Merge pull request #3150 from pygame-community/ankith26-typing-test

Add basic pygame.typing unit test, remove problematic TypeAlias usage

buildconfig/stubs/pygame/typing.pyi

@@ -14,7 +14,7 @@ __all__ = [
 
 import sys
 from abc import abstractmethod
-from typing import IO, Callable, Tuple, Union, TypeVar, Protocol, TypeAlias
+from typing import IO, Callable, Tuple, Union, TypeVar, Protocol
 
 if sys.version_info >= (3, 9):
     from os import PathLike as _PathProtocol
@@ -27,9 +27,9 @@ else:
 
 
 # For functions that take a file name
-_PathLike: TypeAlias = Union[str, bytes, _PathProtocol[str], _PathProtocol[bytes]]
+_PathLike = Union[str, bytes, _PathProtocol[str], _PathProtocol[bytes]]
 # Most pygame functions that take a file argument should be able to handle a FileLike type
-FileLike: TypeAlias = Union[_PathLike, IO[bytes], IO[str]]
+FileLike = Union[_PathLike, IO[bytes], IO[str]]
 
 _T_co = TypeVar("_T_co", covariant=True)
 
@@ -49,11 +49,11 @@ class SequenceLike(Protocol[_T_co]):
 
 # Pygame handles float without errors in most cases where a point is expected,
 # usually rounding to int. Also, 'Union[int, float] == float'
-Point: TypeAlias = SequenceLike[float]
+Point = SequenceLike[float]
 # This is used where ints are strictly required
-IntPoint: TypeAlias = SequenceLike[int]
+IntPoint = SequenceLike[int]
 
-ColorLike: TypeAlias = Union[int, str, SequenceLike[int]]
+ColorLike = Union[int, str, SequenceLike[int]]
 
 
 class _HasRectAttribute(Protocol):
@@ -63,8 +63,8 @@ class _HasRectAttribute(Protocol):
     def rect(self) -> Union["RectLike", Callable[[], "RectLike"]]: ...
 
 
-RectLike: TypeAlias = Union[SequenceLike[float], SequenceLike[Point], _HasRectAttribute]
+RectLike = Union[SequenceLike[float], SequenceLike[Point], _HasRectAttribute]
 
 
 # cleanup namespace
-del sys, abstractmethod, IO, Callable, Tuple, Union, TypeVar, Protocol, TypeAlias
+del sys, abstractmethod, IO, Callable, Tuple, Union, TypeVar, Protocol

src_py/typing.py

@@ -14,7 +14,7 @@
 
 import sys
 from abc import abstractmethod
-from typing import IO, Callable, Tuple, Union, TypeVar, Protocol, TypeAlias
+from typing import IO, Callable, Tuple, Union, TypeVar, Protocol
 
 if sys.version_info >= (3, 9):
     from os import PathLike as _PathProtocol
@@ -27,9 +27,9 @@ def __fspath__(self) -> _AnyStr_co: ...
 
 
 # For functions that take a file name
-_PathLike: TypeAlias = Union[str, bytes, _PathProtocol[str], _PathProtocol[bytes]]
+_PathLike = Union[str, bytes, _PathProtocol[str], _PathProtocol[bytes]]
 # Most pygame functions that take a file argument should be able to handle a FileLike type
-FileLike: TypeAlias = Union[_PathLike, IO[bytes], IO[str]]
+FileLike = Union[_PathLike, IO[bytes], IO[str]]
 
 _T_co = TypeVar("_T_co", covariant=True)
 
@@ -49,11 +49,11 @@ def __len__(self) -> int: ...
 
 # Pygame handles float without errors in most cases where a point is expected,
 # usually rounding to int. Also, 'Union[int, float] == float'
-Point: TypeAlias = SequenceLike[float]
+Point = SequenceLike[float]
 # This is used where ints are strictly required
-IntPoint: TypeAlias = SequenceLike[int]
+IntPoint = SequenceLike[int]
 
-ColorLike: TypeAlias = Union[int, str, SequenceLike[int]]
+ColorLike = Union[int, str, SequenceLike[int]]
 
 
 class _HasRectAttribute(Protocol):
@@ -63,8 +63,8 @@ class _HasRectAttribute(Protocol):
     def rect(self) -> Union["RectLike", Callable[[], "RectLike"]]: ...
 
 
-RectLike: TypeAlias = Union[SequenceLike[float], SequenceLike[Point], _HasRectAttribute]
+RectLike = Union[SequenceLike[float], SequenceLike[Point], _HasRectAttribute]
 
 
 # cleanup namespace
-del sys, abstractmethod, IO, Callable, Tuple, Union, TypeVar, Protocol, TypeAlias
+del sys, abstractmethod, IO, Callable, Tuple, Union, TypeVar, Protocol

test/meson.build

@@ -50,6 +50,7 @@ test_files = files(
     'time_test.py',
     'touch_test.py',
     'transform_test.py',
+    'typing_test.py',
     'version_test.py',
     'video_test.py',
     'window_test.py',

test/typing_test.py

@@ -0,0 +1,26 @@
+import unittest
+
+# A basic unit test to test that pygame.typing can import in python code, and
+# the documented attributes are accessible.
+# More rigorous testing needs mypy and is therefore implemented in the stubs
+# directory.
+TYPING_PUBLIC_ATTRS = [
+    "RectLike",
+    "SequenceLike",
+    "FileLike",
+    "ColorLike",
+    "Point",
+    "IntPoint",
+]
+
+
+class TypingTest(unittest.TestCase):
+    def test_typing_has_attrs(self):
+        import pygame.typing
+
+        for i in TYPING_PUBLIC_ATTRS:
+            self.assertTrue(hasattr(pygame.typing, i))
+
+
+if __name__ == "__main__":
+    unittest.main()