Python shutil.open() Examples

The following are 30 code examples for showing how to use shutil.open(). These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example.

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Example 1
Project: ironpython2   Author: IronLanguages   File: test_shutil.py    License: Apache License 2.0 6 votes vote down vote up
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) 
Example 2
Project: ironpython2   Author: IronLanguages   File: test_shutil.py    License: Apache License 2.0 6 votes vote down vote up
def test_tarfile_root_owner(self):
        root_dir, base_dir = self._create_files()
        base_name = os.path.join(self.mkdtemp(), 'archive')
        group = grp.getgrgid(0)[0]
        owner = pwd.getpwuid(0)[0]
        with support.change_cwd(root_dir):
            archive_name = make_archive(base_name, 'gztar', root_dir, 'dist',
                                        owner=owner, group=group)

        # check if the compressed tarball was created
        self.assertTrue(os.path.isfile(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() 
Example 3
Project: ironpython2   Author: IronLanguages   File: test_shutil.py    License: Apache License 2.0 6 votes vote down vote up
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") 
Example 4
Project: ironpython2   Author: IronLanguages   File: test_shutil.py    License: Apache License 2.0 6 votes vote down vote up
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"',)) 
Example 5
Project: BinderFilter   Author: dxwu   File: test_shutil.py    License: MIT License 6 votes vote down vote up
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) 
Example 6
Project: BinderFilter   Author: dxwu   File: test_shutil.py    License: MIT License 6 votes vote down vote up
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") 
Example 7
Project: oss-ftp   Author: aliyun   File: test_shutil.py    License: MIT License 6 votes vote down vote up
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) 
Example 8
Project: oss-ftp   Author: aliyun   File: test_shutil.py    License: MIT License 6 votes vote down vote up
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") 
Example 9
Project: Fluid-Designer   Author: Microvellum   File: test_shutil.py    License: GNU General Public License v3.0 6 votes vote down vote up
def test_rmtree_uses_safe_fd_version_if_available(self):
        _use_fd_functions = ({os.open, os.stat, os.unlink, os.rmdir} <=
                             os.supports_dir_fd and
                             os.listdir in os.supports_fd and
                             os.stat in os.supports_follow_symlinks)
        if _use_fd_functions:
            self.assertTrue(shutil._use_fd_functions)
            self.assertTrue(shutil.rmtree.avoids_symlink_attacks)
            tmp_dir = self.mkdtemp()
            d = os.path.join(tmp_dir, 'a')
            os.mkdir(d)
            try:
                real_rmtree = shutil._rmtree_safe_fd
                class Called(Exception): pass
                def _raiser(*args, **kwargs):
                    raise Called
                shutil._rmtree_safe_fd = _raiser
                self.assertRaises(Called, shutil.rmtree, d)
            finally:
                shutil._rmtree_safe_fd = real_rmtree
        else:
            self.assertFalse(shutil._use_fd_functions)
            self.assertFalse(shutil.rmtree.avoids_symlink_attacks) 
Example 10
Project: Fluid-Designer   Author: Microvellum   File: test_shutil.py    License: GNU General Public License v3.0 6 votes vote down vote up
def test_dont_copy_file_onto_symlink_to_itself(self):
        # bug 851123.
        os.mkdir(TESTFN)
        src = os.path.join(TESTFN, 'cheese')
        dst = os.path.join(TESTFN, 'shop')
        try:
            with open(src, 'w') as f:
                f.write('cheddar')
            # 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.SameFileError, shutil.copyfile, src, dst)
            with open(src, 'r') as f:
                self.assertEqual(f.read(), 'cheddar')
            os.remove(dst)
        finally:
            shutil.rmtree(TESTFN, ignore_errors=True) 
Example 11
Project: Fluid-Designer   Author: Microvellum   File: test_shutil.py    License: GNU General Public License v3.0 6 votes vote down vote up
def test_tarfile_root_owner(self):
        root_dir, base_dir = self._create_files()
        base_name = os.path.join(self.mkdtemp(), 'archive')
        group = grp.getgrgid(0)[0]
        owner = pwd.getpwuid(0)[0]
        with support.change_cwd(root_dir):
            archive_name = make_archive(base_name, 'gztar', root_dir, 'dist',
                                        owner=owner, group=group)

        # check if the compressed tarball was created
        self.assertTrue(os.path.isfile(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() 
Example 12
Project: Fluid-Designer   Author: Microvellum   File: test_shutil.py    License: GNU General Public License v3.0 6 votes vote down vote up
def test_w_dest_open_fails(self):

        srcfile = self.Faux()

        def _open(filename, mode='r'):
            if filename == 'srcfile':
                return srcfile
            if filename == 'destfile':
                raise OSError('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 OSError)
        self.assertEqual(srcfile._exited_with[1].args,
                         ('Cannot open "destfile"',)) 
Example 13
Project: ironpython3   Author: IronLanguages   File: test_shutil.py    License: Apache License 2.0 6 votes vote down vote up
def test_rmtree_uses_safe_fd_version_if_available(self):
        _use_fd_functions = ({os.open, os.stat, os.unlink, os.rmdir} <=
                             os.supports_dir_fd and
                             os.listdir in os.supports_fd and
                             os.stat in os.supports_follow_symlinks)
        if _use_fd_functions:
            self.assertTrue(shutil._use_fd_functions)
            self.assertTrue(shutil.rmtree.avoids_symlink_attacks)
            tmp_dir = self.mkdtemp()
            d = os.path.join(tmp_dir, 'a')
            os.mkdir(d)
            try:
                real_rmtree = shutil._rmtree_safe_fd
                class Called(Exception): pass
                def _raiser(*args, **kwargs):
                    raise Called
                shutil._rmtree_safe_fd = _raiser
                self.assertRaises(Called, shutil.rmtree, d)
            finally:
                shutil._rmtree_safe_fd = real_rmtree
        else:
            self.assertFalse(shutil._use_fd_functions)
            self.assertFalse(shutil.rmtree.avoids_symlink_attacks) 
Example 14
Project: ironpython3   Author: IronLanguages   File: test_shutil.py    License: Apache License 2.0 6 votes vote down vote up
def test_dont_copy_file_onto_symlink_to_itself(self):
        # bug 851123.
        os.mkdir(TESTFN)
        src = os.path.join(TESTFN, 'cheese')
        dst = os.path.join(TESTFN, 'shop')
        try:
            with open(src, 'w') as f:
                f.write('cheddar')
            # 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.SameFileError, shutil.copyfile, src, dst)
            with open(src, 'r') as f:
                self.assertEqual(f.read(), 'cheddar')
            os.remove(dst)
        finally:
            shutil.rmtree(TESTFN, ignore_errors=True) 
Example 15
Project: ironpython3   Author: IronLanguages   File: test_shutil.py    License: Apache License 2.0 6 votes vote down vote up
def test_tarfile_root_owner(self):
        root_dir, base_dir = self._create_files()
        base_name = os.path.join(self.mkdtemp(), 'archive')
        group = grp.getgrgid(0)[0]
        owner = pwd.getpwuid(0)[0]
        with support.change_cwd(root_dir):
            archive_name = make_archive(base_name, 'gztar', root_dir, 'dist',
                                        owner=owner, group=group)

        # check if the compressed tarball was created
        self.assertTrue(os.path.isfile(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() 
Example 16
Project: ironpython3   Author: IronLanguages   File: test_shutil.py    License: Apache License 2.0 6 votes vote down vote up
def test_w_dest_open_fails(self):

        srcfile = self.Faux()

        def _open(filename, mode='r'):
            if filename == 'srcfile':
                return srcfile
            if filename == 'destfile':
                raise OSError('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 OSError)
        self.assertEqual(srcfile._exited_with[1].args,
                         ('Cannot open "destfile"',)) 
Example 17
Project: gcblue   Author: gcblue   File: test_shutil.py    License: BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up
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) 
Example 18
Project: gcblue   Author: gcblue   File: test_shutil.py    License: BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up
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") 
Example 19
Project: Project-New-Reign---Nemesis-Main   Author: ShikyoKira   File: test_shutil.py    License: GNU General Public License v3.0 6 votes vote down vote up
def test_rmtree_uses_safe_fd_version_if_available(self):
        _use_fd_functions = ({os.open, os.stat, os.unlink, os.rmdir} <=
                             os.supports_dir_fd and
                             os.listdir in os.supports_fd and
                             os.stat in os.supports_follow_symlinks)
        if _use_fd_functions:
            self.assertTrue(shutil._use_fd_functions)
            self.assertTrue(shutil.rmtree.avoids_symlink_attacks)
            tmp_dir = self.mkdtemp()
            d = os.path.join(tmp_dir, 'a')
            os.mkdir(d)
            try:
                real_rmtree = shutil._rmtree_safe_fd
                class Called(Exception): pass
                def _raiser(*args, **kwargs):
                    raise Called
                shutil._rmtree_safe_fd = _raiser
                self.assertRaises(Called, shutil.rmtree, d)
            finally:
                shutil._rmtree_safe_fd = real_rmtree
        else:
            self.assertFalse(shutil._use_fd_functions)
            self.assertFalse(shutil.rmtree.avoids_symlink_attacks) 
Example 20
Project: Project-New-Reign---Nemesis-Main   Author: ShikyoKira   File: test_shutil.py    License: GNU General Public License v3.0 6 votes vote down vote up
def test_dont_copy_file_onto_symlink_to_itself(self):
        # bug 851123.
        os.mkdir(TESTFN)
        src = os.path.join(TESTFN, 'cheese')
        dst = os.path.join(TESTFN, 'shop')
        try:
            with open(src, 'w') as f:
                f.write('cheddar')
            # 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.SameFileError, shutil.copyfile, src, dst)
            with open(src, 'r') as f:
                self.assertEqual(f.read(), 'cheddar')
            os.remove(dst)
        finally:
            shutil.rmtree(TESTFN, ignore_errors=True) 
Example 21
Project: Project-New-Reign---Nemesis-Main   Author: ShikyoKira   File: test_shutil.py    License: GNU General Public License v3.0 6 votes vote down vote up
def test_tarfile_root_owner(self):
        root_dir, base_dir = self._create_files()
        base_name = os.path.join(self.mkdtemp(), 'archive')
        group = grp.getgrgid(0)[0]
        owner = pwd.getpwuid(0)[0]
        with support.change_cwd(root_dir):
            archive_name = make_archive(base_name, 'gztar', root_dir, 'dist',
                                        owner=owner, group=group)

        # check if the compressed tarball was created
        self.assertTrue(os.path.isfile(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() 
Example 22
Project: Project-New-Reign---Nemesis-Main   Author: ShikyoKira   File: test_shutil.py    License: GNU General Public License v3.0 6 votes vote down vote up
def test_w_dest_open_fails(self):

        srcfile = self.Faux()

        def _open(filename, mode='r'):
            if filename == 'srcfile':
                return srcfile
            if filename == 'destfile':
                raise OSError('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 OSError)
        self.assertEqual(srcfile._exited_with[1].args,
                         ('Cannot open "destfile"',)) 
Example 23
Project: ironpython2   Author: IronLanguages   File: test_shutil.py    License: Apache License 2.0 5 votes vote down vote up
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() 
Example 24
Project: ironpython2   Author: IronLanguages   File: test_shutil.py    License: Apache License 2.0 5 votes vote down vote up
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 
Example 25
Project: ironpython2   Author: IronLanguages   File: test_shutil.py    License: Apache License 2.0 5 votes vote down vote up
def test_make_tarball(self):
        # creating something to tar
        root_dir, base_dir = self._create_files('')

        tmpdir2 = self.mkdtemp()
        # force shutil to create the directory
        os.rmdir(tmpdir2)
        # working with relative paths
        work_dir = os.path.dirname(tmpdir2)
        rel_base_name = os.path.join(os.path.basename(tmpdir2), 'archive')

        with support.change_cwd(work_dir):
            base_name = os.path.abspath(rel_base_name)
            tarball = make_archive(rel_base_name, 'gztar', root_dir, '.')

        # check if the compressed tarball was created
        self.assertEqual(tarball, base_name + '.tar.gz')
        self.assertTrue(os.path.isfile(tarball))
        self.assertTrue(tarfile.is_tarfile(tarball))
        with tarfile.open(tarball, 'r:gz') as tf:
            self.assertEqual(sorted(tf.getnames()),
                             ['.', './file1', './file2',
                              './sub', './sub/file3', './sub2'])

        # trying an uncompressed one
        with support.change_cwd(work_dir):
            tarball = make_archive(rel_base_name, 'tar', root_dir, '.')
        self.assertEqual(tarball, base_name + '.tar')
        self.assertTrue(os.path.isfile(tarball))
        self.assertTrue(tarfile.is_tarfile(tarball))
        with tarfile.open(tarball, 'r') as tf:
            self.assertEqual(sorted(tf.getnames()),
                             ['.', './file1', './file2',
                              './sub', './sub/file3', './sub2']) 
Example 26
Project: ironpython2   Author: IronLanguages   File: test_shutil.py    License: Apache License 2.0 5 votes vote down vote up
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)) 
Example 27
Project: ironpython2   Author: IronLanguages   File: test_shutil.py    License: Apache License 2.0 5 votes vote down vote up
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) 
Example 28
Project: ironpython2   Author: IronLanguages   File: test_shutil.py    License: Apache License 2.0 5 votes vote down vote up
def _set_shutil_open(self, func):
        shutil.open = func
        self._delete = True 
Example 29
Project: BinderFilter   Author: dxwu   File: test_shutil.py    License: MIT License 5 votes vote down vote up
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() 
Example 30
Project: BinderFilter   Author: dxwu   File: test_shutil.py    License: MIT License 5 votes vote down vote up
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