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-rwxr-xr-xtest/functional/rpc_blockchain.py227
1 files changed, 227 insertions, 0 deletions
diff --git a/test/functional/rpc_blockchain.py b/test/functional/rpc_blockchain.py
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+++ b/test/functional/rpc_blockchain.py
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+#!/usr/bin/env python3
+# Copyright (c) 2014-2017 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 RPCs related to blockchainstate.
+
+Test the following RPCs:
+ - getblockchaininfo
+ - gettxoutsetinfo
+ - getdifficulty
+ - getbestblockhash
+ - getblockhash
+ - getblockheader
+ - getchaintxstats
+ - getnetworkhashps
+ - verifychain
+
+Tests correspond to code in rpc/blockchain.cpp.
+"""
+
+from decimal import Decimal
+import http.client
+import subprocess
+
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import (
+ assert_equal,
+ assert_greater_than,
+ assert_greater_than_or_equal,
+ assert_raises,
+ assert_raises_rpc_error,
+ assert_is_hex_string,
+ assert_is_hash_string,
+)
+
+class BlockchainTest(BitcoinTestFramework):
+ def set_test_params(self):
+ self.num_nodes = 1
+ self.extra_args = [['-stopatheight=207', '-prune=1']]
+
+ def run_test(self):
+ self._test_getblockchaininfo()
+ self._test_getchaintxstats()
+ self._test_gettxoutsetinfo()
+ self._test_getblockheader()
+ self._test_getdifficulty()
+ self._test_getnetworkhashps()
+ self._test_stopatheight()
+ assert self.nodes[0].verifychain(4, 0)
+
+ def _test_getblockchaininfo(self):
+ self.log.info("Test getblockchaininfo")
+
+ keys = [
+ 'bestblockhash',
+ 'bip9_softforks',
+ 'blocks',
+ 'chain',
+ 'chainwork',
+ 'difficulty',
+ 'headers',
+ 'initialblockdownload',
+ 'mediantime',
+ 'pruned',
+ 'size_on_disk',
+ 'softforks',
+ 'verificationprogress',
+ 'warnings',
+ ]
+ res = self.nodes[0].getblockchaininfo()
+
+ # result should have these additional pruning keys if manual pruning is enabled
+ assert_equal(sorted(res.keys()), sorted(['pruneheight', 'automatic_pruning'] + keys))
+
+ # size_on_disk should be > 0
+ assert_greater_than(res['size_on_disk'], 0)
+
+ # pruneheight should be greater or equal to 0
+ assert_greater_than_or_equal(res['pruneheight'], 0)
+
+ # check other pruning fields given that prune=1
+ assert res['pruned']
+ assert not res['automatic_pruning']
+
+ self.restart_node(0, ['-stopatheight=207'])
+ res = self.nodes[0].getblockchaininfo()
+ # should have exact keys
+ assert_equal(sorted(res.keys()), keys)
+
+ self.restart_node(0, ['-stopatheight=207', '-prune=550'])
+ res = self.nodes[0].getblockchaininfo()
+ # result should have these additional pruning keys if prune=550
+ assert_equal(sorted(res.keys()), sorted(['pruneheight', 'automatic_pruning', 'prune_target_size'] + keys))
+
+ # check related fields
+ assert res['pruned']
+ assert_equal(res['pruneheight'], 0)
+ assert res['automatic_pruning']
+ assert_equal(res['prune_target_size'], 576716800)
+ assert_greater_than(res['size_on_disk'], 0)
+
+ def _test_getchaintxstats(self):
+ chaintxstats = self.nodes[0].getchaintxstats(1)
+ # 200 txs plus genesis tx
+ assert_equal(chaintxstats['txcount'], 201)
+ # tx rate should be 1 per 10 minutes, or 1/600
+ # we have to round because of binary math
+ assert_equal(round(chaintxstats['txrate'] * 600, 10), Decimal(1))
+
+ b1 = self.nodes[0].getblock(self.nodes[0].getblockhash(1))
+ b200 = self.nodes[0].getblock(self.nodes[0].getblockhash(200))
+ time_diff = b200['mediantime'] - b1['mediantime']
+
+ chaintxstats = self.nodes[0].getchaintxstats()
+ assert_equal(chaintxstats['time'], b200['time'])
+ assert_equal(chaintxstats['txcount'], 201)
+ assert_equal(chaintxstats['window_block_count'], 199)
+ assert_equal(chaintxstats['window_tx_count'], 199)
+ assert_equal(chaintxstats['window_interval'], time_diff)
+ assert_equal(round(chaintxstats['txrate'] * time_diff, 10), Decimal(199))
+
+ chaintxstats = self.nodes[0].getchaintxstats(blockhash=b1['hash'])
+ assert_equal(chaintxstats['time'], b1['time'])
+ assert_equal(chaintxstats['txcount'], 2)
+ assert_equal(chaintxstats['window_block_count'], 0)
+ assert('window_tx_count' not in chaintxstats)
+ assert('window_interval' not in chaintxstats)
+ assert('txrate' not in chaintxstats)
+
+ assert_raises_rpc_error(-8, "Invalid block count: should be between 0 and the block's height - 1", self.nodes[0].getchaintxstats, 201)
+
+ def _test_gettxoutsetinfo(self):
+ node = self.nodes[0]
+ res = node.gettxoutsetinfo()
+
+ assert_equal(res['total_amount'], Decimal('8725.00000000'))
+ assert_equal(res['transactions'], 200)
+ assert_equal(res['height'], 200)
+ assert_equal(res['txouts'], 200)
+ assert_equal(res['bogosize'], 17000),
+ assert_equal(res['bestblock'], node.getblockhash(200))
+ size = res['disk_size']
+ assert size > 6400
+ assert size < 64000
+ assert_equal(len(res['bestblock']), 64)
+ assert_equal(len(res['hash_serialized_2']), 64)
+
+ self.log.info("Test that gettxoutsetinfo() works for blockchain with just the genesis block")
+ b1hash = node.getblockhash(1)
+ node.invalidateblock(b1hash)
+
+ res2 = node.gettxoutsetinfo()
+ assert_equal(res2['transactions'], 0)
+ assert_equal(res2['total_amount'], Decimal('0'))
+ assert_equal(res2['height'], 0)
+ assert_equal(res2['txouts'], 0)
+ assert_equal(res2['bogosize'], 0),
+ assert_equal(res2['bestblock'], node.getblockhash(0))
+ assert_equal(len(res2['hash_serialized_2']), 64)
+
+ self.log.info("Test that gettxoutsetinfo() returns the same result after invalidate/reconsider block")
+ node.reconsiderblock(b1hash)
+
+ res3 = node.gettxoutsetinfo()
+ assert_equal(res['total_amount'], res3['total_amount'])
+ assert_equal(res['transactions'], res3['transactions'])
+ assert_equal(res['height'], res3['height'])
+ assert_equal(res['txouts'], res3['txouts'])
+ assert_equal(res['bogosize'], res3['bogosize'])
+ assert_equal(res['bestblock'], res3['bestblock'])
+ assert_equal(res['hash_serialized_2'], res3['hash_serialized_2'])
+
+ def _test_getblockheader(self):
+ node = self.nodes[0]
+
+ assert_raises_rpc_error(-5, "Block not found",
+ node.getblockheader, "nonsense")
+
+ besthash = node.getbestblockhash()
+ secondbesthash = node.getblockhash(199)
+ header = node.getblockheader(besthash)
+
+ assert_equal(header['hash'], besthash)
+ assert_equal(header['height'], 200)
+ assert_equal(header['confirmations'], 1)
+ assert_equal(header['previousblockhash'], secondbesthash)
+ assert_is_hex_string(header['chainwork'])
+ assert_is_hash_string(header['hash'])
+ assert_is_hash_string(header['previousblockhash'])
+ assert_is_hash_string(header['merkleroot'])
+ assert_is_hash_string(header['bits'], length=None)
+ assert isinstance(header['time'], int)
+ assert isinstance(header['mediantime'], int)
+ assert isinstance(header['nonce'], int)
+ assert isinstance(header['version'], int)
+ assert isinstance(int(header['versionHex'], 16), int)
+ assert isinstance(header['difficulty'], Decimal)
+
+ def _test_getdifficulty(self):
+ difficulty = self.nodes[0].getdifficulty()
+ # 1 hash in 2 should be valid, so difficulty should be 1/2**31
+ # binary => decimal => binary math is why we do this check
+ assert abs(difficulty * 2**31 - 1) < 0.0001
+
+ def _test_getnetworkhashps(self):
+ hashes_per_second = self.nodes[0].getnetworkhashps()
+ # This should be 2 hashes every 10 minutes or 1/300
+ assert abs(hashes_per_second * 300 - 1) < 0.0001
+
+ def _test_stopatheight(self):
+ assert_equal(self.nodes[0].getblockcount(), 200)
+ self.nodes[0].generate(6)
+ assert_equal(self.nodes[0].getblockcount(), 206)
+ self.log.debug('Node should not stop at this height')
+ assert_raises(subprocess.TimeoutExpired, lambda: self.nodes[0].process.wait(timeout=3))
+ try:
+ self.nodes[0].generate(1)
+ except (ConnectionError, http.client.BadStatusLine):
+ pass # The node already shut down before response
+ self.log.debug('Node should stop at this height...')
+ self.nodes[0].wait_until_stopped()
+ self.start_node(0)
+ assert_equal(self.nodes[0].getblockcount(), 207)
+
+
+if __name__ == '__main__':
+ BlockchainTest().main()