* refactored with entity service, so the code can be tested

test/AppTest/Action/Article/ListActionTest.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace AppTest\Action\Article;
+
+use App\Action\Article\ListAction;
+use App\Entity\User;
+use App\Service\Article\ArticleService;
+use App\Service\EntityServiceInterface;
+use Zend\Diactoros\Response;
+use Zend\Diactoros\ServerRequest;
+
+class ListActionTest extends \PHPUnit_Framework_TestCase
+{
+
+    /** @var EntityServiceInterface */
+    protected $entityService;
+
+    protected function setUp()
+    {
+        $user = new User();
+
+        $entityService = $this->prophesize(ArticleService::class);
+        $entityService->willImplement(EntityServiceInterface::class);
+        $entityService->getList()->willReturn([]);
+
+        $this->entityService = $entityService;
+    }
+
+    public function testResponse()
+    {
+        $page     = new ListAction($this->entityService->reveal());
+        $response = $page(new ServerRequest(['/api/article']), new Response(), function () {
+            
+        });
+
+        $this->assertTrue($response instanceof Response);
+    }
+}

test/AppTest/Action/Article/ListFactoryTest.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace AppTest\Action\Article;
+
+use App\Action\Article\ListAction;
+use App\Action\Article\ListFactory;
+use App\Service\Article\ArticleService;
+use Interop\Container\ContainerInterface;
+use Zend\Expressive\Template\TemplateRendererInterface;
+
+class ListFactoryTest extends \PHPUnit_Framework_TestCase
+{
+
+    /** @var ContainerInterface */
+    protected $container;
+
+    protected function setUp()
+    {
+        $this->container = $this->prophesize(ContainerInterface::class);
+        $articleService  = $this->prophesize(ArticleService::class);
+
+        $this->container->get(ArticleService::class)->willReturn($articleService);
+    }
+
+    public function testFactoryWithoutTemplate()
+    {
+        $factory = new ListFactory();
+        $this->container->has(TemplateRendererInterface::class)->willReturn(false);
+
+        $this->assertTrue($factory instanceof ListFactory);
+
+        $page = $factory($this->container->reveal());
+
+        $this->assertTrue($page instanceof ListAction);
+    }
+
+    public function testFactoryWithTemplate()
+    {
+        $factory = new ListFactory();
+        $this->container->has(TemplateRendererInterface::class)->willReturn(true);
+        $this->container
+            ->get(TemplateRendererInterface::class)
+            ->willReturn($this->prophesize(TemplateRendererInterface::class));
+
+        $this->assertTrue($factory instanceof ListFactory);
+
+        $homePage = $factory($this->container->reveal());
+
+        $this->assertTrue($homePage instanceof ListAction);
+    }
+}