RSpec matcher for json-schema

json_schema_matcher.rb

RSpec::Matchers.define :match_schema do |schema_name|

  match do |json|
    schema = Rails.root.join("/path/to/your/schemas/#{schema_name}.json")
    @errors = JSON::Validator.fully_validate(schema, json)
    @errors.none?
  end

  failure_message_for_should do
    @errors.first
  end

end