feat: added integration tests

src/test/mocks/audio-interface.ts

@@ -0,0 +1,40 @@
+/**
+ * Mock implementation of KGAudioInterface for integration tests
+ * Provides interface compatibility while avoiding actual audio operations
+ */
+import { vi } from 'vitest'
+
+export const mockAudioInterface = {
+  // Audio context management
+  startAudioContext: vi.fn().mockResolvedValue(true),
+  isAudioContextStarted: vi.fn().mockReturnValue(true),
+  
+  // Track management
+  createTrackBus: vi.fn().mockResolvedValue(undefined),
+  setTrackInstrument: vi.fn().mockResolvedValue(undefined),
+  setTrackVolume: vi.fn().mockReturnValue(undefined),
+  setTrackMuted: vi.fn().mockReturnValue(undefined),
+  setTrackSoloed: vi.fn().mockReturnValue(undefined),
+  removeTrackBus: vi.fn().mockReturnValue(undefined),
+  
+  // Playback control
+  startPlayback: vi.fn().mockReturnValue(undefined),
+  stopPlayback: vi.fn().mockReturnValue(undefined),
+  pausePlayback: vi.fn().mockReturnValue(undefined),
+  setPlaybackPosition: vi.fn().mockReturnValue(undefined),
+  
+  // Note scheduling
+  scheduleNote: vi.fn().mockReturnValue(undefined),
+  scheduleNotes: vi.fn().mockReturnValue(undefined),
+  clearScheduledNotes: vi.fn().mockReturnValue(undefined),
+  
+  // Transport
+  getCurrentBeat: vi.fn().mockReturnValue(0),
+  setBpm: vi.fn().mockReturnValue(undefined),
+  
+  // Singleton pattern
+  getInstance: vi.fn().mockReturnThis(),
+}
+
+// Mock the class constructor
+export const mockKGAudioInterfaceClass = vi.fn(() => mockAudioInterface)