From dcb98466b4f8193fc28656d17b2317f21665fa3a Mon Sep 17 00:00:00 2001 From: Daniel Kraft Date: Mon, 20 Oct 2014 14:14:04 +0200 Subject: [PATCH] Extend getchaintips RPC test. Add the capability to simulate network splits to the RPC test framework and use it to do more extensive testing of 'getchaintips'. --- qa/rpc-tests/forknotify.py | 35 ++++++++-------- qa/rpc-tests/getblocktemplate.py | 20 ++++----- qa/rpc-tests/getchaintips.py | 50 ++++++++++++++++++----- qa/rpc-tests/listtransactions.py | 50 ++++++++++++----------- qa/rpc-tests/receivedby.py | 68 +++++++++++++++---------------- qa/rpc-tests/smartfees.py | 48 +++++++++++----------- qa/rpc-tests/test_framework.py | 69 +++++++++++++++++++++++++------- 7 files changed, 206 insertions(+), 134 deletions(-) diff --git a/qa/rpc-tests/forknotify.py b/qa/rpc-tests/forknotify.py index a482f7cc5ad..23bfb74175e 100755 --- a/qa/rpc-tests/forknotify.py +++ b/qa/rpc-tests/forknotify.py @@ -17,31 +17,30 @@ class ForkNotifyTest(BitcoinTestFramework): alert_filename = None # Set by setup_network - def setup_network(self, test_dir): - nodes = [] - self.alert_filename = os.path.join(test_dir, "alert.txt") + def setup_network(self): + self.nodes = [] + self.alert_filename = os.path.join(self.options.tmpdir, "alert.txt") with open(self.alert_filename, 'w') as f: pass # Just open then close to create zero-length file - nodes.append(start_node(0, test_dir, + self.nodes.append(start_node(0, self.options.tmpdir, ["-blockversion=2", "-alertnotify=echo %s >> '" + self.alert_filename + "'"])) # Node1 mines block.version=211 blocks - nodes.append(start_node(1, test_dir, + self.nodes.append(start_node(1, self.options.tmpdir, ["-blockversion=211"])) - connect_nodes(nodes[1], 0) + connect_nodes(self.nodes[1], 0) - sync_blocks(nodes) - return nodes - + self.is_network_split = False + self.sync_all() - def run_test(self, nodes): + def run_test(self): # Mine 51 up-version blocks - nodes[1].setgenerate(True, 51) - sync_blocks(nodes) + self.nodes[1].setgenerate(True, 51) + self.sync_all() # -alertnotify should trigger on the 51'st, # but mine and sync another to give # -alertnotify time to write - nodes[1].setgenerate(True, 1) - sync_blocks(nodes) + self.nodes[1].setgenerate(True, 1) + self.sync_all() with open(self.alert_filename, 'r') as f: alert_text = f.read() @@ -50,10 +49,10 @@ class ForkNotifyTest(BitcoinTestFramework): raise AssertionError("-alertnotify did not warn of up-version blocks") # Mine more up-version blocks, should not get more alerts: - nodes[1].setgenerate(True, 1) - sync_blocks(nodes) - nodes[1].setgenerate(True, 1) - sync_blocks(nodes) + self.nodes[1].setgenerate(True, 1) + self.sync_all() + self.nodes[1].setgenerate(True, 1) + self.sync_all() with open(self.alert_filename, 'r') as f: alert_text2 = f.read() diff --git a/qa/rpc-tests/getblocktemplate.py b/qa/rpc-tests/getblocktemplate.py index 8d97719ec34..5ae5d096013 100755 --- a/qa/rpc-tests/getblocktemplate.py +++ b/qa/rpc-tests/getblocktemplate.py @@ -51,40 +51,40 @@ class GetBlockTemplateTest(BitcoinTestFramework): Test longpolling with getblocktemplate. ''' - def run_test(self, nodes): + def run_test(self): print "Warning: this test will take about 70 seconds in the best case. Be patient." - nodes[0].setgenerate(True, 10) - templat = nodes[0].getblocktemplate() + self.nodes[0].setgenerate(True, 10) + templat = self.nodes[0].getblocktemplate() longpollid = templat['longpollid'] # longpollid should not change between successive invocations if nothing else happens - templat2 = nodes[0].getblocktemplate() + templat2 = self.nodes[0].getblocktemplate() assert(templat2['longpollid'] == longpollid) # Test 1: test that the longpolling wait if we do nothing - thr = LongpollThread(nodes[0]) + thr = LongpollThread(self.nodes[0]) thr.start() # check that thread still lives thr.join(5) # wait 5 seconds or until thread exits assert(thr.is_alive()) # Test 2: test that longpoll will terminate if another node generates a block - nodes[1].setgenerate(True, 1) # generate a block on another node + self.nodes[1].setgenerate(True, 1) # generate a block on another node # check that thread will exit now that new transaction entered mempool thr.join(5) # wait 5 seconds or until thread exits assert(not thr.is_alive()) # Test 3: test that longpoll will terminate if we generate a block ourselves - thr = LongpollThread(nodes[0]) + thr = LongpollThread(self.nodes[0]) thr.start() - nodes[0].setgenerate(True, 1) # generate a block on another node + self.nodes[0].setgenerate(True, 1) # generate a block on another node thr.join(5) # wait 5 seconds or until thread exits assert(not thr.is_alive()) # Test 4: test that introducing a new transaction into the mempool will terminate the longpoll - thr = LongpollThread(nodes[0]) + thr = LongpollThread(self.nodes[0]) thr.start() # generate a random transaction and submit it - (txid, txhex, fee) = random_transaction(nodes, Decimal("1.1"), Decimal("0.0"), Decimal("0.001"), 20) + (txid, txhex, fee) = random_transaction(self.nodes, Decimal("1.1"), Decimal("0.0"), Decimal("0.001"), 20) # after one minute, every 10 seconds the mempool is probed, so in 80 seconds it should have returned thr.join(60 + 20) assert(not thr.is_alive()) diff --git a/qa/rpc-tests/getchaintips.py b/qa/rpc-tests/getchaintips.py index a83c4997436..842fcad2b28 100755 --- a/qa/rpc-tests/getchaintips.py +++ b/qa/rpc-tests/getchaintips.py @@ -3,22 +3,52 @@ # Distributed under the MIT/X11 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 () diff --git a/qa/rpc-tests/listtransactions.py b/qa/rpc-tests/listtransactions.py index 50385b43720..6102052a6f9 100755 --- a/qa/rpc-tests/listtransactions.py +++ b/qa/rpc-tests/listtransactions.py @@ -33,62 +33,64 @@ def check_array_result(object_array, to_match, expected): class ListTransactionsTest(BitcoinTestFramework): - def run_test(self, nodes): + def run_test(self): # Simple send, 0 to 1: - txid = nodes[0].sendtoaddress(nodes[1].getnewaddress(), 0.1) - sync_mempools(nodes) - check_array_result(nodes[0].listtransactions(), + txid = self.nodes[0].sendtoaddress(self.nodes[1].getnewaddress(), 0.1) + self.sync_all() + check_array_result(self.nodes[0].listtransactions(), {"txid":txid}, {"category":"send","account":"","amount":Decimal("-0.1"),"confirmations":0}) - check_array_result(nodes[1].listtransactions(), + check_array_result(self.nodes[1].listtransactions(), {"txid":txid}, {"category":"receive","account":"","amount":Decimal("0.1"),"confirmations":0}) # mine a block, confirmations should change: - nodes[0].setgenerate(True, 1) - sync_blocks(nodes) - check_array_result(nodes[0].listtransactions(), + self.nodes[0].setgenerate(True, 1) + self.sync_all() + check_array_result(self.nodes[0].listtransactions(), {"txid":txid}, {"category":"send","account":"","amount":Decimal("-0.1"),"confirmations":1}) - check_array_result(nodes[1].listtransactions(), + check_array_result(self.nodes[1].listtransactions(), {"txid":txid}, {"category":"receive","account":"","amount":Decimal("0.1"),"confirmations":1}) # send-to-self: - txid = nodes[0].sendtoaddress(nodes[0].getnewaddress(), 0.2) - check_array_result(nodes[0].listtransactions(), + txid = self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), 0.2) + check_array_result(self.nodes[0].listtransactions(), {"txid":txid, "category":"send"}, {"amount":Decimal("-0.2")}) - check_array_result(nodes[0].listtransactions(), + check_array_result(self.nodes[0].listtransactions(), {"txid":txid, "category":"receive"}, {"amount":Decimal("0.2")}) # sendmany from node1: twice to self, twice to node2: - send_to = { nodes[0].getnewaddress() : 0.11, nodes[1].getnewaddress() : 0.22, - nodes[0].getaccountaddress("from1") : 0.33, nodes[1].getaccountaddress("toself") : 0.44 } - txid = nodes[1].sendmany("", send_to) - sync_mempools(nodes) - check_array_result(nodes[1].listtransactions(), + send_to = { self.nodes[0].getnewaddress() : 0.11, + self.nodes[1].getnewaddress() : 0.22, + self.nodes[0].getaccountaddress("from1") : 0.33, + self.nodes[1].getaccountaddress("toself") : 0.44 } + txid = self.nodes[1].sendmany("", send_to) + self.sync_all() + check_array_result(self.nodes[1].listtransactions(), {"category":"send","amount":Decimal("-0.11")}, {"txid":txid} ) - check_array_result(nodes[0].listtransactions(), + check_array_result(self.nodes[0].listtransactions(), {"category":"receive","amount":Decimal("0.11")}, {"txid":txid} ) - check_array_result(nodes[1].listtransactions(), + check_array_result(self.nodes[1].listtransactions(), {"category":"send","amount":Decimal("-0.22")}, {"txid":txid} ) - check_array_result(nodes[1].listtransactions(), + check_array_result(self.nodes[1].listtransactions(), {"category":"receive","amount":Decimal("0.22")}, {"txid":txid} ) - check_array_result(nodes[1].listtransactions(), + check_array_result(self.nodes[1].listtransactions(), {"category":"send","amount":Decimal("-0.33")}, {"txid":txid} ) - check_array_result(nodes[0].listtransactions(), + check_array_result(self.nodes[0].listtransactions(), {"category":"receive","amount":Decimal("0.33")}, {"txid":txid, "account" : "from1"} ) - check_array_result(nodes[1].listtransactions(), + check_array_result(self.nodes[1].listtransactions(), {"category":"send","amount":Decimal("-0.44")}, {"txid":txid, "account" : ""} ) - check_array_result(nodes[1].listtransactions(), + check_array_result(self.nodes[1].listtransactions(), {"category":"receive","amount":Decimal("0.44")}, {"txid":txid, "account" : "toself"} ) diff --git a/qa/rpc-tests/receivedby.py b/qa/rpc-tests/receivedby.py index 61f5e0452b5..71702552421 100755 --- a/qa/rpc-tests/receivedby.py +++ b/qa/rpc-tests/receivedby.py @@ -54,36 +54,36 @@ def check_array_result(object_array, to_match, expected, should_not_find = False class ReceivedByTest(BitcoinTestFramework): - def run_test(self, nodes): + def run_test(self): ''' listreceivedbyaddress Test ''' # Send from node 0 to 1 - addr = nodes[1].getnewaddress() - txid = nodes[0].sendtoaddress(addr, 0.1) - sync_mempools(nodes) + addr = self.nodes[1].getnewaddress() + txid = self.nodes[0].sendtoaddress(addr, 0.1) + self.sync_all() #Check not listed in listreceivedbyaddress because has 0 confirmations - check_array_result(nodes[1].listreceivedbyaddress(), + check_array_result(self.nodes[1].listreceivedbyaddress(), {"address":addr}, { }, True) #Bury Tx under 10 block so it will be returned by listreceivedbyaddress - nodes[1].setgenerate(True, 10) - sync_blocks(nodes) - check_array_result(nodes[1].listreceivedbyaddress(), + self.nodes[1].setgenerate(True, 10) + self.sync_all() + check_array_result(self.nodes[1].listreceivedbyaddress(), {"address":addr}, {"address":addr, "account":"", "amount":Decimal("0.1"), "confirmations":10, "txids":[txid,]}) #With min confidence < 10 - check_array_result(nodes[1].listreceivedbyaddress(5), + check_array_result(self.nodes[1].listreceivedbyaddress(5), {"address":addr}, {"address":addr, "account":"", "amount":Decimal("0.1"), "confirmations":10, "txids":[txid,]}) #With min confidence > 10, should not find Tx - check_array_result(nodes[1].listreceivedbyaddress(11),{"address":addr},{ },True) + check_array_result(self.nodes[1].listreceivedbyaddress(11),{"address":addr},{ },True) #Empty Tx - addr = nodes[1].getnewaddress() - check_array_result(nodes[1].listreceivedbyaddress(0,True), + addr = self.nodes[1].getnewaddress() + check_array_result(self.nodes[1].listreceivedbyaddress(0,True), {"address":addr}, {"address":addr, "account":"", "amount":0, "confirmations":0, "txids":[]}) @@ -91,24 +91,24 @@ class ReceivedByTest(BitcoinTestFramework): getreceivedbyaddress Test ''' # Send from node 0 to 1 - addr = nodes[1].getnewaddress() - txid = nodes[0].sendtoaddress(addr, 0.1) - sync_mempools(nodes) + addr = self.nodes[1].getnewaddress() + txid = self.nodes[0].sendtoaddress(addr, 0.1) + self.sync_all() #Check balance is 0 because of 0 confirmations - balance = nodes[1].getreceivedbyaddress(addr) + balance = self.nodes[1].getreceivedbyaddress(addr) if balance != Decimal("0.0"): raise AssertionError("Wrong balance returned by getreceivedbyaddress, %0.2f"%(balance)) #Check balance is 0.1 - balance = nodes[1].getreceivedbyaddress(addr,0) + balance = self.nodes[1].getreceivedbyaddress(addr,0) if balance != Decimal("0.1"): raise AssertionError("Wrong balance returned by getreceivedbyaddress, %0.2f"%(balance)) #Bury Tx under 10 block so it will be returned by the default getreceivedbyaddress - nodes[1].setgenerate(True, 10) - sync_blocks(nodes) - balance = nodes[1].getreceivedbyaddress(addr) + self.nodes[1].setgenerate(True, 10) + self.sync_all() + balance = self.nodes[1].getreceivedbyaddress(addr) if balance != Decimal("0.1"): raise AssertionError("Wrong balance returned by getreceivedbyaddress, %0.2f"%(balance)) @@ -116,40 +116,40 @@ class ReceivedByTest(BitcoinTestFramework): listreceivedbyaccount + getreceivedbyaccount Test ''' #set pre-state - addrArr = nodes[1].getnewaddress() - account = nodes[1].getaccount(addrArr) - received_by_account_json = get_sub_array_from_array(nodes[1].listreceivedbyaccount(),{"account":account}) + addrArr = self.nodes[1].getnewaddress() + account = self.nodes[1].getaccount(addrArr) + received_by_account_json = get_sub_array_from_array(self.nodes[1].listreceivedbyaccount(),{"account":account}) if len(received_by_account_json) == 0: raise AssertionError("No accounts found in node") - balance_by_account = rec_by_accountArr = nodes[1].getreceivedbyaccount(account) + balance_by_account = rec_by_accountArr = self.nodes[1].getreceivedbyaccount(account) - txid = nodes[0].sendtoaddress(addr, 0.1) + txid = self.nodes[0].sendtoaddress(addr, 0.1) # listreceivedbyaccount should return received_by_account_json because of 0 confirmations - check_array_result(nodes[1].listreceivedbyaccount(), + check_array_result(self.nodes[1].listreceivedbyaccount(), {"account":account}, received_by_account_json) # getreceivedbyaddress should return same balance because of 0 confirmations - balance = nodes[1].getreceivedbyaccount(account) + balance = self.nodes[1].getreceivedbyaccount(account) if balance != balance_by_account: raise AssertionError("Wrong balance returned by getreceivedbyaccount, %0.2f"%(balance)) - nodes[1].setgenerate(True, 10) - sync_blocks(nodes) + self.nodes[1].setgenerate(True, 10) + self.sync_all() # listreceivedbyaccount should return updated account balance - check_array_result(nodes[1].listreceivedbyaccount(), + check_array_result(self.nodes[1].listreceivedbyaccount(), {"account":account}, {"account":received_by_account_json["account"], "amount":(received_by_account_json["amount"] + Decimal("0.1"))}) # getreceivedbyaddress should return updates balance - balance = nodes[1].getreceivedbyaccount(account) + balance = self.nodes[1].getreceivedbyaccount(account) if balance != balance_by_account + Decimal("0.1"): raise AssertionError("Wrong balance returned by getreceivedbyaccount, %0.2f"%(balance)) #Create a new account named "mynewaccount" that has a 0 balance - nodes[1].getaccountaddress("mynewaccount") - received_by_account_json = get_sub_array_from_array(nodes[1].listreceivedbyaccount(0,True),{"account":"mynewaccount"}) + self.nodes[1].getaccountaddress("mynewaccount") + received_by_account_json = get_sub_array_from_array(self.nodes[1].listreceivedbyaccount(0,True),{"account":"mynewaccount"}) if len(received_by_account_json) == 0: raise AssertionError("No accounts found in node") @@ -158,7 +158,7 @@ class ReceivedByTest(BitcoinTestFramework): raise AssertionError("Wrong balance returned by listreceivedbyaccount, %0.2f"%(received_by_account_json["amount"])) # Test getreceivedbyaccount for 0 amount accounts - balance = nodes[1].getreceivedbyaccount("mynewaccount") + balance = self.nodes[1].getreceivedbyaccount("mynewaccount") if balance != Decimal("0.0"): raise AssertionError("Wrong balance returned by getreceivedbyaccount, %0.2f"%(balance)) diff --git a/qa/rpc-tests/smartfees.py b/qa/rpc-tests/smartfees.py index 352a1de2d00..065bdb01c33 100755 --- a/qa/rpc-tests/smartfees.py +++ b/qa/rpc-tests/smartfees.py @@ -10,48 +10,48 @@ from util import * class EstimateFeeTest(BitcoinTestFramework): - def setup_network(self, test_dir): - nodes = [] - nodes.append(start_node(0, test_dir, + def setup_network(self): + self.nodes = [] + self.nodes.append(start_node(0, self.options.tmpdir, ["-debug=mempool", "-debug=estimatefee"])) # Node1 mines small-but-not-tiny blocks, and allows free transactions. # NOTE: the CreateNewBlock code starts counting block size at 1,000 bytes, # so blockmaxsize of 2,000 is really just 1,000 bytes (room enough for # 6 or 7 transactions) - nodes.append(start_node(1, test_dir, + self.nodes.append(start_node(1, self.options.tmpdir, ["-blockprioritysize=1500", "-blockmaxsize=2000", "-debug=mempool", "-debug=estimatefee"])) - connect_nodes(nodes[1], 0) + connect_nodes(self.nodes[1], 0) # Node2 is a stingy miner, that # produces very small blocks (room for only 3 or so transactions) node2args = [ "-blockprioritysize=0", "-blockmaxsize=1500", "-debug=mempool", "-debug=estimatefee"] - nodes.append(start_node(2, test_dir, node2args)) - connect_nodes(nodes[2], 0) + self.nodes.append(start_node(2, self.options.tmpdir, node2args)) + connect_nodes(self.nodes[2], 0) - sync_blocks(nodes) - return nodes + self.is_network_split = False + self.sync_all() - def run_test(self, nodes): + def run_test(self): # Prime the memory pool with pairs of transactions # (high-priority, random fee and zero-priority, random fee) min_fee = Decimal("0.001") fees_per_kb = []; for i in range(12): - (txid, txhex, fee) = random_zeropri_transaction(nodes, Decimal("1.1"), + (txid, txhex, fee) = random_zeropri_transaction(self.nodes, Decimal("1.1"), min_fee, min_fee, 20) tx_kbytes = (len(txhex)/2)/1000.0 fees_per_kb.append(float(fee)/tx_kbytes) # Mine blocks with node2 until the memory pool clears: - count_start = nodes[2].getblockcount() - while len(nodes[2].getrawmempool()) > 0: - nodes[2].setgenerate(True, 1) - sync_blocks(nodes) + count_start = self.nodes[2].getblockcount() + while len(self.nodes[2].getrawmempool()) > 0: + self.nodes[2].setgenerate(True, 1) + self.sync_all() - all_estimates = [ nodes[0].estimatefee(i) for i in range(1,20) ] + all_estimates = [ self.nodes[0].estimatefee(i) for i in range(1,20) ] print("Fee estimates, super-stingy miner: "+str([str(e) for e in all_estimates])) # Estimates should be within the bounds of what transactions fees actually were: @@ -63,25 +63,25 @@ class EstimateFeeTest(BitcoinTestFramework): # Generate transactions while mining 30 more blocks, this time with node1: for i in range(30): for j in range(random.randrange(6-4,6+4)): - (txid, txhex, fee) = random_transaction(nodes, Decimal("1.1"), + (txid, txhex, fee) = random_transaction(self.nodes, Decimal("1.1"), Decimal("0.0"), min_fee, 20) tx_kbytes = (len(txhex)/2)/1000.0 fees_per_kb.append(float(fee)/tx_kbytes) - nodes[1].setgenerate(True, 1) - sync_blocks(nodes) + self.nodes[1].setgenerate(True, 1) + self.sync_all() - all_estimates = [ nodes[0].estimatefee(i) for i in range(1,20) ] + all_estimates = [ self.nodes[0].estimatefee(i) for i in range(1,20) ] print("Fee estimates, more generous miner: "+str([ str(e) for e in all_estimates])) for e in filter(lambda x: x >= 0, all_estimates): if float(e)+delta < min(fees_per_kb) or float(e)-delta > max(fees_per_kb): raise AssertionError("Estimated fee (%f) out of range (%f,%f)"%(float(e), min_fee_kb, max_fee_kb)) # Finish by mining a normal-sized block: - while len(nodes[0].getrawmempool()) > 0: - nodes[0].setgenerate(True, 1) - sync_blocks(nodes) + while len(self.nodes[0].getrawmempool()) > 0: + self.nodes[0].setgenerate(True, 1) + self.sync_all() - final_estimates = [ nodes[0].estimatefee(i) for i in range(1,20) ] + final_estimates = [ self.nodes[0].estimatefee(i) for i in range(1,20) ] print("Final fee estimates: "+str([ str(e) for e in final_estimates])) diff --git a/qa/rpc-tests/test_framework.py b/qa/rpc-tests/test_framework.py index 5a185566553..f226496d0fc 100755 --- a/qa/rpc-tests/test_framework.py +++ b/qa/rpc-tests/test_framework.py @@ -21,22 +21,64 @@ from util import * class BitcoinTestFramework(object): # These may be over-ridden by subclasses: - def run_test(self, nodes): + def run_test(self): + for node in self.nodes: assert_equal(node.getblockcount(), 200) assert_equal(node.getbalance(), 25*50) def add_options(self, parser): pass - def setup_chain(self, tmp_directory): - print("Initializing test directory "+tmp_directory) - initialize_chain(tmp_directory) + def setup_chain(self): + print("Initializing test directory "+self.options.tmpdir) + initialize_chain(self.options.tmpdir) - def setup_network(self, tmp_directory): - nodes = start_nodes(2, tmp_directory) - connect_nodes(nodes[1], 0) - sync_blocks(nodes) - return nodes + def setup_network(self, split = False): + self.nodes = start_nodes(4, self.options.tmpdir) + + # Connect the nodes as a "chain". This allows us + # to split the network between nodes 1 and 2 to get + # two halves that can work on competing chains. + + # If we joined network halves, connect the nodes from the joint + # on outward. This ensures that chains are properly reorganised. + if not split: + connect_nodes(self.nodes[2], 1) + sync_blocks(self.nodes[1:2]) + sync_mempools(self.nodes[1:2]) + + connect_nodes(self.nodes[1], 0) + connect_nodes(self.nodes[3], 2) + self.is_network_split = split + self.sync_all() + + def split_network(self): + """ + Split the network of four nodes into nodes 0/1 and 2/3. + """ + assert not self.is_network_split + stop_nodes(self.nodes) + wait_bitcoinds() + self.setup_network(True) + + def sync_all(self): + if self.is_network_split: + sync_blocks(self.nodes[:1]) + sync_blocks(self.nodes[2:]) + sync_mempools(self.nodes[:1]) + sync_mempools(self.nodes[2:]) + else: + sync_blocks(self.nodes) + sync_mempools(self.nodes) + + def join_network(self): + """ + Join the (previously split) network halves together. + """ + assert self.is_network_split + stop_nodes(self.nodes) + wait_bitcoinds() + self.setup_network(False) def main(self): import optparse @@ -56,15 +98,14 @@ class BitcoinTestFramework(object): check_json_precision() success = False - nodes = [] try: if not os.path.isdir(self.options.tmpdir): os.makedirs(self.options.tmpdir) - self.setup_chain(self.options.tmpdir) + self.setup_chain() - nodes = self.setup_network(self.options.tmpdir) + self.setup_network() - self.run_test(nodes) + self.run_test() success = True @@ -80,7 +121,7 @@ class BitcoinTestFramework(object): if not self.options.nocleanup: print("Cleaning up") - stop_nodes(nodes) + stop_nodes(self.nodes) wait_bitcoinds() shutil.rmtree(self.options.tmpdir)