.

src/vibes.test.ts

@@ -4,6 +4,17 @@ import { gardenAudioConfig } from './audio/garden-audio-config';
 import { getInitialVibe, hexToRgb, VIBE_PRESETS } from './vibes';
 
 const originalLocalStorage = globalThis.localStorage;
+const colorInteractionKeys = [
+  'color1ToColor1',
+  'color1ToColor2',
+  'color1ToColor3',
+  'color2ToColor1',
+  'color2ToColor2',
+  'color2ToColor3',
+  'color3ToColor1',
+  'color3ToColor2',
+  'color3ToColor3',
+] as const;
 
 const setBrowserVibeState = ({
   storedVibeId = null,
@@ -85,4 +96,15 @@ describe('vibe and audio config contract', () => {
       expect(Math.abs(voice.panOffset)).toBeLessThanOrEqual(1);
     });
   });
+
+  it('uses discrete color interaction matrices for every vibe', () => {
+    VIBE_PRESETS.forEach((vibe) => {
+      colorInteractionKeys.forEach((key) => {
+        expect([-1, 0, 1]).toContain(vibe.settings[key]);
+      });
+      expect(vibe.settings.color1ToColor1).toBe(1);
+      expect(vibe.settings.color2ToColor2).toBe(1);
+      expect(vibe.settings.color3ToColor3).toBe(1);
+    });
+  });
 });