#20: Fix phpcs

Author: Lars Roettig

Magento2/Sniffs/Performance/ForeachArrayMergeSniff.php

@@ -9,6 +9,9 @@
 use PHP_CodeSniffer\Files\File;
 use PHP_CodeSniffer\Sniffs\Sniff;
 
+/**
+ * Detects array_merge(...) is used in a loop and is a resources greedy construction.
+ */
 class ForeachArrayMergeSniff implements Sniff
 {
     /**

Magento2/Tests/Performance/ForeachArrayMergeUnitTest.inc

@@ -16,7 +16,7 @@ $options = [];
 $itemCount = count($configurationSources);
 for ($i = 0; $i <= $itemCount; $i++) {
     $source = $options[$itemCount];
-    $options = array_merge($options, $source));
+    $options = array_merge($options, $source);
 }
 
 class SelectBuilder

Magento2/Tests/Performance/ForeachArrayMergeUnitTest.php

@@ -3,14 +3,15 @@
  * Copyright © Magento. All rights reserved.
  * See COPYING.txt for license details.
  */
+
 namespace Magento2\Tests\Performance;
 
 use PHP_CodeSniffer\Tests\Standards\AbstractSniffUnitTest;
 
 /**
  * Class EmptyCheckUnitTest
  */
-class ForeachArrayMergeUnitTest  extends AbstractSniffUnitTest
+class ForeachArrayMergeUnitTest extends AbstractSniffUnitTest
 {
     /**
      * @inheritdoc
@@ -27,7 +28,8 @@ public function getWarningList()
     {
         return [
             11 => 1,
-            19 => 1
+            19 => 1,
+            41 => 1
         ];
     }
 }