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340 lines
15 KiB
340 lines
15 KiB
#!/usr/bin/env python3
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# Copyright (c) 2018 The Monero Project
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#
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without modification, are
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# permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice, this list of
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# conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright notice, this list
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# of conditions and the following disclaimer in the documentation and/or other
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# materials provided with the distribution.
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#
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# 3. Neither the name of the copyright holder nor the names of its contributors may be
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# used to endorse or promote products derived from this software without specific
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# prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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# THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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# THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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from __future__ import print_function
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import time
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"""Test daemon blockchain RPC calls
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Test the following RPCs:
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- get_info
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- generateblocks
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- misc block retrieval
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- pop_blocks
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- [TODO: many tests still need to be written]
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"""
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from framework.daemon import Daemon
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class BlockchainTest():
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def run_test(self):
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self.reset()
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self._test_generateblocks(5)
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self._test_alt_chains()
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def reset(self):
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print('Resetting blockchain')
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daemon = Daemon()
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res = daemon.get_height()
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daemon.pop_blocks(res.height - 1)
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daemon.flush_txpool()
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def _test_generateblocks(self, blocks):
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assert blocks >= 2
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print("Test generating", blocks, 'blocks')
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daemon = Daemon()
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# check info/height before generating blocks
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res_info = daemon.get_info()
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height = res_info.height
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prev_block = res_info.top_block_hash
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res_height = daemon.get_height()
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assert res_height.height == height
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assert int(res_info.wide_cumulative_difficulty, 16) == (res_info.cumulative_difficulty_top64 << 64) + res_info.cumulative_difficulty
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cumulative_difficulty = int(res_info.wide_cumulative_difficulty, 16)
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# we should not see a block at height
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ok = False
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try: daemon.getblock(height = height)
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except: ok = True
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assert ok
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res = daemon.get_fee_estimate()
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assert res.fee == 234562
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assert res.quantization_mask == 10000
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res = daemon.get_fee_estimate(10)
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assert res.fee <= 234562
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# generate blocks
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res_generateblocks = daemon.generateblocks('42ey1afDFnn4886T7196doS9GPMzexD9gXpsZJDwVjeRVdFCSoHnv7KPbBeGpzJBzHRCAs9UxqeoyFQMYbqSWYTfJJQAWDm', blocks)
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# check info/height after generateblocks blocks
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assert res_generateblocks.height == height + blocks - 1
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res_info = daemon.get_info()
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assert res_info.height == height + blocks
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assert res_info.top_block_hash != prev_block
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res_height = daemon.get_height()
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assert res_height.height == height + blocks
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# get the blocks, check they have the right height
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res_getblock = []
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for n in range(blocks):
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res_getblock.append(daemon.getblock(height = height + n))
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block_header = res_getblock[n].block_header
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assert abs(block_header.timestamp - time.time()) < 60 # within 60 seconds
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assert block_header.height == height + n
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assert block_header.orphan_status == False
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assert block_header.depth == blocks - n - 1
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assert block_header.prev_hash == prev_block, prev_block
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assert int(block_header.wide_difficulty, 16) == (block_header.difficulty_top64 << 64) + block_header.difficulty
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assert int(block_header.wide_cumulative_difficulty, 16) == (block_header.cumulative_difficulty_top64 << 64) + block_header.cumulative_difficulty
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assert block_header.reward >= 600000000000 # tail emission
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cumulative_difficulty += int(block_header.wide_difficulty, 16)
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assert cumulative_difficulty == int(block_header.wide_cumulative_difficulty, 16)
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assert block_header.block_size > 0
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assert block_header.block_weight >= block_header.block_size
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assert block_header.long_term_weight > 0
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prev_block = block_header.hash
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# we should not see a block after that
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ok = False
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try: daemon.getblock(height = height + blocks)
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except: ok = True
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assert ok
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# getlastblockheader and by height/hash should return the same block
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res_getlastblockheader = daemon.getlastblockheader()
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assert res_getlastblockheader.block_header == block_header
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res_getblockheaderbyhash = daemon.getblockheaderbyhash(prev_block)
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assert res_getblockheaderbyhash.block_header == block_header
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res_getblockheaderbyheight = daemon.getblockheaderbyheight(height + blocks - 1)
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assert res_getblockheaderbyheight.block_header == block_header
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# getting a block template after that should have the right height, etc
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res_getblocktemplate = daemon.getblocktemplate('42ey1afDFnn4886T7196doS9GPMzexD9gXpsZJDwVjeRVdFCSoHnv7KPbBeGpzJBzHRCAs9UxqeoyFQMYbqSWYTfJJQAWDm')
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assert res_getblocktemplate.height == height + blocks
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assert res_getblocktemplate.reserved_offset > 0
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assert res_getblocktemplate.prev_hash == res_info.top_block_hash
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assert res_getblocktemplate.expected_reward >= 600000000000
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assert len(res_getblocktemplate.blocktemplate_blob) > 0
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assert len(res_getblocktemplate.blockhashing_blob) > 0
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assert int(res_getblocktemplate.wide_difficulty, 16) == (res_getblocktemplate.difficulty_top64 << 64) + res_getblocktemplate.difficulty
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# diff etc should be the same
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assert res_getblocktemplate.prev_hash == res_info.top_block_hash
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res_getlastblockheader = daemon.getlastblockheader()
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# pop a block
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res_popblocks = daemon.pop_blocks(1)
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assert res_popblocks.height == height + blocks - 1
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res_info = daemon.get_info()
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assert res_info.height == height + blocks - 1
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# getlastblockheader and by height/hash should return the previous block
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block_header = res_getblock[blocks - 2].block_header
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block_header.depth = 0 # this will be different, ignore it
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res_getlastblockheader = daemon.getlastblockheader()
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assert res_getlastblockheader.block_header == block_header
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res_getblockheaderbyhash = daemon.getblockheaderbyhash(block_header.hash)
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assert res_getblockheaderbyhash.block_header == block_header
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res_getblockheaderbyheight = daemon.getblockheaderbyheight(height + blocks - 2)
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assert res_getblockheaderbyheight.block_header == block_header
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# we should not see the popped block anymore
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ok = False
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try: daemon.getblock(height = height + blocks - 1)
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except: ok = True
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assert ok
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# get transactions
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res = daemon.get_info()
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assert res.height == height + blocks - 1
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nblocks = height + blocks - 1
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res = daemon.getblockheadersrange(0, nblocks - 1)
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assert len(res.headers) == nblocks
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assert res.headers[-1] == block_header
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txids = [x.miner_tx_hash for x in res.headers]
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res = daemon.get_transactions(txs_hashes = txids)
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assert len(res.txs) == nblocks
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assert not 'missed_txs' in res or len(res.missed_txs) == 0
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running_output_index = 0
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for i in range(len(txids)):
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tx = res.txs[i]
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assert tx.tx_hash == txids[i]
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assert not tx.double_spend_seen
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assert not tx.in_pool
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assert tx.block_height == i
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if i > 0:
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for idx in tx.output_indices:
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assert idx == running_output_index
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running_output_index += 1
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res_out = daemon.get_outs([{'amount': 0, 'index': idx} for idx in tx.output_indices], get_txid = True)
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assert len(res_out.outs) == len(tx.output_indices)
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for out in res_out.outs:
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assert len(out.key) == 64
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assert len(out.mask) == 64
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assert not out.unlocked
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assert out.height == i
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assert out.txid == txids[i]
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for i in range(height + nblocks - 1):
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res_sum = daemon.get_coinbase_tx_sum(i, 1)
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res_header = daemon.getblockheaderbyheight(i)
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assert res_sum.emission_amount == res_header.block_header.reward
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res = daemon.get_coinbase_tx_sum(0, 1)
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assert res.emission_amount == 17592186044415
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assert res.fee_amount == 0
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sum_blocks = height + nblocks - 1
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res = daemon.get_coinbase_tx_sum(0, sum_blocks)
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extrapolated = 17592186044415 + 17592186044415 * 2 * (sum_blocks - 1)
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assert res.emission_amount < extrapolated and res.emission_amount > extrapolated - 1e12
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assert res.fee_amount == 0
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sum_blocks_emission = res.emission_amount
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res = daemon.get_coinbase_tx_sum(1, sum_blocks)
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assert res.emission_amount == sum_blocks_emission - 17592186044415
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assert res.fee_amount == 0
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res = daemon.get_output_distribution([0, 1, 17592186044415], 0, 0)
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assert len(res.distributions) == 3
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for a in range(3):
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assert res.distributions[a].amount == [0, 1, 17592186044415][a]
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assert res.distributions[a].start_height == 0
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assert res.distributions[a].base == 0
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assert len(res.distributions[a].distribution) == height + nblocks - 1
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assert res.distributions[a].binary == False
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for i in range(height + nblocks - 1):
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assert res.distributions[a].distribution[i] == (1 if i > 0 and a == 0 else 1 if a == 2 and i == 0 else 0)
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res = daemon.get_output_histogram([], min_count = 0, max_count = 0)
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assert len(res.histogram) == 2
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for i in range(2):
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assert res.histogram[i].amount in [0, 17592186044415]
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assert res.histogram[i].total_instances in [height + nblocks - 2, 1]
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assert res.histogram[i].unlocked_instances == 0
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assert res.histogram[i].recent_instances == 0
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res = daemon.get_fee_estimate()
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assert res.fee == 234560
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assert res.quantization_mask == 10000
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res = daemon.get_fee_estimate(10)
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assert res.fee <= 234560
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def _test_alt_chains(self):
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print('Testing alt chains')
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daemon = Daemon()
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res = daemon.get_alt_blocks_hashes()
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starting_alt_blocks = res.blks_hashes if 'blks_hashes' in res else []
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res = daemon.get_info()
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root_block_hash = res.top_block_hash
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height = res.height
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prev_hash = res.top_block_hash
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res_template = daemon.getblocktemplate('42ey1afDFnn4886T7196doS9GPMzexD9gXpsZJDwVjeRVdFCSoHnv7KPbBeGpzJBzHRCAs9UxqeoyFQMYbqSWYTfJJQAWDm')
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nonce = 0
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# 5 siblings
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alt_blocks = [None] * 5
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for i in range(len(alt_blocks)):
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res = daemon.generateblocks('42ey1afDFnn4886T7196doS9GPMzexD9gXpsZJDwVjeRVdFCSoHnv7KPbBeGpzJBzHRCAs9UxqeoyFQMYbqSWYTfJJQAWDm', 1, prev_block = prev_hash, starting_nonce = nonce)
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assert res.height == height
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assert len(res.blocks) == 1
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txid = res.blocks[0]
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res = daemon.getblockheaderbyhash(txid)
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nonce = res.block_header.nonce
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print('mined ' + ('alt' if res.block_header.orphan_status else 'tip') + ' block ' + str(height) + ', nonce ' + str(nonce))
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assert res.block_header.prev_hash == prev_hash
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assert res.block_header.orphan_status == (i > 0)
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alt_blocks[i] = txid
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nonce += 1
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print('mining 3 on 1')
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# three more on [1]
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chain1 = []
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res = daemon.generateblocks('42ey1afDFnn4886T7196doS9GPMzexD9gXpsZJDwVjeRVdFCSoHnv7KPbBeGpzJBzHRCAs9UxqeoyFQMYbqSWYTfJJQAWDm', 3, prev_block = alt_blocks[1], starting_nonce = nonce)
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assert res.height == height + 3
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assert len(res.blocks) == 3
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blk_hash = res.blocks[2]
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res = daemon.getblockheaderbyhash(blk_hash)
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nonce = res.block_header.nonce
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assert not res.block_header.orphan_status
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nonce += 1
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chain1.append(blk_hash)
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chain1.append(res.block_header.prev_hash)
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print('Checking alt blocks match')
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res = daemon.get_alt_blocks_hashes()
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assert len(res.blks_hashes) == len(starting_alt_blocks) + 4
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for txid in alt_blocks:
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assert txid in res.blks_hashes or txid == alt_blocks[1]
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print('mining 4 on 3')
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# 4 more on [3], the chain will reorg when we mine the 4th
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top_block_hash = blk_hash
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prev_block = alt_blocks[3]
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for i in range(4):
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res = daemon.generateblocks('42ey1afDFnn4886T7196doS9GPMzexD9gXpsZJDwVjeRVdFCSoHnv7KPbBeGpzJBzHRCAs9UxqeoyFQMYbqSWYTfJJQAWDm', 1, prev_block = prev_block)
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assert res.height == height + 1 + i
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assert len(res.blocks) == 1
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prev_block = res.blocks[-1]
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res = daemon.getblockheaderbyhash(res.blocks[-1])
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assert res.block_header.orphan_status == (i < 3)
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res = daemon.get_info()
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assert res.height == ((height + 4) if i < 3 else height + 5)
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assert res.top_block_hash == (top_block_hash if i < 3 else prev_block)
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res = daemon.get_info()
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assert res.height == height + 5
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assert res.top_block_hash == prev_block
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print('Checking alt blocks match')
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res = daemon.get_alt_blocks_hashes()
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blks_hashes = res.blks_hashes
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assert len(blks_hashes) == len(starting_alt_blocks) + 7
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for txid in alt_blocks:
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assert txid in blks_hashes or txid == alt_blocks[3]
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for txid in chain1:
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assert txid in blks_hashes
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res = daemon.get_alternate_chains()
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assert len(res.chains) == 4
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tips = [chain.block_hash for chain in res.chains]
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for txid in tips:
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assert txid in blks_hashes
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for chain in res.chains:
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assert chain.length in [1, 4]
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assert chain.length == len(chain.block_hashes)
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assert chain.height == height + chain.length - 1 # all happen start at the same height
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assert chain.main_chain_parent_block == root_block_hash
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for txid in [alt_blocks[0], alt_blocks[2], alt_blocks[4]]:
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assert len([chain for chain in res.chains if chain.block_hash == txid]) == 1
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print('Saving blockchain explicitely')
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daemon.save_bc()
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if __name__ == '__main__':
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BlockchainTest().run_test()
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