diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/test_common.py | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/tests/test_common.py b/tests/test_common.py index 453dcc8..ef32f61 100644 --- a/tests/test_common.py +++ b/tests/test_common.py @@ -18,7 +18,7 @@ import unittest import struct from rsa._compat import byte, b -from rsa.common import byte_size, bit_size, _bit_size +from rsa.common import byte_size, bit_size, _bit_size, inverse class TestByte(unittest.TestCase): @@ -75,3 +75,13 @@ class TestBitSize(unittest.TestCase): self.assertEqual(_bit_size(1 << 1024), 1025) self.assertEqual(_bit_size((1 << 1024) + 1), 1025) self.assertEqual(_bit_size((1 << 1024) - 1), 1024) + + +class TestInverse(unittest.TestCase): + def test_normal(self): + self.assertEqual(3, inverse(7, 4)) + self.assertEqual(9, inverse(5, 11)) + + def test_not_relprime(self): + self.assertRaises(ValueError, inverse, 4, 8) + self.assertRaises(ValueError, inverse, 25, 5) |