feat: persist track mute/solo status

src/core/commands/track/UpdateTrackCommand.test.ts

@@ -0,0 +1,87 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+import { KGCore } from '../../KGCore';
+import { KGProject } from '../../KGProject';
+import { KGAudioInterface } from '../../audio-interface/KGAudioInterface';
+import { KGTrack } from '../../track/KGTrack';
+import { UpdateTrackCommand } from './UpdateTrackCommand';
+
+vi.mock('../../KGCore', () => ({
+  KGCore: {
+    instance: vi.fn(),
+  },
+}));
+
+vi.mock('../../audio-interface/KGAudioInterface', () => ({
+  KGAudioInterface: {
+    instance: vi.fn(),
+  },
+}));
+
+describe('UpdateTrackCommand', () => {
+  let track: KGTrack;
+  let project: KGProject;
+  const mockCore = {
+    getCurrentProject: vi.fn(),
+  };
+  const mockAudioInterface = {
+    setTrackVolume: vi.fn(),
+    setTrackInstrument: vi.fn(),
+    setTrackMute: vi.fn(),
+    setTrackSolo: vi.fn(),
+  };
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+    track = new KGTrack('Track 1', 1);
+    project = new KGProject('Test', 32, 0, 125, undefined, undefined, undefined, undefined, undefined, 1, [track], 11);
+    mockCore.getCurrentProject.mockReturnValue(project);
+    vi.mocked(KGCore.instance).mockReturnValue(mockCore as unknown as KGCore);
+    vi.mocked(KGAudioInterface.instance).mockReturnValue(mockAudioInterface as unknown as KGAudioInterface);
+  });
+
+  it('updates muted state and propagates to the audio interface', () => {
+    const command = new UpdateTrackCommand(1, { muted: true });
+
+    command.execute();
+
+    expect(track.getMuted()).toBe(true);
+    expect(mockAudioInterface.setTrackMute).toHaveBeenCalledWith('1', true);
+    expect(command.getChangedProperties()).toEqual(new Set(['muted']));
+  });
+
+  it('updates solo state and propagates to the audio interface', () => {
+    const command = new UpdateTrackCommand(1, { solo: true });
+
+    command.execute();
+
+    expect(track.getSolo()).toBe(true);
+    expect(mockAudioInterface.setTrackSolo).toHaveBeenCalledWith('1', true);
+    expect(command.getChangedProperties()).toEqual(new Set(['solo']));
+  });
+
+  it('restores muted and solo state on undo', () => {
+    track.setMuted(true);
+    track.setSolo(true);
+    const command = new UpdateTrackCommand(1, { muted: false, solo: false });
+
+    command.execute();
+    command.undo();
+
+    expect(track.getMuted()).toBe(true);
+    expect(track.getSolo()).toBe(true);
+    expect(mockAudioInterface.setTrackMute).toHaveBeenLastCalledWith('1', true);
+    expect(mockAudioInterface.setTrackSolo).toHaveBeenLastCalledWith('1', true);
+  });
+
+  it('treats unchanged mute and solo values as no-ops', () => {
+    const command = new UpdateTrackCommand(1, { muted: false, solo: false });
+
+    command.execute();
+
+    expect(track.getMuted()).toBe(false);
+    expect(track.getSolo()).toBe(false);
+    expect(mockAudioInterface.setTrackMute).not.toHaveBeenCalled();
+    expect(mockAudioInterface.setTrackSolo).not.toHaveBeenCalled();
+    expect(command.getChangedProperties()).toEqual(new Set());
+  });
+});