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-rwxr-xr-xtest/functional/feature_versionbits_warning.py35
1 files changed, 18 insertions, 17 deletions
diff --git a/test/functional/feature_versionbits_warning.py b/test/functional/feature_versionbits_warning.py
index 0bfe94622f..8ae78898d0 100755
--- a/test/functional/feature_versionbits_warning.py
+++ b/test/functional/feature_versionbits_warning.py
@@ -7,17 +7,18 @@
Generate chains with block versions that appear to be signalling unknown
soft-forks, and test that warning alerts are generated.
"""
-
-from test_framework.mininode import *
-from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import *
+import os
import re
+
from test_framework.blocktools import create_block, create_coinbase
+from test_framework.messages import msg_block
+from test_framework.mininode import P2PInterface, network_thread_start
+from test_framework.test_framework import BitcoinTestFramework
-VB_PERIOD = 144 # versionbits period length for regtest
-VB_THRESHOLD = 108 # versionbits activation threshold for regtest
+VB_PERIOD = 144 # versionbits period length for regtest
+VB_THRESHOLD = 108 # versionbits activation threshold for regtest
VB_TOP_BITS = 0x20000000
-VB_UNKNOWN_BIT = 27 # Choose a bit unassigned to any deployment
+VB_UNKNOWN_BIT = 27 # Choose a bit unassigned to any deployment
WARN_UNKNOWN_RULES_MINED = "Unknown block versions being mined! It's possible unknown rules are in effect"
WARN_UNKNOWN_RULES_ACTIVE = "unknown new rules activated (versionbit {})".format(VB_UNKNOWN_BIT)
@@ -35,21 +36,21 @@ class VersionBitsWarningTest(BitcoinTestFramework):
def setup_network(self):
self.alert_filename = os.path.join(self.options.tmpdir, "alert.txt")
# Open and close to create zero-length file
- with open(self.alert_filename, 'w', encoding='utf8') as _:
+ with open(self.alert_filename, 'w', encoding='utf8'):
pass
self.extra_args = [["-alertnotify=echo %s >> \"" + self.alert_filename + "\""]]
self.setup_nodes()
- # Send numblocks blocks via peer with nVersionToUse set.
- def send_blocks_with_version(self, peer, numblocks, nVersionToUse):
+ # Send numblocks blocks via peer with version set.
+ def send_blocks_with_version(self, peer, numblocks, version):
tip = self.nodes[0].getbestblockhash()
height = self.nodes[0].getblockcount()
- block_time = self.nodes[0].getblockheader(tip)["time"]+1
+ block_time = self.nodes[0].getblockheader(tip)["time"] + 1
tip = int(tip, 16)
for _ in range(numblocks):
- block = create_block(tip, create_coinbase(height+1), block_time)
- block.nVersion = nVersionToUse
+ block = create_block(tip, create_coinbase(height + 1), block_time)
+ block.nVersion = version
block.solve()
peer.send_message(msg_block(block))
block_time += 1
@@ -76,8 +77,8 @@ class VersionBitsWarningTest(BitcoinTestFramework):
# 2. Now build one period of blocks on the tip, with < VB_THRESHOLD
# blocks signaling some unknown bit.
- nVersion = VB_TOP_BITS | (1<<VB_UNKNOWN_BIT)
- self.send_blocks_with_version(self.nodes[0].p2p, VB_THRESHOLD-1, nVersion)
+ version = VB_TOP_BITS | (1 << VB_UNKNOWN_BIT)
+ self.send_blocks_with_version(self.nodes[0].p2p, VB_THRESHOLD - 1, version)
# Fill rest of period with regular version blocks
self.nodes[0].generate(VB_PERIOD - VB_THRESHOLD + 1)
@@ -88,7 +89,7 @@ class VersionBitsWarningTest(BitcoinTestFramework):
# 3. Now build one period of blocks with >= VB_THRESHOLD blocks signaling
# some unknown bit
- self.send_blocks_with_version(self.nodes[0].p2p, VB_THRESHOLD, nVersion)
+ self.send_blocks_with_version(self.nodes[0].p2p, VB_THRESHOLD, version)
self.nodes[0].generate(VB_PERIOD - VB_THRESHOLD)
# Might not get a versionbits-related alert yet, as we should
# have gotten a different alert due to more than 51/100 blocks
@@ -103,7 +104,7 @@ class VersionBitsWarningTest(BitcoinTestFramework):
self.nodes[0].generate(VB_PERIOD)
self.stop_nodes()
# Empty out the alert file
- with open(self.alert_filename, 'w', encoding='utf8') as _:
+ with open(self.alert_filename, 'w', encoding='utf8'):
pass
self.start_nodes()