dash/test/functional/feature_dip0020_activation.py
MarcoFalke 9f4f52ae4e
Merge #13054: tests: Enable automatic detection of undefined names in Python tests scripts. Remove wildcard imports.
68400d8b96 tests: Use explicit imports (practicalswift)

Pull request description:

  Enable automatic detection of undefined names in Python tests scripts. Remove wildcard imports.

  Wildcard imports make it unclear which names are present in the namespace, confusing both readers and many automated tools.

  An additional benefit of not using wildcard imports in tests scripts is that readers of a test script then can infer the rough testing scope just by looking at the imports.

  Before this commit:

  ```
  $ contrib/devtools/lint-python.sh | head -10
  ./test/functional/feature_rbf.py:8:1: F403 'from test_framework.util import *' used; unable to detect undefined names
  ./test/functional/feature_rbf.py:9:1: F403 'from test_framework.script import *' used; unable to detect undefined names
  ./test/functional/feature_rbf.py:10:1: F403 'from test_framework.mininode import *' used; unable to detect undefined names
  ./test/functional/feature_rbf.py:15:12: F405 bytes_to_hex_str may be undefined, or defined from star imports: test_framework.mininode, test_framework.script, test_framework.util
  ./test/functional/feature_rbf.py:17:58: F405 CScript may be undefined, or defined from star imports: test_framework.mininode, test_framework.script, test_framework.util
  ./test/functional/feature_rbf.py:25:13: F405 COIN may be undefined, or defined from star imports: test_framework.mininode, test_framework.script, test_framework.util
  ./test/functional/feature_rbf.py:26:31: F405 satoshi_round may be undefined, or defined from star imports: test_framework.mininode, test_framework.script, test_framework.util
  ./test/functional/feature_rbf.py:26:60: F405 COIN may be undefined, or defined from star imports: test_framework.mininode, test_framework.script, test_framework.util
  ./test/functional/feature_rbf.py:30:41: F405 satoshi_round may be undefined, or defined from star imports: test_framework.mininode, test_framework.script, test_framework.util
  ./test/functional/feature_rbf.py:30:68: F405 COIN may be undefined, or defined from star imports: test_framework.mininode, test_framework.script, test_framework.util
  $
  ```

  After this commit:

  ```
  $ contrib/devtools/lint-python.sh | head -10
  $
  ```

Tree-SHA512: 3f826d39cffb6438388e5efcb20a9622ff8238247e882d68f7b38609877421b2a8e10e9229575f8eb6a8fa42dec4256986692e92922c86171f750a0e887438d9
2021-07-06 20:29:33 +03:00

72 lines
2.9 KiB
Python
Executable File

#!/usr/bin/env python3
# Copyright (c) 2015-2020 The Dash Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
from test_framework.messages import COIN, COutPoint, CTransaction, CTxIn, CTxOut, ToHex
from test_framework.script import CScript, OP_CAT, OP_DROP, OP_TRUE
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import assert_equal, assert_raises_rpc_error, get_bip9_status, satoshi_round
'''
feature_dip0020_activation.py
This test checks activation of DIP0020 opcodes
'''
DISABLED_OPCODE_ERROR = "non-mandatory-script-verify-flag (Attempted to use a disabled opcode)"
class DIP0020ActivationTest(BitcoinTestFramework):
def set_test_params(self):
self.num_nodes = 1
def run_test(self):
self.node = self.nodes[0]
self.relayfee = satoshi_round(self.nodes[0].getnetworkinfo()["relayfee"])
# We should have some coins already
utxos = self.node.listunspent()
assert (len(utxos) > 0)
# Send some coins to a P2SH address constructed using disabled opcodes
utxo = utxos[len(utxos) - 1]
value = int(satoshi_round(utxo["amount"] - self.relayfee) * COIN)
tx = CTransaction()
tx.vin.append(CTxIn(COutPoint(int(utxo["txid"], 16), utxo["vout"])))
tx.vout.append(CTxOut(value, CScript([b'1', b'2', OP_CAT])))
tx_signed_hex = self.node.signrawtransactionwithwallet(ToHex(tx))["hex"]
txid = self.node.sendrawtransaction(tx_signed_hex)
# This tx should be completely valid, should be included in mempool and mined in the next block
assert (txid in set(self.node.getrawmempool()))
self.node.generate(1)
assert (txid not in set(self.node.getrawmempool()))
# Create spending tx
value = int(value - self.relayfee * COIN)
tx0 = CTransaction()
tx0.vin.append(CTxIn(COutPoint(int(txid, 16), 0)))
tx0.vout.append(CTxOut(value, CScript([OP_TRUE, OP_DROP] * 15 + [OP_TRUE])))
tx0.rehash()
tx0_hex = ToHex(tx0)
# This tx isn't valid yet
assert_equal(get_bip9_status(self.nodes[0], 'dip0020')['status'], 'locked_in')
assert_raises_rpc_error(-26, DISABLED_OPCODE_ERROR, self.node.sendrawtransaction, tx0_hex)
# Generate enough blocks to activate DIP0020 opcodes
self.node.generate(98)
assert_equal(get_bip9_status(self.nodes[0], 'dip0020')['status'], 'active')
# Still need 1 more block for mempool to accept new opcodes
assert_raises_rpc_error(-26, DISABLED_OPCODE_ERROR, self.node.sendrawtransaction, tx0_hex)
self.node.generate(1)
# Should be spendable now
tx0id = self.node.sendrawtransaction(tx0_hex)
assert (tx0id in set(self.node.getrawmempool()))
if __name__ == '__main__':
DIP0020ActivationTest().main()