Chore: Convert FolderPicker test to rtl (#49838)

.betterer.results

@@ -116,9 +116,6 @@ exports[`no enzyme tests`] = {
     "public/app/core/components/QueryOperationRow/QueryOperationRow.test.tsx:2026575657": [
       [0, 26, 13, "RegExp match", "2409514259"]
     ],
-    "public/app/core/components/Select/FolderPicker.test.tsx:993468764": [
-      [0, 19, 13, "RegExp match", "2409514259"]
-    ],
     "public/app/core/components/Select/MetricSelect.test.tsx:3351544014": [
       [0, 19, 13, "RegExp match", "2409514259"]
     ],

public/app/core/components/Select/FolderPicker.test.tsx

@@ -1,6 +1,7 @@
-import { shallow } from 'enzyme';
+import { render, screen } from '@testing-library/react';
 import React from 'react';
 
+import { selectors } from '@grafana/e2e-selectors';
 import * as api from 'app/features/manage-dashboards/state/actions';
 
 import { DashboardSearchHit } from '../../../features/search/types';
@@ -8,15 +9,16 @@ import { DashboardSearchHit } from '../../../features/search/types';
 import { FolderPicker, getInitialValues } from './FolderPicker';
 
 describe('FolderPicker', () => {
-  it('should render', () => {
+  it('should render', async () => {
     jest
       .spyOn(api, 'searchFolders')
       .mockResolvedValue([
         { title: 'Dash 1', id: 1 } as DashboardSearchHit,
         { title: 'Dash 2', id: 2 } as DashboardSearchHit,
       ]);
-    const wrapper = shallow(<FolderPicker onChange={jest.fn()} />);
-    expect(wrapper).toMatchSnapshot();
+
+    render(<FolderPicker onChange={jest.fn()} />);
+    expect(await screen.findByTestId(selectors.components.FolderPicker.containerV2)).toBeInTheDocument();
   });
 });
 

public/app/core/components/Select/__snapshots__/FolderPicker.test.tsx.snap

@@ -1,19 +0,0 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
-
-exports[`FolderPicker should render 1`] = `
-<div
-  data-testid="data-testid Folder picker select container"
->
-  <AsyncSelect
-    allowCustomValue={false}
-    aria-label="Select a folder"
-    defaultOptions={true}
-    defaultValue={null}
-    loadOptions={[Function]}
-    loadingMessage="Loading folders..."
-    onChange={[Function]}
-    onCreateOption={[Function]}
-    value={null}
-  />
-</div>
-`;