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Diffstat (limited to 'lib/Python/Lib/Crypto/SelfTest/Random/test_random.py')
-rw-r--r-- | lib/Python/Lib/Crypto/SelfTest/Random/test_random.py | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/lib/Python/Lib/Crypto/SelfTest/Random/test_random.py b/lib/Python/Lib/Crypto/SelfTest/Random/test_random.py new file mode 100644 index 000000000..f9ffc663a --- /dev/null +++ b/lib/Python/Lib/Crypto/SelfTest/Random/test_random.py @@ -0,0 +1,171 @@ +# -*- coding: utf-8 -*- +# +# SelfTest/Util/test_generic.py: Self-test for the Crypto.Random.new() function +# +# Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net> +# +# =================================================================== +# The contents of this file are dedicated to the public domain. To +# the extent that dedication to the public domain is not available, +# everyone is granted a worldwide, perpetual, royalty-free, +# non-exclusive license to exercise all rights associated with the +# contents of this file for any purpose whatsoever. +# No rights are reserved. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS +# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +# SOFTWARE. +# =================================================================== + +"""Self-test suite for Crypto.Random.new()""" + +__revision__ = "$Id$" + +import unittest +import sys +if sys.version_info[0] == 2 and sys.version_info[1] == 1: + from Crypto.Util.py21compat import * +from Crypto.Util.py3compat import * + +class SimpleTest(unittest.TestCase): + def runTest(self): + """Crypto.Random.new()""" + # Import the Random module and try to use it + from Crypto import Random + randobj = Random.new() + x = randobj.read(16) + y = randobj.read(16) + self.assertNotEqual(x, y) + z = Random.get_random_bytes(16) + self.assertNotEqual(x, z) + self.assertNotEqual(y, z) + # Test the Random.random module, which + # implements a subset of Python's random API + # Not implemented: + # seed(), getstate(), setstate(), jumpahead() + # random(), uniform(), triangular(), betavariate() + # expovariate(), gammavariate(), gauss(), + # longnormvariate(), normalvariate(), + # vonmisesvariate(), paretovariate() + # weibullvariate() + # WichmannHill(), whseed(), SystemRandom() + from Crypto.Random import random + x = random.getrandbits(16*8) + y = random.getrandbits(16*8) + self.assertNotEqual(x, y) + # Test randrange + if x>y: + start = y + stop = x + else: + start = x + stop = y + for step in range(1,10): + x = random.randrange(start,stop,step) + y = random.randrange(start,stop,step) + self.assertNotEqual(x, y) + self.assertEqual(start <= x < stop, True) + self.assertEqual(start <= y < stop, True) + self.assertEqual((x - start) % step, 0) + self.assertEqual((y - start) % step, 0) + for i in range(10): + self.assertEqual(random.randrange(1,2), 1) + self.assertRaises(ValueError, random.randrange, start, start) + self.assertRaises(ValueError, random.randrange, stop, start, step) + self.assertRaises(TypeError, random.randrange, start, stop, step, step) + self.assertRaises(TypeError, random.randrange, start, stop, "1") + self.assertRaises(TypeError, random.randrange, "1", stop, step) + self.assertRaises(TypeError, random.randrange, 1, "2", step) + self.assertRaises(ValueError, random.randrange, start, stop, 0) + # Test randint + x = random.randint(start,stop) + y = random.randint(start,stop) + self.assertNotEqual(x, y) + self.assertEqual(start <= x <= stop, True) + self.assertEqual(start <= y <= stop, True) + for i in range(10): + self.assertEqual(random.randint(1,1), 1) + self.assertRaises(ValueError, random.randint, stop, start) + self.assertRaises(TypeError, random.randint, start, stop, step) + self.assertRaises(TypeError, random.randint, "1", stop) + self.assertRaises(TypeError, random.randint, 1, "2") + # Test choice + seq = range(10000) + x = random.choice(seq) + y = random.choice(seq) + self.assertNotEqual(x, y) + self.assertEqual(x in seq, True) + self.assertEqual(y in seq, True) + for i in range(10): + self.assertEqual(random.choice((1,2,3)) in (1,2,3), True) + self.assertEqual(random.choice([1,2,3]) in [1,2,3], True) + if sys.version_info[0] is 3: + self.assertEqual(random.choice(bytearray(b('123'))) in bytearray(b('123')), True) + self.assertEqual(1, random.choice([1])) + self.assertRaises(IndexError, random.choice, []) + self.assertRaises(TypeError, random.choice, 1) + # Test shuffle. Lacks random parameter to specify function. + # Make copies of seq + seq = range(500) + x = list(seq) + y = list(seq) + random.shuffle(x) + random.shuffle(y) + self.assertNotEqual(x, y) + self.assertEqual(len(seq), len(x)) + self.assertEqual(len(seq), len(y)) + for i in range(len(seq)): + self.assertEqual(x[i] in seq, True) + self.assertEqual(y[i] in seq, True) + self.assertEqual(seq[i] in x, True) + self.assertEqual(seq[i] in y, True) + z = [1] + random.shuffle(z) + self.assertEqual(z, [1]) + if sys.version_info[0] == 3: + z = bytearray(b('12')) + random.shuffle(z) + self.assertEqual(b('1') in z, True) + self.assertRaises(TypeError, random.shuffle, b('12')) + self.assertRaises(TypeError, random.shuffle, 1) + self.assertRaises(TypeError, random.shuffle, "1") + self.assertRaises(TypeError, random.shuffle, (1,2)) + # 2to3 wraps a list() around it, alas - but I want to shoot + # myself in the foot here! :D + # if sys.version_info[0] == 3: + # self.assertRaises(TypeError, random.shuffle, range(3)) + # Test sample + x = random.sample(seq, 20) + y = random.sample(seq, 20) + self.assertNotEqual(x, y) + for i in range(20): + self.assertEqual(x[i] in seq, True) + self.assertEqual(y[i] in seq, True) + z = random.sample([1], 1) + self.assertEqual(z, [1]) + z = random.sample((1,2,3), 1) + self.assertEqual(z[0] in (1,2,3), True) + z = random.sample("123", 1) + self.assertEqual(z[0] in "123", True) + z = random.sample(range(3), 1) + self.assertEqual(z[0] in range(3), True) + if sys.version_info[0] == 3: + z = random.sample(b("123"), 1) + self.assertEqual(z[0] in b("123"), True) + z = random.sample(bytearray(b("123")), 1) + self.assertEqual(z[0] in bytearray(b("123")), True) + self.assertRaises(TypeError, random.sample, 1) + +def get_tests(config={}): + return [SimpleTest()] + +if __name__ == '__main__': + suite = lambda: unittest.TestSuite(get_tests()) + unittest.main(defaultTest='suite') + +# vim:set ts=4 sw=4 sts=4 expandtab: |