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# Copyright (C) 2007 Canonical Ltd
 
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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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# 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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# 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
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"""Tests for interfacing with a Git Branch"""
 
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from dulwich.objects import (
 
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from dulwich.repo import (
 
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from bzrlib.branch import (
 
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from bzrlib.bzrdir import (
 
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from bzrlib.repository import (
 
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from bzrlib.plugins.git import (
 
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    LocalGitControlDirFormat,
 
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from bzrlib.plugins.git.mapping import (
 
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class TestGitBranch(tests.TestCaseInTempDir):
 
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    def test_open_existing(self):
 
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        thebranch = d.create_branch()
 
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        self.assertIsInstance(thebranch, branch.GitBranch)
 
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        thebranch = d.create_branch()
 
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        self.assertEquals("<LocalGitBranch('file://%s/', 'HEAD')>" % self.test_dir, repr(thebranch))
 
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    def test_last_revision_is_null(self):
 
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        thedir = BzrDir.open('.')
 
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        thebranch = thedir.create_branch()
 
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        self.assertEqual(revision.NULL_REVISION, thebranch.last_revision())
 
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        self.assertEqual((0, revision.NULL_REVISION),
 
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                         thebranch.last_revision_info())
 
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    def simple_commit_a(self):
 
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        self.build_tree(['a'])
 
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        return r.do_commit("a", committer="Somebody <foo@example.com>")
 
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    def test_last_revision_is_valid(self):
 
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        head = self.simple_commit_a()
 
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        thebranch = Branch.open('.')
 
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        self.assertEqual(default_mapping.revision_id_foreign_to_bzr(head),
 
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                         thebranch.last_revision())
 
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    def test_revision_history(self):
 
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        reva = self.simple_commit_a()
 
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        self.build_tree(['b'])
 
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        revb = r.do_commit("b", committer="Somebody <foo@example.com>")
 
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        thebranch = Branch.open('.')
 
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        self.assertEqual([default_mapping.revision_id_foreign_to_bzr(r) for r in (reva, revb)],
 
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                         thebranch.revision_history())
 
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    def test_tag_annotated(self):
 
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        reva = self.simple_commit_a()
 
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        o.tagger = "Jelmer <foo@example.com>"
 
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        o.message = "add tag"
 
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        o.object = (Commit, reva)
 
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        r.object_store.add_object(o)
 
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        r['refs/tags/foo'] = o.id
 
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        thebranch = Branch.open('.')
 
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        self.assertEquals({"foo": default_mapping.revision_id_foreign_to_bzr(reva)},
 
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                          thebranch.tags.get_tag_dict())
 
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        reva = self.simple_commit_a()
 
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        r.refs["refs/tags/foo"] = reva
 
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        thebranch = Branch.open('.')
 
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        self.assertEquals({"foo": default_mapping.revision_id_foreign_to_bzr(reva)},
 
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                          thebranch.tags.get_tag_dict())
 
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class TestWithGitBranch(tests.TestCaseWithTransport):
 
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        tests.TestCaseWithTransport.setUp(self)
 
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        dulwich.repo.Repo.create(self.test_dir)
 
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        d = BzrDir.open(self.test_dir)
 
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        self.git_branch = d.create_branch()
 
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    def test_get_parent(self):
 
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        self.assertIs(None, self.git_branch.get_parent())
 
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    def test_get_stacked_on_url(self):
 
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        self.assertRaises(errors.UnstackableBranchFormat,
 
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            self.git_branch.get_stacked_on_url)
 
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    def test_get_physical_lock_status(self):
 
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        self.assertFalse(self.git_branch.get_physical_lock_status())
 
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class TestGitBranchFormat(tests.TestCase):
 
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        super(TestGitBranchFormat, self).setUp()
 
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        self.format = branch.GitBranchFormat()
 
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    def test_get_format_description(self):
 
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        self.assertEquals("Git Branch", self.format.get_format_description())
 
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    def test_get_network_name(self):
 
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        self.assertEquals("git", self.format.network_name())
 
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    def test_supports_tags(self):
 
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        self.assertTrue(self.format.supports_tags())
 
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class BranchTests(tests.TestCaseInTempDir):
 
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    def make_onerev_branch(self):
 
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        bb = tests.GitBranchBuilder()
 
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        bb.set_file("foobar", "foo\nbar\n", False)
 
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        mark = bb.commit("Somebody <somebody@someorg.org>", "mymsg")
 
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        gitsha = bb.finish()[mark]
 
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    def make_tworev_branch(self):
 
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        bb = tests.GitBranchBuilder()
 
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        bb.set_file("foobar", "foo\nbar\n", False)
 
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        mark1 = bb.commit("Somebody <somebody@someorg.org>", "mymsg")
 
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        mark2 = bb.commit("Somebody <somebody@someorg.org>", "mymsg")
 
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        return "d", (marks[mark1], marks[mark2])
 
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    def clone_git_branch(self, from_url, to_url):
 
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        from_dir = BzrDir.open(from_url)
 
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        to_dir = from_dir.sprout(to_url)
 
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        return to_dir.open_branch()
 
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    def test_single_rev(self):
 
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        path, gitsha = self.make_onerev_branch()
 
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        oldrepo = Repository.open(path)
 
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        revid = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha)
 
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        newbranch = self.clone_git_branch(path, "f")
 
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        self.assertEquals([revid], newbranch.repository.all_revision_ids())
 
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    def test_sprouted_tags(self):
 
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        path, gitsha = self.make_onerev_branch()
 
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        r.refs["refs/tags/lala"] = r.head()
 
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        oldrepo = Repository.open(path)
 
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        revid = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha)
 
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        newbranch = self.clone_git_branch(path, "f")
 
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        self.assertEquals({"lala": revid}, newbranch.tags.get_tag_dict())
 
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        self.assertEquals([revid], newbranch.repository.all_revision_ids())
 
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    def test_interbranch_pull(self):
 
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        path, (gitsha1, gitsha2) = self.make_tworev_branch()
 
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        oldrepo = Repository.open(path)
 
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        revid2 = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha2)
 
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        newbranch = self.make_branch('g')
 
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        inter_branch = InterBranch.get(Branch.open(path), newbranch)
 
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        self.assertEquals(revid2, newbranch.last_revision())
 
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    def test_interbranch_pull_noop(self):
 
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        path, (gitsha1, gitsha2) = self.make_tworev_branch()
 
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        oldrepo = Repository.open(path)
 
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        revid2 = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha2)
 
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        newbranch = self.make_branch('g')
 
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        inter_branch = InterBranch.get(Branch.open(path), newbranch)
 
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        # This is basically "assertNotRaises"
 
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        self.assertEquals(revid2, newbranch.last_revision())
 
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    def test_interbranch_pull_stop_revision(self):
 
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        path, (gitsha1, gitsha2) = self.make_tworev_branch()
 
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        oldrepo = Repository.open(path)
 
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        revid1 = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha1)
 
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        newbranch = self.make_branch('g')
 
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        inter_branch = InterBranch.get(Branch.open(path), newbranch)
 
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        inter_branch.pull(stop_revision=revid1)
 
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        self.assertEquals(revid1, newbranch.last_revision())
 
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    def test_interbranch_limited_pull(self):
 
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        path, (gitsha1, gitsha2) = self.make_tworev_branch()
 
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        oldrepo = Repository.open(path)
 
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        revid1 = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha1)
 
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        revid2 = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha2)
 
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        newbranch = self.make_branch('g')
 
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        inter_branch = InterBranch.get(Branch.open(path), newbranch)
 
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        inter_branch.pull(limit=1)
 
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        self.assertEquals(revid1, newbranch.last_revision())
 
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        inter_branch.pull(limit=1)
 
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        self.assertEquals(revid2, newbranch.last_revision())
 
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class ForeignTestsBranchFactory(object):
 
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    def make_empty_branch(self, transport):
 
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        d = LocalGitControlDirFormat().initialize_on_transport(transport)
 
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        return d.create_branch()
 
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    make_branch = make_empty_branch