def test_convert_ops_with_constant():
oplist, messages = convert_ops([SET(Token.R(1), Token.Sym("n"))], {"n": 100})
assert len(messages.errors) == 0
assert oplist == [
SETLO(Token.R(1), Token.Int(100)),
SETHI(Token.R(1), Token.Int(0)),
]
def test_substitute_label_with_other_op():
program = INC(Token.R(1), Token.Sym("N"))
labels = {"N": 10}
assert substitute_label(program, labels) == INC(Token.R(1), Token.Int(10))
def test_substitute_label_with_SETHI():
program = SETHI(Token.R(1), Token.Sym("N"))
labels = {"N": 10}
assert substitute_label(program, labels) == SETHI(Token.R(1),
Token.Int(10))
def test_get_labels_with_invalid_code(settings):
labels, messages = get_labels([CALL(Token.Sym("l"))], settings)
assert len(labels) == 0
assert len(messages.errors) == 0
def test_operation_length_of_CALL_with_label():
assert operation_length(CALL(Token.R(12), Token.Sym("l"))) == 3
def test_operation_length_of_register_branch_with_label():
assert operation_length(BNZ(Token.Sym("l"))) == 3
def branch_helper(vm, branchname):
op = name_to_class[branchname](Token.Sym("l"))
return op.should(vm)
def test_parse_label_starting_with_register_name():
program = valid("LABEL(R1_INIT)")
assert program == [LABEL(Token.Sym("R1_INIT"))]
def test_convert_ops_does_not_report_error_for_valid_relative_branch():
data = [INTEGER(Token.Int(1))] * 200
oplist, messages = convert_ops(data + [BRR(Token.Sym("l"))], {"l": 1})
assert len(messages.errors) == 0
assert oplist == data + [BRR(Token.Int(1))]
def test_convert_ops_reports_error_for_invalid_relative_branch():
oplist, messages = convert_ops([BRR(Token.Sym("l"))], {"l": 9000})
assert len(messages.errors) == 1
assert "too far" in messages.errors[0][0]