feat: AudioLibraryTab — persistent extracted-clip library (add/edit/re-export/play/remove)

tests/test_ui_structure.py

@@ -823,3 +823,49 @@ def test_editor_reject_cleans_temps(win, tmp_path):
     dlg.reject()                        # Escape path
     assert not t1.exists()              # op temp swept
     assert os.path.exists(str(src))     # entry temp (_versions[0]) survives
+
+
+def test_audio_library_add_dedup_and_persist(win, tmp_path):
+    import main as m
+    a = tmp_path / "a.wav"; a.write_bytes(b"")
+    b = tmp_path / "b.wav"; b.write_bytes(b"")
+    win._settings.setValue("audio_library_test", [])
+    lib = m.AudioLibraryTab(win._settings, key="audio_library_test")
+    assert lib.clips() == []
+    lib.add_clip(str(a)); lib.add_clip(str(b)); lib.add_clip(str(a))   # dup ignored
+    assert lib.clips() == [str(a), str(b)]                              # order preserved, deduped
+    assert lib._list.count() == 2
+    # a fresh instance restores from the same key
+    lib2 = m.AudioLibraryTab(win._settings, key="audio_library_test")
+    assert lib2.clips() == [str(a), str(b)]
+
+
+def test_audio_library_drops_missing_on_load(win, tmp_path):
+    import main as m
+    good = tmp_path / "g.wav"; good.write_bytes(b"")
+    win._settings.setValue("audio_library_test2", [str(good), "/no/such/file.wav"])
+    lib = m.AudioLibraryTab(win._settings, key="audio_library_test2")
+    assert lib.clips() == [str(good)]        # missing path dropped on load
+
+
+def test_audio_library_remove(win, tmp_path):
+    import main as m
+    a = tmp_path / "a.wav"; a.write_bytes(b""); b = tmp_path / "b.wav"; b.write_bytes(b"")
+    win._settings.setValue("audio_library_test3", [])
+    lib = m.AudioLibraryTab(win._settings, key="audio_library_test3")
+    lib.add_clip(str(a)); lib.add_clip(str(b))
+    lib._list.setCurrentRow(0)
+    lib._on_remove()
+    assert lib.clips() == [str(b)]
+
+
+def test_audio_library_edit_emits(win, tmp_path):
+    import main as m
+    a = tmp_path / "a.wav"; a.write_bytes(b"")
+    win._settings.setValue("audio_library_test4", [])
+    lib = m.AudioLibraryTab(win._settings, key="audio_library_test4")
+    lib.add_clip(str(a)); lib._list.setCurrentRow(0)
+    got = []
+    lib.edit_requested.connect(lambda p: got.append(p))
+    lib._on_edit()
+    assert got == [str(a)]