![nathan@z.cash](/assets/img/avatar_default.png)
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#!/usr/bin/env python2 |
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# Copyright (c) 2017 The Zcash developers |
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# Distributed under the MIT software license, see the accompanying |
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# file COPYING or http://www.opensource.org/licenses/mit-license.php. |
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from time import sleep |
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from decimal import Decimal |
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from test_framework.test_framework import BitcoinTestFramework |
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from test_framework.util import assert_equal, assert_greater_than, sync_blocks |
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import logging |
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logging.basicConfig(format='%(levelname)s:%(message)s', level=logging.INFO) |
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class KeyImportExportTest (BitcoinTestFramework): |
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def run_test(self): |
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[alice, bob, charlie, miner] = self.nodes |
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def wait_until_miner_sees(txid): |
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attempts = 123 |
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delay = 0.5 |
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for _ in range(attempts): |
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try: |
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miner.getrawtransaction(txid) |
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except Exception: |
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logging.debug( |
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'txid %r not yet seen by miner; sleep %r', |
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txid, |
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delay, |
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) |
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sleep(delay) |
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else: |
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return |
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raise Exception( |
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'miner failed to see txid {!r} after {!r} attempts...'.format( |
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txid, |
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attempts, |
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), |
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) |
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def alice_to_bob(amount): |
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txid = alice.sendtoaddress(addr, Decimal(amount)) |
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wait_until_miner_sees(txid) |
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miner.generate(1) |
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sync_blocks(self.nodes) |
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def verify_utxos(node, amounts): |
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utxos = node.listunspent(1, 10**9, [addr]) |
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def cmp_confirmations_high_to_low(a, b): |
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return cmp(b["confirmations"], a["confirmations"]) |
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utxos.sort(cmp_confirmations_high_to_low) |
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try: |
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assert_equal(amounts, [utxo["amount"] for utxo in utxos]) |
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except AssertionError: |
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logging.error( |
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'Expected amounts: %r; utxos: %r', |
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amounts, utxos) |
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raise |
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# The first address already mutated by the startup process, ignore it: |
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# BUG: Why is this necessary? |
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bob.getnewaddress() |
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# Now get a pristine address for receiving transfers: |
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addr = bob.getnewaddress() |
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verify_utxos(bob, []) |
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# the amounts of each txn embodied which generates a single UTXO: |
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amounts = map(Decimal, ['2.3', '3.7', '0.1', '0.5', '1.0', '0.19']) |
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# Internal test consistency assertion: |
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assert_greater_than( |
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alice.getbalance(), |
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reduce(Decimal.__add__, amounts)) |
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logging.info("Sending pre-export txns...") |
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for amount in amounts[0:2]: |
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alice_to_bob(amount) |
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logging.info("Exporting privkey from bob...") |
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privkey = bob.dumpprivkey(addr) |
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logging.info("Sending post-export txns...") |
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for amount in amounts[2:4]: |
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alice_to_bob(amount) |
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verify_utxos(bob, amounts[:4]) |
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logging.info("Importing privkey into charlie...") |
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charlie.importprivkey(privkey, '', True) |
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# importprivkey should have rescanned, so this should pass: |
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verify_utxos(charlie, amounts[:4]) |
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logging.info("Sending post-import txns...") |
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for amount in amounts[4:]: |
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alice_to_bob(amount) |
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verify_utxos(bob, amounts) |
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verify_utxos(charlie, amounts) |
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if __name__ == '__main__': |
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KeyImportExportTest().main() |
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