Append shipment comment to shipment if appendComment is true

Author: Jeroen van Leusden

app/code/Magento/Sales/Model/Order/ShipmentDocumentFactory.php

@@ -101,6 +101,11 @@ public function create(
                 $appendComment,
                 $comment->getIsVisibleOnFront()
             );
+
+            if ($appendComment) {
+                $shipment->setCustomerNote($comment->getComment());
+                $shipment->setCustomerNoteNotify($appendComment);
+            }
         }
 
         return $shipment;

app/code/Magento/Sales/Test/Unit/Model/Order/ShipmentDocumentFactoryTest.php

@@ -92,7 +92,7 @@ protected function setUp()
 
         $this->shipmentMock = $this->getMockBuilder(ShipmentInterface::class)
             ->disableOriginalConstructor()
-            ->setMethods(['addComment', 'addTrack'])
+            ->setMethods(['addComment', 'addTrack', 'setCustomerNote', 'setCustomerNoteNotify'])
             ->getMockForAbstractClass();
 
         $this->hydratorPoolMock = $this->getMockBuilder(HydratorPool::class)
@@ -160,7 +160,7 @@ public function testCreate()
         if ($appendComment) {
             $comment = "New comment!";
             $visibleOnFront = true;
-            $this->commentMock->expects($this->once())
+            $this->commentMock->expects($this->exactly(2))
                 ->method('getComment')
                 ->willReturn($comment);
 
@@ -172,6 +172,10 @@ public function testCreate()
                 ->method('addComment')
                 ->with($comment, $appendComment, $visibleOnFront)
                 ->willReturnSelf();
+
+            $this->shipmentMock->expects($this->once())
+                ->method('setCustomerNoteNotify')
+                ->with(true);
         }
 
         $this->assertEquals(