def test_chain_current_file_number() -> None:
chain = Chain()
assert chain.current_file_number == 0
chain.set_current_file_number(chain.current_file_number + 1)
assert chain.current_file_number == 1
chain.set_current_file_number(chain.current_file_number + 1)
assert chain.current_file_number == 2
chain.set_current_file_number(9999999)
assert chain.current_file_number == 9999999
def test_chain_height():
chain = Chain()
assert chain.tip == 0
chain.set_tip(chain.tip + 1)
assert chain.tip == 1
chain.set_tip(chain.tip + 1)
assert chain.tip == 2
chain.set_tip(9999999)
assert chain.tip == 9999999
def test_get_blk_file_size() -> None:
chain = Chain()
Config.MAX_FILE_SIZE = 1000 # Override the max file size for the test
path = f"{Config.BLOCKS_DIR}testblock"
f = open(path, "a")
f.write("".join("x" for _ in range(100)))
f.close()
assert get_blk_file_size("testblock") == 100
def test_block_save():
coinbase_transaction_1 = Transaction(
chain=1,
nonce=1,
fee=0,
value=50000,
to_address="1H7NtUENrEbwSVm52fHePzBnu4W3bCqimP",
unlock_sig=Config.COINBASE_UNLOCK_SIGNATURE,
)
block1 = Block(
version=1,
height=0,
miner=WALLET_1["address"],
prev_block_hash="0" * 64,
timestamp=1_623_168_442,
bits=b"\x1d\x0f\xff\xff",
nonce=12308683,
txns=[coinbase_transaction_1],
)
print(block1.json())
coinbase_transaction_2 = Transaction(
chain=1,
nonce=2,
fee=0,
value=50000,
to_address="1H7NtUENrEbwSVm52fHePzBnu4W3bCqimP",
unlock_sig=Config.COINBASE_UNLOCK_SIGNATURE,
)
block2 = Block(
version=1,
height=1,
miner=WALLET_1["address"],
prev_block_hash=block1.id,
timestamp=1_623_168_442,
bits=b"\x1d\x0f\xff\xff",
nonce=12308683,
txns=[coinbase_transaction_2],
)
print(block2.json())
chain = Chain()
assert chain.tip == 0
block1.save()
assert chain.tip == 0
block2.save()
assert chain.tip == 1
assert False
def test_chain_current_file_number_increase_when_file_surpases_the_max_size_allowed() -> None:
chain = Chain()
Config.MAX_FILE_SIZE = 1000 # Override the max file size for the test
current_file_number = chain.current_file_number
current_file = get_current_blk_file(current_file_number)
assert current_file_number == 0
path = f"{Config.BLOCKS_DIR}{current_file}"
content_length = Config.MAX_FILE_SIZE + 100 # Surpass
f = open(path, "a")
f.write("".join("x" for _ in range(content_length)))
f.close()
actual_file_number = chain.current_file_number
assert actual_file_number == 1
def test_accounts() -> None:
chain = Chain()
assert chain.get_account("LVx7PJDKumHEKtWbZVwg9MxLJmZMf7bdGx") == None
chain.set_account("LVx7PJDKumHEKtWbZVwg9MxLJmZMf7bdGx", {"balance": 100})
assert chain.get_account("LVx7PJDKumHEKtWbZVwg9MxLJmZMf7bdGx") == {
"balance": 100
}
chain.set_account(
"LVx7PJDKumHEKtWbZVwg9MxLJmZMf7bdGx",
{"balance": 100, "committed": 5000},
)
assert chain.get_account("LVx7PJDKumHEKtWbZVwg9MxLJmZMf7bdGx") == {
"balance": 100,
"committed": 5000,
}
chain.set_account(
"LXs5GsdMxWtCcXZ4RhZHdKpLs7c71q18eM",
{"balance": 0, "committed": 10000},
)
assert chain.get_account("LXs5GsdMxWtCcXZ4RhZHdKpLs7c71q18eM") == {
"balance": 0,
"committed": 10000,
}
def test_block_file_numbers() -> None:
chain = Chain()
assert chain.get_block_file_number(100) == None
chain.set_block_file_number(100, 1)
assert chain.get_block_file_number(100) == 1
chain.set_block_file_number(100, 10)
chain.set_block_file_number(653020, 250)
assert chain.get_block_file_number(100) == 10
assert chain.get_block_file_number(653020) == 250
def test_full_blockchain():
START_TIMESTAMP = 1639159886
chain = Chain()
assert chain.tip == 0
block1 = Block(
version=1,
height=0,
prev_block_hash="0" * 64,
miner=WALLET_1["address"],
timestamp=START_TIMESTAMP,
bits=Config.STARTING_DIFFICULTY,
nonce=156369,
txns=[],
)
print("\nBlock 1 \n" + json.dumps(block1.json(), indent=4))
block1.save()
# Check chain Height is updated
assert chain.tip == 0
# Check block file number is updated
assert chain.get_block_file_number(0) == 0
# Check that the block file contains one block
assert len(Block.get_blocks_from_file(0)) == 1
# Check that the block retrieved from the files is the same
assert Block.get(0).id == block1.id
assert Block.get(0).serialize() == block1.serialize()
# TODO: Check miner balance
# TODO: Check file content
# TODO: Check stacking
# Transaction to stack 15 Luracoins
transaction_1 = Transaction(
chain=1,
nonce=1,
fee=0,
value=Config.LURASHIS_PER_COIN * 15,
to_address=Config.STAKING_ADDRESS,
)
transaction_1.sign(unhexlify(WALLET_1["private_key"]))
assert transaction_1.validate() == True
block2 = Block(
version=1,
height=1,
prev_block_hash=block1.id,
miner=WALLET_1["address"],
timestamp=START_TIMESTAMP + (3*60), # 3 minutes
bits=Config.STARTING_DIFFICULTY,
nonce=4358788,
txns=[transaction_1],
)
print("\nBlock 2 \n" + json.dumps(block2.json(), indent=4))
block2.save()
# Check chain Height is updated
assert chain.tip == 1
# Check block file number is updated
assert chain.get_block_file_number(0) == 0
# Check that the block file contains two blocks
assert len(Block.get_blocks_from_file(0)) == 2
# Check that the block retrieved from the files is the same
assert Block.get(1).id == block2.id
assert Block.get(1).serialize() == block2.serialize()
# TODO: Check miner balance
# TODO: Check file content
# TODO: Check stacking
assert False