import unittest
from bridge import protect, restore


class PlaceholderTests(unittest.TestCase):
    def test_android_tokens_round_trip(self):
        source = '确定删除这%1$d个文件吗?\\n<b>警告</b>'
        protected, tokens = protect(source)
        self.assertNotIn("%1$d", protected)
        self.assertEqual(restore(protected, tokens), source)


if __name__ == "__main__":
    unittest.main()