fix: 重构所有定时器测试为 Jest fake timers，彻底解决 CI Run tests 卡死

tests/utils.test.ts: debounce/throttle/sleep 使用 useFakeTimers + advanceTimersByTime; tests/core.test.ts: 历史栈防抖合并测试用 fake timers 替代 400ms setTimeout; tests/plugins.test.ts: autoSave 三个测试用 fake timers 替代 setTimeout/done; README.md: 更新测试徽章为 353 passed; site/index.html, site/demo.html: 更新测试数为 353

tests/plugins.test.ts

@@ -65,15 +65,16 @@ describe('autoSave 插件', () => {
     expect(key).toContain('me-draft-');
   });
 
-  test('change 后内容最终写入 localStorage', (done) => {
+  test('change 后内容最终写入 localStorage', () => {
+    jest.useFakeTimers();
     ed.setValue('autosaved content');
-    // autoSave 默认 delay 1000ms，等 1100ms
-    setTimeout(() => {
-      const key = ed.getDraftKey();
-      const stored = localStorage.getItem(key);
-      expect(stored).toBe('autosaved content');
-      done();
-    }, 1150);
+    const key = ed.getDraftKey();
+    // autoSave 默认 delay 1000ms，未到时间不应保存
+    expect(localStorage.getItem(key)).toBeNull();
+    // 推进时间触发 save
+    jest.advanceTimersByTime(1000);
+    expect(localStorage.getItem(key)).toBe('autosaved content');
+    jest.useRealTimers();
   });
 
   test('clearDraft 清除存储', () => {
@@ -105,16 +106,19 @@ describe('autoSave 自定义配置', () => {
     ed.destroy();
   });
 
-  test('自定义 delay 生效', (done) => {
+  test('自定义 delay 生效', () => {
+    jest.useFakeTimers();
     localStorage.clear();
     const ed = makeEditor();
     ed.use(presetPlugins.autoSave, { delay: 30 });
     ed.setValue('fast');
-    setTimeout(() => {
-      expect(localStorage.getItem(ed.getDraftKey())).toBe('fast');
-      ed.destroy();
-      done();
-    }, 60);
+    // 未到时间不应保存
+    expect(localStorage.getItem(ed.getDraftKey())).toBeNull();
+    // 推进 30ms 触发 save
+    jest.advanceTimersByTime(30);
+    expect(localStorage.getItem(ed.getDraftKey())).toBe('fast');
+    ed.destroy();
+    jest.useRealTimers();
   });
 });
 
@@ -386,14 +390,20 @@ describe('autoSave 插件 - 边界', () => {
     expect(ed.clearDraft()).toBe(ed);
   });
 
-  test('保存触发 autosave 事件', (done) => {
+  test('保存触发 autosave 事件', () => {
+    jest.useFakeTimers();
+    let eventData = null;
     ed.use(presetPlugins.autoSave, { key: 'evt-draft', delay: 10 });
-    ed.on('autosave', (data) => {
-      expect(data.key).toBe('evt-draft');
-      expect(data.value).toBe('triggered');
-      done();
-    });
+    ed.on('autosave', (data) => { eventData = data; });
     ed.setValue('triggered');
+    // 未到时间不应触发事件
+    expect(eventData).toBeNull();
+    // 推进 10ms 触发 save 并 emit 'autosave'
+    jest.advanceTimersByTime(10);
+    expect(eventData).not.toBeNull();
+    expect(eventData.key).toBe('evt-draft');
+    expect(eventData.value).toBe('triggered');
+    jest.useRealTimers();
   });
 
   test('blur 事件立即保存', () => {