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81 lines
3.5 KiB
81 lines
3.5 KiB
#!/usr/bin/env python3 |
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# Copyright (c) 2017 The Bitcoin Core 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 test_framework.test_framework import BitcoinTestFramework |
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from test_framework.util import * |
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from test_framework.mininode import * |
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class BaseNode(P2PInterface): |
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nServices = 0 |
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firstAddrnServices = 0 |
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def on_version(self, message): |
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self.nServices = message.nServices |
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class NodeNetworkLimitedTest(BitcoinTestFramework): |
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def set_test_params(self): |
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self.setup_clean_chain = True |
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self.num_nodes = 1 |
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self.extra_args = [['-prune=550']] |
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def getSignaledServiceFlags(self): |
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node = self.nodes[0].add_p2p_connection(BaseNode()) |
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NetworkThread().start() |
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node.wait_for_verack() |
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services = node.nServices |
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self.nodes[0].disconnect_p2ps() |
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node.wait_for_disconnect() |
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return services |
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def tryGetBlockViaGetData(self, blockhash, must_disconnect): |
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node = self.nodes[0].add_p2p_connection(BaseNode()) |
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NetworkThread().start() |
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node.wait_for_verack() |
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node.send_message(msg_verack()) |
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getdata_request = msg_getdata() |
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getdata_request.inv.append(CInv(2, int(blockhash, 16))) |
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node.send_message(getdata_request) |
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if (must_disconnect): |
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#ensure we get disconnected |
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node.wait_for_disconnect(5) |
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else: |
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# check if the peer sends us the requested block |
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node.wait_for_block(int(blockhash, 16), 3) |
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self.nodes[0].disconnect_p2ps() |
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node.wait_for_disconnect() |
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def run_test(self): |
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#NODE_BLOOM & NODE_WITNESS & NODE_NETWORK_LIMITED must now be signaled |
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assert_equal(self.getSignaledServiceFlags(), 1036) #1036 == 0x40C == 0100 0000 1100 |
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# | || |
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# | |^--- NODE_BLOOM |
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# | ^---- NODE_WITNESS |
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# ^-- NODE_NETWORK_LIMITED |
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#now mine some blocks over the NODE_NETWORK_LIMITED + 2(racy buffer ext.) target |
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firstblock = self.nodes[0].generate(1)[0] |
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blocks = self.nodes[0].generate(292) |
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blockWithinLimitedRange = blocks[-1] |
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#make sure we can max retrive block at tip-288 |
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#requesting block at height 2 (tip-289) must fail (ignored) |
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self.tryGetBlockViaGetData(firstblock, True) #first block must lead to disconnect |
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self.tryGetBlockViaGetData(blocks[1], False) #last block in valid range |
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self.tryGetBlockViaGetData(blocks[0], True) #first block outside of the 288+2 limit |
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#NODE_NETWORK_LIMITED must still be signaled after restart |
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self.restart_node(0) |
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assert_equal(self.getSignaledServiceFlags(), 1036) |
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#test the RPC service flags |
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assert_equal(self.nodes[0].getnetworkinfo()['localservices'], "000000000000040c") |
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# getdata a block above the NODE_NETWORK_LIMITED threshold must be possible |
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self.tryGetBlockViaGetData(blockWithinLimitedRange, False) |
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# getdata a block below the NODE_NETWORK_LIMITED threshold must be ignored |
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self.tryGetBlockViaGetData(firstblock, True) |
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if __name__ == '__main__': |
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NodeNetworkLimitedTest().main()
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