chore: adjust path of test utils (#4997)

src/loading/test/demo.spec.js

@@ -1,4 +1,4 @@
 import Demo from '../demo';
-import demoTest from '../../../test/demo-test';
+import { snapshotDemo } from '../../../test/demo';
 
-demoTest(Demo);
+snapshotDemo(Demo);

src/loading/test/index.spec.js

@@ -1,4 +1,4 @@
-import { mount } from '../../../test/utils';
+import { mount } from '../../../test';
 import Loading from '..';
 
 test('size prop', () => {