gistfile1.py

#!/usr/bin/python
# -*- coding: utf-8 -*-

import unittest
from random import randrange


class TestShuffle(unittest.TestCase):

    def setUp(self):
        pass

    def testShuffle(self):
        base = range(10)
        self.assertNotEqual(base, shuffle(base))


def shuffle(array):
    result = array[:]
    for i in range(len(result) - 1):
        j = randrange(i + 1, len(result))
        result[i], result[j] = result[j], result[i]
    return result


def main():
    unittest.main()


if __name__ == '__main__':
    main()