diff --git a/composer.json b/composer.json
index c2f3f31..8504069 100644
--- a/composer.json
+++ b/composer.json
@@ -5,6 +5,7 @@
         }
     },
     "require": {
+        "filp/whoops": "^2.1",
         "xtreamwayz/pimple-container-interop": "^1.0",
         "zendframework/zend-expressive": "^1.0",
         "zendframework/zend-expressive-fastroute": "^1.2",
diff --git a/config/container.php b/config/container.php
index c516330..96fb9db 100644
--- a/config/container.php
+++ b/config/container.php
@@ -2,6 +2,7 @@
 
 use Test\App\HomeAction;
 use Test\App\HomeFactory;
+use Test\App\DummyRenderer;
 use Xtreamwayz\Pimple\Container;
 use Zend\Expressive\Application;
 use Zend\Expressive\Container\ApplicationFactory;
@@ -11,6 +12,7 @@ use Zend\Expressive\Helper\UrlHelperMiddleware;
 use Zend\Expressive\Helper\UrlHelperMiddlewareFactory;
 use Zend\Expressive\Router\FastRouteRouter;
 use Zend\Expressive\Router\RouterInterface;
+use Zend\Expressive\Template\TemplateRendererInterface;
 
 $c = new Container;
 
@@ -20,6 +22,12 @@ $c[RouterInterface::class] = function () { return new FastRouteRouter; };
 $c[UrlHelper::class] = new UrlHelperFactory;
 $c[UrlHelperMiddleware::class] = new UrlHelperMiddlewareFactory;
 $c[HomeAction::class] = new HomeFactory;
+
+$c[TemplateRendererInterface::class] = function () { return new DummyRenderer; };
+$c['Zend\Expressive\Whoops'] = function () { return new Whoops\Run; };
+$c['Zend\Expressive\WhoopsPageHandler'] = function () { return new Whoops\Handler\PrettyPageHandler; };
+$c['Zend\Expressive\FinalHandler'] = new Zend\Expressive\Container\WhoopsErrorHandlerFactory;
+
 $c[Application::class] = new ApplicationFactory;
 
 return $c;
diff --git a/src/App/DummyRenderer.php b/src/App/DummyRenderer.php
new file mode 100644
index 0000000..22a935f
--- /dev/null
+++ b/src/App/DummyRenderer.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace Test\App;
+
+use Zend\Expressive\Template\TemplateRendererInterface;
+
+class DummyRenderer
+implements TemplateRendererInterface
+{
+	protected $paths = array();
+
+	public function render($name, $params = array())
+	{
+		$params = print_r(['params' => $params, 'paths' => $this->paths], true);
+		$params = str_replace("\n", "<br/>\n", $params);
+		$params = str_replace("  ", "&ensp;", $params);
+		return "Render template '$name'<br/>Params: $params";
+	}
+
+	public function addPath($path, $namespace = null)
+	{
+		if ($namespace !== null) $namespace .= '::';
+		$this->paths[] = $namespace . $path;
+	}
+
+	public function getPaths()
+	{
+		return $this->paths;
+	}
+
+	public function addDefaultParam($templateName, $param, $value)
+	{
+		throw new \RuntimeException('Not implemented');
+	}
+}