1 files changed, 57 insertions, 0 deletions
diff --git a/test/functional/p2p_node_network_limited.py b/test/functional/p2p_node_network_limited.py
new file mode 100755
index 0000000000..70415e0168
--- /dev/null
+++ b/test/functional/p2p_node_network_limited.py
@@ -0,0 +1,57 @@
+#!/usr/bin/env python3
+# Copyright (c) 2017 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+"""Tests NODE_NETWORK_LIMITED.
+
+Tests that a node configured with -prune=550 signals NODE_NETWORK_LIMITED correctly
+and that it responds to getdata requests for blocks correctly:
+    - send a block within 288 + 2 of the tip
+    - disconnect peers who request blocks older than that."""
+from test_framework.messages import CInv, msg_getdata
+from test_framework.mininode import NODE_BLOOM, NODE_NETWORK_LIMITED, NODE_WITNESS, NetworkThread, P2PInterface
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import assert_equal
+
+class P2PIgnoreInv(P2PInterface):
+    def on_inv(self, message):
+        # The node will send us invs for other blocks. Ignore them.
+        pass
+
+    def send_getdata_for_block(self, blockhash):
+        getdata_request = msg_getdata()
+        getdata_request.inv.append(CInv(2, int(blockhash, 16)))
+        self.send_message(getdata_request)
+
+class NodeNetworkLimitedTest(BitcoinTestFramework):
+    def set_test_params(self):
+        self.setup_clean_chain = True
+        self.num_nodes = 1
+        self.extra_args = [['-prune=550']]
+
+    def run_test(self):
+        node = self.nodes[0].add_p2p_connection(P2PIgnoreInv())
+        NetworkThread().start()
+        node.wait_for_verack()
+
+        expected_services = NODE_BLOOM | NODE_WITNESS | NODE_NETWORK_LIMITED
+
+        self.log.info("Check that node has signalled expected services.")
+        assert_equal(node.nServices, expected_services)
+
+        self.log.info("Check that the localservices is as expected.")
+        assert_equal(int(self.nodes[0].getnetworkinfo()['localservices'], 16), expected_services)
+
+        self.log.info("Mine enough blocks to reach the NODE_NETWORK_LIMITED range.")
+        blocks = self.nodes[0].generate(292)
+
+        self.log.info("Make sure we can max retrive block at tip-288.")
+        node.send_getdata_for_block(blocks[1])  # last block in valid range
+        node.wait_for_block(int(blocks[1], 16), timeout=3)
+
+        self.log.info("Requesting block at height 2 (tip-289) must fail (ignored).")
+        node.send_getdata_for_block(blocks[0])  # first block outside of the 288+2 limit
+        node.wait_for_disconnect(5)
+
+if __name__ == '__main__':
+    NodeNetworkLimitedTest().main()