class TestRackApp
  attr_reader :request_body

  def initialize
    @request_headers = {}
  end

  def call(env)
    @env = env
    @request_body = env['rack.input'].read
    [ 200, { 'Content-Type' => 'text/plain' }, [ 'Hello Rack' ] ]
  end

  def [](key)
    @env[key]
  end
end