[feature/controller] Add controller functional test with template

PHPBB3-10864

tests/functional/fixtures/ext/foo/bar/config/routing.yml

@@ -5,3 +5,7 @@ foo_bar_controller:
 foo_baz_controller:
     pattern: /foo/baz
     defaults: { _controller: foo_bar.controller:baz }
+
+foo_template_controller:
+    pattern: /foo/template
+    defaults: { _controller: foo_bar.controller:template }

tests/functional/fixtures/ext/foo/bar/config/services.yml

@@ -1,3 +1,6 @@
 services:
     foo_bar.controller:
         class: phpbb_ext_foo_bar_controller
+        arguments:
+            - @controller.helper
+            - @template

tests/functional/fixtures/ext/foo/bar/controller/controller.php

@@ -3,6 +3,14 @@ use Symfony\Component\HttpFoundation\Response;
 
 class phpbb_ext_foo_bar_controller
 {
+	protected $template;
+
+	public function __construct(phpbb_controller_helper $helper, phpbb_template $template)
+	{
+		$this->template = $template;
+		$this->helper = $helper;
+	}
+
 	public function handle()
 	{
 		return new Response('foo/bar controller handle() method', 200);
@@ -12,4 +20,11 @@ class phpbb_ext_foo_bar_controller
 	{
 		return new Response('Value of "test" URL argument is: ' . $test);
 	}
+
+	public function template()
+	{
+		$this->template->assign_var('A_VARIABLE', 'I am a variable');
+
+		return $this->helper->render('foo_bar_body.html');
+	}
 }

tests/functional/fixtures/ext/foo/bar/styles/prosilver/template/foo_bar_body.html

@@ -0,0 +1,3 @@
+<!-- INCLUDE overall_header.html -->
+<div id="content">{A_VARIABLE}</div>
+<!-- INCLUDE overall_footer.html -->