new_contents: #!/usr/bin/env python3
  # Copyright (c) 2014-2018 The Bitcoin Core developers
  # Distributed under the MIT software license, see the accompanying
  # file COPYING or http://www.opensource.org/licenses/mit-license.php.
  """Test coinbase transactions return the correct categories.
  
  Tests listtransactions, listsinceblock, and gettransaction.
  """
  
  from test_framework.test_framework import BitcoinTestFramework
  from test_framework.util import (
      assert_array_result
  )
  
  
  class CoinbaseCategoryTest(BitcoinTestFramework):
      def set_test_params(self):
          self.num_nodes = 1
  
      def skip_test_if_missing_module(self):
          self.skip_if_no_wallet()
  
      def assert_category(self, category, address, txid, skip):
          assert_array_result(self.nodes[0].listtransactions(skip=skip),
                              {"address": address},
                              {"category": category})
          assert_array_result(self.nodes[0].listsinceblock()["transactions"],
                              {"address": address},
                              {"category": category})
          assert_array_result(self.nodes[0].gettransaction(txid)["details"],
                              {"address": address},
                              {"category": category})
  
      def run_test(self):
          # Generate one block to an address
          address = self.nodes[0].getnewaddress()
          self.nodes[0].generatetoaddress(1, address)
          hash = self.nodes[0].getbestblockhash()
          txid = self.nodes[0].getblock(hash)["tx"][0]
  
          # Coinbase transaction is immature after 1 confirmation
          self.assert_category("immature", address, txid, 0)
  
          # Mine another 99 blocks on top
          self.nodes[0].generate(99)
          # Coinbase transaction is still immature after 100 confirmations
          self.assert_category("immature", address, txid, 99)
  
          # Mine one more block
          self.nodes[0].generate(1)
          # Coinbase transaction is now matured, so category is "generate"
          self.assert_category("generate", address, txid, 100)
  
          # Orphan block that paid to address
          self.nodes[0].invalidateblock(hash)
          # Coinbase transaction is now orphaned
          self.assert_category("orphan", address, txid, 100)
  
  
  if __name__ == '__main__':
      CoinbaseCategoryTest().main()
  
subject: Test coinbase category in wallet rpcs