def test_last_block_hash():
"""
Test function for last block hash
"""
# Setup
mock_ledger = Ledger('monies')
mock_miner = Miner('Mock', mock_ledger)
mock_header = {'hdr': 'foo'}
mock_ledger.block_count = 1
mock_ledger.all_transactions.append(mock_header)
mock_message = mock_ledger.all_transactions[0]['hdr']
mock_nonce_attempts = 1000000
mock_difficulty = 4
mock_hash = cryptohash(mock_message, mock_nonce_attempts, mock_difficulty)
# Assert
assert mock_miner.last_block_hash() == mock_hash
