Fixed unit and static tests

Author: sivaschenko

app/code/Magento/Catalog/Test/Unit/Model/ResourceModel/Product/CollectionTest.php

@@ -323,7 +323,7 @@ public function testAddTierPriceDataByGroupId()
                 [ '(customer_group_id=? AND all_groups=0) OR all_groups=1', $customerGroupId]
             )
             ->willReturnSelf();
-        $select->expects($this->once())->method('order')->with('entity_id')->willReturnSelf();
+        $select->expects($this->once())->method('order')->with('qty')->willReturnSelf();
         $this->connectionMock->expects($this->once())
             ->method('fetchAll')
             ->with($select)
@@ -375,7 +375,7 @@ public function testAddTierPriceData()
         $select->expects($this->exactly(1))->method('where')
             ->with('entity_id IN(?)', [1])
             ->willReturnSelf();
-        $select->expects($this->once())->method('order')->with('entity_id')->willReturnSelf();
+        $select->expects($this->once())->method('order')->with('qty')->willReturnSelf();
         $this->connectionMock->expects($this->once())
             ->method('fetchAll')
             ->with($select)

app/code/Magento/Downloadable/Block/Adminhtml/Catalog/Product/Composite/Fieldset/Downloadable.php

@@ -4,14 +4,11 @@
  * See COPYING.txt for license details.
  */
 
-/**
- * Adminhtml block for fieldset of downloadable product
- *
- * @author     Magento Core Team <core@magentocommerce.com>
- */
 namespace Magento\Downloadable\Block\Adminhtml\Catalog\Product\Composite\Fieldset;
 
 /**
+ * Adminhtml block for fieldset of downloadable product
+ *
  * @api
  * @since 100.0.2
  * @deprecated

app/code/Magento/Downloadable/Block/Adminhtml/Catalog/Product/Edit/Tab/Downloadable.php

@@ -136,6 +136,8 @@ public function isHidden()
     }
 
     /**
+     * Get group code
+     *
      * @return string
      */
     public function getGroupCode()
@@ -154,6 +156,8 @@ public function getContentTabId()
     }
 
     /**
+     * Is downloadable
+     *
      * @return bool
      */
     public function isDownloadable()
@@ -162,7 +166,7 @@ public function isDownloadable()
     }
 
     /**
-     * @return $this
+     * @inheritdoc
      */
     protected function _prepareLayout()
     {

app/code/Magento/Downloadable/Block/Adminhtml/Catalog/Product/Edit/Tab/Downloadable/Links.php

@@ -437,6 +437,8 @@ public function getConfig()
     }
 
     /**
+     * Is single store mode
+     *
      * @return bool
      */
     public function isSingleStoreMode()
@@ -445,17 +447,23 @@ public function isSingleStoreMode()
     }
 
     /**
+     * Get base currency code
+     *
      * @param null|string|bool|int|\Magento\Store\Model\Store $storeId $storeId
      * @return string
+     * @throws \Magento\Framework\Exception\NoSuchEntityException
      */
     public function getBaseCurrencyCode($storeId)
     {
         return $this->_storeManager->getStore($storeId)->getBaseCurrencyCode();
     }
 
     /**
+     * Get base currency symbol
+     *
      * @param null|string|bool|int|\Magento\Store\Model\Store $storeId $storeId
      * @return string
+     * @throws \Magento\Framework\Exception\NoSuchEntityException
      */
     public function getBaseCurrencySymbol($storeId)
     {