Manager
-------

-- Manager
-- Manager.reload
  -- .process_files
    -- create "cases"

-- Manager.run
  -- RunnerClass
  -- RunnerClass.run
    -- run "cases"

-- Manager.summary
  -- run "reporters"

Case creation
-------------

-- TastCase
  -- TaskCase.process_file
    -- Task
    -- Task.enable_outs
       + task.post <- FileExists for stdout y stderr
       + task.gen <- stdout y stderr

-- TaskCase.run
  -- run_task
  -- task.do_pre_run
     + before para task.pre y task.post
       + FileContains y FileEquals pueden crear FileExists incluso para stdout y stderr

     + task.pre <- Not(FileExists) para task.gen
     + task.post <- FileExists para task.gen





-- Manager
  -- reload

-- Manager.start
  -- RunnerClass
  -- RunnerClass.run
    -- run "cases"
    -- run reporter
