Staging
v0.5.1
v0.5.1
https://github.com/python/cpython
Tip revision: 86f5bf6be9f3d21ebdf1aa991927f56971342362 authored by Anthony Baxter on 17 August 2006, 00:38:04 UTC
Branching release25-maint. All further 2.5 releases (including the release candidates,
Branching release25-maint. All further 2.5 releases (including the release candidates,
Tip revision: 86f5bf6
test_xrange.py
# Python test set -- built-in functions
import test.test_support, unittest
import sys
import warnings
warnings.filterwarnings("ignore", "integer argument expected",
DeprecationWarning, "unittest")
class XrangeTest(unittest.TestCase):
def test_xrange(self):
self.assertEqual(list(xrange(3)), [0, 1, 2])
self.assertEqual(list(xrange(1, 5)), [1, 2, 3, 4])
self.assertEqual(list(xrange(0)), [])
self.assertEqual(list(xrange(-3)), [])
self.assertEqual(list(xrange(1, 10, 3)), [1, 4, 7])
self.assertEqual(list(xrange(5, -5, -3)), [5, 2, -1, -4])
a = 10
b = 100
c = 50
self.assertEqual(list(xrange(a, a+2)), [a, a+1])
self.assertEqual(list(xrange(a+2, a, -1L)), [a+2, a+1])
self.assertEqual(list(xrange(a+4, a, -2)), [a+4, a+2])
seq = list(xrange(a, b, c))
self.assert_(a in seq)
self.assert_(b not in seq)
self.assertEqual(len(seq), 2)
seq = list(xrange(b, a, -c))
self.assert_(b in seq)
self.assert_(a not in seq)
self.assertEqual(len(seq), 2)
seq = list(xrange(-a, -b, -c))
self.assert_(-a in seq)
self.assert_(-b not in seq)
self.assertEqual(len(seq), 2)
self.assertRaises(TypeError, xrange)
self.assertRaises(TypeError, xrange, 1, 2, 3, 4)
self.assertRaises(ValueError, xrange, 1, 2, 0)
self.assertRaises(OverflowError, xrange, 1e100, 1e101, 1e101)
self.assertRaises(TypeError, xrange, 0, "spam")
self.assertRaises(TypeError, xrange, 0, 42, "spam")
self.assertEqual(len(xrange(0, sys.maxint, sys.maxint-1)), 2)
self.assertRaises(OverflowError, xrange, -sys.maxint, sys.maxint)
self.assertRaises(OverflowError, xrange, 0, 2*sys.maxint)
r = xrange(-sys.maxint, sys.maxint, 2)
self.assertEqual(len(r), sys.maxint)
self.assertRaises(OverflowError, xrange, -sys.maxint-1, sys.maxint, 2)
def test_main():
test.test_support.run_unittest(XrangeTest)
if __name__ == "__main__":
test_main()