def test_parse_with_many0_and_unnamed_fields(self):
# -- ENSURE: Cardinality.zero_or_more.group_count is correct
# REQUIRES: ParserExt := parse_type.Parser with group_count support
parse_many0_numbers = TypeBuilder.with_many0(parse_number)
parse_many0_numbers.name = "Number*"
type_dict = build_type_dict([parse_many0_numbers, parse_number])
schema = "Numbers: {:Number*} {:Number}"
parser = ParserExt(schema, type_dict)
# -- CASE: Optional numbers are present
result = parser.parse("Numbers: 1, 2, 3 42")
expected = ([1, 2, 3], 42)
self.assertIsNotNone(result)
self.assertEqual(result.fixed, tuple(expected))
# -- CASE: Optional numbers are missing := EMPTY-LIST
result = parser.parse("Numbers: 43")
expected = ([ ], 43)
self.assertIsNotNone(result)
self.assertEqual(result.fixed, tuple(expected))
def test_with_many0(self):
# -- ALIAS FOR: one_or_more
parse_numbers = TypeBuilder.with_many0(parse_number)
self.check_parse_number_with_many0(parse_numbers)
