~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2006, 2007, 2009, 2010 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

"""Black-box tests for bzr revert."""

import os

import bzrlib.osutils

from bzrlib.tests import TestCaseWithTransport

from bzrlib.trace import mutter

from bzrlib.workingtree import WorkingTree

class TestRevert(TestCaseWithTransport):

    def _prepare_tree(self):

        self.run_bzr('init')

        self.run_bzr('mkdir dir')

        f = file('dir/file', 'wb')

        f.write('spam')

        f.close()

        self.run_bzr('add dir/file')

        self.run_bzr('commit -m1')

        # modify file

        f = file('dir/file', 'wb')

        f.write('eggs')

        f.close()

        # check status

        self.assertEquals('modified:\n  dir/file\n', self.run_bzr('status')[0])

    def _prepare_rename_mod_tree(self):

        self.build_tree(['a/', 'a/b', 'a/c', 'a/d/', 'a/d/e', 'f/', 'f/g',

                         'f/h', 'f/i'])

        self.run_bzr('init')

        self.run_bzr('add')

        self.run_bzr('commit -m 1')

        wt = WorkingTree.open('.')

        wt.rename_one('a/b', 'f/b')

        wt.rename_one('a/d/e', 'f/e')

        wt.rename_one('a/d', 'f/d')

        wt.rename_one('f/g', 'a/g')

        wt.rename_one('f/h', 'h')

        wt.rename_one('f', 'j')

    def helper(self, param=''):

        self._prepare_tree()

        # change dir

        # revert to default revision for file in subdir does work

        os.chdir('dir')

        mutter('cd dir\n')

        self.assertEquals('1\n', self.run_bzr('revno')[0])

        self.run_bzr('revert %s file' % param)

        self.assertEquals('spam', open('file', 'rb').read())

    def test_revert_in_subdir(self):

        self.helper()

    def test_revert_to_revision_in_subdir(self):

        # test case for bug #29424:

        # revert to specific revision for file in subdir does not work

        self.helper('-r 1')

    def test_revert_in_checkout(self):

        os.mkdir('brach')

        os.chdir('brach')

        self._prepare_tree()

        self.run_bzr('checkout --lightweight . ../sprach')

        self.run_bzr('commit -m more')

        os.chdir('../sprach')

        self.assertEqual('', self.run_bzr('status')[0])

        self.run_bzr('revert')

        self.assertEqual('', self.run_bzr('status')[0])

    def test_revert_dirname(self):

        """Test that revert DIRECTORY does what's expected"""

        self._prepare_rename_mod_tree()

        self.run_bzr('revert a')

        self.assertPathExists('a/b')

        self.assertPathExists('a/d')

        self.assertPathDoesNotExist('a/g')

        self.expectFailure(

            "j is in the delta revert applies because j was renamed too",

            self.assertPathExists, 'j')

        self.assertPathExists('h')

        self.run_bzr('revert f')

        self.assertPathDoesNotExist('j')

        self.assertPathDoesNotExist('h')

        self.assertPathExists('a/d/e')

    def test_revert_chatter(self):

        self._prepare_rename_mod_tree()

        chatter = self.run_bzr('revert')[1]

        self.assertEqualDiff(

            'R   a/g => f/g\n'

            'R   h => f/h\n'

            'R   j/ => f/\n'

            'R   j/b => a/b\n'

            'R   j/d/ => a/d/\n'

            'R   j/e => a/d/e\n',

            chatter)

    def test_revert(self):

        self.run_bzr('init')

        with file('hello', 'wt') as f: f.write('foo')

        self.run_bzr('add hello')

        self.run_bzr('commit -m setup hello')

        with file('goodbye', 'wt') as f: f.write('baz')

        self.run_bzr('add goodbye')

        self.run_bzr('commit -m setup goodbye')

        with file('hello', 'wt') as f: f.write('bar')

        with file('goodbye', 'wt') as f: f.write('qux')

        self.run_bzr('revert hello')

        self.check_file_contents('hello', 'foo')

        self.check_file_contents('goodbye', 'qux')

        self.run_bzr('revert')

        self.check_file_contents('goodbye', 'baz')

        os.mkdir('revertdir')

        self.run_bzr('add revertdir')

        self.run_bzr('commit -m f')

        os.rmdir('revertdir')

        self.run_bzr('revert')

        if bzrlib.osutils.has_symlinks():

            os.symlink('/unlikely/to/exist', 'symlink')

            self.run_bzr('add symlink')

            self.run_bzr('commit -m f')

            os.unlink('symlink')

            self.run_bzr('revert')

            self.assertPathExists('symlink')

            os.unlink('symlink')

            os.symlink('a-different-path', 'symlink')

            self.run_bzr('revert')

            self.assertEqual('/unlikely/to/exist',

                             os.readlink('symlink'))

        else:

            self.log("skipping revert symlink tests")

        with file('hello', 'wt') as f: f.write('xyz')

        self.run_bzr('commit -m xyz hello')

        self.run_bzr('revert -r 1 hello')

        self.check_file_contents('hello', 'foo')

        self.run_bzr('revert hello')

        self.check_file_contents('hello', 'xyz')

        os.chdir('revertdir')

        self.run_bzr('revert')

        os.chdir('..')

    def test_revert_newly_added(self):

        # this tests the UI reports reverting a newly added file

        # correct (such files are not deleted)

        tree = self.make_branch_and_tree('.')

        self.build_tree(['file'])

        tree.add(['file'])

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

        self.assertEqual('', out)

        self.assertEqual('-   file\n', err)

    def test_revert_removing_file(self):

        # this tests the UI reports reverting a file which has been committed

        # to a revision that did not have it, reports it as being deleted.

        tree = self.make_branch_and_tree('.')

        tree.commit('empty commit')

        self.build_tree(['file'])

        tree.add(['file'])

        tree.commit('add file')

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

        self.assertEqual('', out)

        self.assertEqual('-D  file\n', err)

    def test_revert_forget_merges(self):

        # revert --forget-merges removes any pending merges into the tree, but

        # leaves the files unchanged

        tree = self.make_branch_and_tree('.')

        # forget-merges before first commit, though pointless, does not fail

        self.run_bzr(['revert', '--forget-merges'])

        self.build_tree(['file'])

        first_rev_id = tree.commit('initial commit')

        self.build_tree_contents([('file', 'new content')])

        existing_parents = tree.get_parent_ids()

        self.assertEquals([first_rev_id], existing_parents)

        merged_parents = existing_parents + ['merged-in-rev']

        tree.set_parent_ids(merged_parents)

        self.assertEquals(merged_parents, tree.get_parent_ids())

        self.run_bzr(['revert', '--forget-merges'])

        self.assertEquals([first_rev_id], tree.get_parent_ids())

        # changed files are not reverted

        self.assertFileEqual('new content', 'file')

        # you can give it the path of a tree

        self.run_bzr(['revert', '--forget-merges', tree.abspath('.')])