Module: Bparity::Recording::Determinism

Defined in:
lib/bparity/recording.rb

Constant Summary collapse

TIME_KEY = 
:bparity_frozen_time
RANDOM_KEY = 
:bparity_previous_random_seed

Class Method Summary collapse

Class Method Details

.apply(config) ⇒ Object 



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# File 'lib/bparity/recording.rb', line 179

def apply(config)
  Thread.current[RANDOM_KEY] = srand(config[:random_seed]) if config[:random_seed]
  return unless config[:freeze_time]

  install_time_hook
  install_date_hook
  Thread.current[TIME_KEY] = Time.parse(config[:freeze_time].to_s)
rescue ArgumentError
  raise ConfigurationError, "Frozen time is invalid. Use an ISO 8601 value in the boundary configuration."
end

.clear ⇒ Object 



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# File 'lib/bparity/recording.rb', line 190

def clear
  Thread.current[TIME_KEY] = nil
  previous_seed = Thread.current[RANDOM_KEY]
  srand(previous_seed) if previous_seed
  Thread.current[RANDOM_KEY] = nil
end