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| 1 | +#!/usr/bin/env python2 |
| 2 | +# |
| 3 | +# Distributed under the MIT/X11 software license, see the accompanying |
| 4 | +# file COPYING or http://www.opensource.org/licenses/mit-license.php. |
| 5 | +# |
| 6 | + |
| 7 | +from mininode import * |
| 8 | +from test_framework import BitcoinTestFramework |
| 9 | +from util import * |
| 10 | +import logging |
| 11 | + |
| 12 | +''' |
| 13 | +In this test we connect to one node over p2p, send it numerous inv's, and |
| 14 | +compare the resulting number of getdata requests to a max allowed value. We |
| 15 | +test for exceeding 128 blocks in flight, which was the limit an 0.9 client will |
| 16 | +reach. [0.10 clients shouldn't request more than 16 from a single peer.] |
| 17 | +''' |
| 18 | +MAX_REQUESTS = 128 |
| 19 | + |
| 20 | +class TestManager(NodeConnCB): |
| 21 | + # set up NodeConnCB callbacks, overriding base class |
| 22 | + def on_getdata(self, conn, message): |
| 23 | + self.log.debug("got getdata %s" % repr(message)) |
| 24 | + # Log the requests |
| 25 | + for inv in message.inv: |
| 26 | + if inv.hash not in self.blockReqCounts: |
| 27 | + self.blockReqCounts[inv.hash] = 0 |
| 28 | + self.blockReqCounts[inv.hash] += 1 |
| 29 | + |
| 30 | + def on_close(self, conn): |
| 31 | + if not self.disconnectOkay: |
| 32 | + raise EarlyDisconnectError(0) |
| 33 | + |
| 34 | + def __init__(self): |
| 35 | + NodeConnCB.__init__(self) |
| 36 | + self.log = logging.getLogger("BlockRelayTest") |
| 37 | + self.create_callback_map() |
| 38 | + |
| 39 | + def add_new_connection(self, connection): |
| 40 | + self.connection = connection |
| 41 | + self.blockReqCounts = {} |
| 42 | + self.disconnectOkay = False |
| 43 | + |
| 44 | + def run(self): |
| 45 | + try: |
| 46 | + fail = False |
| 47 | + self.connection.rpc.generate(1) # Leave IBD |
| 48 | + |
| 49 | + numBlocksToGenerate = [ 8, 16, 128, 1024 ] |
| 50 | + for count in range(len(numBlocksToGenerate)): |
| 51 | + current_invs = [] |
| 52 | + for i in range(numBlocksToGenerate[count]): |
| 53 | + current_invs.append(CInv(2, random.randrange(0, 1<<256))) |
| 54 | + if len(current_invs) >= 50000: |
| 55 | + self.connection.send_message(msg_inv(current_invs)) |
| 56 | + current_invs = [] |
| 57 | + if len(current_invs) > 0: |
| 58 | + self.connection.send_message(msg_inv(current_invs)) |
| 59 | + |
| 60 | + # Wait and see how many blocks were requested |
| 61 | + time.sleep(2) |
| 62 | + |
| 63 | + total_requests = 0 |
| 64 | + for key in self.blockReqCounts: |
| 65 | + total_requests += self.blockReqCounts[key] |
| 66 | + if self.blockReqCounts[key] > 1: |
| 67 | + raise AssertionError("Error, test failed: block %064x requested more than once" % key) |
| 68 | + if total_requests > MAX_REQUESTS: |
| 69 | + raise AssertionError("Error, too many blocks (%d) requested" % total_requests) |
| 70 | + print "Round %d: success (total requests: %d)" % (count, total_requests) |
| 71 | + except AssertionError as e: |
| 72 | + print "TEST FAILED: ", e.args |
| 73 | + |
| 74 | + self.disconnectOkay = True |
| 75 | + self.connection.disconnect_node() |
| 76 | + |
| 77 | + |
| 78 | +class MaxBlocksInFlightTest(BitcoinTestFramework): |
| 79 | + def add_options(self, parser): |
| 80 | + parser.add_option("--testbinary", dest="testbinary", default="bitcoind", |
| 81 | + help="Binary to test max block requests behavior") |
| 82 | + |
| 83 | + def setup_chain(self): |
| 84 | + print "Initializing test directory "+self.options.tmpdir |
| 85 | + initialize_chain_clean(self.options.tmpdir, 1) |
| 86 | + |
| 87 | + def setup_network(self): |
| 88 | + self.nodes = start_nodes(1, self.options.tmpdir, |
| 89 | + extra_args=[['-debug', '-whitelist=127.0.0.1']], |
| 90 | + binary=[self.options.testbinary]) |
| 91 | + |
| 92 | + def run_test(self): |
| 93 | + test = TestManager() |
| 94 | + test.add_new_connection(NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], test)) |
| 95 | + NetworkThread().start() # Start up network handling in another thread |
| 96 | + test.run() |
| 97 | + |
| 98 | +if __name__ == '__main__': |
| 99 | + MaxBlocksInFlightTest().main() |
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