test: Deprecate react-unit-test-utils 3/15 (#655)

src/plugin-slots/WidgetSidebarSlot/__snapshots__/index.test.jsx.snap

@@ -1,14 +0,0 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
-
-exports[`WidgetSidebar snapshots 1`] = `
-<PluginSlot
-  id="org.openedx.frontend.learner_dashboard.widget_sidebar.v1"
-  idAliases={
-    [
-      "widget_sidebar_slot",
-    ]
-  }
->
-  <LookingForChallengeWidget />
-</PluginSlot>
-`;

src/plugin-slots/WidgetSidebarSlot/index.test.jsx

@@ -1,18 +1,26 @@
-import { shallow } from '@edx/react-unit-test-utils';
+import { render, screen } from '@testing-library/react';
 
+import { IntlProvider } from '@edx/frontend-platform/i18n';
+import { reduxHooks } from 'hooks';
 import WidgetSidebarSlot from '.';
 
-jest.mock('widgets/LookingForChallengeWidget', () => 'LookingForChallengeWidget');
+jest.unmock('react');
+jest.unmock('@edx/frontend-platform/i18n');
+jest.unmock('@openedx/paragon');
 
-jest.mock('@openedx/frontend-plugin-framework', () => ({
-  PluginSlot: 'PluginSlot',
+jest.mock('hooks', () => ({
+  reduxHooks: {
+    usePlatformSettingsData: jest.fn(),
+  },
 }));
 
-describe('WidgetSidebar', () => {
-  beforeEach(() => jest.resetAllMocks());
+const courseSearchUrl = 'mock-url';
 
-  test('snapshots', () => {
-    const wrapper = shallow(<WidgetSidebarSlot />);
-    expect(wrapper.snapshot).toMatchSnapshot();
+describe('WidgetSidebar', () => {
+  it('renders PluginSlot with correct children', () => {
+    reduxHooks.usePlatformSettingsData.mockReturnValueOnce({ courseSearchUrl });
+    render(<IntlProvider locale="en"><WidgetSidebarSlot /></IntlProvider>);
+    const pluginSlot = screen.getByText('Looking for a new challenge?');
+    expect(pluginSlot).toBeDefined();
   });
 });