MAGETWO-35462: Refactor \Magento\Framework\Model\Resource\Db\AbstractDb only update changed fields

- Failed unit test fix

Author: Maksym Savich

lib/internal/Magento/Framework/Model/Test/Unit/Resource/Db/AbstractDbTest.php

@@ -278,15 +278,20 @@ public function testLoad()
     {
         $contextMock = $this->getMock('\Magento\Framework\Model\Context', [], [], '', false);
         $registryMock = $this->getMock('\Magento\Framework\Registry', [], [], '', false);
+        $resourceMock = $this->getMock('Magento\Framework\Model\Resource\Db\AbstractDb', ['_construct'], [], '', false);
         $abstractModelMock = $this->getMockForAbstractClass(
             '\Magento\Framework\Model\AbstractModel',
-            [$contextMock, $registryMock],
+            [$contextMock, $registryMock, $resourceMock],
             '',
             false,
             true,
             true,
-            ['__wakeup']
+            ['__wakeup', 'getResource', '_afterLoad']
         );
+        $abstractModelMock->expects($this->any())
+                    ->method('getResource')
+                    ->will($this->returnValue($resourceMock));
+        $abstractModelMock->expects($this->once())->method('_afterLoad');
 
         $value = 'some_value';
         $idFieldName = new \ReflectionProperty('Magento\Framework\Model\Resource\Db\AbstractDb', '_idFieldName');
@@ -447,10 +452,7 @@ public function testPrepareDataForUpdate()
                 '_getReadAdapter',
                 '_getWriteAdapter',
                 '__wakeup',
-                'commit',
-                'delete',
-                'getIdFieldName',
-                'rollBack'
+                'getIdFieldName'
             ],
             [],
             '',