def test_parse_tokens(self):
other_vals = parsy_test_item(lambda i: i not in [self.START, self.STOP],
"not START/STOP")
bracketed = match_item(self.START) >> other_vals.many() << match_item(self.STOP)
stream = [self.START, "hello", 1, 2, "goodbye", self.STOP]
result = bracketed.parse(stream)
self.assertEqual(result, ["hello", 1, 2, "goodbye"])
def test_test_item(self):
start_stop = parsy_test_item(lambda i: i in [self.START, self.STOP],
"START/STOP")
self.assertEqual(start_stop.parse([self.START]), self.START)
self.assertEqual(start_stop.parse([self.STOP]), self.STOP)
with self.assertRaises(ParseError) as err:
start_stop.many().parse([self.START, "hello"])
ex = err.exception
self.assertEqual(str(ex), "expected one of 'EOF', 'START/STOP' at 1")
self.assertEqual(ex.expected, {'EOF', 'START/STOP'})
self.assertEqual(ex.index, 1)