def make_partion(self):
'''make the p2p network partion into 2 seperate ones.'''
# record current block height
ec, message = mvs_rpc.get_info()
self.assertEqual(ec, 0, message)
self.partion_height = message[0]
ec, peers = mvs_rpc.getpeerinfo()
for peer in peers:
ec, message = mvs_rpc.ban_node(peer)
self.assertEqual(ec, 0, message)
def fork_test( ):
origin = "origin"
popback = "popback"
# backup check point
_, (height, _) = mvs_rpc.get_info()
data_base_script(origin)
# run testcase
run_testcase()
# make this node partion with the others
peers = mvs_rpc.getpeerinfo()[1]
for peer in peers:
mvs_rpc.ban_node(peer)
try:
# popblock
ec, _ = mvs_rpc.pop_block(height + 1)
assert (ec == 0)
assert( mvs_rpc.get_info()[1][0] == height)
# check database
data_base_script(popback)
finally:
for peer in peers:
mvs_rpc.add_node(peer)
# check origin and popback
f_origin = open('./tools/%s/result.txt' % origin)
f_popback= open('./tools/%s/result.txt' % popback)
while True:
line1 = f_origin.readline()
line2 = f_popback.readline()
assert (line1 == line2)
if not (line1 or line2):
break
f_origin.close()
f_popback.close()
print "fork test passed!"
def __mine__():
result, (header_hash, seed_hash, boundary) = mvs_rpc.eth_get_work()
assert (result == 0)
result, (height, difficulty) = mvs_rpc.get_info()
assert (result == 0)
rounds = 100
nonce = 0
while True:
bin_nonce, mixhash = mine(block_number=height+1, difficulty=difficulty, mining_hash=header_hash,
rounds=rounds, start_nonce=nonce)
if bin_nonce:
break
nonce += rounds
return bin_nonce, '0x' + common.toString(header_hash), '0x' + common.toString(mixhash)
def fork(self):
try:
ming_round = 6
expect_hight = self.remote_ming(ming_round)
ec, message = mvs_rpc.add_node(self.remote_ip + ':5251')
self.assertEqual(ec, 0, message)
import time
new_height = 0
# wait until the fork complete
timeout = 300
while new_height < expect_hight: # self.partion_height + ming_round:
time.sleep(1)
ec, message = mvs_rpc.get_info()
self.assertEqual(ec, 0, message)
new_height = message[0]
timeout -= 1
self.assertGreater(timeout, 0, "wait fork timeout error!")
except:
print 'unable to connect remote url:' + self.remote_ip