/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 Repository"""

import subprocess

from bzrlib import (

    inventory,

    repository,

    revision,

    )

from bzrlib.plugins.git import tests

from bzrlib.plugins.git import (

    git_dir,

    git_repository,

    ids,

    model,

    )

class TestGitRepositoryFeatures(tests.TestCaseInTempDir):

    """Feature tests for GitRepository."""

    _test_needs_features = [tests.GitCommandFeature]

    def test_open_existing(self):

        tests.run_git('init')

        repo = repository.Repository.open('.')

        self.assertIsInstance(repo, git_repository.GitRepository)

    def test_has_git_model(self):

        tests.run_git('init')

        repo = repository.Repository.open('.')

        self.assertIsInstance(repo._git, model.GitModel)

    def test_revision_graph(self):

        tests.run_git('init')

        builder = tests.GitBranchBuilder()

        builder.set_file('a', 'text for a\n', False)

        commit1_handle = builder.commit('Joe Foo <joe@foo.com>', u'message')

        builder.set_file('a', 'new a\n', False)

        commit2_handle = builder.commit('Joe Foo <joe@foo.com>', u'new a')

        builder.set_file('b', 'text for b\n', False)

        commit3_handle = builder.commit('Jerry Bar <jerry@foo.com>', u'b',

                                        base=commit1_handle)

        commit4_handle = builder.commit('Jerry Bar <jerry@foo.com>', u'merge',

                                        base=commit3_handle,

                                        merge=[commit2_handle],)

        mapping = builder.finish()

        commit1_id = mapping[commit1_handle]

        commit2_id = mapping[commit2_handle]

        commit3_id = mapping[commit3_handle]

        commit4_id = mapping[commit4_handle]

        revisions = tests.run_git('rev-list', '--topo-order',

                                  commit4_id)

        revisions = revisions.splitlines()

        self.assertEqual([commit4_id, commit2_id, commit3_id, commit1_id],

                         revisions)

        bzr_revisions = [ids.convert_revision_id_git_to_bzr(r) for r in revisions]

        graph = {bzr_revisions[0]:[bzr_revisions[2], bzr_revisions[1]],

                 bzr_revisions[1]:[bzr_revisions[3]],

                 bzr_revisions[2]:[bzr_revisions[3]],

                 bzr_revisions[3]:[],

                }

        repo = repository.Repository.open('.')

        self.assertEqual(graph, repo.get_revision_graph(bzr_revisions[0]))

        self.assertEqual({bzr_revisions[3]:[]},

                         repo.get_revision_graph(bzr_revisions[3]))

    def test_get_revision(self):

        # GitRepository.get_revision gives a Revision object.

        # Create a git repository with a revision.

        tests.run_git('init')

        builder = tests.GitBranchBuilder()

        builder.set_file('a', 'text for a\n', False)

        commit_handle = builder.commit('Joe Foo <joe@foo.com>', u'message')

        mapping = builder.finish()

        commit_id = mapping[commit_handle]

        # Get the corresponding Revision object.

        revid = ids.convert_revision_id_git_to_bzr(commit_id)

        repo = repository.Repository.open('.')

        rev = repo.get_revision(revid)

        self.assertIsInstance(rev, revision.Revision)

    def test_get_inventory(self):

        # GitRepository.get_inventory gives a GitInventory object with

        # plausible entries for typical cases.

        # Create a git repository with some interesting files in a revision.

        tests.run_git('init')

        builder = tests.GitBranchBuilder()

        builder.set_file('data', 'text\n', False)

        builder.set_file('executable', 'content', True)

        builder.set_link('link', 'broken')

        builder.set_file('subdir/subfile', 'subdir text\n', False)

        commit_handle = builder.commit('Joe Foo <joe@foo.com>', u'message',

            timestamp=1205433193)

        mapping = builder.finish()

        commit_id = mapping[commit_handle]

        # Get the corresponding Inventory object.

        revid = ids.convert_revision_id_git_to_bzr(commit_id)

        repo = repository.Repository.open('.')

        inv = repo.get_inventory(revid)

        self.assertIsInstance(inv, inventory.Inventory)

        printed_inv = '\n'.join(

            repr((path, entry.executable, entry))

            for path, entry in inv.iter_entries())

        self.assertEqualDiff(

            printed_inv,

            "('', False, InventoryDirectory('TREE_ROOT', u'', parent_id=None,"

            " revision='git-experimental-r:69c39cfa65962f3cf16b9b3eb08a15954e9d8590'))\n"

            "(u'data', False, InventoryFile('data', u'data',"

            " parent_id='TREE_ROOT',"

            " sha1='aa785adca3fcdfe1884ae840e13c6d294a2414e8', len=5))\n"

            "(u'executable', True, InventoryFile('executable', u'executable',"

            " parent_id='TREE_ROOT',"

            " sha1='040f06fd774092478d450774f5ba30c5da78acc8', len=7))\n"

            "(u'link', False, InventoryLink('link', u'link',"

            " parent_id='TREE_ROOT', revision='git-experimental-r:69c39cfa65962f3cf16b9b3eb08a15954e9d8590'))\n"

            "(u'subdir', False, InventoryDirectory('subdir', u'subdir',"

            " parent_id='TREE_ROOT', revision='git-experimental-r:69c39cfa65962f3cf16b9b3eb08a15954e9d8590'))\n"

            "(u'subdir/subfile', False, InventoryFile('subdir/subfile',"

            " u'subfile', parent_id='subdir',"

            " sha1='67b75c3e49f31fcadddbf9df6a1d8be8c3e44290', len=12))")

class MemoryGitRepository(git_repository.GitRepository):

    """A git repository without real git data on disk."""

    @classmethod

    def _make_model(klass, transport):

        return None

class MemoryGitDir(git_dir.GitDir):

    """A git tree with real data on disk."""

    _gitrepository_class = MemoryGitRepository

class MemoryGitBzrDirFormat(git_dir.GitBzrDirFormat):

    """Format for a git tree without real data on disk."""

    _gitdir_class = MemoryGitDir

class TestGitRepository(tests.TestCaseWithTransport):

    def setUp(self):

        tests.TestCaseWithTransport.setUp(self)

        self.transport = self.get_transport()

        self.transport.mkdir('.git')

        self.git_dir = MemoryGitBzrDirFormat().open(self.transport)

        self.git_repo = self.git_dir.open_repository()

    def test_supports_rich_root(self):

        # GitRepository.supports_rich_root is False, at least for now.

        repo = self.git_repo

        self.assertEqual(repo.supports_rich_root(), False)

    def assertIsNullInventory(self, inv):

        self.assertEqual(inv.root, None)

        self.assertEqual(inv.revision_id, revision.NULL_REVISION)

        self.assertEqual(list(inv.iter_entries()), [])

    def test_get_inventory_none(self):

        # GitRepository.get_inventory(None) returns the null inventory.

        repo = self.git_repo

        inv = repo.get_inventory(None)

        self.assertIsNullInventory(inv)

    def test_revision_tree_none(self):

        # GitRepository.revision_tree(None) returns the null tree.

        repo = self.git_repo

        tree = repo.revision_tree(None)

        self.assertEqual(tree.get_revision_id(), revision.NULL_REVISION)

        self.assertIsNullInventory(tree.inventory)

class TestGitRepositoryParseRev(tests.TestCase):

    """Unit tests for GitRepository._parse_rev."""

    def test_base_commit(self):

        # GitRepository._parse_rev works for a simple base commit.

        rev = git_repository.GitRepository._parse_rev([

            "873a8ae0d682b0e63e9795bc53056d32ed3de93f\n",

            "tree aaff74984cccd156a469afa7d9ab10e4777beb24\n",

            "author Jane Bar <jane@bar.com> 1198784533 +0200\n",

            "committer Joe Foo <joe@foo.com> 1198784532 +0100\n",

            "\n",

            "    message\n",

            "\x00"])

        self.assertEqual(rev.revision_id,

            'git-experimental-r:873a8ae0d682b0e63e9795bc53056d32ed3de93f')

        self.assertEqual(rev.parent_ids, [])

        self.assertEqual(rev.committer, 'Joe Foo <joe@foo.com>')

        self.assertEqual(repr(rev.timestamp), '1198784532.0')

        self.assertEqual(repr(rev.timezone), '3600')

        self.assertEqual(rev.message, 'message\n')

        self.assertEqual(

            rev.properties,

            {'git-tree-id': 'aaff74984cccd156a469afa7d9ab10e4777beb24',

             'author': 'Jane Bar <jane@bar.com>',

             'git-author-timestamp': '1198784533',

             'git-author-timezone': '+0200'})

    def test_merge_commit(self):

        # Multi-parent commits (merges) are parsed correctly.

        rev = git_repository.GitRepository._parse_rev([

            "873a8ae0d682b0e63e9795bc53056d32ed3de93f\n",

            "tree aaff74984cccd156a469afa7d9ab10e4777beb24\n",

            "parent 263ed20f0d4898be994404ca418bafe8e89abb8a\n",

            "parent 546563eb8f3e94a557f3bb779b6e5a2bd9658752\n",

            "parent 3116d42db7b5c5e69e58f651721e179791479c23\n",

            "author Jane Bar <jane@bar.com> 1198784533 +0200\n",

            "committer Joe Foo <joe@foo.com> 1198784532 +0100\n",

            "\n",

            "    message\n",

            "\x00"])

        # Git records merges in the same way as bzr. The first parent is the

        # commit base, the following parents are the ordered merged revisions.

        self.assertEqual(

            rev.parent_ids,

            ['git-experimental-r:263ed20f0d4898be994404ca418bafe8e89abb8a',

             'git-experimental-r:546563eb8f3e94a557f3bb779b6e5a2bd9658752',

             'git-experimental-r:3116d42db7b5c5e69e58f651721e179791479c23'])

    def test_redundant_spaces(self):

        # Redundant spaces in author and committer are preserved.

        rev = git_repository.GitRepository._parse_rev([

            "873a8ae0d682b0e63e9795bc53056d32ed3de93f\n",

            "tree aaff74984cccd156a469afa7d9ab10e4777beb24\n",

            "author  Jane  Bar  <jane@bar.com>  1198784533 +0200\n",

            "committer  Joe  Foo  <joe@foo.com>  1198784532 +0100\n",

            "\n",

            "    message\n",

            "\x00"])

        self.assertEqual(rev.committer, ' Joe  Foo  <joe@foo.com> ')

        self.assertEqual(

            rev.properties['author'], ' Jane  Bar  <jane@bar.com> ')

    def test_no_committer(self):

        # If committer is not set, then author is used.

        #

        # Folks in #git say that git fsck would likely accept commits that do

        # not set committer, but that author is a mandatory value.

        rev = git_repository.GitRepository._parse_rev([

            "873a8ae0d682b0e63e9795bc53056d32ed3de93f\n",

            "tree aaff74984cccd156a469afa7d9ab10e4777beb24\n",

            "author Jane Bar <jane@bar.com> 1198784533 +0200\n",

            "\n",

            "    message\n",

            "\x00"])

        self.assertEqual(rev.committer, 'Jane Bar <jane@bar.com>')

        self.assertEqual(repr(rev.timestamp), '1198784533.0')

        self.assertEqual(repr(rev.timezone), '7200')

        self.assertEqual(rev.properties['author'], 'Jane Bar <jane@bar.com>')

        self.assertEqual(rev.properties['git-author-timestamp'], '1198784533')

        self.assertEqual(rev.properties['git-author-timezone'], '+0200')

    def test_parse_tz(self):

        # Simple tests for the _parse_tz helper.

        parse_tz = git_repository.GitRepository._parse_tz

        self.assertEqual(repr(parse_tz('+0000')), '0')

        self.assertEqual(repr(parse_tz('+0001')), '60')

        self.assertEqual(repr(parse_tz('-0001')), '-60')

        self.assertEqual(repr(parse_tz('+0100')), '3600')

        self.assertEqual(repr(parse_tz('-0100')), '-3600')

        self.assertEqual(repr(parse_tz('+9959')), '359940')

        self.assertEqual(repr(parse_tz('-9959')), '-359940')