def test_symbolic_call_storage_to(mocker):
# arrange
address = "0x10"
active_account = Account(address)
environment = Environment(active_account, None, None, None, None, None)
state = GlobalState(None, environment)
state.mstate.memory = ["placeholder", "calldata_bling_0"]
node = Node("example")
node.contract_name = "the contract name"
node.function_name = "the function name"
to = Variable("storage_1", VarType.SYMBOLIC)
call = Call(node, state, None, "Type: ", to, None)
mocker.patch.object(SymExecWrapper, "__init__", lambda x, y: None)
statespace = SymExecWrapper(1)
mocker.patch.object(statespace, 'find_storage_write')
statespace.find_storage_write.return_value = "Function name"
# act
issues = _symbolic_call(call, state, address, statespace)
# assert
issue = issues[0]
assert issue.address == address
assert issue.contract == node.contract_name
assert issue.function == node.function_name
assert issue.title == 'Type: to a user-supplied address'
assert issue.type == 'Informational'
assert issue.description == 'This contract delegates execution to a contract address in storage slot 1.' \
' This storage slot can be written to by calling the function `Function name`. ' \
'Be aware that the called contract gets unrestricted access to this contract\'s state.'
def test_symbolic_call_calldata_to(mocker):
# arrange
address = "0x10"
state = GlobalState(None, None, None)
state.mstate.memory = ["placeholder", "calldata_bling_0"]
node = Node("example")
node.contract_name = "the contract name"
node.function_name = "the function name"
to = Variable("calldata", VarType.SYMBOLIC)
call = Call(node, state, None, "Type: ", to, None)
mocker.patch.object(SymExecWrapper, "__init__", lambda x, y: None)
statespace = SymExecWrapper(1)
mocker.patch.object(statespace, "find_storage_write")
statespace.find_storage_write.return_value = "Function name"
# act
issues = _symbolic_call(call, state, address, statespace)
# assert
issue = issues[0]
assert issue.address == address
assert issue.contract == node.contract_name
assert issue.function == node.function_name
assert issue.title == "Type: to a user-supplied address"
assert issue.type == "Informational"
assert (
issue.description ==
"This contract delegates execution to a contract address obtained from calldata. "
"Be aware that the called contract gets unrestricted access to this contract's state."
)