[qa] Add setnetworkactive smoke test

test/functional/net.py

@@ -0,0 +1,54 @@
+#!/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.
+"""Test RPC calls related to net.
+
+Tests correspond to code in rpc/net.cpp.
+"""
+
+from decimal import Decimal
+import time
+
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.authproxy import JSONRPCException
+from test_framework.util import (
+    assert_equal,
+    start_nodes,
+    connect_nodes_bi,
+)
+
+
+class NetTest(BitcoinTestFramework):
+    def __init__(self):
+        super().__init__()
+        self.setup_clean_chain = True
+        self.num_nodes = 2
+
+    def setup_network(self):
+        self.nodes = start_nodes(self.num_nodes, self.options.tmpdir)
+        connect_nodes_bi(self.nodes, 0, 1)
+        self.is_network_split = False
+        self.sync_all()
+
+    def run_test(self):
+        assert_equal(self.nodes[0].getnetworkinfo()['networkactive'], True)
+        assert_equal(self.nodes[0].getnetworkinfo()['connections'], 2) # bilateral connection
+
+        self.nodes[0].setnetworkactive(False)
+        assert_equal(self.nodes[0].getnetworkinfo()['networkactive'], False)
+        timeout = 3
+        while self.nodes[0].getnetworkinfo()['connections'] != 0:
+            # Wait a bit for all sockets to close
+            assert timeout > 0, 'not all connections closed in time'
+            timeout -= 0.1
+            time.sleep(0.1)
+
+        self.nodes[0].setnetworkactive(True)
+        connect_nodes_bi(self.nodes, 0, 1)
+        assert_equal(self.nodes[0].getnetworkinfo()['networkactive'], True)
+        assert_equal(self.nodes[0].getnetworkinfo()['connections'], 2)
+
+
+if __name__ == '__main__':
+    NetTest().main()

test/functional/test_runner.py

@@ -70,6 +70,7 @@ BASE_SCRIPTS= [
     'decodescript.py',
     'blockchain.py',
     'disablewallet.py',
+    'net.py',
     'keypool.py',
     'p2p-mempool.py',
     'prioritise_transaction.py',