| Yesudeep Mangalapilly | c19a21b | 2011-08-11 04:48:11 +0530 | [diff] [blame^] | 1 | # -*- coding: utf-8 -*- |
| 2 | |
| 3 | |
| 4 | import unittest2 |
| 5 | from rsa._compat import b |
| 6 | from rsa.transform import int2bytes |
| 7 | |
| 8 | |
| 9 | class Test_integer_to_bytes(unittest2.TestCase): |
| 10 | def test_chunk_size(self): |
| 11 | self.assertEqual(int2bytes(123456789, 6), |
| 12 | b('\x00\x00\x07[\xcd\x15')) |
| 13 | self.assertEqual(int2bytes(123456789, 7), |
| 14 | b('\x00\x00\x00\x07[\xcd\x15')) |
| 15 | |
| 16 | def test_raises_OverflowError_when_chunk_size_is_insufficient(self): |
| 17 | self.assertRaises(OverflowError, int2bytes, 123456789, 3) |
| 18 | self.assertRaises(OverflowError, int2bytes, 299999999999, 4) |
| 19 | |
| 20 | def test_raises_ValueError_when_negative_integer(self): |
| 21 | self.assertRaises(ValueError, int2bytes, -1) |
| 22 | |
| 23 | def test_raises_TypeError_when_not_integer(self): |
| 24 | self.assertRaises(TypeError, int2bytes, None) |