test_timeout.rb

require 'timeout'

def test_timeout(timeout_timeout, count, &block)
  pass = timeout = error = 0
  count.times do |i|
    begin
      Timeout::timeout(timeout_timeout, &block)
      pass += 1
    rescue Timeout::Error => e
      timeout += 1
    rescue Timeout::ExitException => e
      error += 1
    end
  end
  [pass, timeout, error]
end

# With JRuby version 1.3, I started seeing odd errors from
# Timeout::timeout.  The output from this little app was
# inconsistent.  It would usually pass 90-95% of the time.
#
# I played around with setting the timeout value (0.9999
# below) to 1. After that, I could no longer get anything
# but 'pass' from this test for any value. 
#

puts "Simple quick loop test..."
pass, timeout, error = test_timeout(0.9999, 1000) { 1.times { |i| i }; true }
puts "Pass:     #{pass}"
puts "Timeout:  #{timeout}"
puts "Error:    #{error}"

puts "Simply return true test..."
pass, timeout, error = test_timeout(0.9999, 1000) { true }
puts "Pass:     #{pass}"
puts "Timeout:  #{timeout}"
puts "Error:    #{error}"