source: code/test_fastsimplexordatastore.py @ 23

# this is a bunch of macro tests.   If everything passes, there is no output.

import fastsimplexordatastore

size = 64
letterxordatastore = fastsimplexordatastore.XORDatastore(size, 16)

startpos = 0
for char in range(ord("A"), ord("Q")):
  # put 1K of those chars in...
  letterxordatastore.set_data(startpos, chr(char) * size) 
  startpos = startpos + size

# can read data out...
assert(letterxordatastore.get_data(size, 1) == 'B')

# let's create a bitstring that uses A, C, and P.   
bitstring = chr(int('10100000', 2)) + chr(int('00000001',2))
xorresult = letterxordatastore.produce_xor_from_bitstring(bitstring)

assert(xorresult[0] == 'R')

letterxordatastore.set_data(10,"Hello there")

mystring = letterxordatastore.get_data(9,13)

assert(mystring == 'AHello thereA')


letterxordatastore.set_data(1,"Hello there"*size)

mystring = letterxordatastore.get_data(size*2 - (size*2 %11) + 1,11)

assert(mystring == "Hello there")

# let's try to read the last bytes of data
mystring = letterxordatastore.get_data(size*15,size)



try:
  letterxordatastore = fastsimplexordatastore.XORDatastore(127, 16)
except TypeError:
  pass
else:
  print "Was allowed to use a block size that isn't a multiple of 64"

try:
  letterxordatastore.set_data(size*16, "hi")
except TypeError:
  pass
else:
  print "Was allowed to write past the end of the datastore"


try:
  letterxordatastore.set_data(size*16, 1)
except TypeError:
  pass
else:
  print "Was allowed to read past the end of the datastore"


for blockcount in [9,15,16]:
  letterxordatastore = fastsimplexordatastore.XORDatastore(size, blockcount)

  # is a 0 block the right size?
  assert( len(letterxordatastore.produce_xor_from_bitstring(chr(0)*2)) == size )



  try:
    letterxordatastore.produce_xor_from_bitstring(chr(0)*1)
  except TypeError:
    pass
  else:
    print "didn't detect incorrect (short) bitstring length"


  try:
    letterxordatastore.produce_xor_from_bitstring(chr(0)*3)
  except TypeError:
    pass
  else:
    print "didn't detect incorrect (long) bitstring length"