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@ -6,6 +6,7 @@
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from test_framework.mininode import *
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import *
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import re
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import time
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from test_framework.blocktools import create_block, create_coinbase
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@ -21,6 +22,10 @@ VB_THRESHOLD = 108 # versionbits activation threshold for regtest
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VB_TOP_BITS = 0x20000000
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VB_UNKNOWN_BIT = 27 # Choose a bit unassigned to any deployment
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WARN_UNKNOWN_RULES_MINED = "Unknown block versions being mined! It's possible unknown rules are in effect"
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WARN_UNKNOWN_RULES_ACTIVE = "unknown new rules activated (versionbit {})".format(VB_UNKNOWN_BIT)
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VB_PATTERN = re.compile("^Warning.*versionbit")
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# TestNode: bare-bones "peer". Used mostly as a conduit for a test to sending
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# p2p messages to a node, generating the messages in the main testing logic.
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class TestNode(NodeConnCB):
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@ -65,16 +70,12 @@ class VersionBitsWarningTest(BitcoinTestFramework):
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self.num_nodes = 1
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def setup_network(self):
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self.nodes = []
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self.alert_filename = os.path.join(self.options.tmpdir, "alert.txt")
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# Open and close to create zero-length file
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with open(self.alert_filename, 'w') as f:
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with open(self.alert_filename, 'w') as _:
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pass
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self.node_options = ["-debug", "-logtimemicros=1", "-alertnotify=echo %s >> \"" + self.alert_filename + "\""]
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self.nodes.append(start_node(0, self.options.tmpdir, self.node_options))
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import re
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self.vb_pattern = re.compile("^Warning.*versionbit")
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self.extra_args = [["-debug", "-logtimemicros=1", "-alertnotify=echo %s >> \"" + self.alert_filename + "\""]]
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self.nodes = start_nodes(self.num_nodes, self.options.tmpdir, self.extra_args)
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# Send numblocks blocks via peer with nVersionToUse set.
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def send_blocks_with_version(self, peer, numblocks, nVersionToUse):
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@ -83,7 +84,7 @@ class VersionBitsWarningTest(BitcoinTestFramework):
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block_time = self.nodes[0].getblockheader(tip)["time"]+1
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tip = int(tip, 16)
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for i in range(numblocks):
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for _ in range(numblocks):
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block = create_block(tip, create_coinbase(height+1), block_time)
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block.nVersion = nVersionToUse
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block.solve()
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@ -96,7 +97,7 @@ class VersionBitsWarningTest(BitcoinTestFramework):
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def test_versionbits_in_alert_file(self):
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with open(self.alert_filename, 'r') as f:
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alert_text = f.read()
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assert(self.vb_pattern.match(alert_text))
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assert(VB_PATTERN.match(alert_text))
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def run_test(self):
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# Setup the p2p connection and start up the network thread.
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@ -123,8 +124,9 @@ class VersionBitsWarningTest(BitcoinTestFramework):
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self.nodes[0].generate(VB_PERIOD - VB_THRESHOLD + 1)
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# Check that we're not getting any versionbit-related errors in
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# get*info()
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assert(not self.vb_pattern.match(self.nodes[0].getmininginfo()["errors"]))
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assert(not self.vb_pattern.match(self.nodes[0].getnetworkinfo()["warnings"]))
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assert(not VB_PATTERN.match(self.nodes[0].getinfo()["errors"]))
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assert(not VB_PATTERN.match(self.nodes[0].getmininginfo()["errors"]))
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assert(not VB_PATTERN.match(self.nodes[0].getnetworkinfo()["warnings"]))
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# 3. Now build one period of blocks with >= VB_THRESHOLD blocks signaling
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# some unknown bit
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@ -134,8 +136,9 @@ class VersionBitsWarningTest(BitcoinTestFramework):
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# have gotten a different alert due to more than 51/100 blocks
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# being of unexpected version.
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# Check that get*info() shows some kind of error.
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assert("Unknown block versions" in self.nodes[0].getmininginfo()["errors"])
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assert("Unknown block versions" in self.nodes[0].getnetworkinfo()["warnings"])
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assert(WARN_UNKNOWN_RULES_MINED in self.nodes[0].getinfo()["errors"])
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assert(WARN_UNKNOWN_RULES_MINED in self.nodes[0].getmininginfo()["errors"])
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assert(WARN_UNKNOWN_RULES_MINED in self.nodes[0].getnetworkinfo()["warnings"])
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# Mine a period worth of expected blocks so the generic block-version warning
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# is cleared, and restart the node. This should move the versionbit state
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@ -144,21 +147,21 @@ class VersionBitsWarningTest(BitcoinTestFramework):
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stop_node(self.nodes[0], 0)
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wait_bitcoinds()
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# Empty out the alert file
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with open(self.alert_filename, 'w') as f:
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with open(self.alert_filename, 'w') as _:
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pass
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self.nodes[0] = start_node(0, self.options.tmpdir, ["-debug", "-logtimemicros=1", "-alertnotify=echo %s >> \"" + self.alert_filename + "\""])
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self.nodes = start_nodes(self.num_nodes, self.options.tmpdir, self.extra_args)
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# Connecting one block should be enough to generate an error.
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self.nodes[0].generate(1)
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assert("unknown new rules" in self.nodes[0].getmininginfo()["errors"])
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assert("unknown new rules" in self.nodes[0].getnetworkinfo()["warnings"])
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assert(WARN_UNKNOWN_RULES_ACTIVE in self.nodes[0].getinfo()["errors"])
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assert(WARN_UNKNOWN_RULES_ACTIVE in self.nodes[0].getmininginfo()["errors"])
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assert(WARN_UNKNOWN_RULES_ACTIVE in self.nodes[0].getnetworkinfo()["warnings"])
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stop_node(self.nodes[0], 0)
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wait_bitcoinds()
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self.test_versionbits_in_alert_file()
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# Test framework expects the node to still be running...
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self.nodes[0] = start_node(0, self.options.tmpdir, ["-debug", "-logtimemicros=1", "-alertnotify=echo %s >> \"" + self.alert_filename + "\""])
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self.nodes = start_nodes(self.num_nodes, self.options.tmpdir, self.extra_args)
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if __name__ == '__main__':
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VersionBitsWarningTest().main()
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