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#!/usr/bin/env python import random import unittest class TestSequenceFunctions(unittest.TestCase): def setUp(self): self.seq = range(10) def test_shuffle(self): # make sure the shuffled sequence does not lose any elements random.shuffle(self.seq) self.seq.sort() self.assertEqual(self.seq, range(10)) # should raise an exception for an immutable sequence self.assertRaises(TypeError, random.shuffle, (1,2,3)) def test_choice(self): element = random.choice(self.seq) self.assertTrue(element in self.seq) def test_sample(self): with self.assertRaises(ValueError): random.sample(self.seq, 20) for element in random.sample(self.seq, 5): self.assertTrue(element in self.seq) if __name__ == '__main__': unittest.main() ''' ... ---------------------------------------------------------------------- Ran 3 tests in 0.000s OK '''