diff --git a/.github/workflows/deploy-githubpages.yml b/.github/workflows/deploy-githubpages.yml
index 9189aff..83b8b93 100644
--- a/.github/workflows/deploy-githubpages.yml
+++ b/.github/workflows/deploy-githubpages.yml
@@ -1,5 +1,5 @@
 # Simple workflow for deploying static content to GitHub Pages
-name: Deploy static content to Pages
+name: Deploy GitHub Pages
 
 on:
   # Runs on pushes targeting the default branch
diff --git a/.github/workflows/js-unittest.yml b/.github/workflows/js-unittest.yml
new file mode 100644
index 0000000..327f27f
--- /dev/null
+++ b/.github/workflows/js-unittest.yml
@@ -0,0 +1,25 @@
+name: Jest JS Unit Test
+
+on:
+  pull_request:
+    branches:
+    - main
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  # Single deploy job since we're just deploying
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Install apt updates
+        run: sudo apt -y update; sudo apt -y upgrade;
+      - name: Install prerequisites
+        run: sudo apt install -y nodejs npm;
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Install dependencies
+        run: sudo npm install
+      - name: Run tests
+        run: sudo npm test
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..4f2c69d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+**/.devcontainer/*
+**/node_modules/*
+**/package-lock.json
\ No newline at end of file
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..c845db1
--- /dev/null
+++ b/package.json
@@ -0,0 +1,10 @@
+{
+  "name": "food-journal",
+  "version": "1.0.0",
+  "scripts": {
+    "test": "mocha --recursive **/*.test.js"
+  },
+  "dependencies": {
+    "mocha": "10"
+  }
+}
diff --git a/testenv/testenv.js b/testenv/testenv.js
new file mode 100644
index 0000000..e62cfc3
--- /dev/null
+++ b/testenv/testenv.js
@@ -0,0 +1,28 @@
+module.exports = {environment};
+
+function environment () {
+	const localStorageMock = (function () {
+		let store = {};
+		return {
+			getItem(key) {
+				return store[key];
+			},
+			setItem(key, value) {
+				store[key] = value;
+			},
+			clear() {
+				store = {};
+			},
+			removeItem(key) {
+				delete store[key];
+			},
+			getAll() {
+				return store;
+			},
+		};
+	})();
+
+	let window = {};
+	Object.defineProperty(window, "localStorage", { value: localStorageMock });
+	return window;
+}
\ No newline at end of file
diff --git a/testenv/testenv.test.js b/testenv/testenv.test.js
new file mode 100644
index 0000000..d274fb8
--- /dev/null
+++ b/testenv/testenv.test.js
@@ -0,0 +1,80 @@
+const {environment} = require("./testenv.js");
+var assert = require('assert');
+var {saveToLocal, getFromLocal, removeFromLocal, clearLocal} = require('./testenv_helpers');
+
+beforeEach(() => {
+	window = environment();
+});
+
+describe("test localStorage mock", () => {
+	it("test save and fetch", () => {
+		saveToLocal("testkey1", "testvalue1");
+		saveToLocal("testkey2", "testvalue2");
+		saveToLocal("testkey3", "testvalue3");
+		saveToLocal("testkey4", "testvalue4");
+
+		assert.equal(getFromLocal("testkey1"), "testvalue1");
+		assert.equal(getFromLocal("testkey2"), "testvalue2");
+		assert.equal(getFromLocal("testkey3"), "testvalue3");
+		assert.equal(getFromLocal("testkey4"), "testvalue4");
+
+		saveToLocal("testkey6", "testvalue5");
+		assert.equal(getFromLocal("testkey6"), "testvalue5");
+	});
+
+	it("test window locality", () => {
+		assert.equal(getFromLocal("testkey1"), null);
+		assert.equal(getFromLocal("testkey2"), null);
+		assert.equal(getFromLocal("testkey3"), null);
+		assert.equal(getFromLocal("testkey4"), null);
+	});
+
+	it("test delete and fetch", () => {
+		saveToLocal("testkey1", "testvalue1");
+		saveToLocal("testkey2", "testvalue2");
+		saveToLocal("testkey3", "testvalue3");
+		saveToLocal("testkey4", "testvalue4");
+
+		removeFromLocal("testkey3");
+
+		assert.equal(getFromLocal("testkey1"), "testvalue1");
+		assert.equal(getFromLocal("testkey2"), "testvalue2");
+		assert.equal(getFromLocal("testkey3"), null);
+		assert.equal(getFromLocal("testkey4"), "testvalue4");
+
+		removeFromLocal("testkey1");
+
+		assert.equal(getFromLocal("testkey1"), null);
+		assert.equal(getFromLocal("testkey2"), "testvalue2");
+		assert.equal(getFromLocal("testkey3"), null);
+		assert.equal(getFromLocal("testkey4"), "testvalue4");
+
+		removeFromLocal("testkey4");
+		
+		assert.equal(getFromLocal("testkey1"), null);
+		assert.equal(getFromLocal("testkey2"), "testvalue2");
+		assert.equal(getFromLocal("testkey3"), null);
+		assert.equal(getFromLocal("testkey4"), null);
+
+		removeFromLocal("testkey2");
+		
+		assert.equal(getFromLocal("testkey1"), null);
+		assert.equal(getFromLocal("testkey2"), null);
+		assert.equal(getFromLocal("testkey3"), null);
+		assert.equal(getFromLocal("testkey4"), null);
+	});
+
+	it("test clear and fetch", () => {
+		saveToLocal("testkey1", "testvalue1");
+		saveToLocal("testkey2", "testvalue2");
+		saveToLocal("testkey3", "testvalue3");
+		saveToLocal("testkey4", "testvalue4");
+
+		clearLocal();
+
+		assert.equal(getFromLocal("testkey1"), null);
+		assert.equal(getFromLocal("testkey2"), null);
+		assert.equal(getFromLocal("testkey3"), null);
+		assert.equal(getFromLocal("testkey4"), null);
+	});
+});
\ No newline at end of file
diff --git a/testenv/testenv_helpers.js b/testenv/testenv_helpers.js
new file mode 100644
index 0000000..469adc5
--- /dev/null
+++ b/testenv/testenv_helpers.js
@@ -0,0 +1,17 @@
+module.exports = {saveToLocal, getFromLocal, removeFromLocal, clearLocal};
+
+function saveToLocal (k, v) {
+	window.localStorage.setItem(k, v);
+}
+
+function getFromLocal (k) {
+	return window.localStorage.getItem(k);
+}
+
+function removeFromLocal (k) {
+	window.localStorage.removeItem(k);
+}
+
+function clearLocal () {
+	window.localStorage.clear();
+} 
\ No newline at end of file