88 lines
2.9 KiB
Python
Executable File
88 lines
2.9 KiB
Python
Executable File
#!/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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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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- 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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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import (
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assert_equal,
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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 __init__(self):
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super().__init__()
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self.setup_clean_chain = False
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self.num_nodes = 2
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def run_test(self):
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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.nodes[0].verifychain(4, 0)
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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['bytes_serialized'], 13924),
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assert_equal(len(res['bestblock']), 64)
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assert_equal(len(res['hash_serialized']), 64)
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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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if __name__ == '__main__':
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BlockchainTest().main()
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