Add a simple (first) test for localetime Handlebars helper

package.json

@@ -12,14 +12,14 @@
   },
   "homepage": "https://thelounge.github.io/",
   "scripts": {
-    "coverage": "istanbul cover node_modules/mocha/bin/_mocha -r test/fixtures/env.js test/**/*.js",
+    "coverage": "istanbul cover node_modules/mocha/bin/_mocha",
     "start": "node index",
     "build": "npm-run-all build:*",
     "build:font-awesome": "node scripts/build-fontawesome.js",
     "build:libs": "uglifyjs client/js/libs/*.js client/js/libs/jquery/*.js client/js/libs/handlebars/*.js -o client/js/libs.min.js --source-map client/js/libs.min.js.map --source-map-url libs.min.js.map -p relative",
     "build:handlebars": "handlebars client/views/ -e tpl -f client/js/lounge.templates.js",
     "test": "npm-run-all -c test:mocha lint",
-    "test:mocha": "mocha -r test/fixtures/env.js test/**/*.js",
+    "test:mocha": "mocha",
     "lint": "npm-run-all -c lint:js lint:css",
     "lint:js": "npm-run-all -c lint:js:es5 lint:js:es6",
     "lint:js:es5": "eslint --parser-options=\"ecmaVersion:5\" client/",

test/client/js/libs/handlebars/localetimeTest.js

@@ -0,0 +1,25 @@
+"use strict";
+
+const Handlebars = global.Handlebars = require("handlebars");
+const expect = require("chai").expect;
+
+require("../../../../../client/js/libs/handlebars/localetime");
+
+describe("localetime Handlebars helper", () => {
+
+	it("should render a human-readable date", () => {
+		const template = Handlebars.compile("{{localetime time}}");
+
+		// 12PM in UTC time
+		const date = new Date("2014-05-22T12:00:00");
+
+		// Offset between UTC and local timezone
+		const offset = date.getTimezoneOffset() * 60 * 1000;
+
+		// Pretend local timezone is UTC by moving the clock of that offset
+		const time = date.getTime() + offset;
+
+		expect(template({time: time})).to.equal("5/22/2014, 12:00:00 PM");
+	});
+
+});

test/mocha.opts

@@ -0,0 +1,2 @@
+--require test/fixtures/env
+--recursive