fix: make audio editor playback local

tests/test_ui_structure.py

@@ -994,6 +994,102 @@ def test_editor_play_stop_safe(win, tmp_path):
     assert dlg._btn_play.text() == "▶ Play"
 
 
+def test_editor_stop_play_unchecks_button(win, tmp_path):
+    import main as m
+    src = tmp_path / "v0.wav"; src.write_bytes(b"")
+    dlg = m.AudioEditorDialog(str(src), parent=win)
+    dlg._btn_play.setChecked(True)
+    dlg._stop_play()
+    assert not dlg._btn_play.isChecked()
+
+
+def test_editor_play_button_auditions_selection(win, tmp_path, monkeypatch):
+    import main as m
+    src = tmp_path / "v0.wav"; src.write_bytes(b"")
+    dlg = m.AudioEditorDialog(str(src), parent=win)
+    dlg._clip_dur = 5.0
+    dlg._wave.set_view(0.0, 5.0)
+    dlg._wave.set_selection(1.25, 2.75)
+    seen = {}
+    monkeypatch.setattr(
+        dlg, "_play_current",
+        lambda start=None, end=None: seen.update(start=start, end=end))
+    dlg._on_play(True)
+    assert seen == {"start": 1.25, "end": 2.75}
+
+
+def test_editor_has_local_speed_controls(win, tmp_path):
+    import main as m
+    from PyQt6.QtWidgets import QPushButton
+    src = tmp_path / "v0.wav"; src.write_bytes(b"")
+    dlg = m.AudioEditorDialog(str(src), parent=win)
+    assert isinstance(dlg._btn_speed2, QPushButton)
+    assert isinstance(dlg._btn_speed4, QPushButton)
+    dlg._btn_speed2.setChecked(True)
+    dlg._set_playback_speed(2.0)
+    assert dlg._play_speed == 2.0
+    dlg._btn_speed4.setChecked(True)
+    dlg._set_playback_speed(4.0)
+    assert dlg._play_speed == 4.0
+    assert not dlg._btn_speed2.isChecked()
+
+
+def test_editor_has_local_playback_shortcuts(win, tmp_path):
+    import main as m
+    from PyQt6.QtGui import QShortcut
+    src = tmp_path / "v0.wav"; src.write_bytes(b"")
+    dlg = m.AudioEditorDialog(str(src), parent=win)
+    keys = {sc.key().toString() for sc in dlg.findChildren(QShortcut)}
+    assert {"Space", "P", "K"} <= keys
+
+
+def test_editor_play_args_include_selection_and_speed(win, tmp_path):
+    import main as m
+    src = tmp_path / "v0.wav"; src.write_bytes(b"")
+    dlg = m.AudioEditorDialog(str(src), parent=win)
+    dlg._play_speed = 2.0
+    args = dlg._play_args(start=1.0, end=3.5)
+    assert args[:3] == ["-autoexit", "-nodisp", "-loglevel"]
+    assert "-ss" in args and args[args.index("-ss") + 1] == "1.0"
+    assert "-t" in args and args[args.index("-t") + 1] == "2.5"
+    assert "-af" in args and args[args.index("-af") + 1] == "atempo=2.0"
+    assert args[-1] == str(src)
+
+
+def test_editor_playhead_tracks_editor_range_and_speed(win, tmp_path):
+    import main as m
+    src = tmp_path / "v0.wav"; src.write_bytes(b"")
+    dlg = m.AudioEditorDialog(str(src), parent=win)
+    class FakeElapsed:
+        def elapsed(self):
+            return 1500
+    dlg._play_start = 2.0
+    dlg._play_end = 6.0
+    dlg._play_speed = 2.0
+    dlg._play_elapsed = FakeElapsed()
+    dlg._tick_playhead()
+    assert dlg._wave._playhead == 5.0
+
+
+def test_editor_reload_uses_dense_waveform_buckets(win, tmp_path, monkeypatch):
+    import main as m
+    import core.waveform as wf
+    import numpy as np
+    src = tmp_path / "v0.wav"; src.write_bytes(b"")
+    calls = {}
+    monkeypatch.setattr(m, "probe_duration", lambda _p: 4.0)
+    monkeypatch.setattr(
+        wf, "load_region_samples",
+        lambda path, start, dur: np.ones(32000, dtype="float32"))
+    def fake_peaks(samples, buckets=128):
+        calls["buckets"] = buckets
+        return [0.1] * buckets
+    monkeypatch.setattr(wf, "peaks", fake_peaks)
+    dlg = m.AudioEditorDialog(str(src), parent=win)
+    assert calls["buckets"] >= 1000
+    assert len(dlg._wave._peaks) == calls["buckets"]
+
+
 def test_editor_loop_join_plays_preview_range(win, tmp_path, monkeypatch):
     import main as m
     src = tmp_path / "v0.wav"