Add comprehensive test coverage for Ableton automation, fader policies, and pad sound export logic

tests/ableton-pad-sound.test.ts

@@ -0,0 +1,47 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import {
+  getPadEnvelopeState,
+  getPadSoundState,
+} from '../src/lib/exporters/ableton/padSound';
+import { AblTrack } from '../src/lib/transformers/ableton';
+
+const track = {
+  volume: 0.75,
+  pitch: -3,
+  playMode: 'key',
+  pan: 0.25,
+  trimLeft: 100,
+  trimRight: 1000,
+  attack: 64,
+  release: 128,
+  timeStretch: 'bars',
+  timeStretchBpm: 92,
+  timeStretchBars: 2,
+  rootNote: 48,
+  soundLength: 4,
+} as AblTrack;
+
+test('keeps static pad sound settings separate from group fader state', () => {
+  assert.deepEqual(getPadSoundState(track), {
+    amp: 0.75,
+    pitch: -3,
+    playMode: 'key',
+    pan: 0.25,
+    trimStart: 100,
+    trimEnd: 1000,
+    envelope: { attack: 64, release: 128 },
+    time: { mode: 'bars', bpm: 92, bars: 2 },
+    rootNote: 48,
+    soundLength: 4,
+  });
+});
+
+test('maps only pad ENV values into the static Classic envelope', () => {
+  const envelope = getPadEnvelopeState(getPadSoundState(track));
+
+  assert.equal(envelope.classicAttackMs, (64 / 255) * 4000);
+  assert.equal(envelope.classicReleaseMs, (128 / 255) * 4000);
+  assert.equal(envelope.oneShotFadeInMs, 0);
+  assert.equal(envelope.oneShotFadeOutMs, 5);
+});