mirror of https://github.com/ConsenSys/mythril
blockchainethereumsmart-contractssoliditysecurityprogram-analysissecurity-analysissymbolic-execution
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48 lines
1.6 KiB
48 lines
1.6 KiB
import pytest
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from mythril.disassembler.disassembly import Disassembly
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from mythril.laser.ethereum.instructions import Instruction
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from mythril.laser.ethereum.state.environment import Environment
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from mythril.laser.ethereum.state.global_state import GlobalState
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from mythril.laser.ethereum.state.machine_state import MachineState
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from mythril.laser.ethereum.state.world_state import WorldState
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from mythril.laser.ethereum.transaction.transaction_models import MessageCallTransaction
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from mythril.laser.smt import simplify, symbol_factory
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def get_state(input):
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world_state = WorldState()
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account = world_state.create_account(balance=10, address=101)
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account.code = Disassembly(input)
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environment = Environment(account, None, None, None, None, None, None)
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state = GlobalState(world_state, environment, None, MachineState(gas_limit=8000000))
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state.transaction_stack.append(
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(MessageCallTransaction(world_state=WorldState(), gas_limit=8000000), None)
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)
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return state
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BVV = symbol_factory.BitVecVal
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BV = symbol_factory.BitVecSym
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test_data = [
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("5F", 0), # Successful execution, stack consists of a single item, set to zero
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(
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"5F" * 1024,
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0,
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), # Successful execution, stack consists of 1024 items, all set to zero
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]
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@pytest.mark.parametrize("inputs,output", test_data)
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def test_push0(inputs, output):
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# Arrange
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state = get_state(inputs)
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instruction = Instruction("push", dynamic_loader=None)
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# Act
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new_state = instruction.evaluate(state)[0]
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# Assert
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assert simplify(new_state.mstate.stack[-1]) == output
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