/brz/remove-bazaar

# Copyright (C) 2005 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 commit message editor.

"""

import os

import sys

from bzrlib.branch import Branch

from bzrlib.config import ensure_config_dir_exists, config_filename

import bzrlib.msgeditor 

from bzrlib.tests import TestCaseWithTransport, TestSkipped

from bzrlib.trace import mutter

from bzrlib import (

    osutils,

    errors

    )

class MsgEditorTest(TestCaseWithTransport):

    def make_uncommitted_tree(self):

        """Build a branch with uncommitted unicode named changes in the cwd."""

        working_tree = self.make_branch_and_tree('.')

        b = working_tree.branch

        filename = u'hell\u00d8'

        try:

            self.build_tree_contents([(filename, 'contents of hello')])

        except UnicodeEncodeError:

            raise TestSkipped("can't build unicode working tree in "

                "filesystem encoding %s" % sys.getfilesystemencoding())

        working_tree.add(filename)

        return working_tree

    def test_commit_template(self):

        """Test building a commit message template"""

        working_tree = self.make_uncommitted_tree()

        template = bzrlib.msgeditor.make_commit_message_template(working_tree, None)

        self.assertEqualDiff(template,

u"""\

added:

  hell\u00d8

""")

    def setUp(self):

        super(MsgEditorTest, self).setUp()

        self._bzr_editor = os.environ.get('BZR_EDITOR', None)

    def tearDown(self):

        if self._bzr_editor is not None:

            os.environ['BZR_EDITOR'] = self._bzr_editor

        else:

            if os.environ.get('BZR_EDITOR', None) is not None:

                del os.environ['BZR_EDITOR']

        super(MsgEditorTest, self).tearDown()

    def test_run_editor(self):

        if sys.platform == "win32":

            f = file('fed.bat', 'w')

            f.write('@rem dummy fed')

            f.close()

            os.environ['BZR_EDITOR'] = 'fed.bat'

        else:

            f = file('fed.sh', 'wb')

            f.write('#!/bin/sh\n')

            f.close()

            os.chmod('fed.sh', 0755)

            os.environ['BZR_EDITOR'] = './fed.sh'

        self.assertEqual(True, bzrlib.msgeditor._run_editor(''),

                         'Unable to run dummy fake editor')

    def make_fake_editor(self, message='test message from fed\\n'):

        """Set up environment so that an editor will be a known script.

        Sets up BZR_EDITOR so that if an editor is spawned it will run a

        script that just adds a known message to the start of the file.

        """

        f = file('fed.py', 'wb')

        f.write('#!%s\n' % sys.executable)

        f.write("""\

# coding=utf-8

import sys

if len(sys.argv) == 2:

    fn = sys.argv[1]

    f = file(fn, 'rb')

    s = f.read()

    f.close()

    f = file(fn, 'wb')

    f.write('%s')

    f.write(s)

    f.close()

""" % (message, ))

        f.close()

        if sys.platform == "win32":

            # [win32] make batch file and set BZR_EDITOR

            f = file('fed.bat', 'w')

            f.write("""\

@echo off

"%s" fed.py %%1

""" % sys.executable)

            f.close()

            os.environ['BZR_EDITOR'] = 'fed.bat'

        else:

            # [non-win32] make python script executable and set BZR_EDITOR

            os.chmod('fed.py', 0755)

            os.environ['BZR_EDITOR'] = './fed.py'

    def test_edit_commit_message(self):

        working_tree = self.make_uncommitted_tree()

        self.make_fake_editor()

        mutter('edit_commit_message without infotext')

        self.assertEqual('test message from fed\n',

                         bzrlib.msgeditor.edit_commit_message(''))

        mutter('edit_commit_message with unicode infotext')

        self.assertEqual('test message from fed\n',

                         bzrlib.msgeditor.edit_commit_message(u'\u1234'))

    def test_start_message(self):

        self.make_uncommitted_tree()

        self.make_fake_editor()

        self.assertEqual('test message from fed\nstart message\n',

                         bzrlib.msgeditor.edit_commit_message('',

                                              start_message='start message\n'))

        self.assertEqual('test message from fed\n',

                         bzrlib.msgeditor.edit_commit_message('',

                                              start_message=''))

    def test_deleted_commit_message(self):

        working_tree = self.make_uncommitted_tree()

        if sys.platform == 'win32':

            os.environ['BZR_EDITOR'] = 'cmd.exe /c del'

        else:

            os.environ['BZR_EDITOR'] = 'rm'

        self.assertRaises((IOError, OSError), bzrlib.msgeditor.edit_commit_message, '')

    def test__get_editor(self):

        # Test that _get_editor can return a decent list of items

        bzr_editor = os.environ.get('BZR_EDITOR')

        visual = os.environ.get('VISUAL')

        editor = os.environ.get('EDITOR')

        try:

            os.environ['BZR_EDITOR'] = 'bzr_editor'

            os.environ['VISUAL'] = 'visual'

            os.environ['EDITOR'] = 'editor'

            ensure_config_dir_exists()

            f = open(config_filename(), 'wb')

            f.write('editor = config_editor\n')

            f.close()

            editors = list(bzrlib.msgeditor._get_editor())

            self.assertEqual(['bzr_editor', 'config_editor', 'visual',

                              'editor'], editors[:4])

            if sys.platform == 'win32':

                self.assertEqual(['wordpad.exe', 'notepad.exe'], editors[4:])

            else:

                self.assertEqual(['/usr/bin/editor', 'vi', 'pico', 'nano',

                                  'joe'], editors[4:])

        finally:

            # Restore the environment

            if bzr_editor is None:

                del os.environ['BZR_EDITOR']

            else:

                os.environ['BZR_EDITOR'] = bzr_editor

            if visual is None:

                del os.environ['VISUAL']

            else:

                os.environ['VISUAL'] = visual

            if editor is None:

                del os.environ['EDITOR']

            else:

                os.environ['EDITOR'] = editor

    def test__create_temp_file_with_commit_template(self):

        # check that commit template written properly

        # and has platform native line-endings (CRLF on win32)

        create_file = bzrlib.msgeditor._create_temp_file_with_commit_template

        msgfilename, hasinfo = create_file('infotext','----','start message')

        self.assertNotEqual(None, msgfilename)

        self.assertTrue(hasinfo)

        expected = os.linesep.join(['start message',

                                    '',

                                    '',

                                    '----',

                                    '',

                                    'infotext'])

        self.assertFileEqual(expected, msgfilename)

    def test__create_temp_file_with_empty_commit_template(self):

        # empty file

        create_file = bzrlib.msgeditor._create_temp_file_with_commit_template

        msgfilename, hasinfo = create_file('')

        self.assertNotEqual(None, msgfilename)

        self.assertFalse(hasinfo)

        self.assertFileEqual('', msgfilename)

    def test_unsupported_encoding_commit_message(self):

        old_env = osutils.set_or_unset_env('LANG', 'C')

        try:

            self.make_fake_editor(message='\xff')

            working_tree = self.make_uncommitted_tree()

            self.assertRaises(errors.BadCommitMessageEncoding,

                                    bzrlib.msgeditor.edit_commit_message, '')

        finally:

            osutils.set_or_unset_env('LANG', old_env)