old_contents: import pytest
  
  
  @pytest.fixture
  def coinbase():
      return '0xdc544d1aa88ff8bbd2f2aec754b1f1e99e1812fd'
  
  
  @pytest.fixture
  def private_key():
      return '0x58d23b55bc9cdce1f18c2500f40ff4ab7245df9a89505e9b1fa4851f623d241d'
  
  
  KEYFILE = '{"address":"dc544d1aa88ff8bbd2f2aec754b1f1e99e1812fd","crypto":{"cipher":"aes-128-ctr","ciphertext":"52e06bc9397ea9fa2f0dae8de2b3e8116e92a2ecca9ad5ff0061d1c449704e98","cipherparams":{"iv":"aa5d0a5370ef65395c1a6607af857124"},"kdf":"scrypt","kdfparams":{"dklen":32,"n":262144,"p":1,"r":8,"salt":"9fdf0764eb3645ffc184e166537f6fe70516bf0e34dc7311dea21f100f0c9263"},"mac":"4e0b51f42b865c15c485f4faefdd1f01a38637e5247f8c75ffe6a8c0eba856f6"},"id":"5a6124e0-10f1-4c1c-ae3e-d903eacb740a","version":3}'  # noqa: E501
  
new_contents: import pytest
  
  from web3.utils.module_testing.math_contract import (
      MATH_BYTECODE,
      MATH_ABI,
  )
  from web3.utils.module_testing.emitter_contract import (
      EMITTER_BYTECODE,
      EMITTER_ABI,
  )
  
  
  @pytest.fixture(scope="session")
  def math_contract_factory(web3):
      contract_factory = web3.eth.contract(abi=MATH_ABI, bytecode=MATH_BYTECODE)
      return contract_factory
  
  
  @pytest.fixture(scope="session")
  def emitter_contract_factory(web3):
      contract_factory = web3.eth.contract(abi=EMITTER_ABI, bytecode=EMITTER_BYTECODE)
      return contract_factory
  
subject: Add common factory fixtures to be shared across integration tests