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tests/test_branch.py
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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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import dulwich as git
 
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import dulwich
 
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from dulwich.repo import (
 
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    Repo as GitRepo,
 
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    )
 
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import os
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from bzrlib import (
 
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    errors,
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    revision,
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    )
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from bzrlib.branch import (
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    Branch,
 
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    InterBranch,
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    )
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from bzrlib.bzrdir import (
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    BzrDir,
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    )
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from bzrlib.plugins.git import (
 
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    LocalGitBzrDirFormat,
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    branch,
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    tests,
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    )
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from bzrlib.plugins.git.mapping import default_mapping
 
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from bzrlib.plugins.git.mapping import (
 
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    default_mapping,
 
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    )
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class TestGitBranch(tests.TestCaseInTempDir):
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    _test_needs_features = [tests.GitCommandFeature]
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    def test_open_existing(self):
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        tests.run_git('init')
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        thebranch = Branch.open('.')
 
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        GitRepo.init('.')
 
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        d = BzrDir.open('.')
 
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        thebranch = d.create_branch()
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        self.assertIsInstance(thebranch, branch.GitBranch)
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    def test_repr(self):
 
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        GitRepo.init('.')
 
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        d = BzrDir.open('.')
 
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        thebranch = d.create_branch()
 
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        self.assertEquals("<LocalGitBranch('file://%s/', 'refs/heads/master')>" % self.test_dir, repr(thebranch))
 
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    def test_last_revision_is_null(self):
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        tests.run_git('init')
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        thebranch = Branch.open('.')
 
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        GitRepo.init('.')
 
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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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        tests.run_git('init')
 
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        GitRepo.init('.')
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        self.build_tree(['a'])
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        tests.run_git('add', 'a')
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        tests.run_git('commit', '-m', 'a')
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    def test_last_revision_is_valid(self):
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        self.simple_commit_a()
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        head = tests.run_git('rev-parse', 'HEAD').strip()
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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 setUp(self):
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        tests.TestCaseWithTransport.setUp(self)
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        git.repo.Repo.create(self.test_dir)
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        self.git_branch = Branch.open(self.test_dir)
 
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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.assertIs(None, self.git_branch.get_stacked_on_url())
 
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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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    def make_onerev_branch(self):
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        os.mkdir("d")
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        os.chdir("d")
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        tests.run_git("init")
 
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        GitRepo.init('.')
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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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        os.chdir("..")
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        return "d", gitsha
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    def make_tworev_branch(self):
 
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        os.mkdir("d")
 
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        os.chdir("d")
 
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        GitRepo.init('.')
 
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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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        marks = bb.finish()
 
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        os.chdir("..")
 
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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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        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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        inter_branch.pull()
 
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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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        inter_branch.pull()
 
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        # This is basically "assertNotRaises"
 
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        inter_branch.pull()
 
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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 = LocalGitBzrDirFormat().initialize_on_transport(transport)
 
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        return d.create_branch()
 
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    make_branch = make_empty_branch
 
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