Tests run successfully

.babelrc

@@ -0,0 +1,9 @@
+{
+  "presets": [
+    ["@babel/preset-env", {
+      "targets": {
+        "node": "current"
+      }
+    }]
+  ]
+}

babel.config.json

@@ -0,0 +1,12 @@
+{
+  "presets": [
+    [
+      "@babel/preset-env",
+      {
+        "targets": {
+          "node": "current"
+        }
+      }
+    ]
+  ]
+}

package.json

@@ -13,12 +13,57 @@
     "react-scripts": "5.0.1",
     "web-vitals": "^2.1.4"
   },
+  "devDependencies": {
+    "@babel/core": "^7.28.0",
+    "@babel/preset-env": "^7.28.0",
+    "@types/jest": "^29.5.5",
+    "babel-jest": "^29.7.0",
+    "jest": "^29.7.0",
+    "jest-environment-jsdom": "^29.7.0",
+    "jsdom": "^22.1.0"
+  },
   "scripts": {
     "start": "react-scripts start",
     "build": "react-scripts build",
     "test": "react-scripts test",
+    "test:manual": "jest tests/test.js --testEnvironment=jsdom --verbose",
+    "test:manual:watch": "jest tests/test.js --testEnvironment=jsdom --verbose --watch",
+    "test:manual:coverage": "jest tests/test.js --testEnvironment=jsdom --verbose --coverage",
+    "test:critical": "jest tests/test.js --testEnvironment=jsdom --testNamePattern=\"CR-\" --verbose",
+    "test:high": "jest tests/test.js --testEnvironment=jsdom --testNamePattern=\"HR-\" --verbose",
+    "test:medium": "jest tests/test.js --testEnvironment=jsdom --testNamePattern=\"MR-\" --verbose",
+    "test:low": "jest tests/test.js --testEnvironment=jsdom --testNamePattern=\"LR-\" --verbose",
+    "test:runner": "node test-runner.js",
     "eject": "react-scripts eject"
   },
+  "jest": {
+    "testEnvironment": "jsdom",
+    "setupFilesAfterEnv": [
+      "<rootDir>/tests/setup.js"
+    ],
+    "moduleFileExtensions": [
+      "js",
+      "json"
+    ],
+    "transform": {
+      "^.+\\.js$": "babel-jest"
+    },
+    "testMatch": [
+      "**/tests/**/*.test.js",
+      "**/tests/**/test.js"
+    ],
+    "collectCoverageFrom": [
+      "script.js",
+      "!**/node_modules/**",
+      "!**/coverage/**"
+    ],
+    "coverageReporters": [
+      "text",
+      "lcov",
+      "html"
+    ],
+    "verbose": true
+  },
   "eslintConfig": {
     "extends": [
       "react-app",
@@ -38,4 +83,4 @@
     ]
   },
   "homepage": "."
-} 
+}