MAGETWO-44267: [Product Video] Positions of product videos per storeview does no work

- test fix

Author: Yurii Hryhoriev

app/code/Magento/Catalog/Test/Unit/Block/Adminhtml/Product/Helper/Form/Gallery/ContentTest.php

@@ -82,37 +82,59 @@ public function testGetImagesJson()
             ['file_1.jpg', 'catalog/product/image_1.jpg'],
             ['file_2.jpg', 'catalog/product/image_2.jpg']
         ];
-        // @codingStandardsIgnoreStart
-        $encodedString = '[{"value_id":"1","file":"image_1.jpg","media_type":"image","url":"http:\/\/magento2.dev\/pub\/media\/catalog\/product\/image_1.jpg","size":879394},{"value_id":"2","file":"image_2.jpg","media_type":"image","url":"http:\/\/magento2.dev\/pub\/media\/catalog\/product\/image`_2.jpg","size":399659}]';
-        // @codingStandardsIgnoreEnd
+
+        $sizeMap = [
+            ['catalog/product/image_1.jpg', ['size' => 399659]],
+            ['catalog/product/image_2.jpg', ['size' => 879394]]
+        ];
+
+        $imagesResult = [
+            [
+                'value_id' => '2',
+                'file' => 'file_2.jpg',
+                'media_type' => 'image',
+                'position' => '0',
+                'url' => 'url_to_the_image/image_2.jpg',
+                'size' => 879394
+            ],
+            [
+                'value_id' => '1',
+                'file' => 'file_1.jpg',
+                'media_type' => 'image',
+                'position' => '1',
+                'url' => 'url_to_the_image/image_1.jpg',
+                'size' => 399659
+            ]
+        ];
+
         $images = [
             'images' => [
                 [
                     'value_id' => '1',
                     'file' => 'file_1.jpg',
                     'media_type' => 'image',
+                    'position' => '1'
                 ] ,
                 [
                     'value_id' => '2',
                     'file' => 'file_2.jpg',
                     'media_type' => 'image',
+                    'position' => '0'
                 ]
             ]
         ];
-        $firstStat = ['size' => 879394];
-        $secondStat = ['size' => 399659];
+
         $this->content->setElement($this->galleryMock);
         $this->galleryMock->expects($this->once())->method('getImages')->willReturn($images);
         $this->fileSystemMock->expects($this->once())->method('getDirectoryRead')->willReturn($this->readMock);
 
         $this->mediaConfigMock->expects($this->any())->method('getMediaUrl')->willReturnMap($url);
-        $this->mediaConfigMock->expects($this->any())->method('getMediaPath')->willReturn($mediaPath);
+        $this->mediaConfigMock->expects($this->any())->method('getMediaPath')->willReturnMap($mediaPath);
 
-        $this->readMock->expects($this->at(0))->method('stat')->willReturn($firstStat);
-        $this->readMock->expects($this->at(1))->method('stat')->willReturn($secondStat);
-        $this->jsonEncoderMock->expects($this->once())->method('encode')->willReturn($encodedString);
+        $this->readMock->expects($this->any())->method('stat')->willReturnMap($sizeMap);
+        $this->jsonEncoderMock->expects($this->once())->method('encode')->willReturnCallback('json_encode');
 
-        $this->assertSame($encodedString, $this->content->getImagesJson());
+        $this->assertSame(json_encode($imagesResult), $this->content->getImagesJson());
     }
 
     public function testGetImagesJsonWithoutImages()