mirror of
https://github.com/mozilla/gecko-dev.git
synced 2025-11-04 02:09:05 +02:00
350ed0cf8c
Differential Revision: https://phabricator.services.mozilla.com/D64170 --HG-- extra : moz-landing-system : lando
33 lines
1 KiB
Python
33 lines
1 KiB
Python
import unittest
|
|
|
|
import jsparagus.gen
|
|
from jsparagus import parse_pgen, parse_pgen_generated
|
|
|
|
|
|
class ParsePgenTestCase(unittest.TestCase):
|
|
def test_self(self):
|
|
import os
|
|
filename = os.path.join(os.path.dirname(parse_pgen.__file__), "..",
|
|
"pgen.pgen")
|
|
grammar = parse_pgen.load_grammar(filename)
|
|
self.maxDiff = None
|
|
pgen_grammar = parse_pgen.pgen_grammar
|
|
self.assertEqual(pgen_grammar.nonterminals, grammar.nonterminals)
|
|
self.assertEqual(pgen_grammar.variable_terminals,
|
|
grammar.variable_terminals)
|
|
self.assertEqual(pgen_grammar.goals(), grammar.goals())
|
|
|
|
with open(parse_pgen_generated.__file__) as f:
|
|
pre_generated = f.read()
|
|
|
|
import io
|
|
out = io.StringIO()
|
|
jsparagus.gen.generate_parser(out, grammar)
|
|
generated_from_file = out.getvalue()
|
|
|
|
self.maxDiff = None
|
|
self.assertEqual(pre_generated, generated_from_file)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|