| 1 | # Python test set -- built-in functions
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| 2 |
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| 3 | import test.test_support, unittest
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| 4 | import sys
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| 5 |
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| 6 | import warnings
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| 7 | warnings.filterwarnings("ignore", "integer argument expected",
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| 8 | DeprecationWarning, "unittest")
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| 9 |
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| 10 | class XrangeTest(unittest.TestCase):
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| 11 | def test_xrange(self):
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| 12 | self.assertEqual(list(xrange(3)), [0, 1, 2])
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| 13 | self.assertEqual(list(xrange(1, 5)), [1, 2, 3, 4])
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| 14 | self.assertEqual(list(xrange(0)), [])
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| 15 | self.assertEqual(list(xrange(-3)), [])
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| 16 | self.assertEqual(list(xrange(1, 10, 3)), [1, 4, 7])
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| 17 | self.assertEqual(list(xrange(5, -5, -3)), [5, 2, -1, -4])
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| 18 |
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| 19 | a = 10
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| 20 | b = 100
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| 21 | c = 50
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| 22 |
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| 23 | self.assertEqual(list(xrange(a, a+2)), [a, a+1])
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| 24 | self.assertEqual(list(xrange(a+2, a, -1L)), [a+2, a+1])
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| 25 | self.assertEqual(list(xrange(a+4, a, -2)), [a+4, a+2])
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| 26 |
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| 27 | seq = list(xrange(a, b, c))
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| 28 | self.assert_(a in seq)
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| 29 | self.assert_(b not in seq)
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| 30 | self.assertEqual(len(seq), 2)
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| 31 |
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| 32 | seq = list(xrange(b, a, -c))
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| 33 | self.assert_(b in seq)
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| 34 | self.assert_(a not in seq)
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| 35 | self.assertEqual(len(seq), 2)
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| 36 |
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| 37 | seq = list(xrange(-a, -b, -c))
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| 38 | self.assert_(-a in seq)
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| 39 | self.assert_(-b not in seq)
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| 40 | self.assertEqual(len(seq), 2)
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| 41 |
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| 42 | self.assertRaises(TypeError, xrange)
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| 43 | self.assertRaises(TypeError, xrange, 1, 2, 3, 4)
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| 44 | self.assertRaises(ValueError, xrange, 1, 2, 0)
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| 45 |
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| 46 | self.assertRaises(OverflowError, xrange, 1e100, 1e101, 1e101)
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| 47 |
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| 48 | self.assertRaises(TypeError, xrange, 0, "spam")
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| 49 | self.assertRaises(TypeError, xrange, 0, 42, "spam")
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| 50 |
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| 51 | self.assertEqual(len(xrange(0, sys.maxint, sys.maxint-1)), 2)
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| 52 |
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| 53 | self.assertRaises(OverflowError, xrange, -sys.maxint, sys.maxint)
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| 54 | self.assertRaises(OverflowError, xrange, 0, 2*sys.maxint)
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| 55 |
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| 56 | r = xrange(-sys.maxint, sys.maxint, 2)
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| 57 | self.assertEqual(len(r), sys.maxint)
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| 58 | self.assertRaises(OverflowError, xrange, -sys.maxint-1, sys.maxint, 2)
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| 59 |
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| 60 | def test_main():
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| 61 | test.test_support.run_unittest(XrangeTest)
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| 62 |
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| 63 | if __name__ == "__main__":
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| 64 | test_main()
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