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svn+ssh://pythondev@svn.python.org/python/branches/p3yk ........ r55077 | guido.van.rossum | 2007-05-02 11:54:37 -0700 (Wed, 02 May 2007) | 2 lines Use the new print syntax, at least. ........ r55142 | fred.drake | 2007-05-04 21:27:30 -0700 (Fri, 04 May 2007) | 1 line remove old cruftiness ........ r55143 | fred.drake | 2007-05-04 21:52:16 -0700 (Fri, 04 May 2007) | 1 line make this work with the new Python ........ r55162 | neal.norwitz | 2007-05-06 22:29:18 -0700 (Sun, 06 May 2007) | 1 line Get asdl code gen working with Python 2.3. Should continue to work with 3.0 ........ r55164 | neal.norwitz | 2007-05-07 00:00:38 -0700 (Mon, 07 May 2007) | 1 line Verify checkins to p3yk (sic) branch go to 3000 list. ........ r55166 | neal.norwitz | 2007-05-07 00:12:35 -0700 (Mon, 07 May 2007) | 1 line Fix this test so it runs again by importing warnings_test properly. ........ r55167 | neal.norwitz | 2007-05-07 01:03:22 -0700 (Mon, 07 May 2007) | 8 lines So long xrange. range() now supports values that are outside -sys.maxint to sys.maxint. floats raise a TypeError. This has been sitting for a long time. It probably has some problems and needs cleanup. Objects/rangeobject.c now uses 4-space indents since it is almost completely new. ........ r55171 | guido.van.rossum | 2007-05-07 10:21:26 -0700 (Mon, 07 May 2007) | 4 lines Fix two tests that were previously depending on significant spaces at the end of a line (and before that on Python 2.x print behavior that has no exact equivalent in 3.0). ........
118 lines
3.4 KiB
Python
118 lines
3.4 KiB
Python
# tests for slice objects; in particular the indices method.
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import unittest
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from test import test_support
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from cPickle import loads, dumps
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import sys
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class SliceTest(unittest.TestCase):
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def test_constructor(self):
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self.assertRaises(TypeError, slice)
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self.assertRaises(TypeError, slice, 1, 2, 3, 4)
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def test_repr(self):
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self.assertEqual(repr(slice(1, 2, 3)), "slice(1, 2, 3)")
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def test_hash(self):
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# Verify clearing of SF bug #800796
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self.assertRaises(TypeError, hash, slice(5))
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self.assertRaises(TypeError, slice(5).__hash__)
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def test_cmp(self):
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s1 = slice(1, 2, 3)
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s2 = slice(1, 2, 3)
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s3 = slice(1, 2, 4)
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self.assertEqual(s1, s2)
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self.assertNotEqual(s1, s3)
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class Exc(Exception):
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pass
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class BadCmp(object):
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def __eq__(self, other):
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raise Exc
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s1 = slice(BadCmp())
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s2 = slice(BadCmp())
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self.assertEqual(s1, s1)
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self.assertRaises(Exc, lambda: s1 == s2)
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s1 = slice(1, BadCmp())
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s2 = slice(1, BadCmp())
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self.assertEqual(s1, s1)
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self.assertRaises(Exc, lambda: s1 == s2)
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s1 = slice(1, 2, BadCmp())
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s2 = slice(1, 2, BadCmp())
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self.assertEqual(s1, s1)
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self.assertRaises(Exc, lambda: s1 == s2)
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def test_members(self):
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s = slice(1)
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self.assertEqual(s.start, None)
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self.assertEqual(s.stop, 1)
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self.assertEqual(s.step, None)
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s = slice(1, 2)
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self.assertEqual(s.start, 1)
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self.assertEqual(s.stop, 2)
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self.assertEqual(s.step, None)
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s = slice(1, 2, 3)
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self.assertEqual(s.start, 1)
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self.assertEqual(s.stop, 2)
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self.assertEqual(s.step, 3)
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class AnyClass:
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pass
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obj = AnyClass()
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s = slice(obj)
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self.assert_(s.stop is obj)
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def test_indices(self):
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self.assertEqual(slice(None ).indices(10), (0, 10, 1))
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self.assertEqual(slice(None, None, 2).indices(10), (0, 10, 2))
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self.assertEqual(slice(1, None, 2).indices(10), (1, 10, 2))
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self.assertEqual(slice(None, None, -1).indices(10), (9, -1, -1))
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self.assertEqual(slice(None, None, -2).indices(10), (9, -1, -2))
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self.assertEqual(slice(3, None, -2).indices(10), (3, -1, -2))
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self.assertEqual(
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slice(-100, 100 ).indices(10),
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slice(None).indices(10)
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)
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self.assertEqual(
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slice(100, -100, -1).indices(10),
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slice(None, None, -1).indices(10)
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)
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self.assertEqual(slice(-100, 100, 2).indices(10), (0, 10, 2))
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self.assertEqual(list(range(10))[::sys.maxint - 1], [0])
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self.assertRaises(OverflowError, slice(None).indices, 1<<100)
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def test_setslice_without_getslice(self):
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tmp = []
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class X(object):
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def __setslice__(self, i, j, k):
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tmp.append((i, j, k))
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x = X()
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x[1:2] = 42
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self.assertEquals(tmp, [(1, 2, 42)])
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def test_pickle(self):
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s = slice(10, 20, 3)
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for protocol in (0,1,2):
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t = loads(dumps(s, protocol))
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self.assertEqual(s, t)
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self.assertEqual(s.indices(15), t.indices(15))
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self.assertNotEqual(id(s), id(t))
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def test_main():
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test_support.run_unittest(SliceTest)
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if __name__ == "__main__":
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test_main()
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