From 370015e7c057afb306978b0f95a2ff685d2b1600 Mon Sep 17 00:00:00 2001
From: Daniel Siepmann <coding@daniel-siepmann.de>
Date: Tue, 25 Apr 2017 16:36:12 +0200
Subject: [PATCH] TASK: Refactor code

* Reduce indentation.
* Provide internal API to add new feature with necessary checks.
---
 .../Typo3Update/Feature/Features.php          | 26 ++++++++++++++-----
 1 file changed, 19 insertions(+), 7 deletions(-)

diff --git a/src/Standards/Typo3Update/Feature/Features.php b/src/Standards/Typo3Update/Feature/Features.php
index 386b99c..4db9e97 100644
--- a/src/Standards/Typo3Update/Feature/Features.php
+++ b/src/Standards/Typo3Update/Feature/Features.php
@@ -47,17 +47,29 @@ class Features implements \Iterator
     {
         foreach (Options::getFeaturesConfiguration() as $featureName => $sniffs) {
             if (in_array(get_class($sniff), $sniffs)) {
-                if (!class_implements($featureName, FeatureInterface::class)) {
-                    throw new \Exception(
-                        'Configured Feature "' . $featureName . '" does not implement "' . FeatureInterface::class . '".',
-                        1493115488
-                    );
-                }
-                $this->features[] = $featureName;
+                $this->addFeature($featureName);
             }
         }
     }
 
+    /**
+     * Add the given feature.
+     *
+     * @param string $featureName
+     * @return void
+     */
+    protected function addFeature($featureName)
+    {
+        if (!class_implements($featureName, FeatureInterface::class)) {
+            throw new \Exception(
+                'Configured Feature "' . $featureName . '" does not implement "' . FeatureInterface::class . '".',
+                1493115488
+            );
+        }
+
+        $this->features[] = $featureName;
+    }
+
     // implement Iterator interface:
     public function current()
     {