JSON::Fuzz::Generator

Fuzzing Parameter Generator from JSON Schema

Installation

Add this line to your application's Gemfile:

gem 'json-fuzz-generator'

And then execute:

$ bundle

Or install it yourself as:

$ gem install json-fuzz-generator

Usage

input JSON Schema

{
  "title": "Basic Schema",
  "type": "object",
  "properties": {
    "id" : {
      "type": "integer",
      "minimum": 0
    },
    "name": {
      "type": "string"
    },
    "birthday": {
      "type": "string",
      "format": "date"
    }
  }
}

generate valid param

require "json-fuzz-generator"
 
JSON::Fuzz::Generator.default_param(schema_file)
# => {"id"=>0, "name"=>"hoge", "birthday"=>"1992-06-27"}

generate invalid params

require "json-fuzz-generator"
 
JSON::Fuzz::Generator.generate(schema_file)
# => 
#[
#  ["sample", "array"],
#  true,
#  73,
#  nil,
#  0.34259093948835795,
#  "hoge",
#  {"id"=>"a", "name"=>"hoge", "birthday"=>"1992-06-27"},
#  {"id"=>"1", "name"=>"hoge", "birthday"=>"1992-06-27"},
#  {"id"=>0.1, "name"=>"hoge", "birthday"=>"1992-06-27"},
#  {"id"=>["sample", "array"], "name"=>"hoge", "birthday"=>"1992-06-27"},
#  {"id"=>false, "name"=>"hoge", "birthday"=>"1992-06-27"},
#  {"id"=>nil, "name"=>"hoge", "birthday"=>"1992-06-27"},
#  {"id"=>0.0, "name"=>"hoge", "birthday"=>"1992-06-27"},
#  {"id"=>{}, "name"=>"hoge", "birthday"=>"1992-06-27"},
#  {"id"=>"hoge", "name"=>"hoge", "birthday"=>"1992-06-27"},
#  {"id"=>-1, "name"=>"hoge", "birthday"=>"1992-06-27"},
#  {"id"=>0, "name"=>["sample", "array"], "birthday"=>"1992-06-27"},
#  {"id"=>0, "name"=>true, "birthday"=>"1992-06-27"},
#  {"id"=>0, "name"=>97, "birthday"=>"1992-06-27"},
#  {"id"=>0, "name"=>nil, "birthday"=>"1992-06-27"},
#  {"id"=>0, "name"=>0.7547537108664406, "birthday"=>"1992-06-27"},
#  {"id"=>0, "name"=>{}, "birthday"=>"1992-06-27"},
#  {"id"=>0, "name"=>"hoge", "birthday"=>["sample", "array"]},
#  {"id"=>0, "name"=>"hoge", "birthday"=>false},
#  {"id"=>0, "name"=>"hoge", "birthday"=>11},
#  {"id"=>0, "name"=>"hoge", "birthday"=>nil},
#  {"id"=>0, "name"=>"hoge", "birthday"=>0.5380909041403419},
#  {"id"=>0, "name"=>"hoge", "birthday"=>{}},
#  {"id"=>0, "name"=>"hoge", "birthday"=>"2010-01-32"},
#  {"id"=>0, "name"=>"hoge", "birthday"=>"n2010-01-01"},
#  {"id"=>0, "name"=>"hoge", "birthday"=>"2010-1-01"},
#  {"id"=>0, "name"=>"hoge", "birthday"=>"2010-01-1"},
#  {"id"=>0, "name"=>"hoge", "birthday"=>"2010-01-01n"},
#]

Contributing

1. Fork it ( https://github.com/deme0607/json-fuzz-generator/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request