Replace Enzyme with React Testing Library (#1003)

Author: wojtekmaj

jest.config.json

@@ -9,6 +9,6 @@
     "\\.(css|less)$": "<rootDir>/__mocks__/styleMock.js",
     "pdfjs-dist/(.*)": "pdfjs-dist/legacy/$1"
   },
-  "setupFiles": ["jest-canvas-mock", "<rootDir>/jest.setup.js"],
+  "setupFilesAfterEnv": ["jest-canvas-mock", "@testing-library/jest-dom"],
   "testEnvironment": "<rootDir>/jest.env.js"
 }

jest.setup.js

@@ -88,8 +88,8 @@
     "@babel/plugin-transform-runtime": "^7.15.0",
     "@babel/preset-env": "^7.15.0",
     "@babel/preset-react": "^7.14.0",
-    "@wojtekmaj/enzyme-adapter-react-17": "^0.6.0",
-    "enzyme": "^3.10.0",
+    "@testing-library/jest-dom": "^5.15.0",
+    "@testing-library/react": "^12.1.0",
     "eslint": "^8.5.0",
     "eslint-config-wojtekmaj": "^0.6.5",
     "husky": "^7.0.0",