You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: time_helper_test.rb
    path of file: ./repos/semian/test
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

require "test_helper"

class TestTimeHelper < Minitest::Test
  def test_time_monotonic_travel_past
    now = Pr
    
  def test_time_monotonic_travel_future
    now = Process.clock_gettime(Process::CLOCK_MONOTONIC)
    current = now - 1
    time_travel(6) do
      current = Process.clock_gettime(Process::CLOCK_MONOTONIC)
    end

    assert(now + 5 < current, "now #{now} should be less than current #{current} at least by 5 secs")
  end