123 lines
4.3 KiB
Python
123 lines
4.3 KiB
Python
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"""Tests for distutils.file_util."""
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import unittest
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import os
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import errno
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from unittest.mock import patch
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from distutils.file_util import move_file, copy_file
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from distutils import log
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from distutils.tests import support
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from distutils.errors import DistutilsFileError
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from test.support import run_unittest, unlink
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class FileUtilTestCase(support.TempdirManager, unittest.TestCase):
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def _log(self, msg, *args):
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if len(args) > 0:
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self._logs.append(msg % args)
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else:
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self._logs.append(msg)
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def setUp(self):
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super(FileUtilTestCase, self).setUp()
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self._logs = []
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self.old_log = log.info
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log.info = self._log
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tmp_dir = self.mkdtemp()
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self.source = os.path.join(tmp_dir, 'f1')
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self.target = os.path.join(tmp_dir, 'f2')
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self.target_dir = os.path.join(tmp_dir, 'd1')
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def tearDown(self):
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log.info = self.old_log
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super(FileUtilTestCase, self).tearDown()
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def test_move_file_verbosity(self):
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f = open(self.source, 'w')
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try:
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f.write('some content')
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finally:
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f.close()
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move_file(self.source, self.target, verbose=0)
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wanted = []
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self.assertEqual(self._logs, wanted)
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# back to original state
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move_file(self.target, self.source, verbose=0)
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move_file(self.source, self.target, verbose=1)
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wanted = ['moving %s -> %s' % (self.source, self.target)]
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self.assertEqual(self._logs, wanted)
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# back to original state
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move_file(self.target, self.source, verbose=0)
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self._logs = []
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# now the target is a dir
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os.mkdir(self.target_dir)
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move_file(self.source, self.target_dir, verbose=1)
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wanted = ['moving %s -> %s' % (self.source, self.target_dir)]
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self.assertEqual(self._logs, wanted)
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def test_move_file_exception_unpacking_rename(self):
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# see issue 22182
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with patch("os.rename", side_effect=OSError("wrong", 1)), \
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self.assertRaises(DistutilsFileError):
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with open(self.source, 'w') as fobj:
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fobj.write('spam eggs')
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move_file(self.source, self.target, verbose=0)
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def test_move_file_exception_unpacking_unlink(self):
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# see issue 22182
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with patch("os.rename", side_effect=OSError(errno.EXDEV, "wrong")), \
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patch("os.unlink", side_effect=OSError("wrong", 1)), \
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self.assertRaises(DistutilsFileError):
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with open(self.source, 'w') as fobj:
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fobj.write('spam eggs')
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move_file(self.source, self.target, verbose=0)
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def test_copy_file_hard_link(self):
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with open(self.source, 'w') as f:
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f.write('some content')
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# Check first that copy_file() will not fall back on copying the file
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# instead of creating the hard link.
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try:
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os.link(self.source, self.target)
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except OSError as e:
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self.skipTest('os.link: %s' % e)
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else:
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unlink(self.target)
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st = os.stat(self.source)
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copy_file(self.source, self.target, link='hard')
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st2 = os.stat(self.source)
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st3 = os.stat(self.target)
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self.assertTrue(os.path.samestat(st, st2), (st, st2))
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self.assertTrue(os.path.samestat(st2, st3), (st2, st3))
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with open(self.source, 'r') as f:
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self.assertEqual(f.read(), 'some content')
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def test_copy_file_hard_link_failure(self):
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# If hard linking fails, copy_file() falls back on copying file
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# (some special filesystems don't support hard linking even under
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# Unix, see issue #8876).
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with open(self.source, 'w') as f:
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f.write('some content')
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st = os.stat(self.source)
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with patch("os.link", side_effect=OSError(0, "linking unsupported")):
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copy_file(self.source, self.target, link='hard')
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st2 = os.stat(self.source)
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st3 = os.stat(self.target)
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self.assertTrue(os.path.samestat(st, st2), (st, st2))
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self.assertFalse(os.path.samestat(st2, st3), (st2, st3))
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for fn in (self.source, self.target):
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with open(fn, 'r') as f:
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self.assertEqual(f.read(), 'some content')
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def test_suite():
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return unittest.makeSuite(FileUtilTestCase)
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if __name__ == "__main__":
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run_unittest(test_suite())
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