Test for signing messages

New rpc test for signing and verifying messages.

qa/pull-tester/rpc-tests.py

@@ -123,6 +123,7 @@ testScripts = [
     'abandonconflict.py',
     'p2p-versionbits-warning.py',
     'importprunedfunds.py',
+    'signmessages.py'
 ]
 if ENABLE_ZMQ:
     testScripts.append('zmq_test.py')

qa/rpc-tests/signmessages.py

@@ -0,0 +1,40 @@
+#!/usr/bin/env python2
+# 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.
+
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import *
+
+
+class SignMessagesTest(BitcoinTestFramework):
+    """Tests RPC commands for signing and verifying messages."""
+
+    def setup_chain(self):
+        print('Initializing test directory ' + self.options.tmpdir)
+        initialize_chain_clean(self.options.tmpdir, 1)
+
+    def setup_network(self, split=False):
+        self.nodes = start_nodes(1, self.options.tmpdir)
+        self.is_network_split = False
+
+    def run_test(self):
+        message = 'This is just a test message'
+
+        # Test the signing with a privkey
+        privKey = 'cUeKHd5orzT3mz8P9pxyREHfsWtVfgsfDjiZZBcjUBAaGk1BTj7N'
+        address = 'mpLQjfK79b7CCV4VMJWEWAj5Mpx8Up5zxB'
+        signature = self.nodes[0].signmessagewithprivkey(privKey, message)
+
+        # Verify the message
+        assert(self.nodes[0].verifymessage(address, signature, message))
+
+        # Test the signing with an address with wallet
+        address = self.nodes[0].getnewaddress()
+        signature = self.nodes[0].signmessage(address, message)
+
+        # Verify the message
+        assert(self.nodes[0].verifymessage(address, signature, message))
+
+if __name__ == '__main__':
+    SignMessagesTest().main()