|
| 1 | +#!/usr/bin/env python3 |
| 2 | +# Copyright (c) 2014-2016 The Bitcoin Core developers |
| 3 | +# Distributed under the MIT software license, see the accompanying |
| 4 | +# file COPYING or http://www.opensource.org/licenses/mit-license.php. |
| 5 | +"""Test RPCs related to blockchainstate. |
| 6 | +
|
| 7 | +Test the following RPCs: |
| 8 | + - gettxoutsetinfo |
| 9 | + - getdifficulty |
| 10 | + - getbestblockhash |
| 11 | + - getblockhash |
| 12 | + - getblockheader |
| 13 | + - getchaintxstats |
| 14 | + - getnetworkhashps |
| 15 | + - verifychain |
| 16 | +
|
| 17 | +Tests correspond to code in rpc/blockchain.cpp. |
| 18 | +""" |
| 19 | + |
| 20 | +from decimal import Decimal |
| 21 | +import http.client |
| 22 | +import subprocess |
| 23 | + |
| 24 | +from test_framework.test_framework import (BitcoinTestFramework, BITCOIND_PROC_WAIT_TIMEOUT) |
| 25 | +from test_framework.util import ( |
| 26 | + assert_equal, |
| 27 | + assert_raises, |
| 28 | + assert_raises_jsonrpc, |
| 29 | + assert_is_hex_string, |
| 30 | + assert_is_hash_string, |
| 31 | +) |
| 32 | + |
| 33 | + |
| 34 | +class BlockchainTest(BitcoinTestFramework): |
| 35 | + |
| 36 | + def __init__(self): |
| 37 | + super().__init__() |
| 38 | + self.setup_clean_chain = False |
| 39 | + self.num_nodes = 1 |
| 40 | + self.extra_args = [['-stopatheight=207']] |
| 41 | + |
| 42 | + def run_test(self): |
| 43 | + self._test_getchaintxstats() |
| 44 | + self._test_gettxoutsetinfo() |
| 45 | + self._test_getblockheader() |
| 46 | + self._test_getdifficulty() |
| 47 | + self._test_getnetworkhashps() |
| 48 | + self._test_stopatheight() |
| 49 | + assert self.nodes[0].verifychain(4, 0) |
| 50 | + |
| 51 | + def _test_getchaintxstats(self): |
| 52 | + chaintxstats = self.nodes[0].getchaintxstats(1) |
| 53 | + # 200 txs plus genesis tx |
| 54 | + assert_equal(chaintxstats['txcount'], 201) |
| 55 | + # tx rate should be 1 per 10 minutes, or 1/600 |
| 56 | + # we have to round because of binary math |
| 57 | + assert_equal(round(chaintxstats['txrate'] * 600, 10), Decimal(1)) |
| 58 | + |
| 59 | + def _test_gettxoutsetinfo(self): |
| 60 | + node = self.nodes[0] |
| 61 | + res = node.gettxoutsetinfo() |
| 62 | + |
| 63 | + assert_equal(res['total_amount'], Decimal('8725.00000000')) |
| 64 | + assert_equal(res['transactions'], 200) |
| 65 | + assert_equal(res['height'], 200) |
| 66 | + assert_equal(res['txouts'], 200) |
| 67 | + assert_equal(res['bogosize'], 17000), |
| 68 | + assert_equal(res['bestblock'], node.getblockhash(200)) |
| 69 | + size = res['disk_size'] |
| 70 | + assert size > 6400 |
| 71 | + assert size < 64000 |
| 72 | + assert_equal(len(res['bestblock']), 64) |
| 73 | + assert_equal(len(res['muhash']), 64) |
| 74 | + |
| 75 | + self.log.info("Test that gettxoutsetinfo() works for blockchain with just the genesis block") |
| 76 | + b1hash = node.getblockhash(1) |
| 77 | + node.invalidateblock(b1hash) |
| 78 | + |
| 79 | + res2 = node.gettxoutsetinfo() |
| 80 | + assert_equal(res2['transactions'], 0) |
| 81 | + assert_equal(res2['total_amount'], Decimal('0')) |
| 82 | + assert_equal(res2['height'], 0) |
| 83 | + assert_equal(res2['txouts'], 0) |
| 84 | + assert_equal(res2['bogosize'], 0), |
| 85 | + assert_equal(res2['bestblock'], node.getblockhash(0)) |
| 86 | + assert_equal(res2['muhash'], '1ab6089a655235d9609a687448dc4cc429302704eded8b0615f93bfe03ec658f') |
| 87 | + assert res2['muhash'] != res['muhash'] |
| 88 | + |
| 89 | + self.log.info("Test that gettxoutsetinfo() returns the same result after invalidate/reconsider block") |
| 90 | + node.reconsiderblock(b1hash) |
| 91 | + |
| 92 | + res3 = node.gettxoutsetinfo() |
| 93 | + assert_equal(res['total_amount'], res3['total_amount']) |
| 94 | + assert_equal(res['transactions'], res3['transactions']) |
| 95 | + assert_equal(res['height'], res3['height']) |
| 96 | + assert_equal(res['txouts'], res3['txouts']) |
| 97 | + assert_equal(res['bogosize'], res3['bogosize']) |
| 98 | + assert_equal(res['bestblock'], res3['bestblock']) |
| 99 | + assert_equal(res['muhash'], res3['muhash']) |
| 100 | + |
| 101 | + def _test_getblockheader(self): |
| 102 | + node = self.nodes[0] |
| 103 | + |
| 104 | + assert_raises_jsonrpc(-5, "Block not found", |
| 105 | + node.getblockheader, "nonsense") |
| 106 | + |
| 107 | + besthash = node.getbestblockhash() |
| 108 | + secondbesthash = node.getblockhash(199) |
| 109 | + header = node.getblockheader(besthash) |
| 110 | + |
| 111 | + assert_equal(header['hash'], besthash) |
| 112 | + assert_equal(header['height'], 200) |
| 113 | + assert_equal(header['confirmations'], 1) |
| 114 | + assert_equal(header['previousblockhash'], secondbesthash) |
| 115 | + assert_is_hex_string(header['chainwork']) |
| 116 | + assert_is_hash_string(header['hash']) |
| 117 | + assert_is_hash_string(header['previousblockhash']) |
| 118 | + assert_is_hash_string(header['merkleroot']) |
| 119 | + assert_is_hash_string(header['bits'], length=None) |
| 120 | + assert isinstance(header['time'], int) |
| 121 | + assert isinstance(header['mediantime'], int) |
| 122 | + assert isinstance(header['nonce'], int) |
| 123 | + assert isinstance(header['version'], int) |
| 124 | + assert isinstance(int(header['versionHex'], 16), int) |
| 125 | + assert isinstance(header['difficulty'], Decimal) |
| 126 | + |
| 127 | + def _test_getdifficulty(self): |
| 128 | + difficulty = self.nodes[0].getdifficulty() |
| 129 | + # 1 hash in 2 should be valid, so difficulty should be 1/2**31 |
| 130 | + # binary => decimal => binary math is why we do this check |
| 131 | + assert abs(difficulty * 2**31 - 1) < 0.0001 |
| 132 | + |
| 133 | + def _test_getnetworkhashps(self): |
| 134 | + hashes_per_second = self.nodes[0].getnetworkhashps() |
| 135 | + # This should be 2 hashes every 10 minutes or 1/300 |
| 136 | + assert abs(hashes_per_second * 300 - 1) < 0.0001 |
| 137 | + |
| 138 | + def _test_stopatheight(self): |
| 139 | + assert_equal(self.nodes[0].getblockcount(), 200) |
| 140 | + self.nodes[0].generate(6) |
| 141 | + assert_equal(self.nodes[0].getblockcount(), 206) |
| 142 | + self.log.debug('Node should not stop at this height') |
| 143 | + assert_raises(subprocess.TimeoutExpired, lambda: self.bitcoind_processes[0].wait(timeout=3)) |
| 144 | + try: |
| 145 | + self.nodes[0].generate(1) |
| 146 | + except (ConnectionError, http.client.BadStatusLine): |
| 147 | + pass # The node already shut down before response |
| 148 | + self.log.debug('Node should stop at this height...') |
| 149 | + self.bitcoind_processes[0].wait(timeout=BITCOIND_PROC_WAIT_TIMEOUT) |
| 150 | + self.nodes[0] = self.start_node(0, self.options.tmpdir) |
| 151 | + assert_equal(self.nodes[0].getblockcount(), 207) |
| 152 | + |
| 153 | + |
| 154 | +if __name__ == '__main__': |
| 155 | + BlockchainTest().main() |
0 commit comments