Enable numeric string key parsing in a path

Author: laserlemon

lib/json_spec/helpers.rb

@@ -34,18 +34,19 @@ def load_json(relative_path)
       def value_at_json_path(ruby, path)
         return ruby unless path
 
-        json_path_to_keys(path).inject(ruby) do |value, key|
+        path.split("/").inject(ruby) do |value, key|
           case value
-          when Hash, Array then value.fetch(key){ missing_json_path!(path) }
-          else missing_json_path!(path)
+          when Hash
+            value.fetch(key){ missing_json_path!(path) }
+          when Array
+            missing_json_path!(path) unless key =~ /^\d+$/
+            value.fetch(key.to_i){ missing_json_path!(path) }
+          else
+            missing_json_path!(path)
           end
         end
       end
 
-      def json_path_to_keys(path)
-        path.split("/").map{|k| k =~ /^\d+$/ ? k.to_i : k }
-      end
-
       def missing_json_path!(path)
         raise JsonSpec::MissingPath.new(path)
       end

spec/json_spec/helpers_spec.rb

@@ -28,6 +28,11 @@
         expect{ parse_json(json, path) }.to raise_error(JsonSpec::MissingPath)
       end
     end
+
+    it "parses at a numeric string path" do
+      json = %({"1":"two"})
+      parse_json(%({"1":"two"}), "1").should == "two"
+    end
   end
 
   context "normalize_json" do