| """An example unittest copied from python tutorial.""" |
| |
| import random |
| import unittest |
| import traceback |
| |
| class SequenceFunctionsTestCase(unittest.TestCase): |
| |
| def setUp(self): |
| #traceback.print_stack() |
| self.seq = range(10) |
| |
| def tearDown(self): |
| #traceback.print_stack() |
| pass |
| |
| 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)) |
| |
| def test_choice(self): |
| element = random.choice(self.seq) |
| self.assertTrue(element in self.seq) |
| |
| def test_sample(self): |
| 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() |
