~abentley/bzrtools/bzrtools.dev

# Copyright (C) 2009 Aaron Bentley <aaron@aaronbentley.com>

#

#    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

from cStringIO import StringIO

import os

from bzrlib.tests import TestCaseWithTransport

from bzrlib.plugins.bzrtools import errors

from bzrlib.plugins.bzrtools.conflict_diff import (

    ConflictDiffer

)

class TestConflictDiff(TestCaseWithTransport):

    def test_conflict_diff_this(self):

        self.build_tree_contents(

            [('foo.THIS', 'this\n'), ('foo.BASE', 'base\n')])

        s = StringIO()

        ConflictDiffer().conflict_diff(s, 'foo', 'this')

        self.assertEqual('--- foo.BASE\n+++ foo.THIS\n'

                         '@@ -1,1 +1,1 @@\n'

                         '-base\n+this\n\n', s.getvalue())

    def test_no_conflict(self):

        tree = self.make_branch_and_tree('.')

        self.build_tree_contents([('foo', 'base\n')])

        tree.add('foo')

        e = self.assertRaises(errors.NoConflictFiles,

                              ConflictDiffer().get_old_lines,

                              'foo',

                              'foo.BASE')

        self.assertEqual('foo.BASE does not exist and there are no pending'

                         ' merges.', str(e))

    def test_get_old_lines(self):

        self.build_tree_contents([('foo.BASE', 'base\n')])

        old_lines = ConflictDiffer().get_old_lines('foo', 'foo.BASE')

        self.assertEqual(['base\n'], old_lines)

    def test_get_old_lines_no_base(self):

        tree = self.make_branch_and_tree('tree')

        self.build_tree_contents([('tree/foo', 'base\n')])

        tree.add('foo')

        tree.commit('added foo')

        other = tree.bzrdir.sprout('other').open_workingtree()

        self.build_tree_contents([('other/foo', 'other\n')])

        other.commit('Changed foo text')

        self.build_tree_contents([('tree/foo', 'this\n')])

        tree.commit('Changed foo text')

        tree.merge_from_branch(other.branch)

        os.unlink('tree/foo.BASE')

        old_lines = ConflictDiffer().get_old_lines('tree/foo', 'tree/foo.BASE')

        self.assertEqual(['base\n'], old_lines)