message: test: Speed up mempool_spend_coinbase.py
diff: @@ -20,41 +20,41 @@ from test_framework.wallet import MiniWallet
  class MempoolSpendCoinbaseTest(BitcoinTestFramework):
  def set_test_params(self):
  self.num_nodes = 1
  - self.setup_clean_chain = True
  def run_test(self):
  wallet = MiniWallet(self.nodes[0])
  - wallet.generate(200)
  - chain_height = self.nodes[0].getblockcount()
  - assert_equal(chain_height, 200)
  + # Invalidate two blocks, so that miniwallet has access to a coin that will mature in the next block
  + chain_height = 198
  + self.nodes[0].invalidateblock(self.nodes[0].getblockhash(chain_height + 1))
  + assert_equal(chain_height, self.nodes[0].getblockcount())
  # Coinbase at height chain_height-100+1 ok in mempool, should
  # get mined. Coinbase at height chain_height-100+2 is
  # too immature to spend.
  - b = [self.nodes[0].getblockhash(n) for n in range(101, 103)]
  - coinbase_txids = [self.nodes[0].getblock(h)['tx'][0] for h in b]
  - utxo_101 = wallet.get_utxo(txid=coinbase_txids[0])
  - utxo_102 = wallet.get_utxo(txid=coinbase_txids[1])
  + wallet.scan_blocks(start=chain_height - 100 + 1, num=1)
  + utxo_mature = wallet.get_utxo()
  + wallet.scan_blocks(start=chain_height - 100 + 2, num=1)
  + utxo_immature = wallet.get_utxo()
  - spend_101_id = wallet.send_self_transfer(from_node=self.nodes[0], utxo_to_spend=utxo_101)["txid"]
  + spend_mature_id = wallet.send_self_transfer(from_node=self.nodes[0], utxo_to_spend=utxo_mature)["txid"]
  - # coinbase at height 102 should be too immature to spend
  - immature_tx = wallet.create_self_transfer(from_node=self.nodes[0], utxo_to_spend=utxo_102, mempool_valid=False)
  + # other coinbase should be too immature to spend
  + immature_tx = wallet.create_self_transfer(from_node=self.nodes[0], utxo_to_spend=utxo_immature, mempool_valid=False)
  assert_raises_rpc_error(-26,
  "bad-txns-premature-spend-of-coinbase",
  lambda: self.nodes[0].sendrawtransaction(immature_tx['hex']))
  - # mempool should have just spend_101:
  - assert_equal(self.nodes[0].getrawmempool(), [spend_101_id])
  + # mempool should have just the mature one
  + assert_equal(self.nodes[0].getrawmempool(), [spend_mature_id])
  - # mine a block, spend_101 should get confirmed
  + # mine a block, mature one should get confirmed
  self.nodes[0].generate(1)
  assert_equal(set(self.nodes[0].getrawmempool()), set())
  - # ... and now height 102 can be spent:
  - spend_102_id = self.nodes[0].sendrawtransaction(immature_tx['hex'])
  - assert_equal(self.nodes[0].getrawmempool(), [spend_102_id])
  + # ... and now previously immature can be spent:
  + spend_new_id = self.nodes[0].sendrawtransaction(immature_tx['hex'])
  + assert_equal(self.nodes[0].getrawmempool(), [spend_new_id])
  if __name__ == '__main__':
  