feat: wire editor ops (delete/silence/reverse/trim) + undo/redo + save-as

tests/test_ui_structure.py

@@ -658,3 +658,74 @@ def test_audio_editor_dialog_scaffold(win):
     # a bad path decodes to an empty waveform without crashing
     dlg._reload()
     dlg.close()
+
+
+def test_editor_delete_builds_command(win, tmp_path, monkeypatch):
+    import main as m, pytest
+    src = tmp_path / "v0.wav"; src.write_bytes(b"")
+    dlg = m.AudioEditorDialog(str(src), parent=win)
+    dlg._wave.set_view(0.0, 5.0); dlg._wave.set_selection(1.0, 3.0)
+    seen = {}
+    class _Stop(Exception): pass
+    def fake(inp, s, e, out):
+        seen.update(inp=inp, s=s, e=e); raise _Stop
+    monkeypatch.setattr(m, "build_audio_delete_command", fake)
+    with pytest.raises(_Stop):
+        dlg._on_delete()
+    assert seen["inp"] == str(src) and seen["s"] == 1.0 and seen["e"] == 3.0
+
+
+def test_editor_op_no_region_is_safe(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._wave.set_view(0.0, 5.0); dlg._wave.set_selection(2.0, 2.0)   # zero-width
+    n = {"c": 0}
+    monkeypatch.setattr(m, "build_audio_delete_command",
+                        lambda *a: n.__setitem__("c", n["c"] + 1) or [])
+    dlg._on_delete()
+    assert n["c"] == 0            # guarded, builder never called
+
+
+def test_editor_delete_whole_clip_blocked(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(0.0, 5.0)   # whole clip
+    n = {"c": 0}
+    monkeypatch.setattr(m, "build_audio_delete_command",
+                        lambda *a: n.__setitem__("c", n["c"] + 1) or [])
+    dlg._on_delete()
+    assert n["c"] == 0            # can't delete the whole clip
+
+
+def test_editor_op_uses_clip_duration_not_view(win, tmp_path, monkeypatch):
+    import main as m, pytest
+    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(0.5, 4.0)          # zoomed sub-window (view ends at 4.5)
+    dlg._wave.set_selection(1.0, 4.5)
+    seen = {}
+    class _Stop(Exception): pass
+    def fake(inp, s, e, out):
+        seen.update(s=s, e=e); raise _Stop
+    monkeypatch.setattr(m, "build_audio_silence_command", fake)
+    with pytest.raises(_Stop):
+        dlg._on_silence()
+    assert seen["e"] == 4.5               # clip duration, not the 4.0 view span
+
+
+def test_editor_undo_redo(win, tmp_path, monkeypatch):
+    import main as m
+    src = tmp_path / "v0.wav"; src.write_bytes(b"")
+    dlg = m.AudioEditorDialog(str(src), parent=win)
+    monkeypatch.setattr(dlg, "_reload", lambda: None)
+    dlg._versions = [str(src), "/t/v1.wav", "/t/v2.wav"]; dlg._ver_idx = 2
+    dlg._on_undo(); assert dlg._ver_idx == 1
+    dlg._on_undo(); assert dlg._ver_idx == 0
+    dlg._on_undo(); assert dlg._ver_idx == 0     # clamped at base
+    dlg._on_redo(); assert dlg._ver_idx == 1
+    dlg._on_redo(); assert dlg._ver_idx == 2
+    dlg._on_redo(); assert dlg._ver_idx == 2     # clamped at top