[improvement] rename packages dir to src (#3659)

src/loading/test/index.spec.js

@@ -0,0 +1,25 @@
+import { mount } from '../../../test/utils';
+import Loading from '..';
+
+test('size prop', () => {
+  const wrapper = mount(Loading, {
+    propsData: {
+      size: 20
+    }
+  });
+
+  expect(wrapper).toMatchSnapshot();
+});
+
+test('text-size prop', () => {
+  const wrapper = mount(Loading, {
+    propsData: {
+      textSize: 20
+    },
+    scopedSlots: {
+      default: () => 'Text'
+    }
+  });
+
+  expect(wrapper).toMatchSnapshot();
+});