neobytes/qa/rpc-tests/getchaintips.py
PastaPastaPasta 07dcddb4ca Backports 0.15 pr2 (#2597)
* Merge #9815: Trivial: use EXIT_ codes instead of magic numbers

a87d02a use EXIT_ codes instead of magic numbers (Marko Bencun)

* Merge #9801: Removed redundant parameter from mempool.PrioritiseTransaction

eaea2bb Removed redundant parameter from mempool.PrioritiseTransaction (gubatron)

* remove extra parameter (see 3a3745bb) in dash specific code

* Merge #9819: Remove harmless read of unusued priority estimates

bc8fd12 Remove harmless read of unusued priority estimates (Alex Morcos)

* Merge #9766: Add --exclude option to rpc-tests.py

c578408 Add exclude option to rpc-tests.py (John Newbery)

* Merge #9577: Fix docstrings in qa tests

3f95a80 Fix docstrings in qa tests (John Newbery)

* Merge #9823: qa: Set correct path for binaries in rpc tests

3333ad0 qa: Set correct path for binaries in rpc tests (MarcoFalke)

* Merge #9833: Trivial: fix comments referencing AppInit2

ef9f495 Trivial: fix comments referencing AppInit2 (Marko Bencun)

* Merge #9612: [trivial] Rephrase the definition of difficulty.

dc222f8 Trivial: Rephrase the definition of difficulty in the code. (Karl-Johan Alm)

* Merge #9847: Extra test vector for BIP32

30aedcb BIP32 extra test vector (Pieter Wuille)

* Merge #9839: [qa] Make import-rescan.py watchonly check reliable

864890a [qa] Make import-rescan.py watchonly check reliable (Russell Yanofsky)

Tree-SHA512: ea0e2b1d4fc8f35174c3d575fb751b428daf6ad3aa944fad4e3ddcc9195e4f17051473acabc54203b1d27cca64cf911b737ab92e986c40ef384410652e2dbea1

* Change back file params
2019-01-07 12:55:35 +03:00

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Python
Executable File

#!/usr/bin/env python3
# Copyright (c) 2014-2016 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Test the getchaintips RPC.
- introduce a network split
- work on chains of different lengths
- join the network together again
- verify that getchaintips now returns two chain tips.
"""
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import assert_equal
class GetChainTipsTest (BitcoinTestFramework):
def __init__(self):
super().__init__()
self.num_nodes = 4
self.setup_clean_chain = False
def 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)
assert_equal (tips[0]['status'], 'active')
# Split the network and build two chains of different lengths.
self.split_network ()
self.nodes[0].generate(10)
self.nodes[2].generate(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)
assert_equal (tips[0]['status'], 'active')
tips = self.nodes[3].getchaintips ()
assert_equal (len (tips), 1)
longTip = tips[0]
assert_equal (longTip['branchlen'], 0)
assert_equal (longTip['height'], 220)
assert_equal (tips[0]['status'], 'active')
# 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)
assert_equal (tips[1]['status'], 'valid-fork')
# We already checked that the long tip is the active one,
# update data to verify that the short tip matches the expected one.
tips[1]['branchlen'] = 0
tips[1]['status'] = 'active'
tips[1]['forkpoint'] = tips[1]['hash']
assert_equal (tips[1], shortTip)
if __name__ == '__main__':
GetChainTipsTest ().main ()