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58 lines
2.3 KiB
58 lines
2.3 KiB
#!/usr/bin/env python2 |
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# Copyright (c) 2014-2015 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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# |
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# Test spending coinbase transactions. |
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# The coinbase transaction in block N can appear in block |
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# N+100... so is valid in the mempool when the best block |
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# height is N+99. |
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# This test makes sure coinbase spends that will be mature |
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# in the next block are accepted into the memory pool, |
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# but less mature coinbase spends are NOT. |
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# |
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from test_framework.test_framework import BitcoinTestFramework |
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from test_framework.util import * |
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# Create one-input, one-output, no-fee transaction: |
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class MempoolSpendCoinbaseTest(BitcoinTestFramework): |
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def setup_network(self): |
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# Just need one node for this test |
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args = ["-checkmempool", "-debug=mempool"] |
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self.nodes = [] |
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self.nodes.append(start_node(0, self.options.tmpdir, args)) |
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self.is_network_split = False |
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def run_test(self): |
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chain_height = self.nodes[0].getblockcount() |
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assert_equal(chain_height, 200) |
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node0_address = self.nodes[0].getnewaddress() |
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# Coinbase at height chain_height-100+1 ok in mempool, should |
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# get mined. Coinbase at height chain_height-100+2 is |
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# is too immature to spend. |
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b = [ self.nodes[0].getblockhash(n) for n in range(101, 103) ] |
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coinbase_txids = [ self.nodes[0].getblock(h)['tx'][0] for h in b ] |
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spends_raw = [ create_tx(self.nodes[0], txid, node0_address, 49.99) for txid in coinbase_txids ] |
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spend_101_id = self.nodes[0].sendrawtransaction(spends_raw[0]) |
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# coinbase at height 102 should be too immature to spend |
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assert_raises(JSONRPCException, self.nodes[0].sendrawtransaction, spends_raw[1]) |
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# mempool should have just spend_101: |
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assert_equal(self.nodes[0].getrawmempool(), [ spend_101_id ]) |
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# mine a block, spend_101 should get confirmed |
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self.nodes[0].generate(1) |
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assert_equal(set(self.nodes[0].getrawmempool()), set()) |
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# ... and now height 102 can be spent: |
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spend_102_id = self.nodes[0].sendrawtransaction(spends_raw[1]) |
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assert_equal(self.nodes[0].getrawmempool(), [ spend_102_id ]) |
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if __name__ == '__main__': |
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MempoolSpendCoinbaseTest().main()
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