Upgrade versions

* NodeJS: v16
* NPM: v8
* Jest: v27
* Mongoose: v6

And fix some small issues along the way

README.md

@@ -36,9 +36,9 @@ It is NOT recommended to invoke `make` targets from the CI/CD, but rather to uti
 
 The following software must be installed and available in your `${PATH}`:
 
-* `node` ([NodeJS](https://nodejs.org/en/download)): latest v14
-* `npm` ([npm](https://www.npmjs.com/get-npm)): latest v6
-* `mongod` ([MongoDB](https://docs.mongodb.com/manual/installation/)): latest v4.2
+* `node` ([NodeJS](https://nodejs.org/en/download)): latest v16
+* `npm` ([npm](https://www.npmjs.com/get-npm)): latest v8
+* `mongod` ([MongoDB](https://docs.mongodb.com/manual/installation/)): latest v4.4
 
 *NOTE: the application in this repository has not been tested with versions newer than that*
 

app/client/package.json

@@ -13,13 +13,13 @@
   "devDependencies": {
     "@babel/core": "7.9.0",
     "@svgr/webpack": "4.3.3",
-    "@testing-library/jest-dom": "^5.14.1",
-    "@testing-library/react": "^12.0.0",
-    "@testing-library/user-event": "^13.2.1",
+    "@testing-library/jest-dom": "^5.15.0",
+    "@testing-library/react": "^12.1.2",
+    "@testing-library/user-event": "^13.0.0",
     "@typescript-eslint/eslint-plugin": "^2.10.0",
     "@typescript-eslint/parser": "^2.10.0",
     "babel-eslint": "10.1.0",
-    "babel-jest": "^24.9.0",
+    "babel-jest": "^27.3.1",
     "babel-loader": "8.1.0",
     "babel-plugin-named-asset-import": "^0.3.6",
     "babel-preset-react-app": "^9.1.2",
@@ -40,9 +40,9 @@
     "fs-extra": "^8.1.0",
     "html-webpack-plugin": "4.0.0-beta.11",
     "identity-obj-proxy": "3.0.0",
-    "jest": "24.9.0",
-    "jest-environment-jsdom-fourteen": "1.0.1",
-    "jest-resolve": "24.9.0",
+    "jest": "27.3.1",
+    "jsdom": "^18.0.1",
+    "jest-resolve": "27.3.1",
     "jest-watch-typeahead": "0.4.2",
     "mini-css-extract-plugin": "0.9.0",
     "optimize-css-assets-webpack-plugin": "5.0.3",
@@ -52,7 +52,7 @@
     "postcss-normalize": "8.0.1",
     "postcss-preset-env": "6.7.0",
     "postcss-safe-parser": "4.0.1",
-    "react-app-polyfill": "^1.0.6",
+    "react-app-polyfill": "^2.0.0",
     "react-dev-utils": "^10.2.1",
     "resolve": "1.15.0",
     "resolve-url-loader": "3.1.1",
@@ -87,8 +87,8 @@
     ]
   },
   "engines": {
-    "node": "^14.15.5",
-    "npm": "^7.24.0"
+    "node": "^16.13.0",
+    "npm": "^8.1.3"
   },
   "jest": {
     "roots": [
@@ -108,7 +108,7 @@
       "<rootDir>/src/**/__tests__/**/*.{js,jsx,ts,tsx}",
       "<rootDir>/src/**/*.{spec,test}.{js,jsx,ts,tsx}"
     ],
-    "testEnvironment": "jest-environment-jsdom-fourteen",
+    "testEnvironment": "jsdom",
     "transform": {
       "^.+\\.(js|jsx|ts|tsx)$": "<rootDir>/node_modules/babel-jest",
       "^.+\\.css$": "<rootDir>/config/jest/cssTransform.js",

app/client/src/components/AddTodo/AddTodo.test.js

@@ -77,4 +77,4 @@ test('api interaction', async () => {
     }));
 
     apiMock.mockRestore();
-});
\ No newline at end of file
+});

app/server/package.json

@@ -11,8 +11,8 @@
   },
   "devDependencies": {
     "env-cmd": "^10.1.0",
-    "jest": "^26.6.3",
-    "nodemon": "^2.0.7"
+    "jest": "^27.3.1",
+    "nodemon": "^2.0.14"
   },
   "dependencies": {
     "bcryptjs": "^2.4.3",
@@ -21,11 +21,11 @@
     "express": "^4.17.1",
     "helmet": "^3.22.0",
     "jsonwebtoken": "^8.5.1",
-    "mongoose": "^5.11.20",
+    "mongoose": "^6.0.12",
     "validator": "^13.0.0"
   },
   "engines": {
-    "node": "^14.15.5",
-    "npm": "^7.24.0"
+    "node": "^16.13.0",
+    "npm": "^8.1.3"
   }
 }

app/server/src/db/mongo.js

@@ -11,7 +11,7 @@ const CONNECTION_EVENTS = [
 if( process.env.NODE_ENV === 'production' ){
     CONNECTION_EVENTS.forEach(( eventName )=>{
         return mongoose.connection.on( eventName, ()=>{
-            console.log( `Connection state changed to: ${ eventName }` );
+            console.log( `DB connection state changed to: ${ eventName }` );
         });
     });
 }
@@ -20,13 +20,9 @@ if( process.env.NODE_ENV === 'production' ){
 const mongooseInstance_ = mongoose.connect(
     process.env.MONGODB_URL,
     {
-        useNewUrlParser: true,
-        useCreateIndex: true,
-        useFindAndModify: false,
-
-        useUnifiedTopology: true,
-        heartbeatFrequencyMS: 1000 * 5,         // 1 sec * 5
-        serverSelectionTimeoutMS: 1000 * 10     // 1 sec * 10
+        keepAlive: true,
+        keepAliveInitialDelay: 300000,  // 1 sec * 300 = 5 min
+        connectTimeoutMS: 1000 * 10     // 1 sec * 10
     }
 );
 
@@ -36,6 +32,7 @@ mongooseInstance_
     })
     .catch(( err )=>{
         console.error( `Cannot connect to database: ${ process.env.MONGODB_URL }` );
+        console.error( err );
     });
 
 

app/server/src/middlewares/auth.test.js

@@ -48,8 +48,8 @@ describe('Testing the authorization middleware', () => {
     });
 
     test('should sent a 401 status code, if the user could not be found', async () => {
-        spyOn(jwt, 'verify').mockReturnValue(token);
-        spyOn(Users, 'findOne').mockResolvedValue(undefined);
+        jest.spyOn(jwt, 'verify').mockReturnValue(token);
+        jest.spyOn(Users, 'findOne').mockResolvedValue(undefined);
 
         await auth(mockRequest, mockResponse, nextFunction);