/brz/remove-bazaar

# Copyright (C) 2010 Jelmer Vernooij <jelmer@samba.org>

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

"""Tests for bzr-git's object store."""

from dulwich.objects import (

    Blob,

    )

from ....branchbuilder import (

    BranchBuilder,

    )

from ....errors import (

    NoSuchRevision,

    )

from ....graph import (

    DictParentsProvider,

    Graph,

    )

from ....tests import (

    TestCase,

    TestCaseWithTransport,

    )

from ..cache import (

    DictGitShaMap,

    )

from ..object_store import (

    BazaarObjectStore,

    LRUTreeCache,

    _check_expected_sha,

    _find_missing_bzr_revids,

    _tree_to_objects,

    )

class ExpectedShaTests(TestCase):

    def setUp(self):

        super(ExpectedShaTests, self).setUp()

        self.obj = Blob()

        self.obj.data = "foo"

    def test_none(self):

        _check_expected_sha(None, self.obj)

    def test_hex(self):

        _check_expected_sha(self.obj.sha().hexdigest(), self.obj)

        self.assertRaises(AssertionError, _check_expected_sha, 

            "0" * 40, self.obj)

    def test_binary(self):

        _check_expected_sha(self.obj.sha().digest(), self.obj)

        self.assertRaises(AssertionError, _check_expected_sha, 

            "x" * 20, self.obj)

class FindMissingBzrRevidsTests(TestCase):

    def _find_missing(self, ancestry, want, have):

        return _find_missing_bzr_revids(

            Graph(DictParentsProvider(ancestry)),

            set(want), set(have))

    def test_simple(self):

        self.assertEquals(set(), self._find_missing({}, [], []))

    def test_up_to_date(self):

        self.assertEquals(set(),

                self._find_missing({"a": ["b"]}, ["a"], ["a"]))

    def test_one_missing(self):

        self.assertEquals(set(["a"]),

                self._find_missing({"a": ["b"]}, ["a"], ["b"]))

    def test_two_missing(self):

        self.assertEquals(set(["a", "b"]),

                self._find_missing({"a": ["b"], "b": ["c"]}, ["a"], ["c"]))

    def test_two_missing_history(self):

        self.assertEquals(set(["a", "b"]),

                self._find_missing({"a": ["b"], "b": ["c"], "c": ["d"]},

                    ["a"], ["c"]))

class LRUTreeCacheTests(TestCaseWithTransport):

    def setUp(self):

        super(LRUTreeCacheTests, self).setUp()

        self.branch = self.make_branch(".")

        self.branch.lock_write()

        self.addCleanup(self.branch.unlock)

        self.cache = LRUTreeCache(self.branch.repository)

    def test_get_not_present(self):

        self.assertRaises(NoSuchRevision, self.cache.revision_tree,

                "unknown")

    def test_revision_trees(self):

        self.assertRaises(NoSuchRevision, self.cache.revision_trees,

                ["unknown", "la"])

    def test_iter_revision_trees(self):

        self.assertRaises(NoSuchRevision, self.cache.iter_revision_trees,

                ["unknown", "la"])

    def test_get(self):

        bb = BranchBuilder(branch=self.branch)

        bb.start_series()

        revid = bb.build_snapshot(None,

            [('add', ('', None, 'directory', None)),

             ('add', ('foo', 'foo-id', 'file', 'a\nb\nc\nd\ne\n')),

             ])

        bb.finish_series()

        tree = self.cache.revision_tree(revid)

        self.assertEquals(revid, tree.get_revision_id())

class BazaarObjectStoreTests(TestCaseWithTransport):

    def setUp(self):

        super(BazaarObjectStoreTests, self).setUp()

        self.branch = self.make_branch(".")

        self.branch.lock_write()

        self.addCleanup(self.branch.unlock)

        self.store = BazaarObjectStore(self.branch.repository)

    def test_get_blob(self):

        b = Blob()

        b.data = 'a\nb\nc\nd\ne\n'

        self.store.lock_read()

        self.addCleanup(self.store.unlock)

        self.assertRaises(KeyError, self.store.__getitem__, b.id)

        bb = BranchBuilder(branch=self.branch)

        bb.start_series()

        bb.build_snapshot(None,

            [('add', ('', None, 'directory', None)),

             ('add', ('foo', 'foo-id', 'file', 'a\nb\nc\nd\ne\n')),

             ])

        bb.finish_series()

        # read locks cache

        self.assertRaises(KeyError, self.store.__getitem__, b.id)

        self.store.unlock()

        self.store.lock_read()

        self.assertEquals(b, self.store[b.id])

    def test_get_raw(self):

        b = Blob()

        b.data = 'a\nb\nc\nd\ne\n'

        self.store.lock_read()

        self.addCleanup(self.store.unlock)

        self.assertRaises(KeyError, self.store.get_raw, b.id)

        bb = BranchBuilder(branch=self.branch)

        bb.start_series()

        bb.build_snapshot(None,

            [('add', ('', None, 'directory', None)),

             ('add', ('foo', 'foo-id', 'file', 'a\nb\nc\nd\ne\n')),

             ])

        bb.finish_series()

        # read locks cache

        self.assertRaises(KeyError, self.store.get_raw, b.id)

        self.store.unlock()

        self.store.lock_read()

        self.assertEquals(b.as_raw_string(), self.store.get_raw(b.id)[1])

    def test_contains(self):

        b = Blob()

        b.data = 'a\nb\nc\nd\ne\n'

        self.store.lock_read()

        self.addCleanup(self.store.unlock)

        self.assertFalse(b.id in self.store)

        bb = BranchBuilder(branch=self.branch)

        bb.start_series()

        bb.build_snapshot(None,

            [('add', ('', None, 'directory', None)),

             ('add', ('foo', 'foo-id', 'file', 'a\nb\nc\nd\ne\n')),

             ])

        bb.finish_series()

        # read locks cache

        self.assertFalse(b.id in self.store)

        self.store.unlock()

        self.store.lock_read()

        self.assertTrue(b.id in self.store)

class TreeToObjectsTests(TestCaseWithTransport):

    def setUp(self):

        super(TreeToObjectsTests, self).setUp()

        self.idmap = DictGitShaMap()

    def test_no_changes(self):

        tree = self.make_branch_and_tree('.')

        self.addCleanup(tree.lock_read().unlock)

        entries = list(_tree_to_objects(tree, [tree], self.idmap, {}))

        self.assertEquals([], entries)