diff --git a/package-lock.json b/package-lock.json
index 9aa4176b..51e1c695 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10513,6 +10513,12 @@
         }
       }
     },
+    "moment": {
+      "version": "2.24.0",
+      "resolved": "https://registry.npmjs.org/moment/-/moment-2.24.0.tgz",
+      "integrity": "sha512-bV7f+6l2QigeBBZSM/6yTNq4P2fNpSWj/0e7jQcy87A8e7o2nAfP/34/2ky5Vw4B9S446EtIhodAzkFCcR4dQg==",
+      "dev": true
+    },
     "move-concurrently": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/move-concurrently/-/move-concurrently-1.0.1.tgz",
diff --git a/package.json b/package.json
index 880ba3a3..d289721f 100644
--- a/package.json
+++ b/package.json
@@ -73,6 +73,7 @@
 		"jsdom": "^15.0.0",
 		"jsdom-global": "^3.0.2",
 		"node-sass": "^4.11.0",
+		"moment": "^2.24.0",
 		"prettier-eslint": "^8.8.2",
 		"raw-loader": "^2.0.0",
 		"sass-loader": "^7.1.0",
diff --git a/tests/store/storeHelper.spec.js b/tests/store/storeHelper.spec.js
new file mode 100644
index 00000000..8983fad6
--- /dev/null
+++ b/tests/store/storeHelper.spec.js
@@ -0,0 +1,41 @@
+import moment from 'moment'
+import { sort } from '@/store/storeHelper'
+
+global.moment = moment
+
+const tasks = [
+	{
+		id: 1,
+		due: '20191119T183901'
+	},
+	{
+		id: 2,
+		due: '20181119T183901'
+	},
+	{
+		id: 3,
+		due: null
+	},
+	{
+		id: 4,
+		due: '20151119T183901'
+	},
+]
+
+describe('storeHelper', () => {
+	'use strict'
+
+	it('Tests descending sort by due date.', () => {
+		const clonedTasks = tasks.slice(0)
+		const expectedTasks = [tasks[3], tasks[1], tasks[0], tasks[2]]
+		const receivedTasks = sort(clonedTasks, 'due', 0)
+		expect(receivedTasks).toEqual(expectedTasks)
+	})
+
+	it('Tests ascending sort by due date.', () => {
+		const clonedTasks = tasks.slice(0)
+		const expectedTasks = [tasks[2], tasks[0], tasks[1], tasks[3]]
+		const receivedTasks = sort(clonedTasks, 'due', 1)
+		expect(receivedTasks).toEqual(expectedTasks)
+	})
+})