def test_no_symbol_table(self):
document = dedent("""
from pants_test.engine.test_parsers import Bob
nancy = Bob(
hobbies=[1, 2, 3]
)
""")
results = parse(parsers.PythonAssignmentsParser(parser.EmptyTable()), document)
self.assertEqual([Bob(name='nancy', hobbies=[1, 2, 3])], results)
# No symbol table was used so no `type_alias` plumbing can be expected.
self.assertNotIn('type_alias', results[0]._asdict())
def parse(self, document, symbol_table=None, **kwargs):
symbol_table = symbol_table or parser.EmptyTable()
return parse(parsers.JsonParser(symbol_table), document, **kwargs)
def test_error_presentation(self):
document = dedent("""
# An example with several Bobs.
# One with hobbies.
{
"type_alias": "pants_test.engine.test_parsers.Bob",
# And internal comment and blank lines.
"hobbies": [1, 2, 3]} {
# This comment is inside an empty object that started on the prior line!
}
# Another that is imaginary aged.
{
"type_alias": "pants_test.engine.test_parsers.Bob",
"age": 42i,
"four": 1,
"five": 1,
"six": 1,
"seven": 1,
"eight": 1,
"nine": 1
}
""").strip()
filepath = '/dev/null'
with self.assertRaises(parser.ParseError) as exc:
parsers.JsonParser(parser.EmptyTable()).parse(filepath, document)
# Strip trailing whitespace from the message since our expected literal below will have
# trailing ws stripped via editors and code reviews calling for it.
actual_lines = [
line.rstrip() for line in str(exc.exception).splitlines()
]
# This message from the json stdlib varies between python releases, so fuzz the match a bit.
assertRegex(
self, actual_lines[0],
r'Expecting (?:,|\',\'|",") delimiter: line 3 column 12 \(char 67\)'
)
self.assertEqual(
dedent("""
In document at {filepath}:
# An example with several Bobs.
# One with hobbies.
{{
"type_alias": "pants_test.engine.test_parsers.Bob",
# And internal comment and blank lines.
"hobbies": [1, 2, 3]}} {{
# This comment is inside an empty object that started on the prior line!
}}
# Another that is imaginary aged.
1: {{
2: "type_alias": "pants_test.engine.test_parsers.Bob",
3: "age": 42i,
4: "four": 1,
5: "five": 1,
6: "six": 1,
7: "seven": 1,
8: "eight": 1,
9: "nine": 1
10: }}
""".format(filepath=filepath)).strip(), '\n'.join(actual_lines[1:]))