public function testAddWebsiteFilter()
 {
     $this->_prepareAddFilterStubs();
     $website = $this->getMock('\\Magento\\Store\\Model\\Website', ['getId', '__sleep', '__wakeup'], [], '', false);
     $website->expects($this->any())->method('getId')->will($this->returnValue(1));
     $this->assertInstanceOf('\\Magento\\Rule\\Model\\Resource\\Rule\\Collection\\AbstractCollection', $this->abstractCollection->addWebsiteFilter($website));
 }