Added more tests

tests/Middleware/Factory/CliParamsMiddlewareFactoryTest.php

@@ -0,0 +1,29 @@
+<?php
+namespace AcelayaTest\UrlShortener\Middleware\Factory;
+
+use Acelaya\UrlShortener\Middleware\CliParamsMiddleware;
+use Acelaya\UrlShortener\Middleware\Factory\CliParamsMiddlewareFactory;
+use PHPUnit_Framework_TestCase as TestCase;
+use Zend\ServiceManager\ServiceManager;
+
+class CliParamsMiddlewareFactoryTest extends TestCase
+{
+    /**
+     * @var CliParamsMiddlewareFactory
+     */
+    protected $factory;
+
+    public function setUp()
+    {
+        $this->factory = new CliParamsMiddlewareFactory();
+    }
+
+    /**
+     * @test
+     */
+    public function serviceIsCreated()
+    {
+        $instance = $this->factory->__invoke(new ServiceManager(), '');
+        $this->assertInstanceOf(CliParamsMiddleware::class, $instance);
+    }
+}