Class: Time

Inherits:
Object show all
Defined in:
lib/propr/random/time.rb,
lib/propr/shrink/time.rb

Constant Summary collapse

MIN =

MIN = Time.at(0) # 1969-12-31 00:00:00 UTC

Time.at(-30610224000)
MAX =

9999-12-31 23:59:59 UTC

Time.at(253402300799)

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.random(options = {}, m = Propr::Random) ⇒ Object 



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# File 'lib/propr/random/time.rb', line 6

def random(options = {}, m = Propr::Random)
  min = (options[:min] || MIN).to_f
  max = (options[:max] || MAX).to_f

  m.bind(Float.random(options.merge(min: min, max: max))) do |ms|
    m.unit(at(ms))
  end
end

Instance Method Details

#shrink ⇒ Object 



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# File 'lib/propr/shrink/time.rb', line 2

def shrink
  Array.unfold(to_f) do |seed|
    zero  = 0 # 1969-12-31 00:00:00 UTC
    seed_ = zero + (seed - zero) / 2
    ((seed - seed_).abs > 1e-2).maybe([self + zero - seed, seed_])
  end
end