types: test cases typing

src/image/test/index.spec.ts

@@ -1,4 +1,4 @@
-import { mount } from '@vue/test-utils';
+import { mount } from '../../../test';
 import VanImage from '..';
 import Lazyload from '../../lazyload';
 
@@ -133,8 +133,8 @@ test('should change border radius when using border-radius prop', () => {
     },
   });
 
-  expect(wrapper.element.style.overflow).toEqual('hidden');
-  expect(wrapper.element.style.borderRadius).toEqual('3px');
+  expect(wrapper.style.overflow).toEqual('hidden');
+  expect(wrapper.style.borderRadius).toEqual('3px');
 });
 
 test('should render default slot correctly', () => {