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

tests/ableton-fader-policies.test.ts

@@ -0,0 +1,35 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import {
+  FADER_POLICIES,
+  convertGroupFaderValue,
+  getFaderPolicy,
+} from '../src/lib/exporters/ableton/faderPolicies';
+import { AblTrack } from '../src/lib/transformers/ableton';
+import { FaderParam } from '../src/types/types';
+
+const track = { volume: 0.4 } as AblTrack;
+
+test('defines an explicit policy for every EP group fader parameter', () => {
+  assert.equal(Object.keys(FADER_POLICIES).length, 12);
+  for (let parameter = FaderParam.LVL; parameter <= FaderParam.MOD; parameter++) {
+    assert.ok(getFaderPolicy(parameter));
+  }
+});
+
+test('separates Live targets, note transforms and unsupported group parameters', () => {
+  assert.equal(getFaderPolicy(FaderParam.PAN).renderStrategy, 'target');
+  assert.equal(getFaderPolicy(FaderParam.VEL).renderStrategy, 'note');
+  assert.equal(getFaderPolicy(FaderParam.TIM).renderStrategy, 'unsupported');
+  assert.equal(getFaderPolicy(FaderParam.ATK).renderStrategy, 'unsupported');
+  assert.equal(getFaderPolicy(FaderParam.REL).renderStrategy, 'unsupported');
+});
+
+test('uses one group-fader conversion path for mixer and pad targets', () => {
+  assert.equal(convertGroupFaderValue(FaderParam.LVL, 0.5, { track }), 0.2);
+  assert.equal(convertGroupFaderValue(FaderParam.PAN, 0.75, { track }), 0.5);
+  assert.equal(
+    convertGroupFaderValue(FaderParam.PTC, 0.75, { track, valueOffset: 7 }),
+    9.5,
+  );
+});