def post_blocks(api, blocks_cnt, chain_data_file):
premined_blocks = chain_downloader.load_from_file(chain_data_file)
for i in range(1, blocks_cnt + 1):
block = chain_downloader.get_block(premined_blocks, height=i)
api.post_block(block)
wait(lambda: api.get_top().height >= i,
timeout_seconds=3,
sleep_seconds=0.25)
def test_block_post_wrong_pow():
"""
Test rejecting a block with wrong PoW
"""
api = common.external_api(node)
top = api.get_top()
## ensure there is only genesis block
assert_equals(top.height, 0)
premined_blocks = chain_downloader.load_from_file(chain_data_file)
block1 = chain_downloader.get_block(premined_blocks, height=1)
block2 = chain_downloader.get_block(premined_blocks, height=2)
# modify the pow of block1 to be invalid against the header
block1.pow = block2.pow
res = api.post_block(block1)
time.sleep(1)
top = api.get_top()
assert_equals(top.height, 0)
def test_block_post():
"""
Test case for posting a new block
"""
api = common.external_api(node)
top = api.get_top()
## ensure there is only genesis block
assert_equals(top.height, 0)
premined_blocks = chain_downloader.load_from_file(chain_data_file)
block = chain_downloader.get_block(premined_blocks, height=1)
res = api.post_block(block)
time.sleep(1)
top = api.get_top()
assert_equals(top.height, 1)
assert_equals(top.pow, str(block.pow))
assert_equals(top.state_hash, block.state_hash)
assert_equals(top.txs_hash, block.txs_hash)
assert_equals(top.version, block.version)
def test_block_post_3():
"""
Test case for posting 3 blocks
"""
api = common.external_api(node)
top = api.get_top()
## ensure there is only genesis block
assert_equals(top.height, 0)
premined_blocks = chain_downloader.load_from_file(chain_data_file)
for i in range(1, 4):
block = chain_downloader.get_block(premined_blocks, height=i)
api.post_block(block)
time.sleep(1)
top = api.get_top()
# ensure block is accepted
assert_equals(top.height, i)
assert_equals(top.pow, str(block.pow))
assert_equals(top.state_hash, block.state_hash)
assert_equals(top.txs_hash, block.txs_hash)
assert_equals(top.version, block.version)