types: test cases typing

src/badge/test/index.spec.ts

@@ -1,5 +1,5 @@
 import Badge from '..';
-import { mount } from '@vue/test-utils';
+import { mount } from '../../../test';
 
 test('should render nothing when content is empty string', () => {
   const wrapper = mount(Badge, {
@@ -52,7 +52,7 @@ test('should change dot position when using offset prop', () => {
     },
   });
 
-  const badge = wrapper.find('.van-badge').element;
+  const badge = wrapper.find('.van-badge');
   expect(badge.style.top).toEqual('4px');
   expect(badge.style.right).toEqual('-2px');
 });
@@ -65,7 +65,7 @@ test('should change dot position when using offset prop without children', () =>
     },
   });
 
-  const badge = wrapper.find('.van-badge').element;
+  const badge = wrapper.find('.van-badge');
   expect(badge.style.marginTop).toEqual('4px');
   expect(badge.style.marginLeft).toEqual('2px');
 });