fix dmail tests

app/logical/current_user.rb

@@ -1,5 +1,5 @@
 class CurrentUser
-  def self.scoped(user, ip_addr)
+  def self.scoped(user, ip_addr = "127.0.0.1")
     old_user = self.user
     old_ip_addr = self.ip_addr
 

app/models/post.rb

@@ -1282,14 +1282,18 @@ class Post < ActiveRecord::Base
     end
 
     def update_iqdb_async
-      Danbooru.config.all_server_hosts.each do |host|
-        delay(:queue => host).update_iqdb
+      if Danbooru.config.iqdb_hostname_and_port
+        Danbooru.config.all_server_hosts.each do |host|
+          delay(:queue => host).update_iqdb
+        end
       end
     end
 
     def remove_iqdb_async
-      Danbooru.config.all_server_hosts.each do |host|
-        Post.delay(:queue => host).remove_iqdb(id)
+      if Danbooru.config.iqdb_hostname_and_port
+        Danbooru.config.all_server_hosts.each do |host|
+          Post.delay(:queue => host).remove_iqdb(id)
+        end
       end
     end