~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2005, 2006 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

import os

from bzrlib.tests.blackbox import ExternalBase

from bzrlib.workingtree import WorkingTree

class TestRemerge(ExternalBase):

    def make_file(self, name, contents):

        f = open(name, 'wb')

        try:

            f.write(contents)

        finally:

            f.close()

    def create_conflicts(self):

        """Create a conflicted tree"""

        os.mkdir('base')

        os.chdir('base')

        self.make_file('hello', "hi world")

        self.make_file('answer', "42")

        self.run_bzr('init')

        self.run_bzr('add')

        self.run_bzr('commit -m base')

        self.run_bzr('branch . ../other')

        self.run_bzr('branch . ../this')

        os.chdir('../other')

        self.make_file('hello', "Hello.")

        self.make_file('answer', "Is anyone there?")

        self.run_bzr('commit -m other')

        os.chdir('../this')

        self.make_file('hello', "Hello, world")

        self.run_bzr('mv answer question')

        self.make_file('question', "What do you get when you multiply six"

                                   "times nine?")

        self.run_bzr('commit -m this')

    def test_remerge(self):

        """Remerge command works as expected"""

        self.create_conflicts()

        self.run_bzr('merge ../other --show-base', retcode=1)

        conflict_text = open('hello').read()

        self.assertTrue('|||||||' in conflict_text)

        self.assertTrue('hi world' in conflict_text)

        self.run_bzr_error(['conflicts encountered'], 'remerge', retcode=1)

        conflict_text = open('hello').read()

        self.assertFalse('|||||||' in conflict_text)

        self.assertFalse('hi world' in conflict_text)

        os.unlink('hello.OTHER')

        os.unlink('question.OTHER')

        self.run_bzr_error(['jello is not versioned'],

                     'remerge jello --merge-type weave')

        self.run_bzr_error(['conflicts encountered'],

                           'remerge hello --merge-type weave',

                           retcode=1)

        self.failUnlessExists('hello.OTHER')

        self.failIfExists('question.OTHER')

        file_id = self.run_bzr('file-id hello')[0]

        self.run_bzr_error(['hello.THIS is not versioned'],

                           'file-id hello.THIS')

        self.run_bzr_error(['conflicts encountered'],

                           'remerge --merge-type weave', retcode=1)

        self.failUnlessExists('hello.OTHER')

        self.failIfExists('hello.BASE')

        self.assertFalse('|||||||' in conflict_text)

        self.assertFalse('hi world' in conflict_text)

        self.run_bzr_error(['Showing base is not supported.*Weave'],

                           'remerge . --merge-type weave --show-base')

        self.run_bzr_error(['Can\'t reprocess and show base'],

                           'remerge . --show-base --reprocess')

        self.run_bzr_error(['conflicts encountered'],

                           'remerge . --merge-type weave --reprocess',

                           retcode=1)

        self.run_bzr_error(['conflicts encountered'],

                           'remerge hello --show-base',

                           retcode=1)

        self.run_bzr_error(['conflicts encountered'],

                           'remerge hello --reprocess', retcode=1)

        self.run_bzr('resolve --all')

        self.run_bzr('commit -m done')

        self.run_bzr_error(['remerge only works after normal merges',

                            'Not cherrypicking or multi-merges'],

                           'remerge')

    def test_conflicts(self):

        self.create_conflicts()

        self.run_bzr('merge ../other', retcode=1)

        wt = WorkingTree.open('.')

        self.assertEqual(2, len(wt.conflicts()))

        self.run_bzr('remerge', retcode=1)

        wt = WorkingTree.open('.')

        self.assertEqual(2, len(wt.conflicts()))

        self.run_bzr('remerge hello', retcode=1)

        self.assertEqual(2, len(wt.conflicts()))