[
   {
      filename => 'testfile.start',
      offset   => 0,
      length   => 36,
      contents => 'This is the START   that is allowed!'
   },
   {
      filename => 'testfile.middle',
      offset   => 7,
      length   => 36,
      contents => 'This is the MIDDLE  that is allowed!'
   },
   {
      filename => 'testfile.end',
      offset   => 7,
      length   => 36,
      contents => "This is the END     that is allowed\n"
   },
   {
      filename => 'testfile.full',
      offset   => 0,
      length   => 36,
      contents => "This is the FULL    that is allowed\n"
   },
]