public function testGetResourceStorageModel() { $dbModelMock = $this->getMockBuilder('Magento\\Core\\Model\\File\\Storage\\Database')->disableOriginalConstructor()->getMock(); $this->dbStorageFactoryMock->expects($this->once())->method('create')->will($this->returnValue($dbModelMock)); $resourceModelMock = $this->getMockBuilder('Magento\\Framework\\Model\\Resource\\Db\\AbstractDb')->disableOriginalConstructor()->setMethods(['__wakeup'])->getMockForAbstractClass(); $dbModelMock->expects($this->once())->method('getResource')->will($this->returnValue($resourceModelMock)); $this->assertSame($resourceModelMock, $this->helper->getResourceStorageModel()); $this->assertSame($resourceModelMock, $this->helper->getResourceStorageModel()); }