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-rwxr-xr-xqa/rpc-tests/getchaintips.py52
1 files changed, 41 insertions, 11 deletions
diff --git a/qa/rpc-tests/getchaintips.py b/qa/rpc-tests/getchaintips.py
index a83c499743..dda3450eb6 100755
--- a/qa/rpc-tests/getchaintips.py
+++ b/qa/rpc-tests/getchaintips.py
@@ -1,24 +1,54 @@
#!/usr/bin/env python
# Copyright (c) 2014 The Bitcoin Core developers
-# Distributed under the MIT/X11 software license, see the accompanying
+# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
-# Exercise the getchaintips API.
-
-# Since the test framework does not generate orphan blocks, we can
-# unfortunately not check for them!
+# Exercise the getchaintips API. We introduce a network split, work
+# on chains of different lengths, and join the network together again.
+# This gives us two tips, verify that it works.
from test_framework import BitcoinTestFramework
from util import assert_equal
class GetChainTipsTest (BitcoinTestFramework):
- def run_test (self, nodes):
- res = nodes[0].getchaintips ()
- assert_equal (len (res), 1)
- res = res[0]
- assert_equal (res['branchlen'], 0)
- assert_equal (res['height'], 200)
+ def run_test (self):
+ BitcoinTestFramework.run_test (self)
+
+ tips = self.nodes[0].getchaintips ()
+ assert_equal (len (tips), 1)
+ assert_equal (tips[0]['branchlen'], 0)
+ assert_equal (tips[0]['height'], 200)
+
+ # Split the network and build two chains of different lengths.
+ self.split_network ()
+ self.nodes[0].setgenerate (True, 10);
+ self.nodes[2].setgenerate (True, 20);
+ self.sync_all ()
+
+ tips = self.nodes[1].getchaintips ()
+ assert_equal (len (tips), 1)
+ shortTip = tips[0]
+ assert_equal (shortTip['branchlen'], 0)
+ assert_equal (shortTip['height'], 210)
+
+ tips = self.nodes[3].getchaintips ()
+ assert_equal (len (tips), 1)
+ longTip = tips[0]
+ assert_equal (longTip['branchlen'], 0)
+ assert_equal (longTip['height'], 220)
+
+ # Join the network halves and check that we now have two tips
+ # (at least at the nodes that previously had the short chain).
+ self.join_network ()
+
+ tips = self.nodes[0].getchaintips ()
+ assert_equal (len (tips), 2)
+ assert_equal (tips[0], longTip)
+
+ assert_equal (tips[1]['branchlen'], 10)
+ tips[1]['branchlen'] = 0;
+ assert_equal (tips[1], shortTip)
if __name__ == '__main__':
GetChainTipsTest ().main ()