fix: test problems jest dom and paragon (#311)

jest.config.js

@@ -18,4 +18,8 @@ module.exports = createConfig('jest', {
   ],
   testTimeout: 120000,
   testEnvironment: 'jsdom',
+  moduleNameMapper: {
+    '^@openedx/paragon$': '<rootDir>/mockParagon.js',
+    '^@openedx/paragon/(.*)$': '<rootDir>/mockParagon.js',
+  },
 });

mockParagon.js

@@ -0,0 +1 @@
+module.exports = {};

src/setupTest.js

@@ -1,6 +1,6 @@
 /* eslint-disable import/no-extraneous-dependencies */
 import '@testing-library/jest-dom';
-import '@testing-library/jest-dom/extend-expect';
+// breaking change here: https://github.com/testing-library/jest-dom/releases/tag/v6.0.0
 
 import Enzyme from 'enzyme';
 import Adapter from '@wojtekmaj/enzyme-adapter-react-17';