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Diffstat (limited to 'lib/python2.7/test/test_shutil.py')
| -rw-r--r-- | lib/python2.7/test/test_shutil.py | 865 |
1 files changed, 865 insertions, 0 deletions
diff --git a/lib/python2.7/test/test_shutil.py b/lib/python2.7/test/test_shutil.py new file mode 100644 index 0000000..9bdb724 --- /dev/null +++ b/lib/python2.7/test/test_shutil.py @@ -0,0 +1,865 @@ +# Copyright (C) 2003 Python Software Foundation + +import unittest +import shutil +import tempfile +import sys +import stat +import os +import os.path +import errno +from os.path import splitdrive +from distutils.spawn import find_executable, spawn +from shutil import (_make_tarball, _make_zipfile, make_archive, + register_archive_format, unregister_archive_format, + get_archive_formats) +import tarfile +import warnings + +from test import test_support +from test.test_support import TESTFN, check_warnings, captured_stdout + +TESTFN2 = TESTFN + "2" + +try: + import grp + import pwd + UID_GID_SUPPORT = True +except ImportError: + UID_GID_SUPPORT = False + +try: + import zlib +except ImportError: + zlib = None + +try: + import zipfile + ZIP_SUPPORT = True +except ImportError: + ZIP_SUPPORT = find_executable('zip') + +class TestShutil(unittest.TestCase): + + def setUp(self): + super(TestShutil, self).setUp() + self.tempdirs = [] + + def tearDown(self): + super(TestShutil, self).tearDown() + while self.tempdirs: + d = self.tempdirs.pop() + shutil.rmtree(d, os.name in ('nt', 'cygwin')) + + def write_file(self, path, content='xxx'): + """Writes a file in the given path. + + + path can be a string or a sequence. + """ + if isinstance(path, (list, tuple)): + path = os.path.join(*path) + f = open(path, 'w') + try: + f.write(content) + finally: + f.close() + + def mkdtemp(self): + """Create a temporary directory that will be cleaned up. + + Returns the path of the directory. + """ + d = tempfile.mkdtemp() + self.tempdirs.append(d) + return d + def test_rmtree_errors(self): + # filename is guaranteed not to exist + filename = tempfile.mktemp() + self.assertRaises(OSError, shutil.rmtree, filename) + + # See bug #1071513 for why we don't run this on cygwin + # and bug #1076467 for why we don't run this as root. + if (hasattr(os, 'chmod') and sys.platform[:6] != 'cygwin' + and not (hasattr(os, 'geteuid') and os.geteuid() == 0)): + def test_on_error(self): + self.errorState = 0 + os.mkdir(TESTFN) + self.childpath = os.path.join(TESTFN, 'a') + f = open(self.childpath, 'w') + f.close() + old_dir_mode = os.stat(TESTFN).st_mode + old_child_mode = os.stat(self.childpath).st_mode + # Make unwritable. + os.chmod(self.childpath, stat.S_IREAD) + os.chmod(TESTFN, stat.S_IREAD) + + shutil.rmtree(TESTFN, onerror=self.check_args_to_onerror) + # Test whether onerror has actually been called. + self.assertEqual(self.errorState, 2, + "Expected call to onerror function did not happen.") + + # Make writable again. + os.chmod(TESTFN, old_dir_mode) + os.chmod(self.childpath, old_child_mode) + + # Clean up. + shutil.rmtree(TESTFN) + + def check_args_to_onerror(self, func, arg, exc): + # test_rmtree_errors deliberately runs rmtree + # on a directory that is chmod 400, which will fail. + # This function is run when shutil.rmtree fails. + # 99.9% of the time it initially fails to remove + # a file in the directory, so the first time through + # func is os.remove. + # However, some Linux machines running ZFS on + # FUSE experienced a failure earlier in the process + # at os.listdir. The first failure may legally + # be either. + if self.errorState == 0: + if func is os.remove: + self.assertEqual(arg, self.childpath) + else: + self.assertIs(func, os.listdir, + "func must be either os.remove or os.listdir") + self.assertEqual(arg, TESTFN) + self.assertTrue(issubclass(exc[0], OSError)) + self.errorState = 1 + else: + self.assertEqual(func, os.rmdir) + self.assertEqual(arg, TESTFN) + self.assertTrue(issubclass(exc[0], OSError)) + self.errorState = 2 + + def test_rmtree_dont_delete_file(self): + # When called on a file instead of a directory, don't delete it. + handle, path = tempfile.mkstemp() + os.fdopen(handle).close() + self.assertRaises(OSError, shutil.rmtree, path) + os.remove(path) + + def test_copytree_simple(self): + def write_data(path, data): + f = open(path, "w") + f.write(data) + f.close() + + def read_data(path): + f = open(path) + data = f.read() + f.close() + return data + + src_dir = tempfile.mkdtemp() + dst_dir = os.path.join(tempfile.mkdtemp(), 'destination') + + write_data(os.path.join(src_dir, 'test.txt'), '123') + + os.mkdir(os.path.join(src_dir, 'test_dir')) + write_data(os.path.join(src_dir, 'test_dir', 'test.txt'), '456') + + try: + shutil.copytree(src_dir, dst_dir) + self.assertTrue(os.path.isfile(os.path.join(dst_dir, 'test.txt'))) + self.assertTrue(os.path.isdir(os.path.join(dst_dir, 'test_dir'))) + self.assertTrue(os.path.isfile(os.path.join(dst_dir, 'test_dir', + 'test.txt'))) + actual = read_data(os.path.join(dst_dir, 'test.txt')) + self.assertEqual(actual, '123') + actual = read_data(os.path.join(dst_dir, 'test_dir', 'test.txt')) + self.assertEqual(actual, '456') + finally: + for path in ( + os.path.join(src_dir, 'test.txt'), + os.path.join(dst_dir, 'test.txt'), + os.path.join(src_dir, 'test_dir', 'test.txt'), + os.path.join(dst_dir, 'test_dir', 'test.txt'), + ): + if os.path.exists(path): + os.remove(path) + for path in (src_dir, + os.path.dirname(dst_dir) + ): + if os.path.exists(path): + shutil.rmtree(path) + + def test_copytree_with_exclude(self): + + def write_data(path, data): + f = open(path, "w") + f.write(data) + f.close() + + def read_data(path): + f = open(path) + data = f.read() + f.close() + return data + + # creating data + join = os.path.join + exists = os.path.exists + src_dir = tempfile.mkdtemp() + try: + dst_dir = join(tempfile.mkdtemp(), 'destination') + write_data(join(src_dir, 'test.txt'), '123') + write_data(join(src_dir, 'test.tmp'), '123') + os.mkdir(join(src_dir, 'test_dir')) + write_data(join(src_dir, 'test_dir', 'test.txt'), '456') + os.mkdir(join(src_dir, 'test_dir2')) + write_data(join(src_dir, 'test_dir2', 'test.txt'), '456') + os.mkdir(join(src_dir, 'test_dir2', 'subdir')) + os.mkdir(join(src_dir, 'test_dir2', 'subdir2')) + write_data(join(src_dir, 'test_dir2', 'subdir', 'test.txt'), '456') + write_data(join(src_dir, 'test_dir2', 'subdir2', 'test.py'), '456') + + + # testing glob-like patterns + try: + patterns = shutil.ignore_patterns('*.tmp', 'test_dir2') + shutil.copytree(src_dir, dst_dir, ignore=patterns) + # checking the result: some elements should not be copied + self.assertTrue(exists(join(dst_dir, 'test.txt'))) + self.assertTrue(not exists(join(dst_dir, 'test.tmp'))) + self.assertTrue(not exists(join(dst_dir, 'test_dir2'))) + finally: + if os.path.exists(dst_dir): + shutil.rmtree(dst_dir) + try: + patterns = shutil.ignore_patterns('*.tmp', 'subdir*') + shutil.copytree(src_dir, dst_dir, ignore=patterns) + # checking the result: some elements should not be copied + self.assertTrue(not exists(join(dst_dir, 'test.tmp'))) + self.assertTrue(not exists(join(dst_dir, 'test_dir2', 'subdir2'))) + self.assertTrue(not exists(join(dst_dir, 'test_dir2', 'subdir'))) + finally: + if os.path.exists(dst_dir): + shutil.rmtree(dst_dir) + + # testing callable-style + try: + def _filter(src, names): + res = [] + for name in names: + path = os.path.join(src, name) + + if (os.path.isdir(path) and + path.split()[-1] == 'subdir'): + res.append(name) + elif os.path.splitext(path)[-1] in ('.py'): + res.append(name) + return res + + shutil.copytree(src_dir, dst_dir, ignore=_filter) + + # checking the result: some elements should not be copied + self.assertTrue(not exists(join(dst_dir, 'test_dir2', 'subdir2', + 'test.py'))) + self.assertTrue(not exists(join(dst_dir, 'test_dir2', 'subdir'))) + + finally: + if os.path.exists(dst_dir): + shutil.rmtree(dst_dir) + finally: + shutil.rmtree(src_dir) + shutil.rmtree(os.path.dirname(dst_dir)) + + if hasattr(os, "symlink"): + def test_dont_copy_file_onto_link_to_itself(self): + # bug 851123. + os.mkdir(TESTFN) + src = os.path.join(TESTFN, 'cheese') + dst = os.path.join(TESTFN, 'shop') + try: + f = open(src, 'w') + f.write('cheddar') + f.close() + + os.link(src, dst) + self.assertRaises(shutil.Error, shutil.copyfile, src, dst) + with open(src, 'r') as f: + self.assertEqual(f.read(), 'cheddar') + os.remove(dst) + + # Using `src` here would mean we end up with a symlink pointing + # to TESTFN/TESTFN/cheese, while it should point at + # TESTFN/cheese. + os.symlink('cheese', dst) + self.assertRaises(shutil.Error, shutil.copyfile, src, dst) + with open(src, 'r') as f: + self.assertEqual(f.read(), 'cheddar') + os.remove(dst) + finally: + try: + shutil.rmtree(TESTFN) + except OSError: + pass + + def test_rmtree_on_symlink(self): + # bug 1669. + os.mkdir(TESTFN) + try: + src = os.path.join(TESTFN, 'cheese') + dst = os.path.join(TESTFN, 'shop') + os.mkdir(src) + os.symlink(src, dst) + self.assertRaises(OSError, shutil.rmtree, dst) + finally: + shutil.rmtree(TESTFN, ignore_errors=True) + + if hasattr(os, "mkfifo"): + # Issue #3002: copyfile and copytree block indefinitely on named pipes + def test_copyfile_named_pipe(self): + os.mkfifo(TESTFN) + try: + self.assertRaises(shutil.SpecialFileError, + shutil.copyfile, TESTFN, TESTFN2) + self.assertRaises(shutil.SpecialFileError, + shutil.copyfile, __file__, TESTFN) + finally: + os.remove(TESTFN) + + def test_copytree_named_pipe(self): + os.mkdir(TESTFN) + try: + subdir = os.path.join(TESTFN, "subdir") + os.mkdir(subdir) + pipe = os.path.join(subdir, "mypipe") + os.mkfifo(pipe) + try: + shutil.copytree(TESTFN, TESTFN2) + except shutil.Error as e: + errors = e.args[0] + self.assertEqual(len(errors), 1) + src, dst, error_msg = errors[0] + self.assertEqual("`%s` is a named pipe" % pipe, error_msg) + else: + self.fail("shutil.Error should have been raised") + finally: + shutil.rmtree(TESTFN, ignore_errors=True) + shutil.rmtree(TESTFN2, ignore_errors=True) + + @unittest.skipUnless(hasattr(os, 'chflags') and + hasattr(errno, 'EOPNOTSUPP') and + hasattr(errno, 'ENOTSUP'), + "requires os.chflags, EOPNOTSUPP & ENOTSUP") + def test_copystat_handles_harmless_chflags_errors(self): + tmpdir = self.mkdtemp() + file1 = os.path.join(tmpdir, 'file1') + file2 = os.path.join(tmpdir, 'file2') + self.write_file(file1, 'xxx') + self.write_file(file2, 'xxx') + + def make_chflags_raiser(err): + ex = OSError() + + def _chflags_raiser(path, flags): + ex.errno = err + raise ex + return _chflags_raiser + old_chflags = os.chflags + try: + for err in errno.EOPNOTSUPP, errno.ENOTSUP: + os.chflags = make_chflags_raiser(err) + shutil.copystat(file1, file2) + # assert others errors break it + os.chflags = make_chflags_raiser(errno.EOPNOTSUPP + errno.ENOTSUP) + self.assertRaises(OSError, shutil.copystat, file1, file2) + finally: + os.chflags = old_chflags + + @unittest.skipUnless(zlib, "requires zlib") + def test_make_tarball(self): + # creating something to tar + tmpdir = self.mkdtemp() + self.write_file([tmpdir, 'file1'], 'xxx') + self.write_file([tmpdir, 'file2'], 'xxx') + os.mkdir(os.path.join(tmpdir, 'sub')) + self.write_file([tmpdir, 'sub', 'file3'], 'xxx') + + tmpdir2 = self.mkdtemp() + # force shutil to create the directory + os.rmdir(tmpdir2) + unittest.skipUnless(splitdrive(tmpdir)[0] == splitdrive(tmpdir2)[0], + "source and target should be on same drive") + + base_name = os.path.join(tmpdir2, 'archive') + + # working with relative paths to avoid tar warnings + old_dir = os.getcwd() + os.chdir(tmpdir) + try: + _make_tarball(splitdrive(base_name)[1], '.') + finally: + os.chdir(old_dir) + + # check if the compressed tarball was created + tarball = base_name + '.tar.gz' + self.assertTrue(os.path.exists(tarball)) + + # trying an uncompressed one + base_name = os.path.join(tmpdir2, 'archive') + old_dir = os.getcwd() + os.chdir(tmpdir) + try: + _make_tarball(splitdrive(base_name)[1], '.', compress=None) + finally: + os.chdir(old_dir) + tarball = base_name + '.tar' + self.assertTrue(os.path.exists(tarball)) + + def _tarinfo(self, path): + tar = tarfile.open(path) + try: + names = tar.getnames() + names.sort() + return tuple(names) + finally: + tar.close() + + def _create_files(self): + # creating something to tar + tmpdir = self.mkdtemp() + dist = os.path.join(tmpdir, 'dist') + os.mkdir(dist) + self.write_file([dist, 'file1'], 'xxx') + self.write_file([dist, 'file2'], 'xxx') + os.mkdir(os.path.join(dist, 'sub')) + self.write_file([dist, 'sub', 'file3'], 'xxx') + os.mkdir(os.path.join(dist, 'sub2')) + tmpdir2 = self.mkdtemp() + base_name = os.path.join(tmpdir2, 'archive') + return tmpdir, tmpdir2, base_name + + @unittest.skipUnless(zlib, "Requires zlib") + @unittest.skipUnless(find_executable('tar') and find_executable('gzip'), + 'Need the tar command to run') + def test_tarfile_vs_tar(self): + tmpdir, tmpdir2, base_name = self._create_files() + old_dir = os.getcwd() + os.chdir(tmpdir) + try: + _make_tarball(base_name, 'dist') + finally: + os.chdir(old_dir) + + # check if the compressed tarball was created + tarball = base_name + '.tar.gz' + self.assertTrue(os.path.exists(tarball)) + + # now create another tarball using `tar` + tarball2 = os.path.join(tmpdir, 'archive2.tar.gz') + tar_cmd = ['tar', '-cf', 'archive2.tar', 'dist'] + gzip_cmd = ['gzip', '-f9', 'archive2.tar'] + old_dir = os.getcwd() + os.chdir(tmpdir) + try: + with captured_stdout() as s: + spawn(tar_cmd) + spawn(gzip_cmd) + finally: + os.chdir(old_dir) + + self.assertTrue(os.path.exists(tarball2)) + # let's compare both tarballs + self.assertEqual(self._tarinfo(tarball), self._tarinfo(tarball2)) + + # trying an uncompressed one + base_name = os.path.join(tmpdir2, 'archive') + old_dir = os.getcwd() + os.chdir(tmpdir) + try: + _make_tarball(base_name, 'dist', compress=None) + finally: + os.chdir(old_dir) + tarball = base_name + '.tar' + self.assertTrue(os.path.exists(tarball)) + + # now for a dry_run + base_name = os.path.join(tmpdir2, 'archive') + old_dir = os.getcwd() + os.chdir(tmpdir) + try: + _make_tarball(base_name, 'dist', compress=None, dry_run=True) + finally: + os.chdir(old_dir) + tarball = base_name + '.tar' + self.assertTrue(os.path.exists(tarball)) + + @unittest.skipUnless(zlib, "Requires zlib") + @unittest.skipUnless(ZIP_SUPPORT, 'Need zip support to run') + def test_make_zipfile(self): + # creating something to tar + tmpdir = self.mkdtemp() + self.write_file([tmpdir, 'file1'], 'xxx') + self.write_file([tmpdir, 'file2'], 'xxx') + + tmpdir2 = self.mkdtemp() + # force shutil to create the directory + os.rmdir(tmpdir2) + base_name = os.path.join(tmpdir2, 'archive') + _make_zipfile(base_name, tmpdir) + + # check if the compressed tarball was created + tarball = base_name + '.zip' + self.assertTrue(os.path.exists(tarball)) + + + def test_make_archive(self): + tmpdir = self.mkdtemp() + base_name = os.path.join(tmpdir, 'archive') + self.assertRaises(ValueError, make_archive, base_name, 'xxx') + + @unittest.skipUnless(zlib, "Requires zlib") + def test_make_archive_owner_group(self): + # testing make_archive with owner and group, with various combinations + # this works even if there's not gid/uid support + if UID_GID_SUPPORT: + group = grp.getgrgid(0)[0] + owner = pwd.getpwuid(0)[0] + else: + group = owner = 'root' + + base_dir, root_dir, base_name = self._create_files() + base_name = os.path.join(self.mkdtemp() , 'archive') + res = make_archive(base_name, 'zip', root_dir, base_dir, owner=owner, + group=group) + self.assertTrue(os.path.exists(res)) + + res = make_archive(base_name, 'zip', root_dir, base_dir) + self.assertTrue(os.path.exists(res)) + + res = make_archive(base_name, 'tar', root_dir, base_dir, + owner=owner, group=group) + self.assertTrue(os.path.exists(res)) + + res = make_archive(base_name, 'tar', root_dir, base_dir, + owner='kjhkjhkjg', group='oihohoh') + self.assertTrue(os.path.exists(res)) + + @unittest.skipUnless(zlib, "Requires zlib") + @unittest.skipUnless(UID_GID_SUPPORT, "Requires grp and pwd support") + def test_tarfile_root_owner(self): + tmpdir, tmpdir2, base_name = self._create_files() + old_dir = os.getcwd() + os.chdir(tmpdir) + group = grp.getgrgid(0)[0] + owner = pwd.getpwuid(0)[0] + try: + archive_name = _make_tarball(base_name, 'dist', compress=None, + owner=owner, group=group) + finally: + os.chdir(old_dir) + + # check if the compressed tarball was created + self.assertTrue(os.path.exists(archive_name)) + + # now checks the rights + archive = tarfile.open(archive_name) + try: + for member in archive.getmembers(): + self.assertEqual(member.uid, 0) + self.assertEqual(member.gid, 0) + finally: + archive.close() + + def test_make_archive_cwd(self): + current_dir = os.getcwd() + def _breaks(*args, **kw): + raise RuntimeError() + + register_archive_format('xxx', _breaks, [], 'xxx file') + try: + try: + make_archive('xxx', 'xxx', root_dir=self.mkdtemp()) + except Exception: + pass + self.assertEqual(os.getcwd(), current_dir) + finally: + unregister_archive_format('xxx') + + def test_register_archive_format(self): + + self.assertRaises(TypeError, register_archive_format, 'xxx', 1) + self.assertRaises(TypeError, register_archive_format, 'xxx', lambda: x, + 1) + self.assertRaises(TypeError, register_archive_format, 'xxx', lambda: x, + [(1, 2), (1, 2, 3)]) + + register_archive_format('xxx', lambda: x, [(1, 2)], 'xxx file') + formats = [name for name, params in get_archive_formats()] + self.assertIn('xxx', formats) + + unregister_archive_format('xxx') + formats = [name for name, params in get_archive_formats()] + self.assertNotIn('xxx', formats) + + +class TestMove(unittest.TestCase): + + def setUp(self): + filename = "foo" + self.src_dir = tempfile.mkdtemp() + self.dst_dir = tempfile.mkdtemp() + self.src_file = os.path.join(self.src_dir, filename) + self.dst_file = os.path.join(self.dst_dir, filename) + # Try to create a dir in the current directory, hoping that it is + # not located on the same filesystem as the system tmp dir. + try: + self.dir_other_fs = tempfile.mkdtemp( + dir=os.path.dirname(__file__)) + self.file_other_fs = os.path.join(self.dir_other_fs, + filename) + except OSError: + self.dir_other_fs = None + with open(self.src_file, "wb") as f: + f.write("spam") + + def tearDown(self): + for d in (self.src_dir, self.dst_dir, self.dir_other_fs): + try: + if d: + shutil.rmtree(d) + except: + pass + + def _check_move_file(self, src, dst, real_dst): + with open(src, "rb") as f: + contents = f.read() + shutil.move(src, dst) + with open(real_dst, "rb") as f: + self.assertEqual(contents, f.read()) + self.assertFalse(os.path.exists(src)) + + def _check_move_dir(self, src, dst, real_dst): + contents = sorted(os.listdir(src)) + shutil.move(src, dst) + self.assertEqual(contents, sorted(os.listdir(real_dst))) + self.assertFalse(os.path.exists(src)) + + def test_move_file(self): + # Move a file to another location on the same filesystem. + self._check_move_file(self.src_file, self.dst_file, self.dst_file) + + def test_move_file_to_dir(self): + # Move a file inside an existing dir on the same filesystem. + self._check_move_file(self.src_file, self.dst_dir, self.dst_file) + + def test_move_file_other_fs(self): + # Move a file to an existing dir on another filesystem. + if not self.dir_other_fs: + # skip + return + self._check_move_file(self.src_file, self.file_other_fs, + self.file_other_fs) + + def test_move_file_to_dir_other_fs(self): + # Move a file to another location on another filesystem. + if not self.dir_other_fs: + # skip + return + self._check_move_file(self.src_file, self.dir_other_fs, + self.file_other_fs) + + def test_move_dir(self): + # Move a dir to another location on the same filesystem. + dst_dir = tempfile.mktemp() + try: + self._check_move_dir(self.src_dir, dst_dir, dst_dir) + finally: + try: + shutil.rmtree(dst_dir) + except: + pass + + def test_move_dir_other_fs(self): + # Move a dir to another location on another filesystem. + if not self.dir_other_fs: + # skip + return + dst_dir = tempfile.mktemp(dir=self.dir_other_fs) + try: + self._check_move_dir(self.src_dir, dst_dir, dst_dir) + finally: + try: + shutil.rmtree(dst_dir) + except: + pass + + def test_move_dir_to_dir(self): + # Move a dir inside an existing dir on the same filesystem. + self._check_move_dir(self.src_dir, self.dst_dir, + os.path.join(self.dst_dir, os.path.basename(self.src_dir))) + + def test_move_dir_to_dir_other_fs(self): + # Move a dir inside an existing dir on another filesystem. + if not self.dir_other_fs: + # skip + return + self._check_move_dir(self.src_dir, self.dir_other_fs, + os.path.join(self.dir_other_fs, os.path.basename(self.src_dir))) + + def test_existing_file_inside_dest_dir(self): + # A file with the same name inside the destination dir already exists. + with open(self.dst_file, "wb"): + pass + self.assertRaises(shutil.Error, shutil.move, self.src_file, self.dst_dir) + + def test_dont_move_dir_in_itself(self): + # Moving a dir inside itself raises an Error. + dst = os.path.join(self.src_dir, "bar") + self.assertRaises(shutil.Error, shutil.move, self.src_dir, dst) + + def test_destinsrc_false_negative(self): + os.mkdir(TESTFN) + try: + for src, dst in [('srcdir', 'srcdir/dest')]: + src = os.path.join(TESTFN, src) + dst = os.path.join(TESTFN, dst) + self.assertTrue(shutil._destinsrc(src, dst), + msg='_destinsrc() wrongly concluded that ' + 'dst (%s) is not in src (%s)' % (dst, src)) + finally: + shutil.rmtree(TESTFN, ignore_errors=True) + + def test_destinsrc_false_positive(self): + os.mkdir(TESTFN) + try: + for src, dst in [('srcdir', 'src/dest'), ('srcdir', 'srcdir.new')]: + src = os.path.join(TESTFN, src) + dst = os.path.join(TESTFN, dst) + self.assertFalse(shutil._destinsrc(src, dst), + msg='_destinsrc() wrongly concluded that ' + 'dst (%s) is in src (%s)' % (dst, src)) + finally: + shutil.rmtree(TESTFN, ignore_errors=True) + + +class TestCopyFile(unittest.TestCase): + + _delete = False + + class Faux(object): + _entered = False + _exited_with = None + _raised = False + def __init__(self, raise_in_exit=False, suppress_at_exit=True): + self._raise_in_exit = raise_in_exit + self._suppress_at_exit = suppress_at_exit + def read(self, *args): + return '' + def __enter__(self): + self._entered = True + def __exit__(self, exc_type, exc_val, exc_tb): + self._exited_with = exc_type, exc_val, exc_tb + if self._raise_in_exit: + self._raised = True + raise IOError("Cannot close") + return self._suppress_at_exit + + def tearDown(self): + if self._delete: + del shutil.open + + def _set_shutil_open(self, func): + shutil.open = func + self._delete = True + + def test_w_source_open_fails(self): + def _open(filename, mode='r'): + if filename == 'srcfile': + raise IOError('Cannot open "srcfile"') + assert 0 # shouldn't reach here. + + self._set_shutil_open(_open) + + self.assertRaises(IOError, shutil.copyfile, 'srcfile', 'destfile') + + def test_w_dest_open_fails(self): + + srcfile = self.Faux() + + def _open(filename, mode='r'): + if filename == 'srcfile': + return srcfile + if filename == 'destfile': + raise IOError('Cannot open "destfile"') + assert 0 # shouldn't reach here. + + self._set_shutil_open(_open) + + shutil.copyfile('srcfile', 'destfile') + self.assertTrue(srcfile._entered) + self.assertTrue(srcfile._exited_with[0] is IOError) + self.assertEqual(srcfile._exited_with[1].args, + ('Cannot open "destfile"',)) + + def test_w_dest_close_fails(self): + + srcfile = self.Faux() + destfile = self.Faux(True) + + def _open(filename, mode='r'): + if filename == 'srcfile': + return srcfile + if filename == 'destfile': + return destfile + assert 0 # shouldn't reach here. + + self._set_shutil_open(_open) + + shutil.copyfile('srcfile', 'destfile') + self.assertTrue(srcfile._entered) + self.assertTrue(destfile._entered) + self.assertTrue(destfile._raised) + self.assertTrue(srcfile._exited_with[0] is IOError) + self.assertEqual(srcfile._exited_with[1].args, + ('Cannot close',)) + + def test_w_source_close_fails(self): + + srcfile = self.Faux(True) + destfile = self.Faux() + + def _open(filename, mode='r'): + if filename == 'srcfile': + return srcfile + if filename == 'destfile': + return destfile + assert 0 # shouldn't reach here. + + self._set_shutil_open(_open) + + self.assertRaises(IOError, + shutil.copyfile, 'srcfile', 'destfile') + self.assertTrue(srcfile._entered) + self.assertTrue(destfile._entered) + self.assertFalse(destfile._raised) + self.assertTrue(srcfile._exited_with[0] is None) + self.assertTrue(srcfile._raised) + + def test_move_dir_caseinsensitive(self): + # Renames a folder to the same name + # but a different case. + + self.src_dir = tempfile.mkdtemp() + dst_dir = os.path.join( + os.path.dirname(self.src_dir), + os.path.basename(self.src_dir).upper()) + self.assertNotEqual(self.src_dir, dst_dir) + + try: + shutil.move(self.src_dir, dst_dir) + self.assertTrue(os.path.isdir(dst_dir)) + finally: + if os.path.exists(dst_dir): + os.rmdir(dst_dir) + + + +def test_main(): + test_support.run_unittest(TestShutil, TestMove, TestCopyFile) + +if __name__ == '__main__': + test_main() |