Added some very basic model tests

tests/Models/SettingTest.php

@@ -0,0 +1,28 @@
+<?php
+
+/*
+ * This file is part of Cachet.
+ *
+ * (c) Alt Three Services Limited
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CachetHQ\Tests\Cachet\Models;
+
+use CachetHQ\Cachet\Models\Setting;
+use CachetHQ\Tests\Cachet\AbstractTestCase;
+
+/**
+ * This is the setting model test class.
+ *
+ * @author Graham Campbell <graham@alt-three.com>
+ */
+class SettingTest extends AbstractTestCase
+{
+    public function testValidation()
+    {
+        $this->assertFalse(property_exists(new Setting(), 'rules'));
+    }
+}