refactor: depreciate enzyme

move unit test from enzyme to RTL

VAN-1792

src/base-container/components/default-layout/DefaultLayout.test.jsx

@@ -1,50 +1,50 @@
 import React from 'react';
 
 import { IntlProvider } from '@edx/frontend-platform/i18n';
-import { mount } from 'enzyme';
+import { render, screen } from '@testing-library/react';
 
 import { DefaultLargeLayout, DefaultMediumLayout, DefaultSmallLayout } from './index';
 
 describe('Default Layout tests', () => {
   it('should display the form passed as a child in SmallScreenLayout', () => {
-    const smallScreen = mount(
+    render(
       <IntlProvider locale="en">
         <div>
           <DefaultSmallLayout />
-          <form>
+          <form aria-label="form">
             <input type="text" />
           </form>
         </div>
       </IntlProvider>,
     );
-    expect(smallScreen.find('form').exists()).toEqual(true);
+    expect(screen.getByRole('form')).toBeDefined();
   });
 
   it('should display the form passed as a child in MediumScreenLayout', () => {
-    const mediumScreen = mount(
+    render(
       <IntlProvider locale="en">
         <div>
           <DefaultMediumLayout />
-          <form>
+          <form aria-label="form">
             <input type="text" />
           </form>
         </div>
       </IntlProvider>,
     );
-    expect(mediumScreen.find('form').exists()).toEqual(true);
+    expect(screen.getByRole('form')).toBeDefined();
   });
 
   it('should display the form passed as a child in LargeScreenLayout', () => {
-    const largeScreen = mount(
+    render(
       <IntlProvider locale="en">
         <div>
           <DefaultLargeLayout />
-          <form>
+          <form aria-label="form">
             <input type="text" />
           </form>
         </div>
       </IntlProvider>,
     );
-    expect(largeScreen.find('form').exists()).toEqual(true);
+    expect(screen.getByRole('form')).toBeDefined();
   });
 });

src/base-container/tests/BaseContainer.test.jsx

@@ -1,7 +1,7 @@
 import React from 'react';
 
 import { IntlProvider } from '@edx/frontend-platform/i18n';
-import { mount } from 'enzyme';
+import { render } from '@testing-library/react';
 import { Context as ResponsiveContext } from 'react-responsive';
 
 import BaseContainer from '../index';
@@ -12,16 +12,16 @@ const LargeScreen = {
 };
 
 describe('Base component tests', () => {
-  it('should should default layout', () => {
-    const baseContainer = mount(
+  it('should show default layout', () => {
+    const { container } = render(
       <IntlProvider locale="en">
         <BaseContainer />
       </IntlProvider>,
       LargeScreen,
     );
 
-    expect(baseContainer.find('.banner__image').exists()).toBeFalsy();
-    expect(baseContainer.find('.large-screen-svg-primary').exists()).toBeTruthy();
+    expect(container.querySelector('.banner__image')).toBeNull();
+    expect(container.querySelector('.large-screen-svg-primary')).toBeDefined();
   });
 
   it('[experiment] should show image layout for treatment group', () => {
@@ -31,13 +31,13 @@ describe('Base component tests', () => {
       },
     };
 
-    const baseContainer = mount(
+    const { container } = render(
       <IntlProvider locale="en">
         <BaseContainer />
       </IntlProvider>,
       LargeScreen,
     );
 
-    expect(baseContainer.find('.banner__image').exists()).toBeTruthy();
+    expect(container.querySelector('.banner__image')).toBeDefined();
   });
 });