MAGETWO-36840: low_stock_date shows only year when requesting stockItems information of product through API service

 - fixed

Author: Mike Weis

app/code/Magento/CatalogInventory/Model/Stock/Item.php

@@ -239,11 +239,11 @@ public function getIsDecimalDivided()
     }
 
     /**
-     * @return int Timestamp
+     * @return string Timestamp
      */
     public function getLowStockDate()
     {
-        return (int) $this->_getData(static::LOW_STOCK_DATE);
+        return $this->_getData(static::LOW_STOCK_DATE);
     }
 
     /**

app/code/Magento/CatalogInventory/Test/Unit/Model/Stock/ItemTest.php

@@ -395,4 +395,12 @@ public function getStoreIdDataProvider()
             [0, $this->storeId],
         ];
     }
+
+    public function testGetLowStockDate()
+    {
+        // ensure we do *not* return '2015' due to casting to an int
+        $date = '2015-4-17';
+        $this->item->setLowStockDate($date);
+        $this->assertEquals($date, $this->item->getLowStockDate());
+    }
 }