~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2005, 2006 by 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

"""Test the uncommit command."""

import os

from bzrlib import uncommit, workingtree

from bzrlib.bzrdir import BzrDirMetaFormat1

from bzrlib.errors import BzrError, BoundBranchOutOfDate

from bzrlib.tests import TestCaseWithTransport

class TestUncommit(TestCaseWithTransport):

    def create_simple_tree(self):

        wt = self.make_branch_and_tree('tree')

        self.build_tree(['tree/a', 'tree/b', 'tree/c'])

        wt.add(['a', 'b', 'c'])

        wt.commit('initial commit', rev_id='a1')

        open('tree/a', 'wb').write('new contents of a\n')

        wt.commit('second commit', rev_id='a2')

        return wt

    def test_uncommit(self):

        """Test uncommit functionality."""

        wt = self.create_simple_tree()

        os.chdir('tree')

        out, err = self.run_bzr('uncommit', '--dry-run', '--force')

        self.assertContainsRe(out, 'Dry-run')

        self.assertNotContainsRe(out, 'initial commit')

        self.assertContainsRe(out, 'second commit')

        # Nothing has changed

        self.assertEqual(['a2'], wt.get_parent_ids())

        # Uncommit, don't prompt

        out, err = self.run_bzr('uncommit', '--force')

        self.assertNotContainsRe(out, 'initial commit')

        self.assertContainsRe(out, 'second commit')

        # This should look like we are back in revno 1

        self.assertEqual(['a1'], wt.get_parent_ids())

        out, err = self.run_bzr('status')

        self.assertEquals(out, 'modified:\n  a\n')

    def test_uncommit_checkout(self):

        wt = self.create_simple_tree()

        checkout_tree = wt.bzrdir.sprout('checkout').open_workingtree()

        checkout_tree.branch.bind(wt.branch)

        self.assertEqual(['a2'], checkout_tree.get_parent_ids())

        os.chdir('checkout')

        out, err = self.run_bzr('uncommit', '--dry-run', '--force')

        self.assertContainsRe(out, 'Dry-run')

        self.assertNotContainsRe(out, 'initial commit')

        self.assertContainsRe(out, 'second commit')

        self.assertEqual(['a2'], checkout_tree.get_parent_ids())

        out, err = self.run_bzr('uncommit', '--force')

        self.assertNotContainsRe(out, 'initial commit')

        self.assertContainsRe(out, 'second commit')

        # uncommit in a checkout should uncommit the parent branch

        # (but doesn't effect the other working tree)

        self.assertEquals(['a1'], checkout_tree.get_parent_ids())

        self.assertEquals('a1', wt.branch.last_revision())

        self.assertEquals(['a2'], wt.get_parent_ids())

    def test_uncommit_bound(self):

        os.mkdir('a')

        a = BzrDirMetaFormat1().initialize('a')

        a.create_repository()

        a.create_branch()

        t_a = a.create_workingtree()

        t_a.commit('commit 1')

        t_a.commit('commit 2')

        t_a.commit('commit 3')

        b = t_a.bzrdir.sprout('b').open_branch()

        b.bind(t_a.branch)

        uncommit.uncommit(b)

        self.assertEqual(len(b.revision_history()), 2)

        self.assertEqual(len(t_a.branch.revision_history()), 2)

        # update A's tree to not have the uncomitted revision referenced.

        t_a.update()

        t_a.commit('commit 3b')

        self.assertRaises(BoundBranchOutOfDate, uncommit.uncommit, b)

        b.pull(t_a.branch)

        uncommit.uncommit(b)

    def test_uncommit_revision(self):

        wt = self.create_simple_tree()

        os.chdir('tree')

        out, err = self.run_bzr('uncommit', '-r1', '--force')

        self.assertNotContainsRe(out, 'initial commit')

        self.assertContainsRe(out, 'second commit')

        self.assertEqual(['a1'], wt.get_parent_ids())

        self.assertEqual('a1', wt.branch.last_revision())

    def test_uncommit_neg_1(self):

        wt = self.create_simple_tree()

        os.chdir('tree')

        out, err = self.run_bzr('uncommit', '-r', '-1', retcode=1)

        self.assertEqual('No revisions to uncommit.\n', out)

    def test_uncommit_merges(self):

        wt = self.create_simple_tree()

        tree2 = wt.bzrdir.sprout('tree2').open_workingtree()

        tree2.commit('unchanged', rev_id='b3')

        tree2.commit('unchanged', rev_id='b4')

        wt.merge_from_branch(tree2.branch)

        wt.commit('merge b4', rev_id='a3')

        self.assertEqual(['a3'], wt.get_parent_ids())

        os.chdir('tree')

        out, err = self.run_bzr('uncommit', '--force')

        self.assertEqual(['a2', 'b4'], wt.get_parent_ids())

    def test_uncommit_pending_merge(self):

        wt = self.create_simple_tree()

        tree2 = wt.bzrdir.sprout('tree2').open_workingtree()

        tree2.commit('unchanged', rev_id='b3')

        wt.branch.fetch(tree2.branch)

        wt.set_pending_merges(['b3'])

        os.chdir('tree')

        out, err = self.run_bzr('uncommit', '--force')

        self.assertEqual(['a1', 'b3'], wt.get_parent_ids())

    def test_uncommit_multiple_merge(self):

        wt = self.create_simple_tree()

        tree2 = wt.bzrdir.sprout('tree2').open_workingtree()

        tree2.commit('unchanged', rev_id='b3')

        wt.merge_from_branch(tree2.branch)

        wt.commit('merge b3', rev_id='a3')

        tree2.commit('unchanged', rev_id='b4')

        wt.merge_from_branch(tree2.branch)

        wt.commit('merge b4', rev_id='a4')

        self.assertEqual(['a4'], wt.get_parent_ids())

        os.chdir('tree')

        out, err = self.run_bzr('uncommit', '--force', '-r', '2')

        self.assertEqual(['a2', 'b3', 'b4'], wt.get_parent_ids())

    def test_uncommit_merge_plus_pending(self):

        wt = self.create_simple_tree()

        tree2 = wt.bzrdir.sprout('tree2').open_workingtree()

        tree2.commit('unchanged', rev_id='b3')

        wt.branch.fetch(tree2.branch)

        wt.set_pending_merges(['b3'])

        wt.commit('merge b3', rev_id='a3')

        tree2.commit('unchanged', rev_id='b4')

        wt.branch.fetch(tree2.branch)

        wt.set_pending_merges(['b4'])

        self.assertEqual(['a3', 'b4'], wt.get_parent_ids())

        os.chdir('tree')

        out, err = self.run_bzr('uncommit', '--force', '-r', '2')

        self.assertEqual(['a2', 'b3', 'b4'], wt.get_parent_ids())

    def test_uncommit_octopus_merge(self):

        # Check that uncommit keeps the pending merges in the same order

        wt = self.create_simple_tree()

        tree2 = wt.bzrdir.sprout('tree2').open_workingtree()

        tree3 = wt.bzrdir.sprout('tree3').open_workingtree()

        tree2.commit('unchanged', rev_id='b3')

        tree3.commit('unchanged', rev_id='c3')

        wt.merge_from_branch(tree2.branch)

        wt.merge_from_branch(tree3.branch)

        wt.commit('merge b3, c3', rev_id='a3')

        tree2.commit('unchanged', rev_id='b4')

        tree3.commit('unchanged', rev_id='c4')

        wt.merge_from_branch(tree3.branch)

        wt.merge_from_branch(tree2.branch)

        wt.commit('merge b4, c4', rev_id='a4')

        self.assertEqual(['a4'], wt.get_parent_ids())

        os.chdir('tree')

        out, err = self.run_bzr('uncommit', '--force', '-r', '2')

        self.assertEqual(['a2', 'b3', 'c3', 'c4', 'b4'], wt.get_parent_ids())