def test_fails_to_parse_ll2(self):
e = self.assertParseFailure(
combinators.try_(combinators.sequence(
primitives.any_, primitives.any_,
primitives.error({"error!"}))),
"test")
self.assertEqual({"error!"}, e.expected)
def test_parses(self):
self.assertParse(combinators.try_(primitives.match(lambda c: c == "h")),
"h", "ello", "hello")
def test_fails_to_parse(self):
e = self.assertParseFailure(
combinators.try_(primitives.error({"error!"})), "hello")
self.assertEqual({"error!"}, e.expected)