update

test/settings-handlers.test.js

@@ -0,0 +1,45 @@
+'use strict';
+const assert = require('node:assert');
+const { SETTINGS_HANDLERS, applyPatch } = require('../lib/settings-handlers.js');
+
+let passed = 0;
+function check(name, fn) {
+  try { fn(); console.log('  ok -', name); passed++; }
+  catch (e) { console.error('  FAIL -', name, e.message); process.exitCode = 1; }
+}
+
+check('autoLaunch handler coerces truthy to boolean', () => {
+  const r = applyPatch({ autoLaunch: false }, { key: 'autoLaunch', value: 'yes' });
+  assert.strictEqual(r.autoLaunch, true);
+});
+
+check('maxItems accepts valid number', () => {
+  const r = applyPatch({ maxItems: 500 }, { key: 'maxItems', value: 500 });
+  assert.strictEqual(r.maxItems, 500);
+});
+
+check('displayLimit accepts valid enum and falls back on invalid', () => {
+  const r1 = applyPatch({ displayLimit: 300 }, { key: 'displayLimit', value: 500 });
+  assert.strictEqual(r1.displayLimit, 500);
+  const r2 = applyPatch({}, { key: 'displayLimit', value: 9999 });
+  assert.strictEqual(r2.displayLimit, 300);
+});
+
+check('unknown key is a no-op (returns shallow copy)', () => {
+  const r = applyPatch({}, { key: 'unknown', value: 1 });
+  assert.deepStrictEqual(r, {});
+});
+
+check('dataDir 刻意没有 handler（只能走 settings:choose-dir）', () => {
+  const r = applyPatch({ dataDir: 'D:\\Old' }, { key: 'dataDir', value: 'D:\\New' });
+  assert.strictEqual(r.dataDir, 'D:\\Old', 'settings:set dataDir 必须是 no-op，否则运行中的库与配置分叉');
+});
+
+check('hotkey accepts preset values and falls back on invalid', () => {
+  const r1 = applyPatch({ hotkey: 'Ctrl+Alt+V' }, { key: 'hotkey', value: 'Alt+Shift+V' });
+  assert.strictEqual(r1.hotkey, 'Alt+Shift+V');
+  const r2 = applyPatch({ hotkey: 'Ctrl+Alt+V' }, { key: 'hotkey', value: '' });
+  assert.strictEqual(r2.hotkey, '', '空串是合法的「禁用」');
+  const r3 = applyPatch({ hotkey: 'Ctrl+Alt+V' }, { key: 'hotkey', value: 'Super+X' });
+  assert.strictEqual(r3.hotkey, 'Ctrl+Alt+V', '白名单外回落默认');
+});