Fix symbolize_keys function

lib/multi_xml.rb

@@ -180,21 +180,16 @@ def parse_file(file, entity)
       f
     end
 
-    def symbolize_keys(hash)
-      hash.each_with_object({}) do |(key, value), result|
-        new_key = case key
-        when String
-          key.to_sym
-        else
-          key
-        end
-        new_value = case value
-        when Hash
-          symbolize_keys(value)
-        else
-          value
+    def symbolize_keys(params)
+      case params
+      when Hash
+        params.inject({}) do |result, (key, value)|
+          result.merge(key.to_sym => symbolize_keys(value))
         end
-        result[new_key] = new_value
+      when Array
+        params.map{|value| symbolize_keys(value)}
+      else
+        params
       end
     end
 

spec/parser_shared_example.rb

@@ -122,11 +122,11 @@
 
       context "with :symbolize_keys => true" do
         before do
-          @xml = '<user><name>Erik Michaels-Ober</name></user>'
+          @xml = '<users><user name="Erik Michaels-Ober"/><user><name>Wynn Netherland</name></user></users>'
         end
 
         it "symbolizes keys" do
-          expect(MultiXml.parse(@xml, :symbolize_keys => true)).to eq({:user => {:name => "Erik Michaels-Ober"}})
+          expect(MultiXml.parse(@xml, :symbolize_keys => true)).to eq({:users => {:user => [{:name => "Erik Michaels-Ober"}, {:name => "Wynn Netherland"}]}})
         end
       end