How to use VCR even if your tests depend on Date.today/Time.now, +/- 100 days/seconds.

gistfile1.txt

VCR.configure do |config|
  config.cassette_library_dir = "spec/cassettes"
  config.hook_into :faraday

  # If a test uses a value that depends on the current time, then the recording
  # become stale as time marches on.
  # This setting will replace specific "absolute time" values with time-relative
  # keywords when the recording is first made.
  # On subsequent replayes, the time-relative keywords are substituted with
  # the appropriate value, so the value is relative tot he current time.
  (-100..100).each do |offset|
    date = Date.today + offset
    time = Time.now + offset

    config.define_cassette_placeholder("<YYYYMMDD+#{offset}>") { date.to_s }
    config.define_cassette_placeholder("<HTTPDATE+#{offset}>") { time.httpdate }
  end
end