random.seed(open(TARGET, 'rb').read(1024))
set_min_block_size(1024)
set_max_block_size(2048)
set_average_block_size(1024)
r = Rabin()
before = get_file_fingerprints(TARGET)
f = open(TARGET, 'rb+')
data = f.read(int(filesizeM / 2 * Mb))
r.update(data)
r.update(b'x')
data = f.read()
r.update(data)
after = r.fingerprints()
assert len(before) <= len(after)
diffcount = 0
for i in range(len(before)):
try:
bs, bl, bp = before[i]
As, al, ap = after[i]
# assert bs == As
assert bl == al
assert bp == ap
except:
print('before', before[i])
print('after', after[i])
diffcount += 1
random.seed(open(TARGET, 'r').read(1024))
set_min_block_size(1024)
set_max_block_size(2048)
set_average_block_size(1024)
r = Rabin()
before = get_file_fingerprints(TARGET)
f = open(TARGET, 'r+')
data = f.read(filesizeM/2 * Mb)
r.update(data)
r.update('x')
data = f.read()
r.update(data)
after = r.fingerprints()
assert len(before) <= len(after)
diffcount = 0
for i in range(len(before)):
try:
bs,bl,bp = before[i]
As,al,ap = after[i]
# assert bs == As
assert bl == al
assert bp == ap
except:
print 'before', before[i]
print 'after', after[i]
diffcount += 1
def block_reached(start, length, fingerprint):
# print('(%s, %s, %s)' % (start, length, fingerprint))
reached.append((start, length, fingerprint))
r = Rabin()
r.register(block_reached)
with open(TARGET, 'rb') as f:
while True:
size = random.randint(1,os.path.getsize(TARGET))
data = f.read(size)
if len(data) == 0:
break
r.update(data)
partial = r.fingerprints()
gold = get_file_fingerprints(TARGET)
assert len(gold) == len(partial) == len(reached)
for i in range(len(gold)):
try:
gs,gl,gp = gold[i]
ps,pl,pp = partial[i]
rs,rl,rp = reached[i]
assert gs == ps == rs
assert gl == pl == rl
assert gp == pp == rp
except:
print('gold ', gold[i])
print('partial', partial[i])
# print('(%s, %s, %s)' % (start, length, fingerprint))
reached.append((start, length, fingerprint))
r = Rabin()
r.register(block_reached)
with open(TARGET, 'rb') as f:
while True:
size = random.randint(1, os.path.getsize(TARGET))
data = f.read(size)
if len(data) == 0:
break
r.update(data)
partial = r.fingerprints()
gold = get_file_fingerprints(TARGET)
assert len(gold) == len(partial) == len(reached)
for i in range(len(gold)):
try:
gs, gl, gp = gold[i]
ps, pl, pp = partial[i]
rs, rl, rp = reached[i]
assert gs == ps == rs
assert gl == pl == rl
assert gp == pp == rp
except:
print('gold ', gold[i])
print('partial', partial[i])