +108,8 @@ def __call__(self, orig, dest):
108108
stdin=subprocess.PIPE, stdout=subprocess.PIPE)
109109
try:
110110
self._read_until(b"\nGS")
111-
except _ConverterError as err:
112-
raise OSError(
113-
"Failed to start Ghostscript:\n\n" + err.args[0]) from None
111+
except _ConverterError as e:
112+
raise OSError(f"Failed to start Ghostscript:\n\n{e.args[0]}") from None
114113

115114
def encode_and_escape(name):
116115
return (os.fsencode(name)
@@ -244,10 +243,8 @@ def _update_converter():
244243
converter['svg'] = _SVGConverter()
245244

246245

247-
#: A dictionary that maps filename extensions to functions which
248-
#: themselves map arguments `old` and `new` (filenames) to a list of strings.
249-
#: The list can then be passed to Popen to convert files with that
250-
#: extension to png format.
246+
#: A dictionary that maps filename extensions to functions which themselves
247+
#: convert between arguments `old` and `new` (filenames).
251248
converter = {}
252249
_update_converter()
253250
_svg_with_matplotlib_fonts_converter = _SVGWithMatplotlibFontsConverter()

‎lib/matplotlib/testing/compare.pyi‎

Lines changed: 32 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,32 @@
1+
from collections.abc import Callable
2+
from typing import Literal, overload
3+
4+
from numpy.typing import NDArray
5+
6+
__all__ = ["calculate_rms", "comparable_formats", "compare_images"]
7+
8+
def make_test_filename(fname: str, purpose: str) -> str: ...
9+
def get_cache_dir() -> str: ...
10+
def get_file_hash(path: str, block_size: int = ...) -> str: ...
11+
12+
converter: dict[str, Callable[[str, str], None]] = {}
13+
14+
def comparable_formats() -> list[str]: ...
15+
def convert(filename: str, cache: bool) -> str: ...
16+
def crop_to_same(
17+
actual_path: str, actual_image: NDArray, expected_path: str, expected_image: NDArray
18+
) -> tuple[NDArray, NDArray]: ...
19+
def calculate_rms(expected_image: NDArray, actual_image: NDArray) -> float: ...
20+
@overload
21+
def compare_images(
22+
expected: str, actual: str, tol: float, in_decorator: Literal[True]
23+
) -> None | dict[str, float | str]: ...
24+
@overload
25+
def compare_images(
26+
expected: str, actual: str, tol: float, in_decorator: Literal[False]
27+
) -> None | str: ...
28+
@overload
29+
def compare_images(
30+
expected: str, actual: str, tol: float, in_decorator: bool = ...
31+
) -> None | str | dict[str, float | str]: ...
32+
def save_diff_image(expected: str, actual: str, output: str) -> None: ...

‎lib/matplotlib/testing/conftest.pyi‎

Lines changed: 12 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,12 @@
1+
from types import ModuleType
2+
3+
import pytest
4+
5+
def pytest_configure(config: pytest.Config) -> None: ...
6+
def pytest_unconfigure(config: pytest.Config) -> None: ...
7+
@pytest.fixture
8+
def mpl_test_settings(request: pytest.FixtureRequest) -> None: ...
9+
@pytest.fixture
10+
def pd() -> ModuleType: ...
11+
@pytest.fixture
12+
def xr() -> ModuleType: ...

‎lib/matplotlib/testing/decorators.pyi‎

Lines changed: 25 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,25 @@
1+
from collections.abc import Callable, Sequence
2+
from pathlib import Path
3+
from typing import Any, TypeVar
4+
from typing_extensions import ParamSpec
5+
6+
from matplotlib.figure import Figure
7+
from matplotlib.typing import RcStyleType
8+
9+
_P = ParamSpec("_P")
10+
_R = TypeVar("_R")
11+
12+
def remove_ticks_and_titles(figure: Figure) -> None: ...
13+
def image_comparison(
14+
baseline_images: list[str] | None,
15+
extensions: list[str] | None = ...,
16+
tol: float = ...,
17+
freetype_version: tuple[str, str] | str | None = ...,
18+
remove_text: bool = ...,
19+
savefig_kwarg: dict[str, Any] | None = ...,
20+
style: RcStyleType = ...,
21+
) -> Callable[[Callable[_P, _R]], Callable[_P, _R]]: ...
22+
def check_figures_equal(
23+
*, extensions: Sequence[str] = ..., tol: float = ...
24+
) -> Callable[[Callable[_P, _R]], Callable[_P, _R]]: ...
25+
def _image_directories(func: Callable) -> tuple[Path, Path]: ...

‎lib/matplotlib/testing/widgets.py‎

Lines changed: 7 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -6,9 +6,10 @@
66
See also :mod:`matplotlib.tests.test_widgets`.
77
"""
88

9-
import matplotlib.pyplot as plt
109
from unittest import mock
1110

11+
import matplotlib.pyplot as plt
12+
1213

1314
def get_ax():
1415
"""Create a plot and return its axes."""
@@ -34,9 +35,9 @@ def mock_event(ax, button=1, xdata=0, ydata=0, key=None, step=1):
3435
----------
3536
ax : `~matplotlib.axes.Axes`
3637
The axes the event will be in.
37-
xdata : int
38+
xdata : float
3839
x coord of mouse in data coords.
39-
ydata : int
40+
ydata : float
4041
y coord of mouse in data coords.
4142
button : None or `MouseButton` or {'up', 'down'}
4243
The mouse button pressed in this event (see also `.MouseEvent`).
@@ -70,12 +71,12 @@ def do_event(tool, etype, button=1, xdata=0, ydata=0, key=None, step=1):
7071
7172
Parameters
7273
----------
73-
tool : matplotlib.widgets.RectangleSelector
74+
tool : matplotlib.widgets.AxesWidget
7475
etype : str
7576
The event to trigger.
76-
xdata : int
77+
xdata : float
7778
x coord of mouse in data coords.
78-
ydata : int
79+
ydata : float
7980
y coord of mouse in data coords.
8081
button : None or `MouseButton` or {'up', 'down'}
8182
The mouse button pressed in this event (see also `.MouseEvent`).

‎lib/matplotlib/testing/widgets.pyi‎

Lines changed: 31 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,31 @@
1+
from typing import Any, Literal
2+
3+
from matplotlib.axes import Axes
4+
from matplotlib.backend_bases import Event, MouseButton
5+
from matplotlib.widgets import AxesWidget, Widget
6+
7+
def get_ax() -> Axes: ...
8+
def noop(*args: Any, **kwargs: Any) -> None: ...
9+
def mock_event(
10+
ax: Axes,
11+
button: MouseButton | int | Literal["up", "down"] | None = ...,
12+
xdata: float = ...,
13+
ydata: float = ...,
14+
key: str | None = ...,
15+
step: int = ...,
16+
) -> Event: ...
17+
def do_event(
18+
tool: AxesWidget,
19+
etype: str,
20+
button: MouseButton | int | Literal["up", "down"] | None = ...,
21+
xdata: float = ...,
22+
ydata: float = ...,
23+
key: str | None = ...,
24+
step: int = ...,
25+
) -> None: ...
26+
def click_and_drag(
27+
tool: Widget,
28+
start: tuple[float, float],
29+
end: tuple[float, float],
30+
key: str | None = ...,
31+
) -> None: ...

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