Add validate benchmark

Author: jhawthorn

benchmark/validate.rb

@@ -0,0 +1,37 @@
+require "benchmark/ips"
+require "json"
+require "oj"
+require "yajl"
+require "fast_jsonparser"
+require "rapidjson"
+
+if ENV["ONLY"]
+  RUN = ENV["ONLY"].split(/[,: ]/).map{|x| [x.to_sym, true] }.to_h
+  RUN.default = false
+elsif ENV["EXCEPT"]
+  RUN = ENV["only"].split(/[,: ]/).map{|x| [x.to_sym, false] }.to_h
+  RUN.default = true
+else
+  RUN = Hash.new(true)
+end
+
+def benchmark_parsing(name, json_output)
+  puts "== Validating #{name} (#{json_output.size} bytes)"
+
+  Benchmark.ips do |x|
+    x.report("parse") { RapidJSON.parse(json_output) } if RUN[:parse]
+    x.report("validate") { RapidJSON.valid_json?(json_output) } if RUN[:validate]
+  end
+  puts
+end
+
+benchmark_parsing "small nested array", JSON.dump([[1,2,3,4,5]]*10)
+benchmark_parsing "small hash", JSON.dump({ "username" => "jhawthorn", "id" => 123, "event" => "wrote json serializer" })
+
+benchmark_parsing "test from oj", <<JSON
+{"a":"Alpha","b":true,"c":12345,"d":[true,[false,[-123456789,null],3.9676,["Something else.",false],null]],"e":{"zero":null,"one":1,"two":2,"three":[3],"four":[0,1,2,3,4]},"f":null,"h":{"a":{"b":{"c":{"d":{"e":{"f":{"g":null}}}}}}},"i":[[[[[[[null]]]]]]]}
+JSON
+
+benchmark_parsing "twitter.json", File.read("#{__dir__}/../test/data/twitter.json")
+benchmark_parsing "citm_catalog.json", File.read("#{__dir__}/../test/data/citm_catalog.json")
+benchmark_parsing "canada.json", File.read("#{__dir__}/../test/data/canada.json")