Merge #15419: qa: Always refresh cache to be out of ibd

fa2cdc9ac2 test: Simplify create_cache (MarcoFalke)
fa25210d62 qa: Fix wallet_txn_doublespend issue (MarcoFalke)
1111aecbb5 qa: Always refresh stale cache to be out of ibd (MarcoFalke)
fab0d85802 qa: Remove mocktime unless required (MarcoFalke)

Pull request description:

  When starting a test, we are always in IBD because the timestamps on cached blocks are in the past. Usually, we solve that by generating a block at the beginning of the test.

  That is clumsy and might even lead to other problems such as #15360 and https://github.com/bitcoin/bitcoin/issues/14446#issuecomment-461926598

  So fix that by getting rid of mocktime and always refreshing the last block of the cache when starting the test framework.

  Should fix #14446

Tree-SHA512: 6af09800f9c86131349a103af617a54551f5f3f3260d38e14e3f30fdd3d91a0feb0100c56cbb12eae4aeac5571ae4b530b16345cbb831d2670237b53351a22c1
This commit is contained in:
MarcoFalke 2019-02-25 11:44:18 -05:00 committed by UdjinM6
parent 44fda52d68
commit 5524c42b8c
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GPG Key ID: 83592BD1400D58D9
6 changed files with 56 additions and 28 deletions

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@ -44,6 +44,7 @@ RANGE_BEGIN = PORT_MIN + 2 * PORT_RANGE # Start after p2p and rpc ports
class ProxyTest(BitcoinTestFramework):
def set_test_params(self):
self.num_nodes = 4
self.setup_clean_chain = True
def setup_nodes(self):
self.have_ipv6 = test_ipv6_local()
@ -198,4 +199,3 @@ class ProxyTest(BitcoinTestFramework):
if __name__ == '__main__':
ProxyTest().main()

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@ -28,7 +28,6 @@ from test_framework.util import (
assert_equal,
assert_raises_rpc_error,
hex_str_to_bytes,
wait_until,
)
@ -37,7 +36,6 @@ class MempoolAcceptanceTest(BitcoinTestFramework):
self.num_nodes = 1
self.extra_args = [[
'-txindex',
'-reindex', # Need reindex for txindex
]] * self.num_nodes
self.supports_cli = False
@ -55,7 +53,7 @@ class MempoolAcceptanceTest(BitcoinTestFramework):
self.log.info('Start with empty mempool, and 200 blocks')
self.mempool_size = 0
wait_until(lambda: node.getblockcount() == 200)
assert_equal(node.getblockcount(), 200)
assert_equal(node.getmempoolinfo()['size'], self.mempool_size)
coins = node.listunspent()

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@ -31,10 +31,12 @@ from test_framework.util import (
assert_raises_rpc_error,
assert_is_hex_string,
assert_is_hash_string,
set_node_times,
)
from test_framework.blocktools import (
create_block,
create_coinbase,
TIME_GENESIS_BLOCK,
)
from test_framework.messages import (
CBlockHeader,
@ -48,10 +50,12 @@ from test_framework.mininode import (
class BlockchainTest(BitcoinTestFramework):
def set_test_params(self):
self.setup_clean_chain = True
self.num_nodes = 1
self.supports_cli = False
def run_test(self):
self.mine_chain()
self.restart_node(0, extra_args=['-stopatheight=207', '-prune=1', '-txindex=0']) # Set extra args with pruning after rescan is complete
# Actual tests
@ -65,6 +69,15 @@ class BlockchainTest(BitcoinTestFramework):
self._test_waitforblockheight()
assert self.nodes[0].verifychain(4, 0)
def mine_chain(self):
self.log.info('Create some old blocks')
address = self.nodes[0].get_deterministic_priv_key().address
for t in range(TIME_GENESIS_BLOCK, TIME_GENESIS_BLOCK + 200 * 156, 156):
# 156 sec steps from genesis block time
set_node_times(self.nodes, t)
self.nodes[0].generatetoaddress(1, address)
assert_equal(self.nodes[0].getblockchaininfo()['blocks'], 200)
def _test_getblockchaininfo(self):
self.log.info("Test getblockchaininfo")

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@ -55,6 +55,7 @@ from .util import (
get_chain_folder,
)
class TestStatus(Enum):
PASSED = 1
FAILED = 2
@ -353,6 +354,20 @@ class BitcoinTestFramework(metaclass=BitcoinTestMetaClass):
self.add_nodes(self.num_nodes, extra_args)
self.start_nodes()
self.import_deterministic_coinbase_privkeys()
if not self.setup_clean_chain:
for n in self.nodes:
assert_equal(n.getblockchaininfo()["blocks"], 199)
# To ensure that all nodes are out of IBD, the most recent block
# must have a timestamp not too old (see IsInitialBlockDownload()).
self.log.debug('Generate a block with current mocktime')
self.bump_mocktime(156 * 200)
block_hash = self.nodes[0].generate(1)[0]
block = self.nodes[0].getblock(blockhash=block_hash, verbosity=0)
for n in self.nodes:
n.submitblock(block)
chain_info = n.getblockchaininfo()
assert_equal(chain_info["blocks"], 200)
assert_equal(chain_info["initialblockdownload"], False)
def import_deterministic_coinbase_privkeys(self):
for n in self.nodes:
@ -499,15 +514,13 @@ class BitcoinTestFramework(metaclass=BitcoinTestMetaClass):
node.mocktime = 0
def bump_mocktime(self, t, update_nodes=True, nodes=None):
self.mocktime += t
if update_nodes:
set_node_times(nodes or self.nodes, self.mocktime)
if self.mocktime != 0:
self.mocktime += t
if update_nodes:
set_node_times(nodes or self.nodes, self.mocktime)
def set_cache_mocktime(self):
# For backwared compatibility of the python scripts
# with previous versions of the cache, set MOCKTIME
# to regtest genesis time + (201 * 156)
self.mocktime = TIME_GENESIS_BLOCK + (201 * 156)
self.mocktime = TIME_GENESIS_BLOCK + (199 * 156)
for node in self.nodes:
node.mocktime = self.mocktime
@ -549,7 +562,7 @@ class BitcoinTestFramework(metaclass=BitcoinTestMetaClass):
def _initialize_chain(self, extra_args=None):
"""Initialize a pre-mined blockchain for use by the test.
Create a cache of a 200-block-long chain (with wallet) for MAX_NODES
Create a cache of a 199-block-long chain (with wallet) for MAX_NODES
Afterward, create num_nodes copies from the cache."""
assert self.num_nodes <= MAX_NODES
@ -591,22 +604,19 @@ class BitcoinTestFramework(metaclass=BitcoinTestMetaClass):
for node in self.nodes:
node.wait_for_rpc_connection()
# Create a 200-block-long chain; each of the 4 first nodes
# Create a 199-block-long chain; each of the 4 first nodes
# gets 25 mature blocks and 25 immature.
# Note: To preserve compatibility with older versions of
# initialize_chain, only 4 nodes will generate coins.
#
# blocks are created with timestamps 10 minutes apart
# starting from 2010 minutes in the past
block_time = TIME_GENESIS_BLOCK
for i in range(2):
for peer in range(4):
for j in range(25):
set_node_times(self.nodes, block_time)
self.nodes[peer].generatetoaddress(1, self.nodes[peer].get_deterministic_priv_key().address)
block_time += 156
# Must sync before next peer starts generating blocks
self.sync_blocks()
# The 4th node gets only 24 immature blocks so that the very last
# block in the cache does not age too much (have an old tip age).
# This is needed so that we are out of IBD when the test starts,
# see the tip age check in IsInitialBlockDownload().
self.set_genesis_mocktime()
for i in range(8):
self.bump_mocktime((25 if i != 7 else 24) * 156)
self.nodes[0].generatetoaddress(25 if i != 7 else 24, self.nodes[i % 4].get_deterministic_priv_key().address)
sync_blocks(self.nodes)
for n in self.nodes:
assert_equal(n.getblockchaininfo()["blocks"], 199)
# Shut them down, and clean up cache directories:
self.stop_nodes()

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@ -11,7 +11,6 @@ from test_framework.util import assert_array_result, assert_equal
class ListTransactionsTest(BitcoinTestFramework):
def set_test_params(self):
self.num_nodes = 2
self.set_cache_mocktime()
def skip_test_if_missing_module(self):
self.skip_if_no_wallet()

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@ -34,6 +34,14 @@ class TxnMallTest(BitcoinTestFramework):
def run_test(self):
# All nodes should start with 12,500 DASH:
starting_balance = 12500
# All nodes should be out of IBD.
# If the nodes are not all out of IBD, that can interfere with
# blockchain sync later in the test when nodes are connected, due to
# timing issues.
for n in self.nodes:
assert n.getblockchaininfo()["initialblockdownload"] == False
for i in range(4):
assert_equal(self.nodes[i].getbalance(), starting_balance)
self.nodes[i].getnewaddress("") # bug workaround, coins generated assigned to first getnewaddress!