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# test_archive.py -- tests for archive

# Copyright (C) 2015 Jelmer Vernooij <jelmer@jelmer.uk>

#

# Dulwich is dual-licensed under the Apache License, Version 2.0 and the GNU

# General Public License as public by the Free Software Foundation; version 2.0

# or (at your option) any later version. You can redistribute it and/or

# modify it under the terms of either of these two licenses.

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

#

# You should have received a copy of the licenses; if not, see

# <http://www.gnu.org/licenses/> for a copy of the GNU General Public License

# and <http://www.apache.org/licenses/LICENSE-2.0> for a copy of the Apache

# License, Version 2.0.

#

"""Tests for archive support."""

from io import BytesIO

import tarfile

from dulwich.archive import tar_stream

from dulwich.object_store import (

    MemoryObjectStore,

    )

from dulwich.objects import (

    Blob,

    Tree,

    )

from dulwich.tests import (

    TestCase,

    )

from dulwich.tests.utils import (

    build_commit_graph,

    )

class ArchiveTests(TestCase):

    def test_empty(self):

        store = MemoryObjectStore()

        c1, c2, c3 = build_commit_graph(store, [[1], [2, 1], [3, 1, 2]])

        tree = store[c3.tree]

        stream = b''.join(tar_stream(store, tree, 10))

        out = BytesIO(stream)

        tf = tarfile.TarFile(fileobj=out)

        self.addCleanup(tf.close)

        self.assertEqual([], tf.getnames())

    def test_simple(self):

        self.skipTest("known to fail on python2.6 and 3.4; needs debugging")

        store = MemoryObjectStore()

        b1 = Blob.from_string(b"somedata")

        store.add_object(b1)

        t1 = Tree()

        t1.add(b"somename", 0o100644, b1.id)

        store.add_object(t1)

        stream = b''.join(tar_stream(store, t1, 10))

        out = BytesIO(stream)

        tf = tarfile.TarFile(fileobj=out)

        self.addCleanup(tf.close)

        self.assertEqual(["somename"], tf.getnames())