public function testBindCustomerLogout() { $observer = new \Magento\Framework\Object(); $this->visitor->setCustomerId('1'); $this->visitor->bindCustomerLogout($observer); $this->assertTrue($this->visitor->getDoCustomerLogout()); $this->visitor->unsetData(); $this->visitor->bindCustomerLogout($observer); $this->assertNull($this->visitor->getDoCustomerLogout()); }