/brz/remove-bazaar

# Copyright (C) 2007-2011 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

"""Tests for the BranchBuilder class."""

from .. import (

    branch as _mod_branch,

    revision as _mod_revision,

    tests,

    )

from ..bzr import (

    branch as _mod_bzrbranch,

    )

from ..branchbuilder import BranchBuilder

class TestBranchBuilder(tests.TestCaseWithMemoryTransport):

    def test_create(self):

        """Test the constructor api."""

        builder = BranchBuilder(self.get_transport().clone('foo'))

        # we dont care if the branch has been built or not at this point.

    def test_get_branch(self):

        """get_branch returns the created branch."""

        builder = BranchBuilder(self.get_transport().clone('foo'))

        branch = builder.get_branch()

        self.assertIsInstance(branch, _mod_branch.Branch)

        self.assertEqual(self.get_transport().clone('foo').base,

            branch.base)

        self.assertEqual(

            (0, _mod_revision.NULL_REVISION),

            branch.last_revision_info())

    def test_format(self):

        """Making a BranchBuilder with a format option sets the branch type."""

        builder = BranchBuilder(self.get_transport(), format='dirstate-tags')

        branch = builder.get_branch()

        self.assertIsInstance(branch, _mod_bzrbranch.BzrBranch6)

    def test_build_one_commit(self):

        """doing build_commit causes a commit to happen."""

        builder = BranchBuilder(self.get_transport().clone('foo'))

        rev_id = builder.build_commit()

        branch = builder.get_branch()

        self.assertEqual((1, rev_id), branch.last_revision_info())

        self.assertEqual(

            'commit 1',

            branch.repository.get_revision(branch.last_revision()).message)

    def test_build_commit_timestamp(self):

        """You can set a date when committing."""

        builder = self.make_branch_builder('foo')

        rev_id = builder.build_commit(timestamp=1236043340)

        branch = builder.get_branch()

        self.assertEqual((1, rev_id), branch.last_revision_info())

        rev = branch.repository.get_revision(branch.last_revision())

        self.assertEqual(

            'commit 1',

            rev.message)

        self.assertEqual(

            1236043340,

            int(rev.timestamp))

    def test_build_two_commits(self):

        """The second commit has the right parents and message."""

        builder = BranchBuilder(self.get_transport().clone('foo'))

        rev_id1 = builder.build_commit()

        rev_id2 = builder.build_commit()

        branch = builder.get_branch()

        self.assertEqual((2, rev_id2), branch.last_revision_info())

        self.assertEqual(

            'commit 2',

            branch.repository.get_revision(branch.last_revision()).message)

        self.assertEqual(

            [rev_id1],

            branch.repository.get_revision(branch.last_revision()).parent_ids)

    def test_build_commit_parent_ids(self):

        """build_commit() takes a parent_ids argument."""

        builder = BranchBuilder(self.get_transport().clone('foo'))

        rev_id1 = builder.build_commit(

            parent_ids=[b"ghost"], allow_leftmost_as_ghost=True)

        rev_id2 = builder.build_commit(parent_ids=[])

        branch = builder.get_branch()

        self.assertEqual((1, rev_id2), branch.last_revision_info())

        self.assertEqual(

            [b"ghost"],

            branch.repository.get_revision(rev_id1).parent_ids)

class TestBranchBuilderBuildSnapshot(tests.TestCaseWithMemoryTransport):

    def assertTreeShape(self, expected_shape, tree):

        """Check that the tree shape matches expectations."""

        tree.lock_read()

        try:

            entries = [(path, ie.file_id, ie.kind)

                       for path, ie in tree.iter_entries_by_dir()]

        finally:

            tree.unlock()

        self.assertEqual(expected_shape, entries)

    def build_a_rev(self):

        builder = BranchBuilder(self.get_transport().clone('foo'))

        rev_id1 = builder.build_snapshot(None,

            [('add', ('', b'a-root-id', 'directory', None)),

             ('add', ('a', b'a-id', 'file', b'contents'))],

            revision_id=b'A-id')

        self.assertEqual(b'A-id', rev_id1)

        return builder

    def test_add_one_file(self):

        builder = self.build_a_rev()

        branch = builder.get_branch()

        self.assertEqual((1, b'A-id'), branch.last_revision_info())

        rev_tree = branch.repository.revision_tree(b'A-id')

        rev_tree.lock_read()

        self.addCleanup(rev_tree.unlock)

        self.assertTreeShape([(u'', b'a-root-id', 'directory'),

                              (u'a', b'a-id', 'file')], rev_tree)

        self.assertEqual(b'contents', rev_tree.get_file_text('a'))

    def test_add_second_file(self):

        builder = self.build_a_rev()

        rev_id2 = builder.build_snapshot(None,

            [('add', ('b', b'b-id', 'file', b'content_b'))],

            revision_id=b'B-id')

        self.assertEqual(b'B-id', rev_id2)

        branch = builder.get_branch()

        self.assertEqual((2, rev_id2), branch.last_revision_info())

        rev_tree = branch.repository.revision_tree(rev_id2)

        rev_tree.lock_read()

        self.addCleanup(rev_tree.unlock)

        self.assertTreeShape([(u'', b'a-root-id', 'directory'),

                              (u'a', b'a-id', 'file'),

                              (u'b', b'b-id', 'file')], rev_tree)

        self.assertEqual(b'content_b', rev_tree.get_file_text('b'))

    def test_add_empty_dir(self):

        builder = self.build_a_rev()

        rev_id2 = builder.build_snapshot(None,

            [('add', ('b', b'b-id', 'directory', None))],

            revision_id=b'B-id')

        rev_tree = builder.get_branch().repository.revision_tree(b'B-id')

        self.assertTreeShape([(u'', b'a-root-id', 'directory'),

                              (u'a', b'a-id', 'file'),

                              (u'b', b'b-id', 'directory'),

                             ], rev_tree)

    def test_commit_timestamp(self):

        builder = self.make_branch_builder('foo')

        rev_id = builder.build_snapshot(None,

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

            timestamp=1234567890)

        rev = builder.get_branch().repository.get_revision(rev_id)

        self.assertEqual(

            1234567890,

            int(rev.timestamp))

    def test_commit_message_default(self):

        builder = BranchBuilder(self.get_transport().clone('foo'))

        rev_id = builder.build_snapshot(None,

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

        branch = builder.get_branch()

        rev = branch.repository.get_revision(rev_id)

        self.assertEqual(u'commit 1', rev.message)

    def test_commit_message_supplied(self):

        builder = BranchBuilder(self.get_transport().clone('foo'))

        rev_id = builder.build_snapshot(None,

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

            message=u'Foo')

        branch = builder.get_branch()

        rev = branch.repository.get_revision(rev_id)

        self.assertEqual(u'Foo', rev.message)

    def test_commit_message_callback(self):

        builder = BranchBuilder(self.get_transport().clone('foo'))

        rev_id = builder.build_snapshot(None,

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

            message_callback=lambda x:u'Foo')

        branch = builder.get_branch()

        rev = branch.repository.get_revision(rev_id)

        self.assertEqual(u'Foo', rev.message)

    def test_modify_file(self):

        builder = self.build_a_rev()

        rev_id2 = builder.build_snapshot(None,

            [('modify', ('a', b'new\ncontent\n'))],

            revision_id=b'B-id')

        self.assertEqual(b'B-id', rev_id2)

        branch = builder.get_branch()

        rev_tree = branch.repository.revision_tree(rev_id2)

        rev_tree.lock_read()

        self.addCleanup(rev_tree.unlock)

        self.assertEqual(b'new\ncontent\n',

                         rev_tree.get_file_text(rev_tree.id2path(b'a-id')))

    def test_delete_file(self):

        builder = self.build_a_rev()

        rev_id2 = builder.build_snapshot(None,

            [('unversion', 'a')], revision_id=b'B-id')

        self.assertEqual(b'B-id', rev_id2)

        branch = builder.get_branch()

        rev_tree = branch.repository.revision_tree(rev_id2)

        rev_tree.lock_read()

        self.addCleanup(rev_tree.unlock)

        self.assertTreeShape([(u'', b'a-root-id', 'directory')], rev_tree)

    def test_delete_directory(self):

        builder = self.build_a_rev()

        rev_id2 = builder.build_snapshot(None,

            [('add', ('b', b'b-id', 'directory', None)),

             ('add', ('b/c', b'c-id', 'file', b'foo\n')),

             ('add', ('b/d', b'd-id', 'directory', None)),

             ('add', ('b/d/e', b'e-id', 'file', b'eff\n')),

            ], revision_id=b'B-id')

        rev_tree = builder.get_branch().repository.revision_tree(b'B-id')

        self.assertTreeShape([(u'', b'a-root-id', 'directory'),

                              (u'a', b'a-id', 'file'),

                              (u'b', b'b-id', 'directory'),

                              (u'b/c', b'c-id', 'file'),

                              (u'b/d', b'd-id', 'directory'),

                              (u'b/d/e', b'e-id', 'file')], rev_tree)

        # Removing a directory removes all child dirs

        builder.build_snapshot(

                None, [('unversion', 'b')],

                revision_id=b'C-id')

        rev_tree = builder.get_branch().repository.revision_tree(b'C-id')

        self.assertTreeShape([(u'', b'a-root-id', 'directory'),

                              (u'a', b'a-id', 'file'),

                             ], rev_tree)

    def test_unknown_action(self):

        builder = self.build_a_rev()

        e = self.assertRaises(ValueError,

            builder.build_snapshot, None, [('weirdo', ('foo',))],

            revision_id=b'B-id')

        self.assertEqual('Unknown build action: "weirdo"', str(e))

    def test_rename(self):

        builder = self.build_a_rev()

        builder.build_snapshot(None,

            [('rename', ('a', 'b'))], revision_id=b'B-id')

        rev_tree = builder.get_branch().repository.revision_tree(b'B-id')

        self.assertTreeShape([(u'', b'a-root-id', 'directory'),

                              (u'b', b'a-id', 'file')], rev_tree)

    def test_rename_into_subdir(self):

        builder = self.build_a_rev()

        builder.build_snapshot(None,

            [('add', ('dir', b'dir-id', 'directory', None)),

             ('rename', ('a', 'dir/a'))], revision_id=b'B-id')

        rev_tree = builder.get_branch().repository.revision_tree(b'B-id')

        self.assertTreeShape([(u'', b'a-root-id', 'directory'),

                              (u'dir', b'dir-id', 'directory'),

                              (u'dir/a', b'a-id', 'file')], rev_tree)

    def test_rename_out_of_unversioned_subdir(self):

        builder = self.build_a_rev()

        builder.build_snapshot(None,

            [('add', ('dir', b'dir-id', 'directory', None)),

             ('rename', ('a', 'dir/a'))],

            revision_id=b'B-id')

        builder.build_snapshot(None,

            [('rename', ('dir/a', 'a')),

             ('unversion', 'dir')], revision_id=b'C-id')

        rev_tree = builder.get_branch().repository.revision_tree(b'C-id')

        self.assertTreeShape([(u'', b'a-root-id', 'directory'),

                              (u'a', b'a-id', 'file')], rev_tree)

    def test_set_parent(self):

        builder = self.build_a_rev()

        builder.start_series()

        self.addCleanup(builder.finish_series)

        builder.build_snapshot([b'A-id'],

            [('modify', ('a', b'new\ncontent\n'))],

            revision_id=b'B-id')

        builder.build_snapshot([b'A-id'],

            [('add', ('c', b'c-id', 'file', b'alt\ncontent\n'))],

            revision_id=b'C-id')

        # We should now have a graph:

        #   A

        #   |\

        #   C B

        # And not A => B => C

        repo = builder.get_branch().repository

        self.assertEqual({b'B-id': (b'A-id',), b'C-id': (b'A-id',)},

                         repo.get_parent_map([b'B-id', b'C-id']))

        b_tree = repo.revision_tree(b'B-id')

        self.assertTreeShape([(u'', b'a-root-id', 'directory'),

                              (u'a', b'a-id', 'file'),

                             ], b_tree)

        self.assertEqual(b'new\ncontent\n', b_tree.get_file_text('a'))

        # We should still be using the content from A in C, not from B

        c_tree = repo.revision_tree(b'C-id')

        self.assertTreeShape([(u'', b'a-root-id', 'directory'),

                              (u'a', b'a-id', 'file'),

                              (u'c', b'c-id', 'file'),

                             ], c_tree)

        self.assertEqual(b'contents', c_tree.get_file_text('a'))

        self.assertEqual(b'alt\ncontent\n', c_tree.get_file_text('c'))

    def test_set_merge_parent(self):

        builder = self.build_a_rev()

        builder.start_series()

        self.addCleanup(builder.finish_series)

        builder.build_snapshot([b'A-id'],

            [('add', ('b', b'b-id', 'file', b'b\ncontent\n'))],

            revision_id=b'B-id')

        builder.build_snapshot([b'A-id'],

            [('add', ('c', b'c-id', 'file', b'alt\ncontent\n'))],

            revision_id=b'C-id')

        builder.build_snapshot([b'B-id', b'C-id'], [], revision_id=b'D-id')

        repo = builder.get_branch().repository

        self.assertEqual({b'B-id': (b'A-id',), b'C-id': (b'A-id',),

                          b'D-id': (b'B-id', b'C-id')},

                         repo.get_parent_map([b'B-id', b'C-id', b'D-id']))

        d_tree = repo.revision_tree(b'D-id')

        # Note: by default a merge node does *not* pull in the changes from the

        #       merged tree, you have to supply it yourself.

        self.assertTreeShape([(u'', b'a-root-id', 'directory'),

                              (u'a', b'a-id', 'file'),

                              (u'b', b'b-id', 'file'),

                             ], d_tree)

    def test_set_merge_parent_and_contents(self):

        builder = self.build_a_rev()

        builder.start_series()

        self.addCleanup(builder.finish_series)

        builder.build_snapshot([b'A-id'],

            [('add', ('b', b'b-id', 'file', b'b\ncontent\n'))],

            revision_id=b'B-id')

        builder.build_snapshot([b'A-id'],

            [('add', ('c', b'c-id', 'file', b'alt\ncontent\n'))],

            revision_id=b'C-id')

        builder.build_snapshot([b'B-id', b'C-id'],

            [('add', ('c', b'c-id', 'file', b'alt\ncontent\n'))],

            revision_id=b'D-id')

        repo = builder.get_branch().repository

        self.assertEqual({b'B-id': (b'A-id',), b'C-id': (b'A-id',),

                          b'D-id': (b'B-id', b'C-id')},

                         repo.get_parent_map([b'B-id', b'C-id', b'D-id']))

        d_tree = repo.revision_tree(b'D-id')

        self.assertTreeShape([(u'', b'a-root-id', 'directory'),

                              (u'a', b'a-id', 'file'),

                              (u'b', b'b-id', 'file'),

                              (u'c', b'c-id', 'file'),

                             ], d_tree)

        # Because we copied the exact text into *this* tree, the 'c' file

        # should look like it was not modified in the merge

        self.assertEqual(b'C-id', d_tree.get_file_revision('c'))

    def test_set_parent_to_null(self):

        builder = self.build_a_rev()

        builder.start_series()

        self.addCleanup(builder.finish_series)

        builder.build_snapshot([],

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

            revision_id=b'B-id')

        # We should now have a graph:

        #   A B

        # And not A => B

        repo = builder.get_branch().repository

        self.assertEqual({b'A-id': (_mod_revision.NULL_REVISION,),

                          b'B-id': (_mod_revision.NULL_REVISION,),},

                         repo.get_parent_map([b'A-id', b'B-id']))

    def test_start_finish_series(self):

        builder = BranchBuilder(self.get_transport().clone('foo'))

        builder.start_series()

        try:

            self.assertIsNot(None, builder._tree)

            self.assertEqual('w', builder._tree._lock_mode)

            self.assertTrue(builder._branch.is_locked())

        finally:

            builder.finish_series()

        self.assertIs(None, builder._tree)

        self.assertFalse(builder._branch.is_locked())

    def test_ghost_mainline_history(self):

        builder = BranchBuilder(self.get_transport().clone('foo'))

        builder.start_series()

        try:

            builder.build_snapshot([b'ghost'],

                [('add', ('', b'ROOT_ID', 'directory', ''))],

                allow_leftmost_as_ghost=True, revision_id=b'tip')

        finally:

            builder.finish_series()

        b = builder.get_branch()

        b.lock_read()

        self.addCleanup(b.unlock)

        self.assertEqual((b'ghost',),

            b.repository.get_graph().get_parent_map([b'tip'])[b'tip'])

    def test_unversion_root_add_new_root(self):

        builder = BranchBuilder(self.get_transport().clone('foo'))

        builder.start_series()

        builder.build_snapshot(None,

            [('add', ('', b'TREE_ROOT', 'directory', ''))],

            revision_id=b'rev-1')

        builder.build_snapshot(None,

            [('unversion', ''),

             ('add', ('', b'my-root', 'directory', ''))],

            revision_id=b'rev-2')

        builder.finish_series()

        rev_tree = builder.get_branch().repository.revision_tree(b'rev-2')

        self.assertTreeShape([(u'', b'my-root', 'directory')], rev_tree)

    def test_empty_flush(self):

        """A flush with no actions before it is a no-op."""

        builder = BranchBuilder(self.get_transport().clone('foo'))

        builder.start_series()

        builder.build_snapshot(None,

            [('add', ('', b'TREE_ROOT', 'directory', ''))],

            revision_id=b'rev-1')

        builder.build_snapshot(None, [('flush', None)], revision_id=b'rev-2')

        builder.finish_series()

        rev_tree = builder.get_branch().repository.revision_tree(b'rev-2')

        self.assertTreeShape([(u'', b'TREE_ROOT', 'directory')], rev_tree)

    def test_kind_change(self):

        """It's possible to change the kind of an entry in a single snapshot

        with a bit of help from the 'flush' action.

        """

        builder = BranchBuilder(self.get_transport().clone('foo'))

        builder.start_series()

        builder.build_snapshot(None,

            [('add', (u'', b'a-root-id', 'directory', None)),

             ('add', (u'a', b'a-id', 'file', b'content\n'))],

            revision_id=b'A-id')

        builder.build_snapshot(None,

            [('unversion', 'a'),

             ('flush', None),

             ('add', (u'a', b'a-id', 'directory', None))],

            revision_id=b'B-id')

        builder.finish_series()

        rev_tree = builder.get_branch().repository.revision_tree(b'B-id')

        self.assertTreeShape(

            [(u'', b'a-root-id', 'directory'), (u'a', b'a-id', 'directory')],

            rev_tree)

    def test_pivot_root(self):

        """It's possible (albeit awkward) to move an existing dir to the root

        in a single snapshot by using unversion then flush then add.

        """

        builder = BranchBuilder(self.get_transport().clone('foo'))

        builder.start_series()

        builder.build_snapshot(None,

            [('add', (u'', b'orig-root', 'directory', None)),

             ('add', (u'dir', b'dir-id', 'directory', None))],

            revision_id=b'A-id')

        builder.build_snapshot(None,

            [('unversion', ''),  # implicitly unversions all children

             ('flush', None),

             ('add', (u'', b'dir-id', 'directory', None))],

            revision_id=b'B-id')

        builder.finish_series()

        rev_tree = builder.get_branch().repository.revision_tree(b'B-id')

        self.assertTreeShape([(u'', b'dir-id', 'directory')], rev_tree)