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150 lines
5.6 KiB
150 lines
5.6 KiB
#!/usr/bin/env python3 |
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# Copyright (c) 2014-2016 The Bitcoin Core developers |
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# Distributed under the MIT software license, see the accompanying |
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# file COPYING or http://www.opensource.org/licenses/mit-license.php. |
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"""Test RPCs related to blockchainstate. |
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|
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Test the following RPCs: |
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- gettxoutsetinfo |
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- getdifficulty |
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- getbestblockhash |
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- getblockhash |
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- getblockheader |
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- getchaintxstats |
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- getnetworkhashps |
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- verifychain |
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Tests correspond to code in rpc/blockchain.cpp. |
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""" |
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from decimal import Decimal |
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import http.client |
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import subprocess |
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from test_framework.test_framework import (BitcoinTestFramework, BITCOIND_PROC_WAIT_TIMEOUT) |
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from test_framework.util import ( |
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assert_equal, |
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assert_raises, |
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assert_raises_jsonrpc, |
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assert_is_hex_string, |
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assert_is_hash_string, |
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) |
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class BlockchainTest(BitcoinTestFramework): |
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def set_test_params(self): |
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self.num_nodes = 1 |
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self.extra_args = [['-stopatheight=207']] |
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def run_test(self): |
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self._test_getchaintxstats() |
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self._test_gettxoutsetinfo() |
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self._test_getblockheader() |
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self._test_getdifficulty() |
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self._test_getnetworkhashps() |
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self._test_stopatheight() |
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assert self.nodes[0].verifychain(4, 0) |
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def _test_getchaintxstats(self): |
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chaintxstats = self.nodes[0].getchaintxstats(1) |
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# 200 txs plus genesis tx |
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assert_equal(chaintxstats['txcount'], 201) |
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# tx rate should be 1 per 10 minutes, or 1/600 |
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# we have to round because of binary math |
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assert_equal(round(chaintxstats['txrate'] * 600, 10), Decimal(1)) |
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def _test_gettxoutsetinfo(self): |
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node = self.nodes[0] |
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res = node.gettxoutsetinfo() |
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assert_equal(res['total_amount'], Decimal('8725.00000000')) |
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assert_equal(res['transactions'], 200) |
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assert_equal(res['height'], 200) |
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assert_equal(res['txouts'], 200) |
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assert_equal(res['bogosize'], 17000), |
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assert_equal(res['bestblock'], node.getblockhash(200)) |
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size = res['disk_size'] |
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assert size > 6400 |
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assert size < 64000 |
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assert_equal(len(res['bestblock']), 64) |
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assert_equal(len(res['hash_serialized_2']), 64) |
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self.log.info("Test that gettxoutsetinfo() works for blockchain with just the genesis block") |
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b1hash = node.getblockhash(1) |
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node.invalidateblock(b1hash) |
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res2 = node.gettxoutsetinfo() |
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assert_equal(res2['transactions'], 0) |
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assert_equal(res2['total_amount'], Decimal('0')) |
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assert_equal(res2['height'], 0) |
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assert_equal(res2['txouts'], 0) |
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assert_equal(res2['bogosize'], 0), |
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assert_equal(res2['bestblock'], node.getblockhash(0)) |
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assert_equal(len(res2['hash_serialized_2']), 64) |
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self.log.info("Test that gettxoutsetinfo() returns the same result after invalidate/reconsider block") |
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node.reconsiderblock(b1hash) |
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res3 = node.gettxoutsetinfo() |
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assert_equal(res['total_amount'], res3['total_amount']) |
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assert_equal(res['transactions'], res3['transactions']) |
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assert_equal(res['height'], res3['height']) |
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assert_equal(res['txouts'], res3['txouts']) |
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assert_equal(res['bogosize'], res3['bogosize']) |
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assert_equal(res['bestblock'], res3['bestblock']) |
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assert_equal(res['hash_serialized_2'], res3['hash_serialized_2']) |
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def _test_getblockheader(self): |
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node = self.nodes[0] |
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assert_raises_jsonrpc(-5, "Block not found", |
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node.getblockheader, "nonsense") |
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besthash = node.getbestblockhash() |
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secondbesthash = node.getblockhash(199) |
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header = node.getblockheader(besthash) |
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assert_equal(header['hash'], besthash) |
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assert_equal(header['height'], 200) |
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assert_equal(header['confirmations'], 1) |
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assert_equal(header['previousblockhash'], secondbesthash) |
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assert_is_hex_string(header['chainwork']) |
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assert_is_hash_string(header['hash']) |
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assert_is_hash_string(header['previousblockhash']) |
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assert_is_hash_string(header['merkleroot']) |
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assert_is_hash_string(header['bits'], length=None) |
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assert isinstance(header['time'], int) |
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assert isinstance(header['mediantime'], int) |
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assert isinstance(header['nonce'], int) |
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assert isinstance(header['version'], int) |
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assert isinstance(int(header['versionHex'], 16), int) |
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assert isinstance(header['difficulty'], Decimal) |
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def _test_getdifficulty(self): |
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difficulty = self.nodes[0].getdifficulty() |
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# 1 hash in 2 should be valid, so difficulty should be 1/2**31 |
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# binary => decimal => binary math is why we do this check |
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assert abs(difficulty * 2**31 - 1) < 0.0001 |
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def _test_getnetworkhashps(self): |
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hashes_per_second = self.nodes[0].getnetworkhashps() |
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# This should be 2 hashes every 10 minutes or 1/300 |
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assert abs(hashes_per_second * 300 - 1) < 0.0001 |
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def _test_stopatheight(self): |
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assert_equal(self.nodes[0].getblockcount(), 200) |
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self.nodes[0].generate(6) |
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assert_equal(self.nodes[0].getblockcount(), 206) |
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self.log.debug('Node should not stop at this height') |
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assert_raises(subprocess.TimeoutExpired, lambda: self.nodes[0].process.wait(timeout=3)) |
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try: |
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self.nodes[0].generate(1) |
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except (ConnectionError, http.client.BadStatusLine): |
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pass # The node already shut down before response |
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self.log.debug('Node should stop at this height...') |
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self.nodes[0].process.wait(timeout=BITCOIND_PROC_WAIT_TIMEOUT) |
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self.start_node(0) |
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assert_equal(self.nodes[0].getblockcount(), 207) |
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if __name__ == '__main__': |
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BlockchainTest().main()
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