Poll on getblocktemplate result rather than use bare sleep to avoid race condition.
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dec148f498
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@ -7,6 +7,8 @@ from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import *
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from time import *
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from test_framework.mininode import COIN
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import time
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class PrioritiseTransactionTest (BitcoinTestFramework):
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@ -67,7 +69,7 @@ class PrioritiseTransactionTest (BitcoinTestFramework):
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self.sync_all()
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# Create tx of lower value to be prioritized on node 0
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# Older transactions get mined first, so this lower value, newer tx is unlikely to be mined without prioritization
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# Older transactions get mined first, so this lower value, newer tx is unlikely to be mined without prioritisation
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priority_tx_0 = self.nodes[0].sendtoaddress(self.nodes[1].getnewaddress(), 0.1)
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# Check that priority_tx_0 is not in block_template() prior to prioritisation
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@ -79,7 +81,8 @@ class PrioritiseTransactionTest (BitcoinTestFramework):
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break
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assert_equal(in_block_template, False)
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priority_result = self.nodes[0].prioritisetransaction(priority_tx_0, 1000, int(3 * base_fee * COIN))
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priority_success = self.nodes[0].prioritisetransaction(priority_tx_0, 1000, int(3 * base_fee * COIN))
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assert(priority_success)
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# Check that prioritized transaction is not in getblocktemplate()
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# (not updated because no new txns)
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@ -91,6 +94,7 @@ class PrioritiseTransactionTest (BitcoinTestFramework):
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break
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assert_equal(in_block_template, False)
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# Sending a new transaction will make getblocktemplate refresh within 10s
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self.nodes[0].sendtoaddress(self.nodes[1].getnewaddress(), 0.1)
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# Check that prioritized transaction is not in getblocktemplate()
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@ -103,16 +107,23 @@ class PrioritiseTransactionTest (BitcoinTestFramework):
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break
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assert_equal(in_block_template, False)
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sleep(10)
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# Check that prioritized transaction is in getblocktemplate()
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in_block_template = False
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# getblocktemplate() will refresh after 1 min, or after 10 sec if new transaction is added to mempool
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# Mempool is probed every 10 seconds. We'll give getblocktemplate() a maximum of 30 seconds to refresh
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block_template = self.nodes[0].getblocktemplate()
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for tx in block_template['transactions']:
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if tx['hash'] == priority_tx_0:
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in_block_template = True
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break
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assert_equal(in_block_template, True)
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start = time.time();
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in_block_template = False
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while in_block_template == False:
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for tx in block_template['transactions']:
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if tx['hash'] == priority_tx_0:
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in_block_template = True
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break
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if time.time() - start > 30:
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raise AssertionError("Test timed out because prioritised transaction was not returned by getblocktemplate within 30 seconds.")
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sleep(1)
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block_template = self.nodes[0].getblocktemplate()
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assert(in_block_template)
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# Node 1 doesn't get the next block, so this *shouldn't* be mined despite being prioritized on node 1
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priority_tx_1 = self.nodes[1].sendtoaddress(self.nodes[0].getnewaddress(), 0.1)
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