feat(media): MprisController.pause() via dbus-next

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

tests/test_media_mpris.py

@@ -0,0 +1,63 @@
+"""Tests für MprisController (Linux/MPRIS)."""
+
+import sys
+from unittest.mock import AsyncMock, MagicMock
+
+import pytest
+
+pytestmark = pytest.mark.skipif(sys.platform != "linux", reason="MPRIS is Linux-only")
+
+
+def _make_player(status: str) -> MagicMock:
+    """Erzeugt einen gemockten Player-Proxy mit gegebenem PlaybackStatus."""
+    player = MagicMock()
+    player.get_playback_status = AsyncMock(return_value=status)
+    player.call_pause = AsyncMock()
+    player.call_play = AsyncMock()
+    return player
+
+
+@pytest.mark.asyncio
+async def test_pause_with_no_players_is_noop(monkeypatch):
+    from whisper_local.media._mpris import MprisController
+
+    controller = MprisController()
+    monkeypatch.setattr(
+        controller, "_list_player_names", AsyncMock(return_value=[])
+    )
+    monkeypatch.setattr(
+        controller, "_get_player_interface", AsyncMock()
+    )
+
+    await controller.pause()
+
+    assert controller._paused == []
+
+
+@pytest.mark.asyncio
+async def test_pause_pauses_only_playing_players(monkeypatch):
+    from whisper_local.media._mpris import MprisController
+
+    playing = _make_player("Playing")
+    paused = _make_player("Paused")
+
+    async def fake_get_player(name: str):
+        return {"org.mpris.MediaPlayer2.spotify": playing,
+                "org.mpris.MediaPlayer2.vlc": paused}[name]
+
+    controller = MprisController()
+    monkeypatch.setattr(
+        controller,
+        "_list_player_names",
+        AsyncMock(return_value=[
+            "org.mpris.MediaPlayer2.spotify",
+            "org.mpris.MediaPlayer2.vlc",
+        ]),
+    )
+    monkeypatch.setattr(controller, "_get_player_interface", fake_get_player)
+
+    await controller.pause()
+
+    playing.call_pause.assert_awaited_once()
+    paused.call_pause.assert_not_awaited()
+    assert controller._paused == ["org.mpris.MediaPlayer2.spotify"]