54 lines
1.8 KiB
54 lines
1.8 KiB
#!/usr/bin/env python |
|
# Copyright (c) 2014 The Bitcoin Core developers |
|
# Distributed under the MIT software license, see the accompanying |
|
# file COPYING or http://www.opensource.org/licenses/mit-license.php. |
|
|
|
# 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): |
|
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 ()
|
|
|