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from OpenSSL._util import exception_from_error_queue, lib
from .util import TestCase
class ErrorTests(TestCase):
"""
Tests for handling of certain OpenSSL error cases.
"""
def test_exception_from_error_queue_nonexistent_reason(self):
"""
:py:func:`exception_from_error_queue` raises ``ValueError`` when it
encounters an OpenSSL error code which does not have a reason string.
"""
lib.ERR_put_error(lib.ERR_LIB_EVP, 0, 1112, b"", 10)
exc = self.assertRaises(
ValueError, exception_from_error_queue, ValueError
)
self.assertEqual(exc.args[0][0][2], "")
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