new_contents: # Copyright (c) 2017, the ElectrumX authors
  #
  # All rights reserved.
  #
  # The MIT License (MIT)
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  # Permission is hereby granted, free of charge, to any person obtaining
  # a copy of this software and associated documentation files (the
  # "Software"), to deal in the Software without restriction, including
  # without limitation the rights to use, copy, modify, merge, publish,
  # distribute, sublicense, and/or sell copies of the Software, and to
  # permit persons to whom the Software is furnished to do so, subject to
  # the following conditions:
  #
  # The above copyright notice and this permission notice shall be
  # included in all copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  # and warranty status of this software.
  
  import pytest
  
  from lib.coins import Litecoin, Bitcoin
  from lib.hash import Base58
  
  addresses = [
      (Bitcoin, "13xDKJbjh4acmLpNVr6Lc9hFcXRr9fyt4x",
       "206168f5322583ff37f8e55665a4789ae8963532", "b8cb80b26e8932f5b12a7e"),
      (Bitcoin, "3GxRZWkJufR5XA8hnNJgQ2gkASSheoBcmW",
       "a773db925b09add367dcc253c1f9bbc1d11ec6fd", "062d8515e50cb92b8a3a73"),
      (Litecoin, "LNBAaWuZmipg29WXfz5dtAm1pjo8FEH8yg",
       "206168f5322583ff37f8e55665a4789ae8963532", "b8cb80b26e8932f5b12a7e"),
      (Litecoin, "3GxRZWkJufR5XA8hnNJgQ2gkASSheoBcmW",
       "a773db925b09add367dcc253c1f9bbc1d11ec6fd", "062d8515e50cb92b8a3a73"),
  ]
  
  
  @pytest.fixture(params=addresses)
  def address(request):
      return request.param
  
  
  def test_address_to_hashX(address):
      coin, addr, _, hashX = address
      assert coin.address_to_hashX(addr).hex() == hashX
  
  
  def test_address_from_hash160(address):
      coin, addr, hash, _ = address
  
      raw = Base58.decode_check(addr)
      verlen = len(raw) - 20
      assert verlen > 0
      verbyte, hash_bytes = raw[:verlen], raw[verlen:]
      if coin.P2PKH_VERBYTE == verbyte:
          assert coin.P2PKH_address_from_hash160(bytes.fromhex(hash)) == addr
      elif coin.P2SH_VERBYTE == verbyte:
          assert coin.P2SH_address_from_hash160(bytes.fromhex(hash)) == addr
      else:
          raise Exception("Unknown version byte")
  
subject: add some addresses tests (#142)