1 files changed, 95 insertions, 0 deletions
diff --git a/test/functional/wallet-hd.py b/test/functional/wallet-hd.py
new file mode 100755
index 0000000000..c40662dc3d
--- /dev/null
+++ b/test/functional/wallet-hd.py
@@ -0,0 +1,95 @@
+#!/usr/bin/env python3
+# Copyright (c) 2016 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 Hierarchical Deterministic wallet function."""
+
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import (
+    start_nodes,
+    start_node,
+    assert_equal,
+    connect_nodes_bi,
+    assert_start_raises_init_error
+)
+import os
+import shutil
+
+
+class WalletHDTest(BitcoinTestFramework):
+
+    def __init__(self):
+        super().__init__()
+        self.setup_clean_chain = True
+        self.num_nodes = 2
+        self.node_args = [['-usehd=0'], ['-usehd=1', '-keypool=0']]
+
+    def setup_network(self):
+        self.nodes = start_nodes(self.num_nodes, self.options.tmpdir, self.node_args)
+        self.is_network_split = False
+        connect_nodes_bi(self.nodes, 0, 1)
+
+    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)
+
+
+if __name__ == '__main__':
+    WalletHDTest().main ()