【fix】UT

Author: songyumeng

test/common/lang/LangSpec.js

@@ -0,0 +1,23 @@
+import { Lang } from '../../../src/common/lang/Lang';
+
+describe('Lang', () => {
+  const originCookie = window.document.cookie;
+  afterAll(() => {
+    window.document.cookie = originCookie;
+  });
+  afterEach(() => {
+    Lang.code = null;
+  });
+  it('getLang_nocookie', () => {
+    window.document.cookie = '';
+    expect(Lang.getCode()).toBe('zh-CN');
+  });
+  it('getLang_zh-CN', () => {
+    window.document.cookie = 'language=en-US';
+    expect(Lang.getCode()).toBe('en-US');
+  });
+  it('getLang_zh', () => {
+    window.document.cookie = 'language=zh';
+    expect(Lang.getCode()).toBe('zh-CN');
+  });
+});