ENGCOM-844: Improve array output format for etc.php and config.php #14042

 - Merge Pull Request #14042 from avstudnitz/magento2:improve-array-output
 - Merged commits:
   1. e621f57

Author: magento-engcom-team

lib/internal/Magento/Framework/App/DeploymentConfig/Writer/PhpFormatter.php

@@ -12,9 +12,9 @@
 class PhpFormatter implements FormatterInterface
 {
     /**
-     * 2 space indentation for array formatting
+     * 4 space indentation for array formatting
      */
-    const INDENT = '  ';
+    const INDENT = '    ';
 
     /**
      * Format deployment configuration.
@@ -39,7 +39,7 @@ public function format($data, array $comments = [])
      * @param string $prefix
      * @return string
      */
-    private function formatData($data, $comments = [], $prefix = '  ')
+    private function formatData($data, $comments = [], $prefix = '    ')
     {
         $elements = [];
 
@@ -56,13 +56,12 @@ private function formatData($data, $comments = [], $prefix = '  ')
                     $elements[] = $prefix . " */";
                 }
 
-                $elements[] = $prefix . $this->varExportShort($key) . ' => ' .
-                    (!is_array($value) ? $this->varExportShort($value) . ',' : '');
-
                 if (is_array($value)) {
-                    $elements[] = $prefix . '[';
-                    $elements[] = $this->formatData($value, [], '  ' . $prefix);
+                    $elements[] = $prefix . $this->varExportShort($key) . ' => [';
+                    $elements[] = $this->formatData($value, [], '    ' . $prefix);
                     $elements[] = $prefix . '],';
+                } else {
+                    $elements[] = $prefix . $this->varExportShort($key) . ' => ' . $this->varExportShort($value) . ',';
                 }
             }
             return implode("\n", $elements);

lib/internal/Magento/Framework/App/Test/Unit/DeploymentConfig/Writer/PhpFormatterTest.php

@@ -56,101 +56,91 @@ public function formatWithCommentDataProvider()
         $expectedResult1 = <<<TEXT
 <?php
 return [
-  'ns1' => 
-  [
-    's1' => 
-    [
-      0 => 's11',
-      1 => 's12',
+    'ns1' => [
+        's1' => [
+            0 => 's11',
+            1 => 's12',
+        ],
+        's2' => [
+            0 => 's21',
+            1 => 's22',
+        ],
     ],
-    's2' => 
-    [
-      0 => 's21',
-      1 => 's22',
-    ],
-  ],
-  /**
-   * For the section: ns2
-   * comment for namespace 2
-   */
-  'ns2' => 
-  [
-    's1' => 
-    [
-      0 => 's11',
+    /**
+     * For the section: ns2
+     * comment for namespace 2
+     */
+    'ns2' => [
+        's1' => [
+            0 => 's11',
+        ],
     ],
-  ],
-  'ns3' => 'just text',
-  'ns4' => 'just text',
+    'ns3' => 'just text',
+    'ns4' => 'just text',
 ];
 
 TEXT;
         $expectedResult2 = <<<TEXT
 <?php
 return [
-  /**
-   * For the section: ns1
-   * comment for' namespace 1
-   */
-  'ns1' => 
-  [
-    's1' => 
-    [
-      0 => 's11',
-      1 => 's12',
-    ],
-    's2' => 
-    [
-      0 => 's21',
-      1 => 's22',
+    /**
+     * For the section: ns1
+     * comment for' namespace 1
+     */
+    'ns1' => [
+        's1' => [
+            0 => 's11',
+            1 => 's12',
+        ],
+        's2' => [
+            0 => 's21',
+            1 => 's22',
+        ],
     ],
-  ],
-  /**
-   * For the section: ns2
-   * comment for namespace 2.
-   * Next comment for' namespace 2
-   */
-  'ns2' => 
-  [
-    's1' => 
-    [
-      0 => 's11',
+    /**
+     * For the section: ns2
+     * comment for namespace 2.
+     * Next comment for' namespace 2
+     */
+    'ns2' => [
+        's1' => [
+            0 => 's11',
+        ],
     ],
-  ],
-  /**
-   * For the section: ns3
-   * comment for" namespace 3
-   */
-  'ns3' => 'just text',
-  /**
-   * For the section: ns4
-   * comment for namespace 4
-   */
-  'ns4' => 'just text',
+    /**
+     * For the section: ns3
+     * comment for" namespace 3
+     */
+    'ns3' => 'just text',
+    /**
+     * For the section: ns4
+     * comment for namespace 4
+     */
+    'ns4' => 'just text',
 ];
 
 TEXT;
 
         $expectedResult3 = <<<TEXT
 <?php
 return [
-  'ns1' => [
-    's1' => [
-      's11',
-      's12'
+    'ns1' => [
+        's1' => [
+            's11',
+            's12'
+        ],
+        's2' => [
+            's21',
+            's22'
+        ]
+    ],
+    'ns2' => [
+        's1' => [
+            's11'
+        ]
     ],
-    's2' => [
-      's21',
-      's22'
-    ]
-  ],
-  'ns2' => [
-    's1' => [
-      's11'
-    ]
-  ],
-  'ns3' => 'just text',
-  'ns4' => 'just text'
+    'ns3' => 'just text',
+    'ns4' => 'just text'
 ];
 
 TEXT;