1 files changed, 84 insertions, 0 deletions
diff --git a/test/functional/wallet_keypool.py b/test/functional/wallet_keypool.py
new file mode 100755
index 0000000000..9825e4d894
--- /dev/null
+++ b/test/functional/wallet_keypool.py
@@ -0,0 +1,84 @@
+#!/usr/bin/env python3
+# Copyright (c) 2014-2017 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 the wallet keypool and interaction with wallet encryption/locking."""
+
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import *
+
+class KeyPoolTest(BitcoinTestFramework):
+    def set_test_params(self):
+        self.num_nodes = 1
+
+    def run_test(self):
+        nodes = self.nodes
+        addr_before_encrypting = nodes[0].getnewaddress()
+        addr_before_encrypting_data = nodes[0].getaddressinfo(addr_before_encrypting)
+        wallet_info_old = nodes[0].getwalletinfo()
+        assert(addr_before_encrypting_data['hdmasterkeyid'] == wallet_info_old['hdmasterkeyid'])
+        
+        # Encrypt wallet and wait to terminate
+        nodes[0].node_encrypt_wallet('test')
+        # Restart node 0
+        self.start_node(0)
+        # Keep creating keys
+        addr = nodes[0].getnewaddress()
+        addr_data = nodes[0].getaddressinfo(addr)
+        wallet_info = nodes[0].getwalletinfo()
+        assert(addr_before_encrypting_data['hdmasterkeyid'] != wallet_info['hdmasterkeyid'])
+        assert(addr_data['hdmasterkeyid'] == wallet_info['hdmasterkeyid'])
+        assert_raises_rpc_error(-12, "Error: Keypool ran out, please call keypoolrefill first", nodes[0].getnewaddress)
+
+        # put six (plus 2) new keys in the keypool (100% external-, +100% internal-keys, 1 in min)
+        nodes[0].walletpassphrase('test', 12000)
+        nodes[0].keypoolrefill(6)
+        nodes[0].walletlock()
+        wi = nodes[0].getwalletinfo()
+        assert_equal(wi['keypoolsize_hd_internal'], 6)
+        assert_equal(wi['keypoolsize'], 6)
+
+        # drain the internal keys
+        nodes[0].getrawchangeaddress()
+        nodes[0].getrawchangeaddress()
+        nodes[0].getrawchangeaddress()
+        nodes[0].getrawchangeaddress()
+        nodes[0].getrawchangeaddress()
+        nodes[0].getrawchangeaddress()
+        addr = set()
+        # the next one should fail
+        assert_raises_rpc_error(-12, "Keypool ran out", nodes[0].getrawchangeaddress)
+
+        # drain the external keys
+        addr.add(nodes[0].getnewaddress())
+        addr.add(nodes[0].getnewaddress())
+        addr.add(nodes[0].getnewaddress())
+        addr.add(nodes[0].getnewaddress())
+        addr.add(nodes[0].getnewaddress())
+        addr.add(nodes[0].getnewaddress())
+        assert(len(addr) == 6)
+        # the next one should fail
+        assert_raises_rpc_error(-12, "Error: Keypool ran out, please call keypoolrefill first", nodes[0].getnewaddress)
+
+        # refill keypool with three new addresses
+        nodes[0].walletpassphrase('test', 1)
+        nodes[0].keypoolrefill(3)
+
+        # test walletpassphrase timeout
+        time.sleep(1.1)
+        assert_equal(nodes[0].getwalletinfo()["unlocked_until"], 0)
+
+        # drain them by mining
+        nodes[0].generate(1)
+        nodes[0].generate(1)
+        nodes[0].generate(1)
+        assert_raises_rpc_error(-12, "Keypool ran out", nodes[0].generate, 1)
+
+        nodes[0].walletpassphrase('test', 100)
+        nodes[0].keypoolrefill(100)
+        wi = nodes[0].getwalletinfo()
+        assert_equal(wi['keypoolsize_hd_internal'], 100)
+        assert_equal(wi['keypoolsize'], 100)
+
+if __name__ == '__main__':
+    KeyPoolTest().main()