Adding jest to common

.babelrc

@@ -0,0 +1,5 @@
+{
+  "presets": [
+    "@babel/preset-env"
+  ]
+}

.gitignore

@@ -53,3 +53,5 @@ GapsAsJar/*
 !GapsAsJar/start.bat
 !GapsAsJar/gaps.nsi
 .DS_Store
+
+coverage/

GapsWeb/src/main/resources/static/js/modules/common.js

@@ -18,6 +18,21 @@ export function getContextPath(url) {
   return url;
 }
 
+export function getYear(year) {
+  if ((year && year !== -1) && (year && year !== 0)) {
+    return ` (${year})`;
+  }
+  return '';
+}
+
+export function isEqual(a, b) {
+  return a === b;
+}
+
+export function isNotOwned(value) {
+  return !value;
+}
+
 export async function getOwnedMoviesForTable(url, movieContainer, noMovieContainer, moviesTable) {
   const response = await fetch(getContextPath(url), {
     method: 'get',

GapsWeb/src/main/resources/static/js/page/recommended.js

@@ -12,7 +12,7 @@
 /* global Handlebars, SockJS, Stomp */
 /* eslint no-undef: "error" */
 
-import { getContextPath, getRecommendedMoviesForTable } from '../modules/common.min.js';
+import { getContextPath, getRecommendedMoviesForTable, getYear, isEqual, isNotOwned } from '../modules/common.min.js';
 import Payload from '../modules/payload.min.js';
 
 let libraryTitle;
@@ -118,18 +118,9 @@ function copyToClipboard() {
 
 jQuery(($) => {
   Handlebars.registerHelper({
-    isNotOwned(value) {
-      return !value;
-    },
-    isEqual(a, b) {
-      return a === b;
-    },
-    getYear(year) {
-      if (year && (year !== -1 || year !== 0)) {
-        return ` (${year})`;
-      }
-      return '';
-    },
+    isNotOwned,
+    isEqual,
+    getYear,
   });
 
   libraryTitle = $('#libraryTitle');

GapsWeb/src/test/resources/static/js/page/common.test.js

@@ -0,0 +1,33 @@
+import { getYear, isEqual, isNotOwned } from '../../../../../main/resources/static/js/modules/common';
+
+test('Checks for valid year', () => {
+  expect(getYear(2005)).toBe(' (2005)');
+});
+
+test('Checks for year 0', () => {
+  expect(getYear(0)).toBe('');
+});
+
+test('Checks for year -1', () => {
+  expect(getYear(-1)).toBe('');
+});
+
+test('Checks for no year', () => {
+  expect(getYear()).toBe('');
+});
+
+test('Two equal TMDB IDs', () => {
+  expect(isEqual(1234567,1234567)).toBe(true);
+});
+
+test('Two unequal TMDB IDs', () => {
+  expect(isEqual(1234567,7654321)).toBe(false);
+});
+
+test('Should be owned', () => {
+  expect(isNotOwned(true)).toBe(false);
+});
+
+test('Should not be owned', () => {
+  expect(isNotOwned(false)).toBe(true);
+});

build

@@ -16,6 +16,7 @@ JAR_VERSION="GapsWeb/target/GapsWeb-$VERSION.jar"
 ZIP_VERSION="GapsAsJar-$VERSION.zip"
 npm ci
 ./minify
+npm run test
 mvn clean install
 docker buildx build --platform linux/s390x,linux/amd64 -t housewrecker/gaps:latest -f Dockerfile --push .
 #docker buildx build --platform linux/riscv64 -t housewrecker/gaps:risc-latest -f Dockerfile.riscv64 --push .

jest.config.json

@@ -0,0 +1,12 @@
+{
+  "collectCoverage": true,
+  "moduleFileExtensions": [
+    "js",
+    "mjs"
+  ],
+  "transform": {
+    "^.+\\.js$": "babel-jest",
+    "^.+\\.mjs$": "babel-jest"
+  },
+  "testRegex": "((\\.|/*.)(test))\\.js?$"
+}

package.json

@@ -12,10 +12,14 @@
     "uglifyjs-folder": "^2.0.0"
   },
   "devDependencies": {
+    "@babel/core": "^7.14.3",
+    "@babel/node": "^7.14.2",
+    "@babel/preset-env": "^7.14.4",
     "cypress": "^7.4.0",
     "eslint": "^7.10.0",
     "eslint-config-airbnb-base": "^14.2.0",
-    "eslint-plugin-import": "^2.22.1"
+    "eslint-plugin-import": "^2.22.1",
+    "jest": "^27.0.3"
   },
   "scripts": {
     "e2e": "cypress open",
@@ -23,7 +27,8 @@
     "uglifyjs-modules": "rm -f GapsWeb/src/main/resources/static/js/modules/*.min.js && uglifyjs-folder GapsWeb/src/main/resources/static/js/modules/ -eo GapsWeb/src/main/resources/static/js/modules/\n",
     "uglifyjs-pages": "rm -f GapsWeb/src/main/resources/static/js/page/*.min.js && uglifyjs-folder GapsWeb/src/main/resources/static/js/page/ -eo GapsWeb/src/main/resources/static/js/page/\n",
     "eslint-cypress": "./node_modules/.bin/eslint --fix cypress/integration",
-    "eslint-gaps": "./node_modules/.bin/eslint --fix GapsWeb/src/main/resources/static/js"
+    "eslint-gaps": "./node_modules/.bin/eslint --fix GapsWeb/src/main/resources/static/js",
+    "test": "jest --verbose GapsWeb/src/test/resources/static/"
   },
   "repository": {
     "type": "git",