WC_Order::get_customer_ip_address PHP Method

    public function get_customer_ip_address($context = 'view')
    {
        return $this->get_prop('customer_ip_address', $context);
    }

 /**
  * Test: get_customer_ip_address
  */
 function test_get_customer_ip_address()
 {
     $object = new WC_Order();
     $set_to = '192.168.1.1';
     $object->set_customer_ip_address($set_to);
     $this->assertEquals($set_to, $object->get_customer_ip_address());
 }