feat: support nativeElement (#500)

Author: zombieJ

package.json

@@ -45,7 +45,7 @@
     "@babel/runtime": "^7.12.5",
     "array-tree-filter": "^2.1.0",
     "classnames": "^2.3.1",
-    "rc-select": "~14.13.0",
+    "rc-select": "~14.14.0",
     "rc-tree": "~5.8.1",
     "rc-util": "^5.37.0"
   },

tests/index.spec.tsx

@@ -6,6 +6,7 @@ import Cascader from '../src';
 import { addressOptions, addressOptionsForUneven, optionsForActiveMenuItems } from './demoOptions';
 import { mount } from './enzyme';
 import { toRawValues } from '../src/utils/commonUtil';
+import { render } from '@testing-library/react';
 
 describe('Cascader.Basic', () => {
   let selectedValue: any;
@@ -1065,4 +1066,10 @@ describe('Cascader.Basic', () => {
   it('toRawValues undefined', () => {
     expect(toRawValues()).toEqual([]);
   });
+
+  it('nativeElement', () => {
+    const cascaderRef = React.createRef<CascaderRef>();
+    const { container } = render(<Cascader ref={cascaderRef} />);
+    expect(cascaderRef.current?.nativeElement).toEqual(container.querySelector('.rc-cascader'));
+  });
 });