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test_mmap

  Position of foo: 1.0 pages
  Length of file: 2.0 pages
  Contents of byte 0: '\x00'
  Contents of first 3 bytes: '\x00\x00\x00'

  Modifying file's content...
  Contents of byte 0: '3'
  Contents of first 3 bytes: '3\x00\x00'
  Contents of second page: '\x00foobar\x00'
  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()
  Creating 10 byte test data file.
  Opening mmap with access=ACCESS_READ
  Ensuring that readonly mmap can't be slice assigned.
  Ensuring that readonly mmap can't be item assigned.
  Ensuring that readonly mmap can't be write() to.
  Ensuring that readonly mmap can't be write_byte() to.
  Ensuring that readonly mmap can't be resized.
  Opening mmap with size too big
  Opening mmap with access=ACCESS_WRITE
  Modifying write-through memory map.
  Opening mmap with access=ACCESS_COPY
  Modifying copy-on-write memory map.
  Ensuring copy-on-write maps cannot be resized.
  Ensuring invalid access parameter raises exception.
  Try opening a bad file descriptor...
  Ensuring that passing 0 as map length sets map size to current file size.
  Ensuring that passing 0 as map length sets map size to current file size.
  anonymous mmap.mmap(-1, PAGESIZE)...
 Test passed