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svn+ssh://pythondev@svn.python.org/python/trunk ........ r76101 | antoine.pitrou | 2009-11-04 01:50:26 +0100 (mer., 04 nov. 2009) | 3 lines Make test_shutil clean up after itself ........
422 lines
16 KiB
Python
422 lines
16 KiB
Python
# Copyright (C) 2003 Python Software Foundation
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import unittest
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import shutil
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import tempfile
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import sys
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import stat
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import os
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import os.path
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from test import support
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from test.support import TESTFN
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TESTFN2 = TESTFN + "2"
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class TestShutil(unittest.TestCase):
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def test_rmtree_errors(self):
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# filename is guaranteed not to exist
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filename = tempfile.mktemp()
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self.assertRaises(OSError, shutil.rmtree, filename)
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# See bug #1071513 for why we don't run this on cygwin
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# and bug #1076467 for why we don't run this as root.
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if (hasattr(os, 'chmod') and sys.platform[:6] != 'cygwin'
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and not (hasattr(os, 'geteuid') and os.geteuid() == 0)):
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def test_on_error(self):
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self.errorState = 0
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os.mkdir(TESTFN)
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self.childpath = os.path.join(TESTFN, 'a')
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f = open(self.childpath, 'w')
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f.close()
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old_dir_mode = os.stat(TESTFN).st_mode
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old_child_mode = os.stat(self.childpath).st_mode
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# Make unwritable.
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os.chmod(self.childpath, stat.S_IREAD)
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os.chmod(TESTFN, stat.S_IREAD)
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shutil.rmtree(TESTFN, onerror=self.check_args_to_onerror)
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# Test whether onerror has actually been called.
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self.assertEqual(self.errorState, 2,
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"Expected call to onerror function did not happen.")
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# Make writable again.
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os.chmod(TESTFN, old_dir_mode)
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os.chmod(self.childpath, old_child_mode)
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# Clean up.
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shutil.rmtree(TESTFN)
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def check_args_to_onerror(self, func, arg, exc):
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# test_rmtree_errors deliberately runs rmtree
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# on a directory that is chmod 400, which will fail.
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# This function is run when shutil.rmtree fails.
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# 99.9% of the time it initially fails to remove
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# a file in the directory, so the first time through
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# func is os.remove.
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# However, some Linux machines running ZFS on
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# FUSE experienced a failure earlier in the process
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# at os.listdir. The first failure may legally
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# be either.
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if self.errorState == 0:
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if func is os.remove:
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self.assertEqual(arg, self.childpath)
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else:
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self.assertIs(func, os.listdir,
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"func must be either os.remove or os.listdir")
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self.assertEqual(arg, TESTFN)
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self.assertTrue(issubclass(exc[0], OSError))
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self.errorState = 1
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else:
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self.assertEqual(func, os.rmdir)
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self.assertEqual(arg, TESTFN)
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self.assertTrue(issubclass(exc[0], OSError))
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self.errorState = 2
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def test_rmtree_dont_delete_file(self):
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# When called on a file instead of a directory, don't delete it.
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handle, path = tempfile.mkstemp()
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os.fdopen(handle).close()
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self.assertRaises(OSError, shutil.rmtree, path)
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os.remove(path)
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def test_copytree_simple(self):
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def write_data(path, data):
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f = open(path, "w")
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f.write(data)
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f.close()
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def read_data(path):
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f = open(path)
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data = f.read()
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f.close()
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return data
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src_dir = tempfile.mkdtemp()
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dst_dir = os.path.join(tempfile.mkdtemp(), 'destination')
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write_data(os.path.join(src_dir, 'test.txt'), '123')
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os.mkdir(os.path.join(src_dir, 'test_dir'))
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write_data(os.path.join(src_dir, 'test_dir', 'test.txt'), '456')
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try:
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shutil.copytree(src_dir, dst_dir)
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self.assertTrue(os.path.isfile(os.path.join(dst_dir, 'test.txt')))
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self.assertTrue(os.path.isdir(os.path.join(dst_dir, 'test_dir')))
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self.assertTrue(os.path.isfile(os.path.join(dst_dir, 'test_dir',
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'test.txt')))
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actual = read_data(os.path.join(dst_dir, 'test.txt'))
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self.assertEqual(actual, '123')
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actual = read_data(os.path.join(dst_dir, 'test_dir', 'test.txt'))
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self.assertEqual(actual, '456')
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finally:
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for path in (
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os.path.join(src_dir, 'test.txt'),
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os.path.join(dst_dir, 'test.txt'),
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os.path.join(src_dir, 'test_dir', 'test.txt'),
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os.path.join(dst_dir, 'test_dir', 'test.txt'),
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):
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if os.path.exists(path):
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os.remove(path)
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for path in (src_dir,
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os.path.dirname(dst_dir)
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):
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if os.path.exists(path):
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shutil.rmtree(path)
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def test_copytree_with_exclude(self):
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def write_data(path, data):
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f = open(path, "w")
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f.write(data)
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f.close()
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def read_data(path):
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f = open(path)
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data = f.read()
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f.close()
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return data
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# creating data
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join = os.path.join
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exists = os.path.exists
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src_dir = tempfile.mkdtemp()
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try:
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dst_dir = join(tempfile.mkdtemp(), 'destination')
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write_data(join(src_dir, 'test.txt'), '123')
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write_data(join(src_dir, 'test.tmp'), '123')
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os.mkdir(join(src_dir, 'test_dir'))
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write_data(join(src_dir, 'test_dir', 'test.txt'), '456')
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os.mkdir(join(src_dir, 'test_dir2'))
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write_data(join(src_dir, 'test_dir2', 'test.txt'), '456')
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os.mkdir(join(src_dir, 'test_dir2', 'subdir'))
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os.mkdir(join(src_dir, 'test_dir2', 'subdir2'))
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write_data(join(src_dir, 'test_dir2', 'subdir', 'test.txt'), '456')
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write_data(join(src_dir, 'test_dir2', 'subdir2', 'test.py'), '456')
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# testing glob-like patterns
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try:
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patterns = shutil.ignore_patterns('*.tmp', 'test_dir2')
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shutil.copytree(src_dir, dst_dir, ignore=patterns)
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# checking the result: some elements should not be copied
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self.assertTrue(exists(join(dst_dir, 'test.txt')))
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self.assertTrue(not exists(join(dst_dir, 'test.tmp')))
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self.assertTrue(not exists(join(dst_dir, 'test_dir2')))
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finally:
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if os.path.exists(dst_dir):
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shutil.rmtree(dst_dir)
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try:
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patterns = shutil.ignore_patterns('*.tmp', 'subdir*')
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shutil.copytree(src_dir, dst_dir, ignore=patterns)
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# checking the result: some elements should not be copied
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self.assertTrue(not exists(join(dst_dir, 'test.tmp')))
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self.assertTrue(not exists(join(dst_dir, 'test_dir2', 'subdir2')))
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self.assertTrue(not exists(join(dst_dir, 'test_dir2', 'subdir')))
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finally:
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if os.path.exists(dst_dir):
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shutil.rmtree(dst_dir)
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# testing callable-style
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try:
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def _filter(src, names):
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res = []
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for name in names:
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path = os.path.join(src, name)
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if (os.path.isdir(path) and
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path.split()[-1] == 'subdir'):
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res.append(name)
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elif os.path.splitext(path)[-1] in ('.py'):
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res.append(name)
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return res
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shutil.copytree(src_dir, dst_dir, ignore=_filter)
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# checking the result: some elements should not be copied
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self.assertTrue(not exists(join(dst_dir, 'test_dir2', 'subdir2',
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'test.py')))
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self.assertTrue(not exists(join(dst_dir, 'test_dir2', 'subdir')))
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finally:
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if os.path.exists(dst_dir):
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shutil.rmtree(dst_dir)
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finally:
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shutil.rmtree(src_dir)
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shutil.rmtree(os.path.dirname(dst_dir))
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if hasattr(os, "symlink"):
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def test_dont_copy_file_onto_link_to_itself(self):
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# bug 851123.
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os.mkdir(TESTFN)
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src = os.path.join(TESTFN, 'cheese')
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dst = os.path.join(TESTFN, 'shop')
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try:
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f = open(src, 'w')
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f.write('cheddar')
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f.close()
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os.link(src, dst)
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self.assertRaises(shutil.Error, shutil.copyfile, src, dst)
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self.assertEqual(open(src,'r').read(), 'cheddar')
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os.remove(dst)
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# Using `src` here would mean we end up with a symlink pointing
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# to TESTFN/TESTFN/cheese, while it should point at
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# TESTFN/cheese.
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os.symlink('cheese', dst)
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self.assertRaises(shutil.Error, shutil.copyfile, src, dst)
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self.assertEqual(open(src,'r').read(), 'cheddar')
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os.remove(dst)
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finally:
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try:
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shutil.rmtree(TESTFN)
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except OSError:
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pass
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def test_rmtree_on_symlink(self):
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# bug 1669.
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os.mkdir(TESTFN)
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try:
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src = os.path.join(TESTFN, 'cheese')
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dst = os.path.join(TESTFN, 'shop')
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os.mkdir(src)
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os.symlink(src, dst)
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self.assertRaises(OSError, shutil.rmtree, dst)
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finally:
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shutil.rmtree(TESTFN, ignore_errors=True)
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if hasattr(os, "mkfifo"):
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# Issue #3002: copyfile and copytree block indefinitely on named pipes
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def test_copyfile_named_pipe(self):
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os.mkfifo(TESTFN)
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try:
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self.assertRaises(shutil.SpecialFileError,
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shutil.copyfile, TESTFN, TESTFN2)
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self.assertRaises(shutil.SpecialFileError,
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shutil.copyfile, __file__, TESTFN)
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finally:
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os.remove(TESTFN)
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def test_copytree_named_pipe(self):
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os.mkdir(TESTFN)
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try:
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subdir = os.path.join(TESTFN, "subdir")
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os.mkdir(subdir)
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pipe = os.path.join(subdir, "mypipe")
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os.mkfifo(pipe)
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try:
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shutil.copytree(TESTFN, TESTFN2)
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except shutil.Error as e:
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errors = e.args[0]
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self.assertEqual(len(errors), 1)
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src, dst, error_msg = errors[0]
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self.assertEqual("`%s` is a named pipe" % pipe, error_msg)
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else:
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self.fail("shutil.Error should have been raised")
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finally:
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shutil.rmtree(TESTFN, ignore_errors=True)
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shutil.rmtree(TESTFN2, ignore_errors=True)
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class TestMove(unittest.TestCase):
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def setUp(self):
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filename = "foo"
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self.src_dir = tempfile.mkdtemp()
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self.dst_dir = tempfile.mkdtemp()
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self.src_file = os.path.join(self.src_dir, filename)
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self.dst_file = os.path.join(self.dst_dir, filename)
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# Try to create a dir in the current directory, hoping that it is
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# not located on the same filesystem as the system tmp dir.
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try:
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self.dir_other_fs = tempfile.mkdtemp(
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dir=os.path.dirname(__file__))
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self.file_other_fs = os.path.join(self.dir_other_fs,
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filename)
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except OSError:
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self.dir_other_fs = None
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with open(self.src_file, "wb") as f:
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f.write(b"spam")
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def tearDown(self):
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for d in (self.src_dir, self.dst_dir, self.dir_other_fs):
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try:
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if d:
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shutil.rmtree(d)
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except:
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pass
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def _check_move_file(self, src, dst, real_dst):
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contents = open(src, "rb").read()
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shutil.move(src, dst)
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self.assertEqual(contents, open(real_dst, "rb").read())
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self.assertFalse(os.path.exists(src))
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def _check_move_dir(self, src, dst, real_dst):
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contents = sorted(os.listdir(src))
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shutil.move(src, dst)
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self.assertEqual(contents, sorted(os.listdir(real_dst)))
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self.assertFalse(os.path.exists(src))
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def test_move_file(self):
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# Move a file to another location on the same filesystem.
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self._check_move_file(self.src_file, self.dst_file, self.dst_file)
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def test_move_file_to_dir(self):
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# Move a file inside an existing dir on the same filesystem.
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self._check_move_file(self.src_file, self.dst_dir, self.dst_file)
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def test_move_file_other_fs(self):
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# Move a file to an existing dir on another filesystem.
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if not self.dir_other_fs:
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# skip
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return
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self._check_move_file(self.src_file, self.file_other_fs,
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self.file_other_fs)
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def test_move_file_to_dir_other_fs(self):
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# Move a file to another location on another filesystem.
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if not self.dir_other_fs:
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# skip
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return
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self._check_move_file(self.src_file, self.dir_other_fs,
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self.file_other_fs)
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def test_move_dir(self):
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# Move a dir to another location on the same filesystem.
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dst_dir = tempfile.mktemp()
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try:
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self._check_move_dir(self.src_dir, dst_dir, dst_dir)
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finally:
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try:
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shutil.rmtree(dst_dir)
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except:
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pass
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def test_move_dir_other_fs(self):
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# Move a dir to another location on another filesystem.
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if not self.dir_other_fs:
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# skip
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return
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dst_dir = tempfile.mktemp(dir=self.dir_other_fs)
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try:
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self._check_move_dir(self.src_dir, dst_dir, dst_dir)
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finally:
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try:
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shutil.rmtree(dst_dir)
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except:
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pass
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def test_move_dir_to_dir(self):
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# Move a dir inside an existing dir on the same filesystem.
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self._check_move_dir(self.src_dir, self.dst_dir,
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os.path.join(self.dst_dir, os.path.basename(self.src_dir)))
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def test_move_dir_to_dir_other_fs(self):
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# Move a dir inside an existing dir on another filesystem.
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if not self.dir_other_fs:
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# skip
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return
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self._check_move_dir(self.src_dir, self.dir_other_fs,
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os.path.join(self.dir_other_fs, os.path.basename(self.src_dir)))
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def test_existing_file_inside_dest_dir(self):
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# A file with the same name inside the destination dir already exists.
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with open(self.dst_file, "wb"):
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pass
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self.assertRaises(shutil.Error, shutil.move, self.src_file, self.dst_dir)
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def test_dont_move_dir_in_itself(self):
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# Moving a dir inside itself raises an Error.
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dst = os.path.join(self.src_dir, "bar")
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self.assertRaises(shutil.Error, shutil.move, self.src_dir, dst)
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def test_destinsrc_false_negative(self):
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os.mkdir(TESTFN)
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try:
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for src, dst in [('srcdir', 'srcdir/dest')]:
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src = os.path.join(TESTFN, src)
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dst = os.path.join(TESTFN, dst)
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self.assertTrue(shutil._destinsrc(src, dst),
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msg='_destinsrc() wrongly concluded that '
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'dst (%s) is not in src (%s)' % (dst, src))
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finally:
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shutil.rmtree(TESTFN, ignore_errors=True)
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def test_destinsrc_false_positive(self):
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os.mkdir(TESTFN)
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try:
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for src, dst in [('srcdir', 'src/dest'), ('srcdir', 'srcdir.new')]:
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src = os.path.join(TESTFN, src)
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dst = os.path.join(TESTFN, dst)
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self.assertFalse(shutil._destinsrc(src, dst),
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msg='_destinsrc() wrongly concluded that '
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'dst (%s) is in src (%s)' % (dst, src))
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finally:
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shutil.rmtree(TESTFN, ignore_errors=True)
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def test_main():
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support.run_unittest(TestShutil, TestMove)
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if __name__ == '__main__':
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test_main()
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