MAGETWO-63231: Implementation

Author: shiftedreality

app/code/Magento/Theme/Model/Source/InitialThemeSource.php

@@ -64,13 +64,13 @@ public function __construct(
     /**
      * Retrieves configuration data array.
      * Example:
-     *  ```
+     *
+     *  ```php
      *  ['Magento/backend' =>
      *      [
      *          'parent_id' => NULL,
      *          'theme_path' => 'Magento/backend',
      *          'theme_title' => 'Magento 2 backend',
-     *          'preview_image' => NULL,
      *          'is_featured' => '0',
      *          'area' => 'adminhtml',
      *          'type' => '0',
@@ -93,7 +93,7 @@ public function get($path = '')
             $themes = [];
 
             foreach ($rawThemes as $themeRow) {
-                unset($themeRow['theme_id']);
+                unset($themeRow['theme_id'], $themeRow['preview_image']);
 
                 $themes[$themeRow['code']] = $themeRow;
 

app/code/Magento/Theme/Test/Unit/Model/Source/InitialThemeSourceTest.php

@@ -127,7 +127,6 @@ public function testGet()
                         'parent_id' => null,
                         'theme_path' => 'Magento/backend',
                         'theme_title' => 'Magento 2 backend',
-                        'preview_image' => null,
                         'is_featured' => '0',
                         'area' => 'adminhtml',
                         'type' => '0',
@@ -138,7 +137,6 @@ public function testGet()
                         'parent_id' => null,
                         'theme_path' => 'Magento/blank',
                         'theme_title' => 'Magento Blank',
-                        'preview_image' => 'preview_image_587df6c4cc9c2.jpeg',
                         'is_featured' => '0',
                         'area' => 'frontend',
                         'type' => '0',
@@ -149,7 +147,6 @@ public function testGet()
                         'parent_id' => '2',
                         'theme_path' => 'Magento/luma',
                         'theme_title' => 'Magento Luma',
-                        'preview_image' => 'preview_image_587df6c4e073d.jpeg',
                         'is_featured' => '0',
                         'area' => 'frontend',
                         'type' => '0',
@@ -165,7 +162,6 @@ public function testGet()
                         'parent_id' => null,
                         'theme_path' => 'Magento/backend',
                         'theme_title' => 'Magento 2 backend',
-                        'preview_image' => null,
                         'is_featured' => '0',
                         'area' => 'adminhtml',
                         'type' => '0',
@@ -175,7 +171,6 @@ public function testGet()
                         'parent_id' => null,
                         'theme_path' => 'Magento/blank',
                         'theme_title' => 'Magento Blank',
-                        'preview_image' => 'preview_image_587df6c4cc9c2.jpeg',
                         'is_featured' => '0',
                         'area' => 'frontend',
                         'type' => '0',
@@ -185,7 +180,6 @@ public function testGet()
                         'parent_id' => 'Magento/blank',
                         'theme_path' => 'Magento/luma',
                         'theme_title' => 'Magento Luma',
-                        'preview_image' => 'preview_image_587df6c4e073d.jpeg',
                         'is_featured' => '0',
                         'area' => 'frontend',
                         'type' => '0',

dev/tests/integration/testsuite/Magento/Deploy/Console/Command/App/ApplicationDumpCommandTest.php

@@ -101,17 +101,11 @@ private function validateSystemSection(array $config)
      */
     private function validateThemesSection(array $config)
     {
-        // Clearing the dynamic fields.
-        foreach (array_keys($config['themes']) as $themeKey) {
-            $config['themes'][$themeKey]['preview_image'] = null;
-        }
-
         $this->assertEquals(
             [
                 'parent_id' => null,
                 'theme_path' => 'Magento/backend',
                 'theme_title' => 'Magento 2 backend',
-                'preview_image' => null,
                 'is_featured' => '0',
                 'area' => 'adminhtml',
                 'type' => '0',
@@ -124,7 +118,6 @@ private function validateThemesSection(array $config)
                 'parent_id' => null,
                 'theme_path' => 'Magento/blank',
                 'theme_title' => 'Magento Blank',
-                'preview_image' => null,
                 'is_featured' => '0',
                 'area' => 'frontend',
                 'type' => '0',
@@ -137,7 +130,6 @@ private function validateThemesSection(array $config)
                 'parent_id' => 'Magento/blank',
                 'theme_path' => 'Magento/luma',
                 'theme_title' => 'Magento Luma',
-                'preview_image' => null,
                 'is_featured' => '0',
                 'area' => 'frontend',
                 'type' => '0',