/brz/remove-bazaar

# Copyright (C) 2007 Canonical Ltd

#

# 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 interfacing with a Git Branch"""

import dulwich

from dulwich.repo import (

    Repo as GitRepo,

    )

import os

from bzrlib import (

    errors,

    revision,

    )

from bzrlib.branch import (

    Branch,

    InterBranch,

    )

from bzrlib.bzrdir import (

    BzrDir,

    )

from bzrlib.repository import (

    Repository,

    )

from bzrlib.plugins.git import (

    LocalGitBzrDirFormat,

    branch,

    tests,

    )

from bzrlib.plugins.git.mapping import (

    default_mapping,

    )

class TestGitBranch(tests.TestCaseInTempDir):

    _test_needs_features = [tests.GitCommandFeature]

    def test_open_existing(self):

        GitRepo.init('.')

        d = BzrDir.open('.')

        thebranch = d.create_branch()

        self.assertIsInstance(thebranch, branch.GitBranch)

    def test_repr(self):

        GitRepo.init('.')

        d = BzrDir.open('.')

        thebranch = d.create_branch()

        self.assertEquals("<LocalGitBranch('file://%s/', 'HEAD')>" % self.test_dir, repr(thebranch))

    def test_last_revision_is_null(self):

        GitRepo.init('.')

        thedir = BzrDir.open('.')

        thebranch = thedir.create_branch()

        self.assertEqual(revision.NULL_REVISION, thebranch.last_revision())

        self.assertEqual((0, revision.NULL_REVISION),

                         thebranch.last_revision_info())

    def simple_commit_a(self):

        GitRepo.init('.')

        self.build_tree(['a'])

        tests.run_git('add', 'a')

        tests.run_git('commit', '-m', 'a')

    def test_last_revision_is_valid(self):

        self.simple_commit_a()

        head = tests.run_git('rev-parse', 'HEAD').strip()

        thebranch = Branch.open('.')

        self.assertEqual(default_mapping.revision_id_foreign_to_bzr(head),

                         thebranch.last_revision())

    def test_revision_history(self):

        self.simple_commit_a()

        reva = tests.run_git('rev-parse', 'HEAD').strip()

        self.build_tree(['b'])

        tests.run_git('add', 'b')

        tests.run_git('commit', '-m', 'b')

        revb = tests.run_git('rev-parse', 'HEAD').strip()

        thebranch = Branch.open('.')

        self.assertEqual([default_mapping.revision_id_foreign_to_bzr(r) for r in (reva, revb)],

                         thebranch.revision_history())

    def test_tag_annotated(self):

        self.simple_commit_a()

        reva = tests.run_git('rev-parse', 'HEAD').strip()

        tests.run_git('tag', '-a', '-m', 'add tag', 'foo')

        thebranch = Branch.open('.')

        self.assertEquals({"foo": default_mapping.revision_id_foreign_to_bzr(reva)},

                          thebranch.tags.get_tag_dict())

    def test_tag(self):

        self.simple_commit_a()

        reva = tests.run_git('rev-parse', 'HEAD').strip()

        tests.run_git('tag', '-m', 'add tag', 'foo')

        thebranch = Branch.open('.')

        self.assertEquals({"foo": default_mapping.revision_id_foreign_to_bzr(reva)},

                          thebranch.tags.get_tag_dict())

class TestWithGitBranch(tests.TestCaseWithTransport):

    def setUp(self):

        tests.TestCaseWithTransport.setUp(self)

        dulwich.repo.Repo.create(self.test_dir)

        d = BzrDir.open(self.test_dir)

        self.git_branch = d.create_branch()

    def test_get_parent(self):

        self.assertIs(None, self.git_branch.get_parent())

    def test_get_stacked_on_url(self):

        self.assertRaises(errors.UnstackableBranchFormat, 

            self.git_branch.get_stacked_on_url)

    def test_get_physical_lock_status(self):

        self.assertFalse(self.git_branch.get_physical_lock_status())

class TestGitBranchFormat(tests.TestCase):

    def setUp(self):

        super(TestGitBranchFormat, self).setUp()

        self.format = branch.GitBranchFormat()

    def test_get_format_description(self):

        self.assertEquals("Git Branch", self.format.get_format_description())

class BranchTests(tests.TestCaseInTempDir):

    def make_onerev_branch(self):

        os.mkdir("d")

        os.chdir("d")

        GitRepo.init('.')

        bb = tests.GitBranchBuilder()

        bb.set_file("foobar", "foo\nbar\n", False)

        mark = bb.commit("Somebody <somebody@someorg.org>", "mymsg")

        gitsha = bb.finish()[mark]

        os.chdir("..")

        return "d", gitsha

    def make_tworev_branch(self):

        os.mkdir("d")

        os.chdir("d")

        GitRepo.init('.')

        bb = tests.GitBranchBuilder()

        bb.set_file("foobar", "foo\nbar\n", False)

        mark1 = bb.commit("Somebody <somebody@someorg.org>", "mymsg")

        mark2 = bb.commit("Somebody <somebody@someorg.org>", "mymsg")

        marks = bb.finish()

        os.chdir("..")

        return "d", (marks[mark1], marks[mark2])

    def clone_git_branch(self, from_url, to_url):

        from_dir = BzrDir.open(from_url)

        to_dir = from_dir.sprout(to_url)

        return to_dir.open_branch()

    def test_single_rev(self):

        path, gitsha = self.make_onerev_branch()

        oldrepo = Repository.open(path)

        revid = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha)

        newbranch = self.clone_git_branch(path, "f")

        self.assertEquals([revid], newbranch.repository.all_revision_ids())

    def test_sprouted_tags(self):

        path, gitsha = self.make_onerev_branch()

        os.chdir(path)

        tests.run_git("tag", "lala")

        os.chdir(self.test_dir)

        oldrepo = Repository.open(path)

        revid = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha)

        newbranch = self.clone_git_branch(path, "f")

        self.assertEquals({"lala": revid}, newbranch.tags.get_tag_dict())

        self.assertEquals([revid], newbranch.repository.all_revision_ids())

    def test_interbranch_pull(self):

        path, (gitsha1, gitsha2) = self.make_tworev_branch()

        oldrepo = Repository.open(path)

        revid2 = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha2)

        newbranch = self.make_branch('g')

        inter_branch = InterBranch.get(Branch.open(path), newbranch)

        inter_branch.pull()

        self.assertEquals(revid2, newbranch.last_revision())

    def test_interbranch_pull_noop(self):

        path, (gitsha1, gitsha2) = self.make_tworev_branch()

        oldrepo = Repository.open(path)

        revid2 = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha2)

        newbranch = self.make_branch('g')

        inter_branch = InterBranch.get(Branch.open(path), newbranch)

        inter_branch.pull()

        # This is basically "assertNotRaises"

        inter_branch.pull()

        self.assertEquals(revid2, newbranch.last_revision())

    def test_interbranch_pull_stop_revision(self):

        path, (gitsha1, gitsha2) = self.make_tworev_branch()

        oldrepo = Repository.open(path)

        revid1 = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha1)

        newbranch = self.make_branch('g')

        inter_branch = InterBranch.get(Branch.open(path), newbranch)

        inter_branch.pull(stop_revision=revid1)

        self.assertEquals(revid1, newbranch.last_revision())

    def test_interbranch_limited_pull(self):

        path, (gitsha1, gitsha2) = self.make_tworev_branch()

        oldrepo = Repository.open(path)

        revid1 = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha1)

        revid2 = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha2)

        newbranch = self.make_branch('g')

        inter_branch = InterBranch.get(Branch.open(path), newbranch)

        inter_branch.pull(limit=1)

        self.assertEquals(revid1, newbranch.last_revision())

        inter_branch.pull(limit=1)

        self.assertEquals(revid2, newbranch.last_revision())

class ForeignTestsBranchFactory(object):

    def make_empty_branch(self, transport):

        d = LocalGitBzrDirFormat().initialize_on_transport(transport)

        return d.create_branch()

    make_branch = make_empty_branch

class BranchNameRefConversionTests(tests.TestCase):

    def test_head(self):

        self.assertEquals("HEAD", branch.ref_to_branch_name("HEAD"))

        self.assertEquals("HEAD", branch.branch_name_to_ref("HEAD"))

    def test_tag(self):

        self.assertRaises(ValueError, branch.ref_to_branch_name, "refs/tags/FOO")

    def test_branch(self):

        self.assertEquals("frost", branch.ref_to_branch_name("refs/heads/frost"))

        self.assertEquals("refs/heads/frost", branch.branch_name_to_ref("frost"))