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100 lines
3.9 KiB
100 lines
3.9 KiB
#!/usr/bin/env python2 |
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# Copyright (c) 2015 The Bitcoin Core developers |
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# Distributed under the MIT/X11 software license, see the accompanying |
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# file COPYING or http://www.opensource.org/licenses/mit-license.php. |
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# |
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from test_framework.mininode import * |
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from test_framework.test_framework import BitcoinTestFramework |
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from test_framework.util import * |
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import logging |
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''' |
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In this test we connect to one node over p2p, send it numerous inv's, and |
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compare the resulting number of getdata requests to a max allowed value. We |
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test for exceeding 128 blocks in flight, which was the limit an 0.9 client will |
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reach. [0.10 clients shouldn't request more than 16 from a single peer.] |
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''' |
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MAX_REQUESTS = 128 |
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class TestManager(NodeConnCB): |
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# set up NodeConnCB callbacks, overriding base class |
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def on_getdata(self, conn, message): |
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self.log.debug("got getdata %s" % repr(message)) |
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# Log the requests |
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for inv in message.inv: |
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if inv.hash not in self.blockReqCounts: |
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self.blockReqCounts[inv.hash] = 0 |
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self.blockReqCounts[inv.hash] += 1 |
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def on_close(self, conn): |
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if not self.disconnectOkay: |
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raise EarlyDisconnectError(0) |
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def __init__(self): |
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NodeConnCB.__init__(self) |
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self.log = logging.getLogger("BlockRelayTest") |
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def add_new_connection(self, connection): |
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self.connection = connection |
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self.blockReqCounts = {} |
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self.disconnectOkay = False |
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def run(self): |
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try: |
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fail = False |
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self.connection.rpc.generate(1) # Leave IBD |
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numBlocksToGenerate = [ 8, 16, 128, 1024 ] |
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for count in range(len(numBlocksToGenerate)): |
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current_invs = [] |
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for i in range(numBlocksToGenerate[count]): |
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current_invs.append(CInv(2, random.randrange(0, 1<<256))) |
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if len(current_invs) >= 50000: |
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self.connection.send_message(msg_inv(current_invs)) |
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current_invs = [] |
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if len(current_invs) > 0: |
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self.connection.send_message(msg_inv(current_invs)) |
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# Wait and see how many blocks were requested |
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time.sleep(2) |
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total_requests = 0 |
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with mininode_lock: |
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for key in self.blockReqCounts: |
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total_requests += self.blockReqCounts[key] |
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if self.blockReqCounts[key] > 1: |
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raise AssertionError("Error, test failed: block %064x requested more than once" % key) |
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if total_requests > MAX_REQUESTS: |
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raise AssertionError("Error, too many blocks (%d) requested" % total_requests) |
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print "Round %d: success (total requests: %d)" % (count, total_requests) |
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except AssertionError as e: |
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print "TEST FAILED: ", e.args |
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self.disconnectOkay = True |
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self.connection.disconnect_node() |
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class MaxBlocksInFlightTest(BitcoinTestFramework): |
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def add_options(self, parser): |
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parser.add_option("--testbinary", dest="testbinary", |
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default=os.getenv("BITCOIND", "bitcoind"), |
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help="Binary to test max block requests behavior") |
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def setup_chain(self): |
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print "Initializing test directory "+self.options.tmpdir |
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initialize_chain_clean(self.options.tmpdir, 1) |
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def setup_network(self): |
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self.nodes = start_nodes(1, self.options.tmpdir, |
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extra_args=[['-debug', '-whitelist=127.0.0.1']], |
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binary=[self.options.testbinary]) |
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def run_test(self): |
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test = TestManager() |
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test.add_new_connection(NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], test)) |
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NetworkThread().start() # Start up network handling in another thread |
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test.run() |
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if __name__ == '__main__': |
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MaxBlocksInFlightTest().main()
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