test_mmap
  Position of foo: 1.0 pages
  Length of file: 2.0 pages
  Contents of byte 0: '\000'
  Contents of first 3 bytes: '\000\000\000'

  Modifying file's content...
  Contents of byte 0: '3'
  Contents of first 3 bytes: '3\000\000'
  Contents of second page: '\000foobar\000'
  Regex match on mmap (page start, length of match): 1.0 6
  Seek to zeroth byte
  Seek to 42nd byte
  Seek to last byte
  Try to seek to negative position...
  Try to seek beyond end of mmap...
  Try to seek to negative position...
  Attempting resize()
 Test passed