feat: add pynput hotkey backend for Windows

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tests/test_hotkey.py

@@ -4,8 +4,6 @@ from unittest.mock import AsyncMock, MagicMock, patch
 
 import pytest
 
-pytestmark = pytest.mark.skipif(sys.platform != "linux", reason="evdev only available on Linux")
-
 
 @pytest.fixture
 def listener():
@@ -13,6 +11,7 @@ def listener():
     return EvdevHotkeyListener(key_name="KEY_F12")
 
 
+@pytest.mark.skipif(sys.platform != "linux", reason="evdev only available on Linux")
 class TestHotkeyListener:
     def test_init_stores_key_name(self, listener):
         assert listener.key_name == "KEY_F12"
@@ -37,3 +36,56 @@ class TestHotkeyListener:
     async def test_no_callback_no_error(self, listener):
         await listener._handle_key_event(key_down=True)
         await listener._handle_key_event(key_down=False)
+
+
+class TestPynputKeyMapping:
+    """Tests für die Key-Name-Übersetzung von evdev zu pynput."""
+
+    def test_map_function_key(self):
+        from whisper_local.hotkey._pynput import _evdev_to_pynput_key
+        from pynput.keyboard import Key
+        assert _evdev_to_pynput_key("KEY_F12") == Key.f12
+
+    def test_map_f1(self):
+        from whisper_local.hotkey._pynput import _evdev_to_pynput_key
+        from pynput.keyboard import Key
+        assert _evdev_to_pynput_key("KEY_F1") == Key.f1
+
+    def test_map_unknown_key_raises(self):
+        from whisper_local.hotkey._pynput import _evdev_to_pynput_key
+        with pytest.raises(ValueError, match="Unbekannter Key-Name"):
+            _evdev_to_pynput_key("KEY_NONEXISTENT_999")
+
+
+class TestPynputHotkeyListener:
+    def test_init_stores_key_name(self):
+        from whisper_local.hotkey._pynput import PynputHotkeyListener
+        listener = PynputHotkeyListener("KEY_F12")
+        assert listener.key_name == "KEY_F12"
+
+    @pytest.mark.asyncio
+    async def test_handle_key_event_press(self):
+        from whisper_local.hotkey._pynput import PynputHotkeyListener
+        listener = PynputHotkeyListener("KEY_F12")
+        on_press = AsyncMock()
+        listener.on_press = on_press
+
+        await listener._handle_key_event(key_down=True)
+        on_press.assert_awaited_once()
+
+    @pytest.mark.asyncio
+    async def test_handle_key_event_release(self):
+        from whisper_local.hotkey._pynput import PynputHotkeyListener
+        listener = PynputHotkeyListener("KEY_F12")
+        on_release = AsyncMock()
+        listener.on_release = on_release
+
+        await listener._handle_key_event(key_down=False)
+        on_release.assert_awaited_once()
+
+    @pytest.mark.asyncio
+    async def test_no_callback_no_error(self):
+        from whisper_local.hotkey._pynput import PynputHotkeyListener
+        listener = PynputHotkeyListener("KEY_F12")
+        await listener._handle_key_event(key_down=True)
+        await listener._handle_key_event(key_down=False)