4710c53dca
These files are a subset of the python-2.7.2.tgz distribution from python.org. Changed files from PyMod-2.7.2 have been copied into the corresponding directories of this tree, replacing the original files in the distribution. Signed-off-by: daryl.mcdaniel@intel.com git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13197 6f19259b-4bc3-4df7-8a09-765794883524
681 lines
24 KiB
Python
681 lines
24 KiB
Python
import sys
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import os
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import unittest
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import itertools
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import time
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from array import array
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from weakref import proxy
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try:
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import threading
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except ImportError:
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threading = None
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from test import test_support
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from test.test_support import TESTFN, run_unittest
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from UserList import UserList
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class AutoFileTests(unittest.TestCase):
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# file tests for which a test file is automatically set up
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def setUp(self):
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self.f = open(TESTFN, 'wb')
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def tearDown(self):
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if self.f:
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self.f.close()
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os.remove(TESTFN)
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def testWeakRefs(self):
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# verify weak references
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p = proxy(self.f)
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p.write('teststring')
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self.assertEqual(self.f.tell(), p.tell())
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self.f.close()
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self.f = None
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self.assertRaises(ReferenceError, getattr, p, 'tell')
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def testAttributes(self):
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# verify expected attributes exist
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f = self.f
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with test_support.check_py3k_warnings():
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softspace = f.softspace
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f.name # merely shouldn't blow up
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f.mode # ditto
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f.closed # ditto
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with test_support.check_py3k_warnings():
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# verify softspace is writable
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f.softspace = softspace # merely shouldn't blow up
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# verify the others aren't
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for attr in 'name', 'mode', 'closed':
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self.assertRaises((AttributeError, TypeError), setattr, f, attr, 'oops')
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def testReadinto(self):
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# verify readinto
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self.f.write('12')
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self.f.close()
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a = array('c', 'x'*10)
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self.f = open(TESTFN, 'rb')
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n = self.f.readinto(a)
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self.assertEqual('12', a.tostring()[:n])
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def testWritelinesUserList(self):
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# verify writelines with instance sequence
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l = UserList(['1', '2'])
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self.f.writelines(l)
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self.f.close()
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self.f = open(TESTFN, 'rb')
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buf = self.f.read()
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self.assertEqual(buf, '12')
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def testWritelinesIntegers(self):
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# verify writelines with integers
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self.assertRaises(TypeError, self.f.writelines, [1, 2, 3])
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def testWritelinesIntegersUserList(self):
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# verify writelines with integers in UserList
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l = UserList([1,2,3])
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self.assertRaises(TypeError, self.f.writelines, l)
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def testWritelinesNonString(self):
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# verify writelines with non-string object
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class NonString:
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pass
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self.assertRaises(TypeError, self.f.writelines,
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[NonString(), NonString()])
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def testRepr(self):
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# verify repr works
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self.assertTrue(repr(self.f).startswith("<open file '" + TESTFN))
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def testErrors(self):
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self.f.close()
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self.f = open(TESTFN, 'rb')
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f = self.f
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self.assertEqual(f.name, TESTFN)
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self.assertTrue(not f.isatty())
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self.assertTrue(not f.closed)
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self.assertRaises(TypeError, f.readinto, "")
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f.close()
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self.assertTrue(f.closed)
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def testMethods(self):
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methods = ['fileno', 'flush', 'isatty', 'next', 'read', 'readinto',
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'readline', 'readlines', 'seek', 'tell', 'truncate',
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'write', '__iter__']
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deprecated_methods = ['xreadlines']
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if sys.platform.startswith('atheos'):
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methods.remove('truncate')
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# __exit__ should close the file
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self.f.__exit__(None, None, None)
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self.assertTrue(self.f.closed)
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for methodname in methods:
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method = getattr(self.f, methodname)
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# should raise on closed file
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self.assertRaises(ValueError, method)
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with test_support.check_py3k_warnings():
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for methodname in deprecated_methods:
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method = getattr(self.f, methodname)
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self.assertRaises(ValueError, method)
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self.assertRaises(ValueError, self.f.writelines, [])
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# file is closed, __exit__ shouldn't do anything
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self.assertEqual(self.f.__exit__(None, None, None), None)
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# it must also return None if an exception was given
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try:
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1 // 0
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except:
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self.assertEqual(self.f.__exit__(*sys.exc_info()), None)
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def testReadWhenWriting(self):
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self.assertRaises(IOError, self.f.read)
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def testNastyWritelinesGenerator(self):
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def nasty():
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for i in range(5):
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if i == 3:
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self.f.close()
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yield str(i)
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self.assertRaises(ValueError, self.f.writelines, nasty())
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def testIssue5677(self):
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# Remark: Do not perform more than one test per open file,
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# since that does NOT catch the readline error on Windows.
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data = 'xxx'
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for mode in ['w', 'wb', 'a', 'ab']:
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for attr in ['read', 'readline', 'readlines']:
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self.f = open(TESTFN, mode)
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self.f.write(data)
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self.assertRaises(IOError, getattr(self.f, attr))
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self.f.close()
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self.f = open(TESTFN, mode)
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self.f.write(data)
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self.assertRaises(IOError, lambda: [line for line in self.f])
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self.f.close()
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self.f = open(TESTFN, mode)
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self.f.write(data)
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self.assertRaises(IOError, self.f.readinto, bytearray(len(data)))
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self.f.close()
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for mode in ['r', 'rb', 'U', 'Ub', 'Ur', 'rU', 'rbU', 'rUb']:
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self.f = open(TESTFN, mode)
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self.assertRaises(IOError, self.f.write, data)
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self.f.close()
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self.f = open(TESTFN, mode)
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self.assertRaises(IOError, self.f.writelines, [data, data])
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self.f.close()
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self.f = open(TESTFN, mode)
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self.assertRaises(IOError, self.f.truncate)
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self.f.close()
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class OtherFileTests(unittest.TestCase):
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def testOpenDir(self):
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this_dir = os.path.dirname(__file__) or os.curdir
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for mode in (None, "w"):
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try:
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if mode:
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f = open(this_dir, mode)
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else:
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f = open(this_dir)
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except IOError as e:
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self.assertEqual(e.filename, this_dir)
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else:
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self.fail("opening a directory didn't raise an IOError")
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def testModeStrings(self):
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# check invalid mode strings
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for mode in ("", "aU", "wU+"):
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try:
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f = open(TESTFN, mode)
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except ValueError:
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pass
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else:
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f.close()
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self.fail('%r is an invalid file mode' % mode)
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# Some invalid modes fail on Windows, but pass on Unix
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# Issue3965: avoid a crash on Windows when filename is unicode
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for name in (TESTFN, unicode(TESTFN), unicode(TESTFN + '\t')):
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try:
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f = open(name, "rr")
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except (IOError, ValueError):
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pass
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else:
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f.close()
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def testStdin(self):
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# This causes the interpreter to exit on OSF1 v5.1.
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if sys.platform != 'osf1V5':
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self.assertRaises(IOError, sys.stdin.seek, -1)
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else:
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print >>sys.__stdout__, (
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' Skipping sys.stdin.seek(-1), it may crash the interpreter.'
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' Test manually.')
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self.assertRaises(IOError, sys.stdin.truncate)
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def testUnicodeOpen(self):
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# verify repr works for unicode too
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f = open(unicode(TESTFN), "w")
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self.assertTrue(repr(f).startswith("<open file u'" + TESTFN))
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f.close()
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os.unlink(TESTFN)
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def testBadModeArgument(self):
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# verify that we get a sensible error message for bad mode argument
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bad_mode = "qwerty"
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try:
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f = open(TESTFN, bad_mode)
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except ValueError, msg:
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if msg.args[0] != 0:
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s = str(msg)
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if TESTFN in s or bad_mode not in s:
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self.fail("bad error message for invalid mode: %s" % s)
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# if msg.args[0] == 0, we're probably on Windows where there may
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# be no obvious way to discover why open() failed.
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else:
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f.close()
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self.fail("no error for invalid mode: %s" % bad_mode)
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def testSetBufferSize(self):
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# make sure that explicitly setting the buffer size doesn't cause
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# misbehaviour especially with repeated close() calls
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for s in (-1, 0, 1, 512):
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try:
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f = open(TESTFN, 'w', s)
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f.write(str(s))
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f.close()
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f.close()
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f = open(TESTFN, 'r', s)
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d = int(f.read())
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f.close()
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f.close()
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except IOError, msg:
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self.fail('error setting buffer size %d: %s' % (s, str(msg)))
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self.assertEqual(d, s)
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def testTruncateOnWindows(self):
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os.unlink(TESTFN)
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def bug801631():
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# SF bug <http://www.python.org/sf/801631>
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# "file.truncate fault on windows"
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f = open(TESTFN, 'wb')
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f.write('12345678901') # 11 bytes
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f.close()
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f = open(TESTFN,'rb+')
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data = f.read(5)
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if data != '12345':
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self.fail("Read on file opened for update failed %r" % data)
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if f.tell() != 5:
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self.fail("File pos after read wrong %d" % f.tell())
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f.truncate()
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if f.tell() != 5:
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self.fail("File pos after ftruncate wrong %d" % f.tell())
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f.close()
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size = os.path.getsize(TESTFN)
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if size != 5:
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self.fail("File size after ftruncate wrong %d" % size)
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try:
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bug801631()
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finally:
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os.unlink(TESTFN)
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def testIteration(self):
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# Test the complex interaction when mixing file-iteration and the
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# various read* methods. Ostensibly, the mixture could just be tested
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# to work when it should work according to the Python language,
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# instead of fail when it should fail according to the current CPython
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# implementation. People don't always program Python the way they
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# should, though, and the implemenation might change in subtle ways,
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# so we explicitly test for errors, too; the test will just have to
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# be updated when the implementation changes.
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dataoffset = 16384
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filler = "ham\n"
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assert not dataoffset % len(filler), \
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"dataoffset must be multiple of len(filler)"
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nchunks = dataoffset // len(filler)
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testlines = [
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"spam, spam and eggs\n",
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"eggs, spam, ham and spam\n",
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"saussages, spam, spam and eggs\n",
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"spam, ham, spam and eggs\n",
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"spam, spam, spam, spam, spam, ham, spam\n",
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"wonderful spaaaaaam.\n"
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]
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methods = [("readline", ()), ("read", ()), ("readlines", ()),
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("readinto", (array("c", " "*100),))]
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try:
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# Prepare the testfile
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bag = open(TESTFN, "w")
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bag.write(filler * nchunks)
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bag.writelines(testlines)
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bag.close()
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# Test for appropriate errors mixing read* and iteration
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for methodname, args in methods:
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f = open(TESTFN)
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if f.next() != filler:
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self.fail, "Broken testfile"
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meth = getattr(f, methodname)
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try:
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meth(*args)
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except ValueError:
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pass
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else:
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self.fail("%s%r after next() didn't raise ValueError" %
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(methodname, args))
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f.close()
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# Test to see if harmless (by accident) mixing of read* and
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# iteration still works. This depends on the size of the internal
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# iteration buffer (currently 8192,) but we can test it in a
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# flexible manner. Each line in the bag o' ham is 4 bytes
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# ("h", "a", "m", "\n"), so 4096 lines of that should get us
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# exactly on the buffer boundary for any power-of-2 buffersize
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# between 4 and 16384 (inclusive).
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f = open(TESTFN)
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for i in range(nchunks):
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f.next()
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testline = testlines.pop(0)
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try:
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line = f.readline()
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except ValueError:
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self.fail("readline() after next() with supposedly empty "
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"iteration-buffer failed anyway")
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if line != testline:
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self.fail("readline() after next() with empty buffer "
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"failed. Got %r, expected %r" % (line, testline))
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testline = testlines.pop(0)
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buf = array("c", "\x00" * len(testline))
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try:
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f.readinto(buf)
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except ValueError:
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self.fail("readinto() after next() with supposedly empty "
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"iteration-buffer failed anyway")
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line = buf.tostring()
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if line != testline:
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self.fail("readinto() after next() with empty buffer "
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"failed. Got %r, expected %r" % (line, testline))
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testline = testlines.pop(0)
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try:
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line = f.read(len(testline))
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except ValueError:
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self.fail("read() after next() with supposedly empty "
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"iteration-buffer failed anyway")
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if line != testline:
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self.fail("read() after next() with empty buffer "
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"failed. Got %r, expected %r" % (line, testline))
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try:
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lines = f.readlines()
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except ValueError:
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self.fail("readlines() after next() with supposedly empty "
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"iteration-buffer failed anyway")
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if lines != testlines:
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self.fail("readlines() after next() with empty buffer "
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"failed. Got %r, expected %r" % (line, testline))
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# Reading after iteration hit EOF shouldn't hurt either
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f = open(TESTFN)
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try:
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for line in f:
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pass
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try:
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f.readline()
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f.readinto(buf)
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f.read()
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f.readlines()
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except ValueError:
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self.fail("read* failed after next() consumed file")
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finally:
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f.close()
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finally:
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os.unlink(TESTFN)
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class FileSubclassTests(unittest.TestCase):
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def testExit(self):
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# test that exiting with context calls subclass' close
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class C(file):
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def __init__(self, *args):
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self.subclass_closed = False
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file.__init__(self, *args)
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def close(self):
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self.subclass_closed = True
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file.close(self)
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with C(TESTFN, 'w') as f:
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pass
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self.assertTrue(f.subclass_closed)
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@unittest.skipUnless(threading, 'Threading required for this test.')
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class FileThreadingTests(unittest.TestCase):
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# These tests check the ability to call various methods of file objects
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# (including close()) concurrently without crashing the Python interpreter.
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# See #815646, #595601
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def setUp(self):
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self._threads = test_support.threading_setup()
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self.f = None
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self.filename = TESTFN
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with open(self.filename, "w") as f:
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f.write("\n".join("0123456789"))
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self._count_lock = threading.Lock()
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self.close_count = 0
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self.close_success_count = 0
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self.use_buffering = False
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def tearDown(self):
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if self.f:
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try:
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self.f.close()
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except (EnvironmentError, ValueError):
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pass
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try:
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os.remove(self.filename)
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except EnvironmentError:
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pass
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test_support.threading_cleanup(*self._threads)
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def _create_file(self):
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if self.use_buffering:
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self.f = open(self.filename, "w+", buffering=1024*16)
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else:
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self.f = open(self.filename, "w+")
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def _close_file(self):
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with self._count_lock:
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self.close_count += 1
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self.f.close()
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with self._count_lock:
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self.close_success_count += 1
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def _close_and_reopen_file(self):
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self._close_file()
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# if close raises an exception thats fine, self.f remains valid so
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# we don't need to reopen.
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self._create_file()
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def _run_workers(self, func, nb_workers, duration=0.2):
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with self._count_lock:
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self.close_count = 0
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self.close_success_count = 0
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self.do_continue = True
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threads = []
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try:
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for i in range(nb_workers):
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t = threading.Thread(target=func)
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t.start()
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threads.append(t)
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for _ in xrange(100):
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time.sleep(duration/100)
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with self._count_lock:
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if self.close_count-self.close_success_count > nb_workers+1:
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if test_support.verbose:
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print 'Q',
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break
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time.sleep(duration)
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finally:
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self.do_continue = False
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for t in threads:
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t.join()
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def _test_close_open_io(self, io_func, nb_workers=5):
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def worker():
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self._create_file()
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funcs = itertools.cycle((
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lambda: io_func(),
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lambda: self._close_and_reopen_file(),
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))
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for f in funcs:
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if not self.do_continue:
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break
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try:
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f()
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except (IOError, ValueError):
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pass
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self._run_workers(worker, nb_workers)
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if test_support.verbose:
|
|
# Useful verbose statistics when tuning this test to take
|
|
# less time to run but still ensuring that its still useful.
|
|
#
|
|
# the percent of close calls that raised an error
|
|
percent = 100. - 100.*self.close_success_count/self.close_count
|
|
print self.close_count, ('%.4f ' % percent),
|
|
|
|
def test_close_open(self):
|
|
def io_func():
|
|
pass
|
|
self._test_close_open_io(io_func)
|
|
|
|
def test_close_open_flush(self):
|
|
def io_func():
|
|
self.f.flush()
|
|
self._test_close_open_io(io_func)
|
|
|
|
def test_close_open_iter(self):
|
|
def io_func():
|
|
list(iter(self.f))
|
|
self._test_close_open_io(io_func)
|
|
|
|
def test_close_open_isatty(self):
|
|
def io_func():
|
|
self.f.isatty()
|
|
self._test_close_open_io(io_func)
|
|
|
|
def test_close_open_print(self):
|
|
def io_func():
|
|
print >> self.f, ''
|
|
self._test_close_open_io(io_func)
|
|
|
|
def test_close_open_print_buffered(self):
|
|
self.use_buffering = True
|
|
def io_func():
|
|
print >> self.f, ''
|
|
self._test_close_open_io(io_func)
|
|
|
|
def test_close_open_read(self):
|
|
def io_func():
|
|
self.f.read(0)
|
|
self._test_close_open_io(io_func)
|
|
|
|
def test_close_open_readinto(self):
|
|
def io_func():
|
|
a = array('c', 'xxxxx')
|
|
self.f.readinto(a)
|
|
self._test_close_open_io(io_func)
|
|
|
|
def test_close_open_readline(self):
|
|
def io_func():
|
|
self.f.readline()
|
|
self._test_close_open_io(io_func)
|
|
|
|
def test_close_open_readlines(self):
|
|
def io_func():
|
|
self.f.readlines()
|
|
self._test_close_open_io(io_func)
|
|
|
|
def test_close_open_seek(self):
|
|
def io_func():
|
|
self.f.seek(0, 0)
|
|
self._test_close_open_io(io_func)
|
|
|
|
def test_close_open_tell(self):
|
|
def io_func():
|
|
self.f.tell()
|
|
self._test_close_open_io(io_func)
|
|
|
|
def test_close_open_truncate(self):
|
|
def io_func():
|
|
self.f.truncate()
|
|
self._test_close_open_io(io_func)
|
|
|
|
def test_close_open_write(self):
|
|
def io_func():
|
|
self.f.write('')
|
|
self._test_close_open_io(io_func)
|
|
|
|
def test_close_open_writelines(self):
|
|
def io_func():
|
|
self.f.writelines('')
|
|
self._test_close_open_io(io_func)
|
|
|
|
|
|
class StdoutTests(unittest.TestCase):
|
|
|
|
def test_move_stdout_on_write(self):
|
|
# Issue 3242: sys.stdout can be replaced (and freed) during a
|
|
# print statement; prevent a segfault in this case
|
|
save_stdout = sys.stdout
|
|
|
|
class File:
|
|
def write(self, data):
|
|
if '\n' in data:
|
|
sys.stdout = save_stdout
|
|
|
|
try:
|
|
sys.stdout = File()
|
|
print "some text"
|
|
finally:
|
|
sys.stdout = save_stdout
|
|
|
|
def test_del_stdout_before_print(self):
|
|
# Issue 4597: 'print' with no argument wasn't reporting when
|
|
# sys.stdout was deleted.
|
|
save_stdout = sys.stdout
|
|
del sys.stdout
|
|
try:
|
|
print
|
|
except RuntimeError as e:
|
|
self.assertEqual(str(e), "lost sys.stdout")
|
|
else:
|
|
self.fail("Expected RuntimeError")
|
|
finally:
|
|
sys.stdout = save_stdout
|
|
|
|
def test_unicode(self):
|
|
import subprocess
|
|
|
|
def get_message(encoding, *code):
|
|
code = '\n'.join(code)
|
|
env = os.environ.copy()
|
|
env['PYTHONIOENCODING'] = encoding
|
|
process = subprocess.Popen([sys.executable, "-c", code],
|
|
stdout=subprocess.PIPE, env=env)
|
|
stdout, stderr = process.communicate()
|
|
self.assertEqual(process.returncode, 0)
|
|
return stdout
|
|
|
|
def check_message(text, encoding, expected):
|
|
stdout = get_message(encoding,
|
|
"import sys",
|
|
"sys.stdout.write(%r)" % text,
|
|
"sys.stdout.flush()")
|
|
self.assertEqual(stdout, expected)
|
|
|
|
# test the encoding
|
|
check_message(u'15\u20ac', "iso-8859-15", "15\xa4")
|
|
check_message(u'15\u20ac', "utf-8", '15\xe2\x82\xac')
|
|
check_message(u'15\u20ac', "utf-16-le", '1\x005\x00\xac\x20')
|
|
|
|
# test the error handler
|
|
check_message(u'15\u20ac', "iso-8859-1:ignore", "15")
|
|
check_message(u'15\u20ac', "iso-8859-1:replace", "15?")
|
|
check_message(u'15\u20ac', "iso-8859-1:backslashreplace", "15\\u20ac")
|
|
|
|
# test the buffer API
|
|
for objtype in ('buffer', 'bytearray'):
|
|
stdout = get_message('ascii',
|
|
'import sys',
|
|
r'sys.stdout.write(%s("\xe9"))' % objtype,
|
|
'sys.stdout.flush()')
|
|
self.assertEqual(stdout, "\xe9")
|
|
|
|
|
|
def test_main():
|
|
# Historically, these tests have been sloppy about removing TESTFN.
|
|
# So get rid of it no matter what.
|
|
try:
|
|
run_unittest(AutoFileTests, OtherFileTests, FileSubclassTests,
|
|
FileThreadingTests, StdoutTests)
|
|
finally:
|
|
if os.path.exists(TESTFN):
|
|
os.unlink(TESTFN)
|
|
|
|
if __name__ == '__main__':
|
|
test_main()
|