zpool.rb in nagios-zfs-0.1.0

- old
+ new

@@ -1,8 +1,11 @@
 module Nagios
   module ZFS
     class Zpool
+      attr_reader :name
+
       def initialize(name)
+        raise 'missing pool name' if [nil, ''].include?(name)
         @name = name
       end
 
       def capacity
         query.split("\t").last[/^(\d+)/,1].to_i