Code cleanup.

src/TwigExtension.php

@@ -77,7 +77,6 @@ class TwigExtension extends \Twig_Extension {
     if ($block && $this->entityAccess($block)) {
       return $entity_type_manager->getViewBuilder('block')->view($block);
     }
-    return NULL;
   }
 
   /**
@@ -145,7 +144,6 @@ class TwigExtension extends \Twig_Extension {
       $render_controller = $entity_type_manager->getViewBuilder($entity_type);
       return $render_controller->view($entity, $view_mode, $langcode);
     }
-    return NULL;
   }
 
   /**
@@ -178,7 +176,6 @@ class TwigExtension extends \Twig_Extension {
         return $entity->{$field_name}->view($view_mode);
       }
     }
-    return NULL;
   }
 
   /**
@@ -373,6 +370,7 @@ class TwigExtension extends \Twig_Extension {
    *   in an <img> tag. Requesting the URL will cause the image to be created.
    */
   public function imageStyle($path, $style) {
+    /** @var \Drupal\Image\ImageStyleInterface $image_style */
     if ($image_style = ImageStyle::load($style)) {
       return file_url_transform_relative($image_style->buildUrl($path));
     }

tests/twig_tweak_test/twig_tweak_test.info.yml

@@ -4,5 +4,5 @@ description: Support module for Tweak twig testing.
 package: Testing
 core: 8.x
 dependencies:
-  - twig_tweak
-  - node
+  - drupa:twig_tweak
+  - drupal:node