def run_test (self):
        tmpdir = self.options.tmpdir

        # Make sure can't switch off usehd after wallet creation
        self.stop_node(1)
        assert_start_raises_init_error(1, self.options.tmpdir, ['-usehd=0'], 'already existing HD wallet')
        self.nodes[1] = start_node(1, self.options.tmpdir, self.node_args[1])
        connect_nodes_bi(self.nodes, 0, 1)

        # Make sure we use hd, keep masterkeyid
        masterkeyid = self.nodes[1].getwalletinfo()['hdmasterkeyid']
        assert_equal(len(masterkeyid), 40)

        # Import a non-HD private key in the HD wallet
        non_hd_add = self.nodes[0].getnewaddress()
        self.nodes[1].importprivkey(self.nodes[0].dumpprivkey(non_hd_add))

        # This should be enough to keep the master key and the non-HD key 
        self.nodes[1].backupwallet(tmpdir + "/hd.bak")
        #self.nodes[1].dumpwallet(tmpdir + "/hd.dump")

        # Derive some HD addresses and remember the last
        # Also send funds to each add
        self.nodes[0].generate(101)
        hd_add = None
        num_hd_adds = 300
        for i in range(num_hd_adds):
            hd_add = self.nodes[1].getnewaddress()
            hd_info = self.nodes[1].validateaddress(hd_add)
            assert_equal(hd_info["hdkeypath"], "m/0'/0'/"+str(i+1)+"'")
            assert_equal(hd_info["hdmasterkeyid"], masterkeyid)
            self.nodes[0].sendtoaddress(hd_add, 1)
            self.nodes[0].generate(1)
        self.nodes[0].sendtoaddress(non_hd_add, 1)
        self.nodes[0].generate(1)

        self.sync_all()
        assert_equal(self.nodes[1].getbalance(), num_hd_adds + 1)

        self.log.info("Restore backup ...")
        self.stop_node(1)
        os.remove(self.options.tmpdir + "/node1/regtest/wallet.dat")
        shutil.copyfile(tmpdir + "/hd.bak", tmpdir + "/node1/regtest/wallet.dat")
        self.nodes[1] = start_node(1, self.options.tmpdir, self.node_args[1])
        #connect_nodes_bi(self.nodes, 0, 1)

        # Assert that derivation is deterministic
        hd_add_2 = None
        for _ in range(num_hd_adds):
            hd_add_2 = self.nodes[1].getnewaddress()
            hd_info_2 = self.nodes[1].validateaddress(hd_add_2)
            assert_equal(hd_info_2["hdkeypath"], "m/0'/0'/"+str(_+1)+"'")
            assert_equal(hd_info_2["hdmasterkeyid"], masterkeyid)
        assert_equal(hd_add, hd_add_2)

        # Needs rescan
        self.stop_node(1)
        self.nodes[1] = start_node(1, self.options.tmpdir, self.node_args[1] + ['-rescan'])
        #connect_nodes_bi(self.nodes, 0, 1)
        assert_equal(self.nodes[1].getbalance(), num_hd_adds + 1)

 def setup_network(self, split=False):
     self.nodes = start_nodes(3, self.options.tmpdir,
         extra_args=[NUPARAMS_ARGS] * 3)
     connect_nodes_bi(self.nodes,0,1)
     connect_nodes_bi(self.nodes,1,2)
     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)

        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)

        # test getaddednodeinfo
        assert_equal(self.nodes[0].getaddednodeinfo(), [])
        # add a node (node2) to node0
        ip_port = "127.0.0.1:{}".format(p2p_port(2))
        self.nodes[0].addnode(ip_port, 'add')
        # check that the node has indeed been added
        added_nodes = self.nodes[0].getaddednodeinfo(ip_port)
        assert_equal(len(added_nodes), 1)
        assert_equal(added_nodes[0]['addednode'], ip_port)
        # check that a non-existant node returns an error
        assert_raises_jsonrpc(-24, "Node has not been added",
                              self.nodes[0].getaddednodeinfo, '1.1.1.1')

 def restart_second_node(self, extra_args=[]):
     self.nodes[1].stop()
     bitcoind_processes[1].wait()
     self.nodes[1] = start_node(1, self.options.tmpdir, extra_args=['-regtestprotectcoinbase','-debug=zrpc'] + extra_args)
     self.nodes[1].setmocktime(starttime + 9000)
     connect_nodes_bi(self.nodes, 0, 1)
     self.sync_all()

    def run_test(self):
        self.log.info("test -blocknotify")
        block_count = 10
        blocks = self.nodes[1].generatetoaddress(block_count, self.nodes[1].getnewaddress() if self.is_wallet_compiled() else ADDRESS_BCRT1_UNSPENDABLE)

        # wait at most 10 seconds for expected number of files before reading the content
        wait_until(lambda: len(os.listdir(self.blocknotify_dir)) == block_count, timeout=10)

        # directory content should equal the generated blocks hashes
        assert_equal(sorted(blocks), sorted(os.listdir(self.blocknotify_dir)))

        if self.is_wallet_compiled():
            self.log.info("test -walletnotify")
            # wait at most 10 seconds for expected number of files before reading the content
            wait_until(lambda: len(os.listdir(self.walletnotify_dir)) == block_count, timeout=10)

            # directory content should equal the generated transaction hashes
            txids_rpc = list(map(lambda t: t['txid'], self.nodes[1].listtransactions("*", block_count)))
            assert_equal(sorted(txids_rpc), sorted(os.listdir(self.walletnotify_dir)))
            self.stop_node(1)
            for tx_file in os.listdir(self.walletnotify_dir):
                os.remove(os.path.join(self.walletnotify_dir, tx_file))

            self.log.info("test -walletnotify after rescan")
            # restart node to rescan to force wallet notifications
            self.start_node(1)
            connect_nodes_bi(self.nodes, 0, 1)

            wait_until(lambda: len(os.listdir(self.walletnotify_dir)) == block_count, timeout=10)

            # directory content should equal the generated transaction hashes
            txids_rpc = list(map(lambda t: t['txid'], self.nodes[1].listtransactions("*", block_count)))
            assert_equal(sorted(txids_rpc), sorted(os.listdir(self.walletnotify_dir)))

    def setup_network(self):
        self.setup_nodes()

        # Fully mesh-connect nodes for faster mempool sync
        for i, j in itertools.product(range(self.num_nodes), repeat=2):
            if i > j:
                connect_nodes_bi(self.nodes, i, j)
        self.sync_all()

 def setup_network(self, split=False):
     self.nodes = start_nodes(5, self.options.tmpdir )
     connect_nodes_bi(self.nodes,0,1)
     connect_nodes_bi(self.nodes,1,2)
     connect_nodes_bi(self.nodes,0,2)
     connect_nodes_bi(self.nodes,0,3)
     connect_nodes_bi(self.nodes,0,4)
     self.is_network_split=False
     self.sync_all()

 def setup_network(self):
     ''' Can't rely on syncing all the nodes when staking=1
     :param:
     :return:
     '''
     self.setup_nodes()
     for i in range(self.num_nodes - 1):
         for j in range(i+1, self.num_nodes):
             connect_nodes_bi(self.nodes, i, j)

    def run_test(self):
        ###########################
        # setban/listbanned tests #
        ###########################
        assert_equal(len(self.nodes[1].getpeerinfo()), 2)  # node1 should have 2 connections to node0 at this point
        self.nodes[1].setban("127.0.0.1", "add")
        assert wait_until(lambda: len(self.nodes[1].getpeerinfo()) == 0, timeout=10)
        assert_equal(len(self.nodes[1].getpeerinfo()), 0)  # all nodes must be disconnected at this point
        assert_equal(len(self.nodes[1].listbanned()), 1)
        self.nodes[1].clearbanned()
        assert_equal(len(self.nodes[1].listbanned()), 0)
        self.nodes[1].setban("127.0.0.0/24", "add")
        assert_equal(len(self.nodes[1].listbanned()), 1)
        # This will throw an exception because 127.0.0.1 is within range 127.0.0.0/24
        assert_raises_jsonrpc(-23, "IP/Subnet already banned", self.nodes[1].setban, "127.0.0.1", "add")
        # This will throw an exception because 127.0.0.1/42 is not a real subnet
        assert_raises_jsonrpc(-30, "Error: Invalid IP/Subnet", self.nodes[1].setban, "127.0.0.1/42", "add")
        assert_equal(len(self.nodes[1].listbanned()), 1)  # still only one banned ip because 127.0.0.1 is within the range of 127.0.0.0/24
        # This will throw an exception because 127.0.0.1 was not added above
        assert_raises_jsonrpc(-30, "Error: Unban failed", self.nodes[1].setban, "127.0.0.1", "remove")
        assert_equal(len(self.nodes[1].listbanned()), 1)
        self.nodes[1].setban("127.0.0.0/24", "remove")
        assert_equal(len(self.nodes[1].listbanned()), 0)
        self.nodes[1].clearbanned()
        assert_equal(len(self.nodes[1].listbanned()), 0)

        # test persisted banlist
        self.nodes[1].setban("127.0.0.0/32", "add")
        self.nodes[1].setban("127.0.0.0/24", "add")
        self.nodes[1].setban("192.168.0.1", "add", 1)  # ban for 1 seconds
        self.nodes[1].setban("2001:4d48:ac57:400:cacf:e9ff:fe1d:9c63/19", "add", 1000)  # ban for 1000 seconds
        listBeforeShutdown = self.nodes[1].listbanned()
        assert_equal("192.168.0.1/32", listBeforeShutdown[2]['address'])
        assert wait_until(lambda: len(self.nodes[1].listbanned()) == 3, timeout=10)

        stop_node(self.nodes[1], 1)

        self.nodes[1] = start_node(1, self.options.tmpdir)
        listAfterShutdown = self.nodes[1].listbanned()
        assert_equal("127.0.0.0/24", listAfterShutdown[0]['address'])
        assert_equal("127.0.0.0/32", listAfterShutdown[1]['address'])
        assert_equal("/19" in listAfterShutdown[2]['address'], True)

        # Clear ban lists
        self.nodes[1].clearbanned()
        connect_nodes_bi(self.nodes, 0, 1)

        ###########################
        # RPC disconnectnode test #
        ###########################
        address1 = self.nodes[0].getpeerinfo()[0]['addr']
        self.nodes[0].disconnectnode(address=address1)
        assert wait_until(lambda: len(self.nodes[0].getpeerinfo()) == 1, timeout=10)
        assert not [node for node in self.nodes[0].getpeerinfo() if node['addr'] == address1]

        connect_nodes_bi(self.nodes, 0, 1)  # reconnect the node
        assert [node for node in self.nodes[0].getpeerinfo() if node['addr'] == address1]

 def setup_network(self, split=False):
     self.nodes = start_nodes(3, self.options.tmpdir,
         extra_args=[[
             '-nuparams=5ba81b19:100', # Overwinter
             '-nuparams=76b809bb:201', # Sapling
         ]] * 3)
     connect_nodes_bi(self.nodes,0,1)
     connect_nodes_bi(self.nodes,1,2)
     self.is_network_split=False
     self.sync_all()

 def mine_chain(self):
     self.log.info('Create some old blocks')
     for t in range(TIME_GENESIS_BLOCK, TIME_GENESIS_BLOCK + 200 * 600, 600):
         self.nodes[0].setmocktime(t)
         self.nodes[0].generate(1)
     mining_info = self.nodes[0].getmininginfo()
     assert_equal(mining_info['blocks'], 200)
     assert_equal(mining_info['currentblocktx'], 0)
     assert_equal(mining_info['currentblockweight'], 4000)
     self.restart_node(0)
     connect_nodes_bi(self.nodes, 0, 1)

    def run_test(self):
        self.log.info("test -blocknotify")
        block_count = 10
        blocks = self.nodes[1].generate(block_count)

        # wait at most 10 seconds for expected file size before reading the content
        wait_until(lambda: os.path.isfile(self.block_filename) and os.stat(self.block_filename).st_size >= (block_count * 65), timeout=10)

        # file content should equal the generated blocks hashes
        with open(self.block_filename, 'r', encoding="utf-8") as f:
            assert_equal(sorted(blocks), sorted(l.strip() for l in f.read().splitlines()))

        self.log.info("test -walletnotify")
        # wait at most 10 seconds for expected file size before reading the content
        wait_until(lambda: os.path.isfile(self.tx_filename) and os.stat(self.tx_filename).st_size >= (block_count * 65), timeout=10)

        # file content should equal the generated transaction hashes
        txids_rpc = list(map(lambda t: t['txid'], self.nodes[1].listtransactions("*", block_count)))
        with open(self.tx_filename, 'r', encoding="ascii") as f:
            assert_equal(sorted(txids_rpc), sorted(l.strip() for l in f.read().splitlines()))
        os.remove(self.tx_filename)

        self.log.info("test -walletnotify after rescan")
        # restart node to rescan to force wallet notifications
        self.restart_node(1)
        connect_nodes_bi(self.nodes, 0, 1)

        wait_until(lambda: os.path.isfile(self.tx_filename) and os.stat(self.tx_filename).st_size >= (block_count * 65), timeout=10)

        # file content should equal the generated transaction hashes
        txids_rpc = list(map(lambda t: t['txid'], self.nodes[1].listtransactions("*", block_count)))
        with open(self.tx_filename, 'r', encoding="ascii") as f:
            assert_equal(sorted(txids_rpc), sorted(l.strip() for l in f.read().splitlines()))

        # Mine another 41 up-version blocks. -alertnotify should trigger on the 51st.
        self.log.info("test -alertnotify")
        self.nodes[1].generate(41)
        self.sync_all()

        # Give bitcoind 10 seconds to write the alert notification
        wait_until(lambda: os.path.isfile(self.alert_filename) and os.path.getsize(self.alert_filename), timeout=10)

        with open(self.alert_filename, 'r', encoding='utf8') as f:
            alert_text = f.read()

        # Mine more up-version blocks, should not get more alerts:
        self.nodes[1].generate(2)
        self.sync_all()

        with open(self.alert_filename, 'r', encoding='utf8') as f:
            alert_text2 = f.read()

        self.log.info("-alertnotify should not continue notifying for more unknown version blocks")
        assert_equal(alert_text, alert_text2)

    def _test_getnetworkinginfo(self):
        assert_equal(self.nodes[0].getnetworkinfo()['networkactive'], True)
        assert_equal(self.nodes[0].getnetworkinfo()['connections'], 2)

        self.nodes[0].setnetworkactive(False)
        assert_equal(self.nodes[0].getnetworkinfo()['networkactive'], False)
        # Wait a bit for all sockets to close
        wait_until(lambda: self.nodes[0].getnetworkinfo()['connections'] == 0, timeout=3)

        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)

    def run_test(self):
        assert(self.nodes[0].getblockcount() == 200)
        assert(self.nodes[2].getblockcount() == 200)

        self.split_network()

        print "Test the maximum-allowed reorg:"
        print "Mine 99 blocks on Node 0"
        self.nodes[0].generate(99)
        assert(self.nodes[0].getblockcount() == 299)
        assert(self.nodes[2].getblockcount() == 200)

        print "Mine competing 100 blocks on Node 2"
        self.nodes[2].generate(100)
        assert(self.nodes[0].getblockcount() == 299)
        assert(self.nodes[2].getblockcount() == 300)

        print "Connect nodes to force a reorg"
        connect_nodes_bi(self.nodes, 0, 2)
        self.is_network_split = False
        sync_blocks(self.nodes)

        print "Check Node 0 is still running and on the correct chain"
        assert(self.nodes[0].getblockcount() == 300)

        self.split_network()

        print "Test the minimum-rejected reorg:"
        print "Mine 100 blocks on Node 0"
        self.nodes[0].generate(100)
        assert(self.nodes[0].getblockcount() == 400)
        assert(self.nodes[2].getblockcount() == 300)

        print "Mine competing 101 blocks on Node 2"
        self.nodes[2].generate(101)
        assert(self.nodes[0].getblockcount() == 400)
        assert(self.nodes[2].getblockcount() == 401)

        print "Sync nodes to force a reorg"
        connect_nodes_bi(self.nodes, 0, 2)
        self.is_network_split = False
        # sync_blocks uses RPC calls to wait for nodes to be synced, so don't
        # call it here, because it will have a non-specific connection error
        # when Node 0 stops. Instead, we explicitly check for the process itself
        # to stop.

        print "Check Node 0 is no longer running"
        assert(check_stopped(0))

        # Dummy stop to enable the test to tear down
        self.nodes[0].stop = lambda: True

    def run_test(self):
        self.log.info("test -blocknotify")
        block_count = 10
        blocks = self.nodes[1].generatetoaddress(block_count, self.nodes[1].getnewaddress() if self.is_wallet_compiled() else ADDRESS_BCRT1_UNSPENDABLE)

        # wait at most 10 seconds for expected number of files before reading the content
        wait_until(lambda: len(os.listdir(self.blocknotify_dir)) == block_count, timeout=10)

        # directory content should equal the generated blocks hashes
        assert_equal(sorted(blocks), sorted(os.listdir(self.blocknotify_dir)))

        if self.is_wallet_compiled():
            self.log.info("test -walletnotify")
            # wait at most 10 seconds for expected number of files before reading the content
            wait_until(lambda: len(os.listdir(self.walletnotify_dir)) == block_count, timeout=10)

            # directory content should equal the generated transaction hashes
            txids_rpc = list(map(lambda t: t['txid'], self.nodes[1].listtransactions("*", block_count)))
            assert_equal(sorted(txids_rpc), sorted(os.listdir(self.walletnotify_dir)))
            self.stop_node(1)
            for tx_file in os.listdir(self.walletnotify_dir):
                os.remove(os.path.join(self.walletnotify_dir, tx_file))

            self.log.info("test -walletnotify after rescan")
            # restart node to rescan to force wallet notifications
            self.start_node(1)
            connect_nodes_bi(self.nodes, 0, 1)

            wait_until(lambda: len(os.listdir(self.walletnotify_dir)) == block_count, timeout=10)

            # directory content should equal the generated transaction hashes
            txids_rpc = list(map(lambda t: t['txid'], self.nodes[1].listtransactions("*", block_count)))
            assert_equal(sorted(txids_rpc), sorted(os.listdir(self.walletnotify_dir)))

        # Mine another 41 up-version blocks. -alertnotify should trigger on the 51st.
        self.log.info("test -alertnotify")
        self.nodes[1].generatetoaddress(41, ADDRESS_BCRT1_UNSPENDABLE)
        self.sync_all()

        # Give bitcoind 10 seconds to write the alert notification
        wait_until(lambda: len(os.listdir(self.alertnotify_dir)), timeout=10)

        for notify_file in os.listdir(self.alertnotify_dir):
            os.remove(os.path.join(self.alertnotify_dir, notify_file))

        # Mine more up-version blocks, should not get more alerts:
        self.nodes[1].generatetoaddress(2, ADDRESS_BCRT1_UNSPENDABLE)
        self.sync_all()

        self.log.info("-alertnotify should not continue notifying for more unknown version blocks")
        assert_equal(len(os.listdir(self.alertnotify_dir)), 0)

    def setup_network(self):
        self.setup_nodes()

        connect_nodes_bi(self.nodes, 0, 1)
        connect_nodes_bi(self.nodes, 1, 2)
        connect_nodes_bi(self.nodes, 0, 2)
        connect_nodes_bi(self.nodes, 0, 3)

    def setup_network(self, split=False):
        self.setup_nodes()

        connect_nodes_bi(self.nodes, 0, 1)
        connect_nodes_bi(self.nodes, 1, 2)
        connect_nodes_bi(self.nodes, 0, 2)
        connect_nodes_bi(self.nodes, 0, 3)

 def setup_network(self, split=False):
     self.nodes = start_nodes(4, self.options.tmpdir, extra_args=[['-regtestprotectcoinbase', '-debug=zrpcunsafe']] * 4 )
     connect_nodes_bi(self.nodes,0,1)
     connect_nodes_bi(self.nodes,1,2)
     connect_nodes_bi(self.nodes,0,2)
     connect_nodes_bi(self.nodes,0,3)
     self.is_network_split=False
     self.sync_all()

 def setup_network(self, split=False):
     self.nodes = start_nodes(4, self.options.tmpdir, extra_args=[["-nuparams=5ba81b19:200", "-debug=zrpcunsafe", "-txindex"]] * 4 )
     connect_nodes_bi(self.nodes,0,1)
     connect_nodes_bi(self.nodes,1,2)
     connect_nodes_bi(self.nodes,0,2)
     connect_nodes_bi(self.nodes,0,3)
     self.is_network_split=False
     self.sync_all()

    def _test_getnetworkinginfo(self):
        assert_equal(self.nodes[0].getnetworkinfo()['networkactive'], True)
        assert_equal(self.nodes[0].getnetworkinfo()['connections'], 2)

        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)