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tests/test_pristine_tar.py
 
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# Copyright (C) 2012-2018 Jelmer Vernooij <jelmer@jelmer.uk>
 
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#
 
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# This program is free software; you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
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# the Free Software Foundation; either version 2 of the License, or
 
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# (at your option) any later version.
 
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#
 
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# This program is distributed in the hope that it will be useful,
 
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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# GNU General Public License for more details.
 
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#
 
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# You should have received a copy of the GNU General Public License
 
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# along with this program; if not, write to the Free Software
 
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
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"""Tests for pristine tar extraction code."""
 
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from __future__ import absolute_import
 
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from base64 import standard_b64encode
 
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from ..pristine_tar import (
 
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    get_pristine_tar_tree,
 
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    revision_pristine_tar_data,
 
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    read_git_pristine_tar_data,
 
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    store_git_pristine_tar_data,
 
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    )
 
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from ....revision import Revision
 
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from ....tests import TestCase
 
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from dulwich.objects import (
 
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    Blob,
 
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    Tree,
 
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    )
 
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from dulwich.repo import (
 
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    MemoryRepo as GitMemoryRepo,
 
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    )
 
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import stat
 
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class RevisionPristineTarDataTests(TestCase):
 
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    def test_pristine_tar_delta_unknown(self):
 
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        rev = Revision("myrevid")
 
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        self.assertRaises(KeyError,
 
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            revision_pristine_tar_data, rev)
 
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    def test_pristine_tar_delta_gz(self):
 
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        rev = Revision("myrevid")
 
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        rev.properties["deb-pristine-delta"] = standard_b64encode("bla")
 
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        self.assertEquals(("bla", "gz"), revision_pristine_tar_data(rev))
 
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class ReadPristineTarData(TestCase):
 
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    def test_read_pristine_tar_data_no_branch(self):
 
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        r = GitMemoryRepo()
 
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        self.assertRaises(KeyError, read_git_pristine_tar_data,
 
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            r, "foo")
 
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    def test_read_pristine_tar_data_no_file(self):
 
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        r = GitMemoryRepo()
 
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        t = Tree()
 
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        b = Blob.from_string("README")
 
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        r.object_store.add_object(b)
 
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        t.add("README", stat.S_IFREG | 0644, b.id)
 
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        r.object_store.add_object(t)
 
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        r.do_commit("Add README", tree=t.id,
 
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                    ref='refs/heads/pristine-tar')
 
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        self.assertRaises(KeyError, read_git_pristine_tar_data,
 
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            r, "foo")
 
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    def test_read_pristine_tar_data(self):
 
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        r = GitMemoryRepo()
 
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        delta = Blob.from_string("some yummy data")
 
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        r.object_store.add_object(delta)
 
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        idfile = Blob.from_string("someid")
 
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        r.object_store.add_object(idfile)
 
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        t = Tree()
 
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        t.add("foo.delta", stat.S_IFREG | 0644, delta.id)
 
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        t.add("foo.id", stat.S_IFREG | 0644, idfile.id)
 
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        r.object_store.add_object(t)
 
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        r.do_commit("pristine tar delta for foo", tree=t.id,
 
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                    ref='refs/heads/pristine-tar')
 
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        self.assertEquals(
 
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            ("some yummy data", "someid"),
 
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            read_git_pristine_tar_data(r, 'foo'))
 
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class StoreGitPristineTarData(TestCase):
 
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    def test_store_new(self):
 
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        r = GitMemoryRepo()
 
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        cid = store_git_pristine_tar_data(r, "foo", "mydelta", "myid")
 
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        tree = get_pristine_tar_tree(r)
 
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        self.assertEquals(
 
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            (stat.S_IFREG | 0644, "7b02de8ac4162e64f402c43487d8a40a505482e1"),
 
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            tree["README"])
 
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        self.assertEquals(r[cid].tree, tree.id)
 
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        self.assertEquals(r[tree["foo.delta"][1]].data, "mydelta")
 
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        self.assertEquals(r[tree["foo.id"][1]].data, "myid")
 
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        self.assertEquals(("mydelta", "myid"),
 
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            read_git_pristine_tar_data(r, "foo"))