DFS is working

lib/http/query.rb

@@ -2,11 +2,12 @@ module Pruning
   module HTTP
     class Query < Struct.new(:name, :indicator_ids)
       def initialize(params = {})
+        symbolised = params.map { |k, v| { k.to_sym => v } }.reduce({}, :merge)
         values = members.map do |member|
-          value = params.fetch(member, nil)
+          value = symbolised.fetch(member, nil)
           next if value.nil?
           case member
-          when :indicator_ids then value.map(&:to_i) # break on purpose if indicator_ids is not an array
+          when :indicator_ids then value.map(&->(indicator_id) { indicator_id.to_i } ) # break on purpose if indicator_ids is not an array
           when :name then value.to_s.gsub(/[^A-Za-z]/,'') 
             else value
           end