Add test demonstrating usability in CIUnitTestCase

Author: paulbalandan

tests/system/HomeTest.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace CodeIgniter;
+
+use CodeIgniter\Test\CIUnitTestCase;
+use CodeIgniter\Test\FeatureTestTrait;
+
+class HomeTest extends CIUnitTestCase
+{
+	use FeatureTestTrait;
+
+	public function testPageLoadsSuccessfully()
+	{
+		$response = $this->get('/');
+		$this->assertTrue($response->isOK());
+	}
+}