Add options for listing hosts

Options include
- Per_page
- Page
- FQDN

Added test

lib/fog/zerigo/requests/dns/list_hosts.rb

@@ -40,16 +40,27 @@ module Fog
       end
 
       class Mock # :nodoc:all
-        def list_hosts(zone_id)
+        def list_hosts(zone_id, options={})
           zone = find_by_zone_id(zone_id)
 
           response = Excon::Response.new
 
           if zone
-            response.status = 200
-            response.body = {
-              'hosts' => zone['hosts']
-            }
+            if options.empty?
+              response.status = 200
+              response.body = {
+                'hosts' => zone['hosts']
+              }
+            else
+                hosts = zone['hosts']
+                hosts.select! {|h| h['fqdn'] == options['fqdn']} if options['fqdn']
+                hosts = options['per_page'] ? hosts.each_slice(options['per_page'] - 1).to_a : hosts.each_slice(100).to_a
+                hosts = options['page'] ? hosts[options['page']] : hosts[0]
+                response.status = 200
+                response.body = {
+                  'hosts' => hosts
+                }
+            end
           else
             response.status = 404
           end

tests/zerigo/requests/dns/dns_tests.rb

@@ -348,6 +348,27 @@ Shindo.tests('Fog::DNS[:zerigo] | DNS requests', ['zerigo', 'dns']) do
       result
     end
 
+    test('list host records with options') do
+      pending if Fog.mocking?
+
+      result = false
+
+      response = Fog::DNS[:zerigo].list_hosts(@zone_id, {:per_page=>2, :page=>1})
+      if response.status == 200
+        hosts = response.body['hosts']
+        if (hosts.count == 2)
+          hosts.each { |host|
+            if (host['id'] > 0) and (host['fqdn'].length > 0) and (host['host-type'].length > 0) and
+               (host['created-at'].length > 0) and (host['updated-at'].length > 0)
+              result = true
+            end
+          }
+        end
+      end
+
+      result
+    end
+
     test("find host: mail.#{@domain}") do
       pending if Fog.mocking?