| # -*- coding: utf-8 -*- |
| |
| |
| import unittest2 |
| from rsa._compat import b |
| from rsa.transform import int2bytes, old_int2bytes |
| |
| |
| class Test_integer_to_bytes(unittest2.TestCase): |
| def test_chunk_size(self): |
| self.assertEqual(int2bytes(123456789, 6), |
| b('\x00\x00\x07[\xcd\x15')) |
| self.assertEqual(int2bytes(123456789, 7), |
| b('\x00\x00\x00\x07[\xcd\x15')) |
| self.assertEqual(old_int2bytes(123456789, 6), |
| b('\x00\x00\x07[\xcd\x15')) |
| self.assertEqual(old_int2bytes(123456789, 7), |
| b('\x00\x00\x00\x07[\xcd\x15')) |
| |
| def test_raises_OverflowError_when_chunk_size_is_insufficient(self): |
| self.assertRaises(OverflowError, int2bytes, 123456789, 3) |
| self.assertRaises(OverflowError, int2bytes, 299999999999, 4) |
| self.assertRaises(OverflowError, old_int2bytes, 123456789, 3) |
| self.assertRaises(OverflowError, old_int2bytes, 299999999999, 4) |
| |
| def test_raises_ValueError_when_negative_integer(self): |
| self.assertRaises(ValueError, int2bytes, -1) |
| self.assertRaises(ValueError, old_int2bytes, -1) |
| |
| def test_raises_TypeError_when_not_integer(self): |
| self.assertRaises(TypeError, int2bytes, None) |
| self.assertRaises(TypeError, old_int2bytes, None) |