Convert bits to and from pits and lands

[saxbophone]

Feature: Convert bits to and from pits and lands
  In order to produce distinct visible shades on the CD program area
  the Program that produces disc images should be able to
  convert between patterns of pits and lands and patterns of bits

  Scenario: Convert bits to pits/lands
    Given a sequence of bits
    When the bits are passed into the pit/land encoder
    Then the encoder should return a corresponding sequence of pits and lands

  Scenario: Convert pits/lands to bits
    Given a sequence of pits and lands
    When the pits/lands are passed into the pit/land decoder
    Then the decoder should return a corresponding sequence of bits

[saxbophone]

Note: previously-seen combinations of pits and lands affect the next combination, because bits encode into pits/lands using Non-Return-to-Zero-Inverted (NRZI) encoding, which means that 1 bits trigger the transition from pit/land to land/pit and 0 bits keep the current state.

[saxbophone]

Too tempting to use templates for this, to not use templates for this.