def test_wait_for_and_get_block(self):
bts = self.bts
b = Blockchain(steem_instance=bts, max_block_wait_repetition=18)
start_num = b.get_current_block_num()
blocknum = start_num
last_fetched_block_num = None
for i in range(3):
block = b.wait_for_and_get_block(blocknum)
last_fetched_block_num = block.block_num
blocknum = last_fetched_block_num + 1
self.assertEqual(last_fetched_block_num, start_num + 2)
b2 = Blockchain(steem_instance=bts, max_block_wait_repetition=1)
with self.assertRaises(BlockWaitTimeExceeded):
for i in range(300):
block = b2.wait_for_and_get_block(blocknum)
last_fetched_block_num = block.block_num
blocknum = last_fetched_block_num + 2
def test_wait_for_and_get_block(self, node_param):
if node_param == "non_appbase":
bts = self.bts
else:
bts = self.appbase
b = Blockchain(steem_instance=bts, max_block_wait_repetition=6)
start_num = b.get_current_block_num()
blocknum = start_num
last_fetched_block_num = None
for i in range(3):
block = b.wait_for_and_get_block(blocknum)
last_fetched_block_num = block.block_num
blocknum = last_fetched_block_num + 2
self.assertEqual(last_fetched_block_num, start_num + 4)
def find_block_num_by_timestamp(blockchain: Blockchain, low_block_num,
high_block_num, key_timestamp):
low = low_block_num
high = high_block_num
while high >= low:
mid = low + (high - low) // 2
mid_block = blockchain.wait_for_and_get_block(mid)
is_equal_timestamp = (mid_block["timestamp"] - timedelta(seconds=5) <=
key_timestamp <=
mid_block["timestamp"] + timedelta(seconds=5))
if is_equal_timestamp:
return mid
elif mid_block["timestamp"] < key_timestamp:
low = mid + 1
else:
high = mid - 1
return None
