fix: fixed mock for unit test

package.json

@@ -32,12 +32,12 @@
     "@edx/frontend-enterprise-hotjar": "3.0.0",
     "@edx/frontend-platform": "7.1.0",
     "@edx/openedx-atlas": "^0.6.0",
-    "@openedx/paragon": "^21.11.3",
     "@edx/react-unit-test-utils": "2.0.0",
     "@fortawesome/fontawesome-svg-core": "^1.2.36",
     "@fortawesome/free-brands-svg-icons": "^5.15.4",
     "@fortawesome/free-solid-svg-icons": "^5.15.4",
     "@fortawesome/react-fontawesome": "^0.1.15",
+    "@openedx/paragon": "^21.11.3",
     "@optimizely/react-sdk": "^2.9.2",
     "@redux-beacon/segment": "^1.1.0",
     "@reduxjs/toolkit": "^1.6.1",
@@ -79,8 +79,8 @@
     "whatwg-fetch": "^3.6.2"
   },
   "devDependencies": {
-    "@openedx/frontend-build": "13.0.28",
     "@edx/reactifex": "^2.1.1",
+    "@openedx/frontend-build": "13.0.28",
     "@testing-library/jest-dom": "^5.14.1",
     "@testing-library/react": "^12.1.0",
     "axios-mock-adapter": "^1.20.0",

src/index.test.jsx

@@ -19,6 +19,7 @@ jest.mock('react-dom', () => ({
 
 jest.mock('@edx/frontend-platform', () => ({
   mergeConfig: jest.fn(),
+  ensureConfig: jest.fn(),
   APP_READY: 'app-is-ready-key',
   APP_INIT_ERROR: 'app-init-error',
   initialize: jest.fn(),