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-rwxr-xr-xtest/functional/combine_logs.py2
-rwxr-xr-xtest/functional/feature_logging.py2
-rwxr-xr-xtest/functional/feature_uacomment.py4
-rwxr-xr-xtest/functional/interface_zmq.py99
-rwxr-xr-xtest/functional/rpc_blockchain.py2
-rwxr-xr-xtest/functional/rpc_setban.py2
-rwxr-xr-xtest/functional/test_framework/messages.py4
-rwxr-xr-xtest/functional/test_framework/test_node.py36
-rwxr-xr-xtest/functional/wallet_basic.py5
-rwxr-xr-xtest/functional/wallet_importmulti.py4
-rwxr-xr-xtest/functional/wallet_multiwallet.py6
-rwxr-xr-x[-rw-r--r--]test/functional/wallet_watchonly.py0
-rwxr-xr-xtest/lint/check-doc.py4
-rwxr-xr-xtest/lint/check-rpc-mappings.py6
-rwxr-xr-xtest/lint/lint-format-strings.py2
-rwxr-xr-xtest/lint/lint-includes.sh3
-rwxr-xr-xtest/lint/lint-python-mutable-default-parameters.sh52
-rwxr-xr-xtest/lint/lint-python.sh1
-rwxr-xr-xtest/lint/lint-spelling.sh5
19 files changed, 166 insertions, 73 deletions
diff --git a/test/functional/combine_logs.py b/test/functional/combine_logs.py
index 5364ac4b8c..367d0f6916 100755
--- a/test/functional/combine_logs.py
+++ b/test/functional/combine_logs.py
@@ -81,7 +81,7 @@ def read_logs(tmp_dir):
chain = glob.glob("{}/node0/*/debug.log".format(tmp_dir))
if chain:
chain = chain[0] # pick the first one if more than one chain was found (should never happen)
- chain = re.search('node0/(.+?)/debug\.log$', chain).group(1) # extract the chain name
+ chain = re.search(r'node0/(.+?)/debug\.log$', chain).group(1) # extract the chain name
else:
chain = 'regtest' # fallback to regtest (should only happen when none exists)
diff --git a/test/functional/feature_logging.py b/test/functional/feature_logging.py
index 8bb7e02695..e6ff21ee9c 100755
--- a/test/functional/feature_logging.py
+++ b/test/functional/feature_logging.py
@@ -36,7 +36,7 @@ class LoggingTest(BitcoinTestFramework):
invdir = self.relative_log_path("foo")
invalidname = os.path.join("foo", "foo.log")
self.stop_node(0)
- exp_stderr = "Error: Could not open debug log file \S+$"
+ exp_stderr = r"Error: Could not open debug log file \S+$"
self.nodes[0].assert_start_raises_init_error(["-debuglogfile=%s" % (invalidname)], exp_stderr, match=ErrorMatch.FULL_REGEX)
assert not os.path.isfile(os.path.join(invdir, "foo.log"))
diff --git a/test/functional/feature_uacomment.py b/test/functional/feature_uacomment.py
index fb4ad21359..85c250173f 100755
--- a/test/functional/feature_uacomment.py
+++ b/test/functional/feature_uacomment.py
@@ -27,12 +27,12 @@ class UacommentTest(BitcoinTestFramework):
self.log.info("test -uacomment max length")
self.stop_node(0)
- expected = "Error: Total length of network version string \([0-9]+\) exceeds maximum length \(256\). Reduce the number or size of uacomments."
+ expected = r"Error: Total length of network version string \([0-9]+\) exceeds maximum length \(256\). Reduce the number or size of uacomments."
self.nodes[0].assert_start_raises_init_error(["-uacomment=" + 'a' * 256], expected, match=ErrorMatch.FULL_REGEX)
self.log.info("test -uacomment unsafe characters")
for unsafe_char in ['/', ':', '(', ')', '₿', '🏃']:
- expected = "Error: User Agent comment \(" + re.escape(unsafe_char) + "\) contains unsafe characters."
+ expected = r"Error: User Agent comment \(" + re.escape(unsafe_char) + r"\) contains unsafe characters."
self.nodes[0].assert_start_raises_init_error(["-uacomment=" + unsafe_char], expected, match=ErrorMatch.FULL_REGEX)
diff --git a/test/functional/interface_zmq.py b/test/functional/interface_zmq.py
index 1ba781c539..5aea10fbce 100755
--- a/test/functional/interface_zmq.py
+++ b/test/functional/interface_zmq.py
@@ -8,10 +8,9 @@ import struct
from test_framework.address import ADDRESS_BCRT1_UNSPENDABLE
from test_framework.test_framework import BitcoinTestFramework
from test_framework.messages import CTransaction, hash256
-from test_framework.util import assert_equal
+from test_framework.util import assert_equal, connect_nodes
from io import BytesIO
-
-ADDRESS = "tcp://127.0.0.1:28332"
+from time import sleep
def hash256_reversed(byte_str):
return hash256(byte_str)[::-1]
@@ -43,66 +42,64 @@ class ZMQTest (BitcoinTestFramework):
self.skip_if_no_py3_zmq()
self.skip_if_no_bitcoind_zmq()
- def setup_nodes(self):
+ def run_test(self):
import zmq
+ self.ctx = zmq.Context()
+ try:
+ self.test_basic()
+ self.test_reorg()
+ finally:
+ # Destroy the ZMQ context.
+ self.log.debug("Destroying ZMQ context")
+ self.ctx.destroy(linger=None)
- # Initialize ZMQ context and socket.
+ def test_basic(self):
# All messages are received in the same socket which means
# that this test fails if the publishing order changes.
# Note that the publishing order is not defined in the documentation and
# is subject to change.
- self.zmq_context = zmq.Context()
- socket = self.zmq_context.socket(zmq.SUB)
+ import zmq
+ address = 'tcp://127.0.0.1:28332'
+ socket = self.ctx.socket(zmq.SUB)
socket.set(zmq.RCVTIMEO, 60000)
- socket.connect(ADDRESS)
# Subscribe to all available topics.
- self.hashblock = ZMQSubscriber(socket, b"hashblock")
- self.hashtx = ZMQSubscriber(socket, b"hashtx")
- self.rawblock = ZMQSubscriber(socket, b"rawblock")
- self.rawtx = ZMQSubscriber(socket, b"rawtx")
-
- self.extra_args = [
- ["-zmqpub%s=%s" % (sub.topic.decode(), ADDRESS) for sub in [self.hashblock, self.hashtx, self.rawblock, self.rawtx]],
- [],
- ]
- self.add_nodes(self.num_nodes, self.extra_args)
- self.start_nodes()
- self.import_deterministic_coinbase_privkeys()
+ hashblock = ZMQSubscriber(socket, b"hashblock")
+ hashtx = ZMQSubscriber(socket, b"hashtx")
+ rawblock = ZMQSubscriber(socket, b"rawblock")
+ rawtx = ZMQSubscriber(socket, b"rawtx")
- def run_test(self):
- try:
- self._zmq_test()
- finally:
- # Destroy the ZMQ context.
- self.log.debug("Destroying ZMQ context")
- self.zmq_context.destroy(linger=None)
+ self.restart_node(0, ["-zmqpub%s=%s" % (sub.topic.decode(), address) for sub in [hashblock, hashtx, rawblock, rawtx]])
+ connect_nodes(self.nodes[0], 1)
+ socket.connect(address)
+ # Relax so that the subscriber is ready before publishing zmq messages
+ sleep(0.2)
- def _zmq_test(self):
num_blocks = 5
self.log.info("Generate %(n)d blocks (and %(n)d coinbase txes)" % {"n": num_blocks})
genhashes = self.nodes[0].generatetoaddress(num_blocks, ADDRESS_BCRT1_UNSPENDABLE)
+
self.sync_all()
for x in range(num_blocks):
# Should receive the coinbase txid.
- txid = self.hashtx.receive()
+ txid = hashtx.receive()
# Should receive the coinbase raw transaction.
- hex = self.rawtx.receive()
+ hex = rawtx.receive()
tx = CTransaction()
tx.deserialize(BytesIO(hex))
tx.calc_sha256()
assert_equal(tx.hash, txid.hex())
# Should receive the generated block hash.
- hash = self.hashblock.receive().hex()
+ hash = hashblock.receive().hex()
assert_equal(genhashes[x], hash)
# The block should only have the coinbase txid.
assert_equal([txid.hex()], self.nodes[1].getblock(hash)["tx"])
# Should receive the generated raw block.
- block = self.rawblock.receive()
+ block = rawblock.receive()
assert_equal(genhashes[x], hash256_reversed(block[:80]).hex())
if self.is_wallet_compiled():
@@ -111,23 +108,49 @@ class ZMQTest (BitcoinTestFramework):
self.sync_all()
# Should receive the broadcasted txid.
- txid = self.hashtx.receive()
+ txid = hashtx.receive()
assert_equal(payment_txid, txid.hex())
# Should receive the broadcasted raw transaction.
- hex = self.rawtx.receive()
+ hex = rawtx.receive()
assert_equal(payment_txid, hash256_reversed(hex).hex())
self.log.info("Test the getzmqnotifications RPC")
assert_equal(self.nodes[0].getzmqnotifications(), [
- {"type": "pubhashblock", "address": ADDRESS, "hwm": 1000},
- {"type": "pubhashtx", "address": ADDRESS, "hwm": 1000},
- {"type": "pubrawblock", "address": ADDRESS, "hwm": 1000},
- {"type": "pubrawtx", "address": ADDRESS, "hwm": 1000},
+ {"type": "pubhashblock", "address": address, "hwm": 1000},
+ {"type": "pubhashtx", "address": address, "hwm": 1000},
+ {"type": "pubrawblock", "address": address, "hwm": 1000},
+ {"type": "pubrawtx", "address": address, "hwm": 1000},
])
assert_equal(self.nodes[1].getzmqnotifications(), [])
+ def test_reorg(self):
+ import zmq
+ address = 'tcp://127.0.0.1:28333'
+ socket = self.ctx.socket(zmq.SUB)
+ socket.set(zmq.RCVTIMEO, 60000)
+ hashblock = ZMQSubscriber(socket, b'hashblock')
+
+ # Should only notify the tip if a reorg occurs
+ self.restart_node(0, ['-zmqpub%s=%s' % (hashblock.topic.decode(), address)])
+ socket.connect(address)
+ # Relax so that the subscriber is ready before publishing zmq messages
+ sleep(0.2)
+
+ # Generate 1 block in nodes[0] and receive all notifications
+ self.nodes[0].generatetoaddress(1, ADDRESS_BCRT1_UNSPENDABLE)
+ assert_equal(self.nodes[0].getbestblockhash(), hashblock.receive().hex())
+
+ # Generate 2 blocks in nodes[1]
+ self.nodes[1].generatetoaddress(2, ADDRESS_BCRT1_UNSPENDABLE)
+
+ # nodes[0] will reorg chain after connecting back nodes[1]
+ connect_nodes(self.nodes[0], 1)
+
+ # Should receive nodes[1] tip
+ assert_equal(self.nodes[1].getbestblockhash(), hashblock.receive().hex())
+
if __name__ == '__main__':
ZMQTest().main()
diff --git a/test/functional/rpc_blockchain.py b/test/functional/rpc_blockchain.py
index 6c30e05084..266a0d6cd2 100755
--- a/test/functional/rpc_blockchain.py
+++ b/test/functional/rpc_blockchain.py
@@ -186,6 +186,7 @@ class BlockchainTest(BitcoinTestFramework):
assert_equal(chaintxstats['time'], b200['time'])
assert_equal(chaintxstats['txcount'], 201)
assert_equal(chaintxstats['window_final_block_hash'], b200_hash)
+ assert_equal(chaintxstats['window_final_block_height'], 200)
assert_equal(chaintxstats['window_block_count'], 199)
assert_equal(chaintxstats['window_tx_count'], 199)
assert_equal(chaintxstats['window_interval'], time_diff)
@@ -195,6 +196,7 @@ class BlockchainTest(BitcoinTestFramework):
assert_equal(chaintxstats['time'], b1['time'])
assert_equal(chaintxstats['txcount'], 2)
assert_equal(chaintxstats['window_final_block_hash'], b1_hash)
+ assert_equal(chaintxstats['window_final_block_height'], 1)
assert_equal(chaintxstats['window_block_count'], 0)
assert 'window_tx_count' not in chaintxstats
assert 'window_interval' not in chaintxstats
diff --git a/test/functional/rpc_setban.py b/test/functional/rpc_setban.py
index 423741fd27..b1d2b6f431 100755
--- a/test/functional/rpc_setban.py
+++ b/test/functional/rpc_setban.py
@@ -26,7 +26,7 @@ class SetBanTests(BitcoinTestFramework):
self.nodes[1].setban("127.0.0.1", "add")
# Node 0 should not be able to reconnect
- with self.nodes[1].assert_debug_log(expected_msgs=['dropped (banned)\n'],timeout=5):
+ with self.nodes[1].assert_debug_log(expected_msgs=['dropped (banned)\n'], timeout=5):
self.restart_node(1, [])
self.nodes[0].addnode("127.0.0.1:" + str(p2p_port(1)), "onetry")
diff --git a/test/functional/test_framework/messages.py b/test/functional/test_framework/messages.py
index 89a5a65e64..917efaa833 100755
--- a/test/functional/test_framework/messages.py
+++ b/test/functional/test_framework/messages.py
@@ -803,7 +803,9 @@ class HeaderAndShortIDs:
return [ key0, key1 ]
# Version 2 compact blocks use wtxid in shortids (rather than txid)
- def initialize_from_block(self, block, nonce=0, prefill_list = [0], use_witness = False):
+ def initialize_from_block(self, block, nonce=0, prefill_list=None, use_witness=False):
+ if prefill_list is None:
+ prefill_list = [0]
self.header = CBlockHeader(block)
self.nonce = nonce
self.prefilled_txn = [ PrefilledTransaction(i, block.vtx[i]) for i in prefill_list ]
diff --git a/test/functional/test_framework/test_node.py b/test/functional/test_framework/test_node.py
index 9667cf4ea4..55e6d4caa6 100755
--- a/test/functional/test_framework/test_node.py
+++ b/test/functional/test_framework/test_node.py
@@ -313,24 +313,24 @@ class TestNode():
with open(debug_log, encoding='utf-8') as dl:
dl.seek(0, 2)
prev_size = dl.tell()
- try:
- yield
- finally:
- while True:
- found = True
- with open(debug_log, encoding='utf-8') as dl:
- dl.seek(prev_size)
- log = dl.read()
- print_log = " - " + "\n - ".join(log.splitlines())
- for expected_msg in expected_msgs:
- if re.search(re.escape(expected_msg), log, flags=re.MULTILINE) is None:
- found = False
- if found:
- return
- if time.time() >= time_end:
- break
- time.sleep(0.05)
- self._raise_assertion_error('Expected messages "{}" does not partially match log:\n\n{}\n\n'.format(str(expected_msgs), print_log))
+
+ yield
+
+ while True:
+ found = True
+ with open(debug_log, encoding='utf-8') as dl:
+ dl.seek(prev_size)
+ log = dl.read()
+ print_log = " - " + "\n - ".join(log.splitlines())
+ for expected_msg in expected_msgs:
+ if re.search(re.escape(expected_msg), log, flags=re.MULTILINE) is None:
+ found = False
+ if found:
+ return
+ if time.time() >= time_end:
+ break
+ time.sleep(0.05)
+ self._raise_assertion_error('Expected messages "{}" does not partially match log:\n\n{}\n\n'.format(str(expected_msgs), print_log))
@contextlib.contextmanager
def assert_memory_usage_stable(self, *, increase_allowed=0.03):
diff --git a/test/functional/wallet_basic.py b/test/functional/wallet_basic.py
index 34e84fcf55..74350649c7 100755
--- a/test/functional/wallet_basic.py
+++ b/test/functional/wallet_basic.py
@@ -499,6 +499,11 @@ class WalletTest(BitcoinTestFramework):
self.nodes[0].setlabel(change, 'foobar')
assert_equal(self.nodes[0].getaddressinfo(change)['ischange'], False)
+ # Test "decoded" field value in gettransaction response
+ self.log.info("Testing gettransaction decoding...")
+ tx = self.nodes[0].gettransaction(txid=txid, decode=True)
+ assert_equal(tx["decoded"], self.nodes[0].decoderawtransaction(tx["hex"]))
+
if __name__ == '__main__':
WalletTest().main()
diff --git a/test/functional/wallet_importmulti.py b/test/functional/wallet_importmulti.py
index e4a4ab1f35..23748e5dd7 100755
--- a/test/functional/wallet_importmulti.py
+++ b/test/functional/wallet_importmulti.py
@@ -44,8 +44,10 @@ class ImportMultiTest(BitcoinTestFramework):
def setup_network(self):
self.setup_nodes()
- def test_importmulti(self, req, success, error_code=None, error_message=None, warnings=[]):
+ def test_importmulti(self, req, success, error_code=None, error_message=None, warnings=None):
"""Run importmulti and assert success"""
+ if warnings is None:
+ warnings = []
result = self.nodes[1].importmulti([req])
observed_warnings = []
if 'warnings' in result[0]:
diff --git a/test/functional/wallet_multiwallet.py b/test/functional/wallet_multiwallet.py
index 984ffab5a4..99d2c77587 100755
--- a/test/functional/wallet_multiwallet.py
+++ b/test/functional/wallet_multiwallet.py
@@ -93,12 +93,12 @@ class MultiWalletTest(BitcoinTestFramework):
# should not initialize if one wallet is a copy of another
shutil.copyfile(wallet_dir('w8'), wallet_dir('w8_copy'))
- exp_stderr = "BerkeleyBatch: Can't open database w8_copy \(duplicates fileid \w+ from w8\)"
+ exp_stderr = r"BerkeleyBatch: Can't open database w8_copy \(duplicates fileid \w+ from w8\)"
self.nodes[0].assert_start_raises_init_error(['-wallet=w8', '-wallet=w8_copy'], exp_stderr, match=ErrorMatch.PARTIAL_REGEX)
# should not initialize if wallet file is a symlink
os.symlink('w8', wallet_dir('w8_symlink'))
- self.nodes[0].assert_start_raises_init_error(['-wallet=w8_symlink'], 'Error: Invalid -wallet path \'w8_symlink\'\. .*', match=ErrorMatch.FULL_REGEX)
+ self.nodes[0].assert_start_raises_init_error(['-wallet=w8_symlink'], r'Error: Invalid -wallet path \'w8_symlink\'\. .*', match=ErrorMatch.FULL_REGEX)
# should not initialize if the specified walletdir does not exist
self.nodes[0].assert_start_raises_init_error(['-walletdir=bad'], 'Error: Specified -walletdir "bad" does not exist')
@@ -139,7 +139,7 @@ class MultiWalletTest(BitcoinTestFramework):
competing_wallet_dir = os.path.join(self.options.tmpdir, 'competing_walletdir')
os.mkdir(competing_wallet_dir)
self.restart_node(0, ['-walletdir=' + competing_wallet_dir])
- exp_stderr = "Error: Error initializing wallet database environment \"\S+competing_walletdir\"!"
+ exp_stderr = r"Error: Error initializing wallet database environment \"\S+competing_walletdir\"!"
self.nodes[1].assert_start_raises_init_error(['-walletdir=' + competing_wallet_dir], exp_stderr, match=ErrorMatch.PARTIAL_REGEX)
self.restart_node(0, extra_args)
diff --git a/test/functional/wallet_watchonly.py b/test/functional/wallet_watchonly.py
index be8d7714fb..be8d7714fb 100644..100755
--- a/test/functional/wallet_watchonly.py
+++ b/test/functional/wallet_watchonly.py
diff --git a/test/lint/check-doc.py b/test/lint/check-doc.py
index 1d6122a13d..bd947d194c 100755
--- a/test/lint/check-doc.py
+++ b/test/lint/check-doc.py
@@ -15,8 +15,8 @@ import re
FOLDER_GREP = 'src'
FOLDER_TEST = 'src/test/'
-REGEX_ARG = '(?:ForceSet|SoftSet|Get|Is)(?:Bool)?Args?(?:Set)?\("(-[^"]+)"'
-REGEX_DOC = 'AddArg\("(-[^"=]+?)(?:=|")'
+REGEX_ARG = r'(?:ForceSet|SoftSet|Get|Is)(?:Bool)?Args?(?:Set)?\("(-[^"]+)"'
+REGEX_DOC = r'AddArg\("(-[^"=]+?)(?:=|")'
CMD_ROOT_DIR = '$(git rev-parse --show-toplevel)/{}'.format(FOLDER_GREP)
CMD_GREP_ARGS = r"git grep --perl-regexp '{}' -- {} ':(exclude){}'".format(REGEX_ARG, CMD_ROOT_DIR, FOLDER_TEST)
CMD_GREP_WALLET_ARGS = r"git grep --function-context 'void WalletInit::AddWalletOptions' -- {} | grep AddArg".format(CMD_ROOT_DIR)
diff --git a/test/lint/check-rpc-mappings.py b/test/lint/check-rpc-mappings.py
index 137cc82b5d..a33ab17f3f 100755
--- a/test/lint/check-rpc-mappings.py
+++ b/test/lint/check-rpc-mappings.py
@@ -48,13 +48,13 @@ def process_commands(fname):
for line in f:
line = line.rstrip()
if not in_rpcs:
- if re.match("static const CRPCCommand .*\[\] =", line):
+ if re.match(r"static const CRPCCommand .*\[\] =", line):
in_rpcs = True
else:
if line.startswith('};'):
in_rpcs = False
elif '{' in line and '"' in line:
- m = re.search('{ *("[^"]*"), *("[^"]*"), *&([^,]*), *{([^}]*)} *},', line)
+ m = re.search(r'{ *("[^"]*"), *("[^"]*"), *&([^,]*), *{([^}]*)} *},', line)
assert m, 'No match to table expression: %s' % line
name = parse_string(m.group(2))
args_str = m.group(4).strip()
@@ -80,7 +80,7 @@ def process_mapping(fname):
if line.startswith('};'):
in_rpcs = False
elif '{' in line and '"' in line:
- m = re.search('{ *("[^"]*"), *([0-9]+) *, *("[^"]*") *},', line)
+ m = re.search(r'{ *("[^"]*"), *([0-9]+) *, *("[^"]*") *},', line)
assert m, 'No match to table expression: %s' % line
name = parse_string(m.group(1))
idx = int(m.group(2))
diff --git a/test/lint/lint-format-strings.py b/test/lint/lint-format-strings.py
index 47ad896589..9f34d0f4dd 100755
--- a/test/lint/lint-format-strings.py
+++ b/test/lint/lint-format-strings.py
@@ -55,7 +55,7 @@ def normalize(s):
assert type(s) is str
s = s.replace("\n", " ")
s = s.replace("\t", " ")
- s = re.sub("/\*.*?\*/", " ", s)
+ s = re.sub(r"/\*.*?\*/", " ", s)
s = re.sub(" {2,}", " ", s)
return s.strip()
diff --git a/test/lint/lint-includes.sh b/test/lint/lint-includes.sh
index 4b9e2615b6..d27e45a23f 100755
--- a/test/lint/lint-includes.sh
+++ b/test/lint/lint-includes.sh
@@ -11,6 +11,9 @@
export LC_ALL=C
IGNORE_REGEXP="/(leveldb|secp256k1|univalue)/"
+# cd to root folder of git repo for git ls-files to work properly
+cd "$(dirname $0)/../.." || exit 1
+
filter_suffix() {
git ls-files | grep -E "^src/.*\.${1}"'$' | grep -Ev "${IGNORE_REGEXP}"
}
diff --git a/test/lint/lint-python-mutable-default-parameters.sh b/test/lint/lint-python-mutable-default-parameters.sh
new file mode 100755
index 0000000000..1f9f035d30
--- /dev/null
+++ b/test/lint/lint-python-mutable-default-parameters.sh
@@ -0,0 +1,52 @@
+#!/usr/bin/env bash
+#
+# Copyright (c) 2019 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+#
+# Detect when a mutable list or dict is used as a default parameter value in a Python function.
+
+export LC_ALL=C
+EXIT_CODE=0
+OUTPUT=$(git grep -E '^\s*def [a-zA-Z0-9_]+\(.*=\s*(\[|\{)' -- "*.py")
+if [[ ${OUTPUT} != "" ]]; then
+ echo "A mutable list or dict seems to be used as default parameter value:"
+ echo
+ echo "${OUTPUT}"
+ echo
+ cat << EXAMPLE
+This is how mutable list and dict default parameter values behave:
+
+>>> def f(i, j=[], k={}):
+... j.append(i)
+... k[i] = True
+... return j, k
+...
+>>> f(1)
+([1], {1: True})
+>>> f(1)
+([1, 1], {1: True})
+>>> f(2)
+([1, 1, 2], {1: True, 2: True})
+
+The intended behaviour was likely:
+
+>>> def f(i, j=None, k=None):
+... if j is None:
+... j = []
+... if k is None:
+... k = {}
+... j.append(i)
+... k[i] = True
+... return j, k
+...
+>>> f(1)
+([1], {1: True})
+>>> f(1)
+([1], {1: True})
+>>> f(2)
+([2], {2: True})
+EXAMPLE
+ EXIT_CODE=1
+fi
+exit ${EXIT_CODE}
diff --git a/test/lint/lint-python.sh b/test/lint/lint-python.sh
index a76806003f..3c82ec19e3 100755
--- a/test/lint/lint-python.sh
+++ b/test/lint/lint-python.sh
@@ -73,7 +73,6 @@ enabled=(
W291 # trailing whitespace
W292 # no newline at end of file
W293 # blank line contains whitespace
- W504 # line break after binary operator
W601 # .has_key() is deprecated, use "in"
W602 # deprecated form of raising exception
W603 # "<>" is deprecated, use "!="
diff --git a/test/lint/lint-spelling.sh b/test/lint/lint-spelling.sh
index 5d672698a7..e70b73e1cc 100755
--- a/test/lint/lint-spelling.sh
+++ b/test/lint/lint-spelling.sh
@@ -9,6 +9,11 @@
export LC_ALL=C
+if ! command -v codespell > /dev/null; then
+ echo "Skipping spell check linting since codespell is not installed."
+ exit 0
+fi
+
IGNORE_WORDS_FILE=test/lint/lint-spelling.ignore-words.txt
if ! codespell --check-filenames --disable-colors --quiet-level=7 --ignore-words=${IGNORE_WORDS_FILE} $(git ls-files -- ":(exclude)build-aux/m4/" ":(exclude)contrib/seeds/*.txt" ":(exclude)depends/" ":(exclude)doc/release-notes/" ":(exclude)src/leveldb/" ":(exclude)src/qt/locale/" ":(exclude)src/secp256k1/" ":(exclude)src/univalue/"); then
echo "^ Warning: codespell identified likely spelling errors. Any false positives? Add them to the list of ignored words in ${IGNORE_WORDS_FILE}"