Aggregate minitest failures in S3

aggregate.rb

module Minitest
  def self.plugin_aggregate_init
    reporter << Aggregate.new
  end

  class Aggregate
    attr_accessor :branch
    attr_accessor :build
    attr_accessor :failed_tests
    attr_accessor :timestamp

    def initialize
      self.branch = ENV['CIRCLE_BRANCH']
      self.build = ENV['CIRCLE_BUILD_NUM']
      self.failed_tests = []
      self.timestamp = DateTime.current.strftime('%Y-%m-%d %H:%M:%S')
    end

    def passed?
      true
    end

    def start; end

    def record(result)
      if result.failure.present? && !result.failure.is_a?(Minitest::Skip)
        failed_tests << {
          created_at: timestamp,
          build: build,
          test_class: CGI.escapeHTML(result.class.to_s),
          test_name: CGI.escapeHTML(result.name),
        }.to_json
      end
    end

    def report
      return if failed_tests.empty?

      connection = Fog::Storage.new(AMAZON)
      directory = connection.directories.new(key: 'BUCKETNAME')
      directory.files.create(key: "#{build}.json", body: failed_tests.join("\r\n"))
    end
  end
end