add functional test for coinbase connection to db

Author: instagibbs

test/functional/feature_connect_coinbase.py

@@ -0,0 +1,44 @@
+#!/usr/bin/env python3
+# Copyright (c) 2014-2018 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 connecting genesis coinbase"""
+
+from binascii import b2a_hex
+
+from test_framework.blocktools import create_coinbase
+from test_framework.messages import CBlock
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import assert_equal, assert_raises_rpc_error
+
+class ConnectGenesisTest(BitcoinTestFramework):
+    def set_test_params(self):
+        self.num_nodes = 2
+        self.setup_clean_chain = True
+        # First node doesn't connect coinbase output to db, second does
+        self.extra_args = [["-con_connect_coinbase=0"], ["-con_connect_coinbase=1"]]
+
+    def run_test(self):
+        # Same genesis block
+        assert_equal(self.nodes[0].getblockhash(0), self.nodes[1].getblockhash(0))
+
+        # Different UTXO set
+        node0_info = self.nodes[0].gettxoutsetinfo()
+        node1_info = self.nodes[1].gettxoutsetinfo()
+        print(node0_info)
+        print(node1_info)
+        assert_equal(node0_info["txouts"], 0)
+        assert_equal(node0_info["transactions"], 0)
+        assert_equal(node0_info["total_amount"], 0)
+        assert_equal(node1_info["txouts"], 1)
+        assert_equal(node1_info["transactions"], 1)
+        assert_equal(node1_info["total_amount"], 50)
+
+        coinbase_tx = self.nodes[0].getblock(self.nodes[0].getblockhash(0))["tx"][0]
+
+        # Test rpc getraw functionality
+        assert_raises_rpc_error(-5, "The genesis block coinbase is not considered an ordinary transaction and cannot be retrieved", self.nodes[0].getrawtransaction, coinbase_tx)
+        self.nodes[1].getrawtransaction(coinbase_tx)
+
+if __name__ == '__main__':
+    ConnectGenesisTest().main()

test/functional/test_runner.py

@@ -154,6 +154,7 @@
     'feature_config_args.py',
     'feature_help.py',
     'feature_mandatory_coinbase.py',
+    'feature_connect_coinbase.py'
     # Don't append tests at the end to avoid merge conflicts
     # Put them in a random line within the section that fits their approximate run-time
 ]