Security analysis tool for EVM bytecode. Supports smart contracts built for Ethereum, Hedera, Quorum, Vechain, Roostock, Tron and other EVM-compatible blockchains.
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mythril/tests/instructions/basefee_test.py

39 lines
1.3 KiB

from mythril.disassembler.disassembly import Disassembly
from mythril.laser.ethereum.instructions import Instruction
from mythril.laser.ethereum.state.environment import Environment
from mythril.laser.ethereum.state.global_state import GlobalState
from mythril.laser.ethereum.state.machine_state import MachineState
from mythril.laser.ethereum.state.world_state import WorldState
from mythril.laser.ethereum.transaction.transaction_models import MessageCallTransaction
from mythril.laser.smt import symbol_factory
def test_basefee():
# Arrange
world_state = WorldState()
account = world_state.create_account(balance=10, address=101)
account.code = Disassembly("60606040")
environment = Environment(
account,
None,
None,
None,
None,
None,
basefee=symbol_factory.BitVecSym("gasfee", 256),
)
og_state = GlobalState(
world_state, environment, None, MachineState(gas_limit=8000000)
)
og_state.transaction_stack.append(
(MessageCallTransaction(world_state=WorldState(), gas_limit=8000000), None)
)
og_state.mstate.stack = []
instruction = Instruction("basefee", dynamic_loader=None)
# Act
new_state = instruction.evaluate(og_state)[0]
# Assert
assert new_state.mstate.stack == [symbol_factory.BitVecSym("gasfee", 256)]