~bzr-pqm/bzr/bzr.dev : contents of bzrlib/tests/blackbox/test_too

~bzr-pqm/bzr/bzr.dev : (revision 1526.1.3)
# Copyright (C) 2005 by Canonical Ltd
# -*- coding: utf-8 -*-

# 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


"""Black-box tests for bzr.

These check that it behaves properly when it's invoked through the regular
command-line interface. This doesn't actually run a new interpreter but 
rather starts again from the run_bzr function.
"""


# XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
# Note: Please don't add new tests here, it's too big and bulky.  Instead add
# them into small suites in bzrlib.tests.blackbox.test_FOO for the particular
# UI command/aspect that is being tested.


from cStringIO import StringIO
import os
import re
import shutil
import sys

from bzrlib.branch import Branch
from bzrlib.clone import copy_branch
from bzrlib.errors import BzrCommandError
from bzrlib.osutils import has_symlinks
from bzrlib.tests.HTTPTestUtil import TestCaseWithWebserver
from bzrlib.tests.blackbox import ExternalBase

class TestCommands(ExternalBase):

    def test_help_commands(self):
        self.runbzr('--help')
        self.runbzr('help')
        self.runbzr('help commands')
        self.runbzr('help help')
        self.runbzr('commit -h')

    def test_init_branch(self):
        self.runbzr(['init'])

        # Can it handle subdirectories as well?
        self.runbzr('init subdir1')
        self.assert_(os.path.exists('subdir1'))
        self.assert_(os.path.exists('subdir1/.bzr'))

        self.runbzr('init subdir2/nothere', retcode=3)
        
        os.mkdir('subdir2')
        self.runbzr('init subdir2')
        self.runbzr('init subdir2', retcode=3)

        self.runbzr('init subdir2/subsubdir1')
        self.assert_(os.path.exists('subdir2/subsubdir1/.bzr'))

    def test_whoami(self):
        # this should always identify something, if only "john@localhost"
        self.runbzr("whoami")
        self.runbzr("whoami --email")

        self.assertEquals(self.runbzr("whoami --email",
                                      backtick=True).count('@'), 1)
        
    def test_whoami_branch(self):
        """branch specific user identity works."""
        self.runbzr('init')
        f = file('.bzr/email', 'wt')
        f.write('Branch Identity <branch@identi.ty>')
        f.close()
        bzr_email = os.environ.get('BZREMAIL')
        if bzr_email is not None:
            del os.environ['BZREMAIL']
        whoami = self.runbzr("whoami",backtick=True)
        whoami_email = self.runbzr("whoami --email",backtick=True)
        self.assertTrue(whoami.startswith('Branch Identity <branch@identi.ty>'))
        self.assertTrue(whoami_email.startswith('branch@identi.ty'))
        # Verify that the environment variable overrides the value 
        # in the file
        os.environ['BZREMAIL'] = 'Different ID <other@environ.ment>'
        whoami = self.runbzr("whoami",backtick=True)
        whoami_email = self.runbzr("whoami --email",backtick=True)
        self.assertTrue(whoami.startswith('Different ID <other@environ.ment>'))
        self.assertTrue(whoami_email.startswith('other@environ.ment'))
        if bzr_email is not None:
            os.environ['BZREMAIL'] = bzr_email

    def test_nick_command(self):
        """bzr nick for viewing, setting nicknames"""
        os.mkdir('me.dev')
        os.chdir('me.dev')
        self.runbzr('init')
        nick = self.runbzr("nick",backtick=True)
        self.assertEqual(nick, 'me.dev\n')
        nick = self.runbzr("nick moo")
        nick = self.runbzr("nick",backtick=True)
        self.assertEqual(nick, 'moo\n')


    def test_invalid_commands(self):
        self.runbzr("pants", retcode=3)
        self.runbzr("--pants off", retcode=3)
        self.runbzr("diff --message foo", retcode=3)

    def test_empty_commit(self):
        self.runbzr("init")
        self.build_tree(['hello.txt'])
        self.runbzr("commit -m empty", retcode=3)
        self.runbzr("add hello.txt")
        self.runbzr("commit -m added")       

    def test_empty_commit_message(self):
        self.runbzr("init")
        file('foo.c', 'wt').write('int main() {}')
        self.runbzr(['add', 'foo.c'])
        self.runbzr(["commit", "-m", ""] , retcode=3) 

    def test_remove_deleted(self):
        self.runbzr("init")
        self.build_tree(['a'])
        self.runbzr(['add', 'a'])
        self.runbzr(['commit', '-m', 'added a'])
        os.unlink('a')
        self.runbzr(['remove', 'a'])

    def test_other_branch_commit(self):
        # this branch is to ensure consistent behaviour, whether we're run
        # inside a branch, or not.
        os.mkdir('empty_branch')
        os.chdir('empty_branch')
        self.runbzr('init')
        os.mkdir('branch')
        os.chdir('branch')
        self.runbzr('init')
        file('foo.c', 'wt').write('int main() {}')
        file('bar.c', 'wt').write('int main() {}')
        os.chdir('..')
        self.runbzr(['add', 'branch/foo.c'])
        self.runbzr(['add', 'branch'])
        # can't commit files in different trees; sane error
        self.runbzr('commit -m newstuff branch/foo.c .', retcode=3)
        self.runbzr('commit -m newstuff branch/foo.c')
        self.runbzr('commit -m newstuff branch')
        self.runbzr('commit -m newstuff branch', retcode=3)

    def test_ignore_patterns(self):
        from bzrlib.branch import Branch
        Branch.initialize('.')
        self.assertEquals(self.capture('unknowns'), '')

        file('foo.tmp', 'wt').write('tmp files are ignored')
        self.assertEquals(self.capture('unknowns'), '')

        file('foo.c', 'wt').write('int main() {}')
        self.assertEquals(self.capture('unknowns'), 'foo.c\n')

        self.runbzr(['add', 'foo.c'])
        self.assertEquals(self.capture('unknowns'), '')

        # 'ignore' works when creating the .bzignore file
        file('foo.blah', 'wt').write('blah')
        self.assertEquals(self.capture('unknowns'), 'foo.blah\n')
        self.runbzr('ignore *.blah')
        self.assertEquals(self.capture('unknowns'), '')
        self.assertEquals(file('.bzrignore', 'rU').read(), '*.blah\n')

        # 'ignore' works when then .bzrignore file already exists
        file('garh', 'wt').write('garh')
        self.assertEquals(self.capture('unknowns'), 'garh\n')
        self.runbzr('ignore garh')
        self.assertEquals(self.capture('unknowns'), '')
        self.assertEquals(file('.bzrignore', 'rU').read(), '*.blah\ngarh\n')

    def test_revert(self):
        self.runbzr('init')

        file('hello', 'wt').write('foo')
        self.runbzr('add hello')
        self.runbzr('commit -m setup hello')

        file('goodbye', 'wt').write('baz')
        self.runbzr('add goodbye')
        self.runbzr('commit -m setup goodbye')

        file('hello', 'wt').write('bar')
        file('goodbye', 'wt').write('qux')
        self.runbzr('revert hello')
        self.check_file_contents('hello', 'foo')
        self.check_file_contents('goodbye', 'qux')
        self.runbzr('revert')
        self.check_file_contents('goodbye', 'baz')

        os.mkdir('revertdir')
        self.runbzr('add revertdir')
        self.runbzr('commit -m f')
        os.rmdir('revertdir')
        self.runbzr('revert')

        os.symlink('/unlikely/to/exist', 'symlink')
        self.runbzr('add symlink')
        self.runbzr('commit -m f')
        os.unlink('symlink')
        self.runbzr('revert')
        self.failUnlessExists('symlink')
        os.unlink('symlink')
        os.symlink('a-different-path', 'symlink')
        self.runbzr('revert')
        self.assertEqual('/unlikely/to/exist',
                         os.readlink('symlink'))
        
        file('hello', 'wt').write('xyz')
        self.runbzr('commit -m xyz hello')
        self.runbzr('revert -r 1 hello')
        self.check_file_contents('hello', 'foo')
        self.runbzr('revert hello')
        self.check_file_contents('hello', 'xyz')
        os.chdir('revertdir')
        self.runbzr('revert')
        os.chdir('..')

    def test_status(self):
        self.runbzr("init")
        self.build_tree(['hello.txt'])
        result = self.runbzr("status")
        self.assert_("unknown:\n  hello.txt\n" in result, result)
        self.runbzr("add hello.txt")
        result = self.runbzr("status")
        self.assert_("added:\n  hello.txt\n" in result, result)
        self.runbzr("commit -m added")
        result = self.runbzr("status -r 0..1")
        self.assert_("added:\n  hello.txt\n" in result, result)
        self.build_tree(['world.txt'])
        result = self.runbzr("status -r 0")
        self.assert_("added:\n  hello.txt\n" \
                     "unknown:\n  world.txt\n" in result, result)

    def test_mv_modes(self):
        """Test two modes of operation for mv"""
        from bzrlib.branch import Branch
        b = Branch.initialize('.')
        self.build_tree(['a', 'c', 'subdir/'])
        self.run_bzr_captured(['add', self.test_dir])
        self.run_bzr_captured(['mv', 'a', 'b'])
        self.run_bzr_captured(['mv', 'b', 'subdir'])
        self.run_bzr_captured(['mv', 'subdir/b', 'a'])
        self.run_bzr_captured(['mv', 'a', 'c', 'subdir'])
        self.run_bzr_captured(['mv', 'subdir/a', 'subdir/newa'])

    def test_main_version(self):
        """Check output from version command and master option is reasonable"""
        # output is intentionally passed through to stdout so that we
        # can see the version being tested
        output = self.runbzr('version', backtick=1)
        self.log('bzr version output:')
        self.log(output)
        self.assert_(output.startswith('bzr (bazaar-ng) '))
        self.assertNotEqual(output.index('Canonical'), -1)
        # make sure --version is consistent
        tmp_output = self.runbzr('--version', backtick=1)
        self.log('bzr --version output:')
        self.log(tmp_output)
        self.assertEquals(output, tmp_output)

    def example_branch(test):
        test.runbzr('init')
        file('hello', 'wt').write('foo')
        test.runbzr('add hello')
        test.runbzr('commit -m setup hello')
        file('goodbye', 'wt').write('baz')
        test.runbzr('add goodbye')
        test.runbzr('commit -m setup goodbye')

    def test_export(self):
        os.mkdir('branch')
        os.chdir('branch')
        self.example_branch()
        self.runbzr('export ../latest')
        self.assertEqual(file('../latest/goodbye', 'rt').read(), 'baz')
        self.runbzr('export ../first -r 1')
        self.assert_(not os.path.exists('../first/goodbye'))
        self.assertEqual(file('../first/hello', 'rt').read(), 'foo')
        self.runbzr('export ../first.gz -r 1')
        self.assertEqual(file('../first.gz/hello', 'rt').read(), 'foo')
        self.runbzr('export ../first.bz2 -r 1')
        self.assertEqual(file('../first.bz2/hello', 'rt').read(), 'foo')

        from tarfile import TarFile
        self.runbzr('export ../first.tar -r 1')
        self.assert_(os.path.isfile('../first.tar'))
        tf = TarFile('../first.tar')
        self.assert_('first/hello' in tf.getnames(), tf.getnames())
        self.assertEqual(tf.extractfile('first/hello').read(), 'foo')
        self.runbzr('export ../first.tar.gz -r 1')
        self.assert_(os.path.isfile('../first.tar.gz'))
        self.runbzr('export ../first.tbz2 -r 1')
        self.assert_(os.path.isfile('../first.tbz2'))
        self.runbzr('export ../first.tar.bz2 -r 1')
        self.assert_(os.path.isfile('../first.tar.bz2'))
        self.runbzr('export ../first.tar.tbz2 -r 1')
        self.assert_(os.path.isfile('../first.tar.tbz2'))

        from bz2 import BZ2File
        tf = TarFile('../first.tar.tbz2', 
                     fileobj=BZ2File('../first.tar.tbz2', 'r'))
        self.assert_('first.tar/hello' in tf.getnames(), tf.getnames())
        self.assertEqual(tf.extractfile('first.tar/hello').read(), 'foo')
        self.runbzr('export ../first2.tar -r 1 --root pizza')
        tf = TarFile('../first2.tar')
        self.assert_('pizza/hello' in tf.getnames(), tf.getnames())

        from zipfile import ZipFile
        self.runbzr('export ../first.zip -r 1')
        self.failUnlessExists('../first.zip')
        zf = ZipFile('../first.zip')
        self.assert_('first/hello' in zf.namelist(), zf.namelist())
        self.assertEqual(zf.read('first/hello'), 'foo')

        self.runbzr('export ../first2.zip -r 1 --root pizza')
        zf = ZipFile('../first2.zip')
        self.assert_('pizza/hello' in zf.namelist(), zf.namelist())
        
        self.runbzr('export ../first-zip --format=zip -r 1')
        zf = ZipFile('../first-zip')
        self.assert_('first-zip/hello' in zf.namelist(), zf.namelist())

    def test_diff(self):
        self.example_branch()
        file('hello', 'wt').write('hello world!')
        self.runbzr('commit -m fixing hello')
        output = self.runbzr('diff -r 2..3', backtick=1, retcode=1)
        self.assert_('\n+hello world!' in output)
        output = self.runbzr('diff -r last:3..last:1', backtick=1, retcode=1)
        self.assert_('\n+baz' in output)
        file('moo', 'wb').write('moo')
        self.runbzr('add moo')
        os.unlink('moo')
        self.runbzr('diff')

    def test_diff_branches(self):
        self.build_tree(['branch1/', 'branch1/file', 'branch2/'], line_endings='binary')
        branch = Branch.initialize('branch1')
        branch.working_tree().add(['file'])
        branch.working_tree().commit('add file')
        copy_branch(branch, 'branch2')
        print >> open('branch2/file', 'wb'), 'new content'
        branch2 = Branch.open('branch2')
        branch2.working_tree().commit('update file')
        # should open branch1 and diff against branch2, 
        output = self.run_bzr_captured(['diff', '-r', 'branch:branch2', 
                                        'branch1'],
                                       retcode=1)
        self.assertEquals(("=== modified file 'file'\n"
                           "--- file\t\n"
                           "+++ file\t\n"
                           "@@ -1,1 +1,1 @@\n"
                           "-new content\n"
                           "+contents of branch1/file\n"
                           "\n", ''), output)
        output = self.run_bzr_captured(['diff', 'branch2', 'branch1'],
                                       retcode=1)
        self.assertEqualDiff(("=== modified file 'file'\n"
                              "--- file\t\n"
                              "+++ file\t\n"
                              "@@ -1,1 +1,1 @@\n"
                              "-new content\n"
                              "+contents of branch1/file\n"
                              "\n", ''), output)


    def test_branch(self):
        """Branch from one branch to another."""
        os.mkdir('a')
        os.chdir('a')
        self.example_branch()
        os.chdir('..')
        self.runbzr('branch a b')
        self.assertFileEqual('b\n', 'b/.bzr/branch-name')
        self.runbzr('branch a c -r 1')
        os.chdir('b')
        self.runbzr('commit -m foo --unchanged')
        os.chdir('..')
        # naughty - abstraction violations RBC 20050928  
        print "test_branch used to delete the stores, how is this meant to work ?"
        #shutil.rmtree('a/.bzr/revision-store')
        #shutil.rmtree('a/.bzr/inventory-store', ignore_errors=True)
        #shutil.rmtree('a/.bzr/text-store', ignore_errors=True)
        self.runbzr('branch a d --basis b')

    def test_merge(self):
        from bzrlib.branch import Branch
        
        os.mkdir('a')
        os.chdir('a')
        self.example_branch()
        os.chdir('..')
        self.runbzr('branch a b')
        os.chdir('b')
        file('goodbye', 'wt').write('quux')
        self.runbzr(['commit',  '-m',  "more u's are always good"])

        os.chdir('../a')
        file('hello', 'wt').write('quuux')
        # We can't merge when there are in-tree changes
        self.runbzr('merge ../b', retcode=3)
        self.runbzr(['commit', '-m', "Like an epidemic of u's"])
        self.runbzr('merge ../b -r last:1..last:1 --merge-type blooof',
                    retcode=3)
        self.runbzr('merge ../b -r last:1..last:1 --merge-type merge3')
        self.runbzr('revert --no-backup')
        self.runbzr('merge ../b -r last:1..last:1 --merge-type weave')
        self.runbzr('revert --no-backup')
        self.runbzr('merge ../b -r last:1..last:1 --reprocess')
        self.runbzr('revert --no-backup')
        self.runbzr('merge ../b -r last:1')
        self.check_file_contents('goodbye', 'quux')
        # Merging a branch pulls its revision into the tree
        a = Branch.open('.')
        b = Branch.open('../b')
        a.get_revision_xml(b.last_revision())
        self.log('pending merges: %s', a.working_tree().pending_merges())
        self.assertEquals(a.working_tree().pending_merges(),
                          [b.last_revision()])
        self.runbzr('commit -m merged')
        self.runbzr('merge ../b -r last:1')
        self.assertEqual(Branch.open('.').working_tree().pending_merges(), [])

    def test_merge_with_missing_file(self):
        """Merge handles missing file conflicts"""
        os.mkdir('a')
        os.chdir('a')
        os.mkdir('sub')
        print >> file('sub/a.txt', 'wb'), "hello"
        print >> file('b.txt', 'wb'), "hello"
        print >> file('sub/c.txt', 'wb'), "hello"
        self.runbzr('init')
        self.runbzr('add')
        self.runbzr(('commit', '-m', 'added a'))
        self.runbzr('branch . ../b')
        print >> file('sub/a.txt', 'ab'), "there"
        print >> file('b.txt', 'ab'), "there"
        print >> file('sub/c.txt', 'ab'), "there"
        self.runbzr(('commit', '-m', 'Added there'))
        os.unlink('sub/a.txt')
        os.unlink('sub/c.txt')
        os.rmdir('sub')
        os.unlink('b.txt')
        self.runbzr(('commit', '-m', 'Removed a.txt'))
        os.chdir('../b')
        print >> file('sub/a.txt', 'ab'), "something"
        print >> file('b.txt', 'ab'), "something"
        print >> file('sub/c.txt', 'ab'), "something"
        self.runbzr(('commit', '-m', 'Modified a.txt'))
        self.runbzr('merge ../a/', retcode=1)
        self.assert_(os.path.exists('sub/a.txt.THIS'))
        self.assert_(os.path.exists('sub/a.txt.BASE'))
        os.chdir('../a')
        self.runbzr('merge ../b/', retcode=1)
        self.assert_(os.path.exists('sub/a.txt.OTHER'))
        self.assert_(os.path.exists('sub/a.txt.BASE'))

    def test_inventory(self):
        bzr = self.runbzr
        def output_equals(value, *args):
            out = self.runbzr(['inventory'] + list(args), backtick=True)
            self.assertEquals(out, value)

        bzr('init')
        open('a', 'wb').write('hello\n')
        os.mkdir('b')

        bzr('add a b')
        bzr('commit -m add')

        output_equals('a\n', '--kind', 'file')
        output_equals('b\n', '--kind', 'directory')        

    def test_ls(self):
        """Test the abilities of 'bzr ls'"""
        bzr = self.runbzr
        def bzrout(*args, **kwargs):
            kwargs['backtick'] = True
            return self.runbzr(*args, **kwargs)

        def ls_equals(value, *args):
            out = self.runbzr(['ls'] + list(args), backtick=True)
            self.assertEquals(out, value)

        bzr('init')
        open('a', 'wb').write('hello\n')

        # Can't supply both
        bzr('ls --verbose --null', retcode=3)

        ls_equals('a\n')
        ls_equals('?        a\n', '--verbose')
        ls_equals('a\n', '--unknown')
        ls_equals('', '--ignored')
        ls_equals('', '--versioned')
        ls_equals('a\n', '--unknown', '--ignored', '--versioned')
        ls_equals('', '--ignored', '--versioned')
        ls_equals('a\0', '--null')

        bzr('add a')
        ls_equals('V        a\n', '--verbose')
        bzr('commit -m add')
        
        os.mkdir('subdir')
        ls_equals('V        a\n'
                  '?        subdir/\n'
                  , '--verbose')
        open('subdir/b', 'wb').write('b\n')
        bzr('add')
        ls_equals('V        a\n'
                  'V        subdir/\n'
                  'V        subdir/b\n'
                  , '--verbose')
        bzr('commit -m subdir')

        ls_equals('a\n'
                  'subdir\n'
                  , '--non-recursive')

        ls_equals('V        a\n'
                  'V        subdir/\n'
                  , '--verbose', '--non-recursive')

        # Check what happens in a sub-directory
        os.chdir('subdir')
        ls_equals('b\n')
        ls_equals('b\0'
                  , '--null')
        ls_equals('a\n'
                  'subdir\n'
                  'subdir/b\n'
                  , '--from-root')
        ls_equals('a\0'
                  'subdir\0'
                  'subdir/b\0'
                  , '--from-root', '--null')
        ls_equals('a\n'
                  'subdir\n'
                  , '--from-root', '--non-recursive')

        os.chdir('..')

        # Check what happens when we supply a specific revision
        ls_equals('a\n', '--revision', '1')
        ls_equals('V        a\n'
                  , '--verbose', '--revision', '1')

        os.chdir('subdir')
        ls_equals('', '--revision', '1')

        # Now try to do ignored files.
        os.chdir('..')
        open('blah.py', 'wb').write('unknown\n')
        open('blah.pyo', 'wb').write('ignored\n')
        ls_equals('a\n'
                  'blah.py\n'
                  'blah.pyo\n'
                  'subdir\n'
                  'subdir/b\n')
        ls_equals('V        a\n'
                  '?        blah.py\n'
                  'I        blah.pyo\n'
                  'V        subdir/\n'
                  'V        subdir/b\n'
                  , '--verbose')
        ls_equals('blah.pyo\n'
                  , '--ignored')
        ls_equals('blah.py\n'
                  , '--unknown')
        ls_equals('a\n'
                  'subdir\n'
                  'subdir/b\n'
                  , '--versioned')

    def test_pull_verbose(self):
        """Pull changes from one branch to another and watch the output."""

        os.mkdir('a')
        os.chdir('a')

        bzr = self.runbzr
        self.example_branch()

        os.chdir('..')
        bzr('branch a b')
        os.chdir('b')
        open('b', 'wb').write('else\n')
        bzr('add b')
        bzr(['commit', '-m', 'added b'])

        os.chdir('../a')
        out = bzr('pull --verbose ../b', backtick=True)
        self.failIfEqual(out.find('Added Revisions:'), -1)
        self.failIfEqual(out.find('message:\n  added b'), -1)
        self.failIfEqual(out.find('added b'), -1)

        # Check that --overwrite --verbose prints out the removed entries
        bzr('commit -m foo --unchanged')
        os.chdir('../b')
        bzr('commit -m baz --unchanged')
        bzr('pull ../a', retcode=3)
        out = bzr('pull --overwrite --verbose ../a', backtick=1)

        remove_loc = out.find('Removed Revisions:')
        self.failIfEqual(remove_loc, -1)
        added_loc = out.find('Added Revisions:')
        self.failIfEqual(added_loc, -1)

        removed_message = out.find('message:\n  baz')
        self.failIfEqual(removed_message, -1)
        self.failUnless(remove_loc < removed_message < added_loc)

        added_message = out.find('message:\n  foo')
        self.failIfEqual(added_message, -1)
        self.failUnless(added_loc < added_message)
        
    def test_locations(self):
        """Using and remembering different locations"""
        os.mkdir('a')
        os.chdir('a')
        self.runbzr('init')
        self.runbzr('commit -m unchanged --unchanged')
        self.runbzr('pull', retcode=3)
        self.runbzr('merge', retcode=3)
        self.runbzr('branch . ../b')
        os.chdir('../b')
        self.runbzr('pull')
        self.runbzr('branch . ../c')
        self.runbzr('pull ../c')
        self.runbzr('merge')
        os.chdir('../a')
        self.runbzr('pull ../b')
        self.runbzr('pull')
        self.runbzr('pull ../c')
        self.runbzr('branch ../c ../d')
        shutil.rmtree('../c')
        self.runbzr('pull')
        os.chdir('../b')
        self.runbzr('pull')
        os.chdir('../d')
        self.runbzr('pull', retcode=3)
        self.runbzr('pull ../a --remember')
        self.runbzr('pull')
        
    def test_add_reports(self):
        """add command prints the names of added files."""
        b = Branch.initialize('.')
        self.build_tree(['top.txt', 'dir/', 'dir/sub.txt'])
        out = self.run_bzr_captured(['add'], retcode=0)[0]
        # the ordering is not defined at the moment
        results = sorted(out.rstrip('\n').split('\n'))
        self.assertEquals(['added dir',
                           'added dir'+os.sep+'sub.txt',
                           'added top.txt',],
                          results)

    def test_add_quiet_is(self):
        """add -q does not print the names of added files."""
        b = Branch.initialize('.')
        self.build_tree(['top.txt', 'dir/', 'dir/sub.txt'])
        out = self.run_bzr_captured(['add', '-q'], retcode=0)[0]
        # the ordering is not defined at the moment
        results = sorted(out.rstrip('\n').split('\n'))
        self.assertEquals([''], results)

    def test_add_in_unversioned(self):
        """Try to add a file in an unversioned directory.

        "bzr add" should add the parent(s) as necessary.
        """
        from bzrlib.branch import Branch
        Branch.initialize('.')
        self.build_tree(['inertiatic/', 'inertiatic/esp'])
        self.assertEquals(self.capture('unknowns'), 'inertiatic\n')
        self.run_bzr('add', 'inertiatic/esp')
        self.assertEquals(self.capture('unknowns'), '')

        # Multiple unversioned parents
        self.build_tree(['veil/', 'veil/cerpin/', 'veil/cerpin/taxt'])
        self.assertEquals(self.capture('unknowns'), 'veil\n')
        self.run_bzr('add', 'veil/cerpin/taxt')
        self.assertEquals(self.capture('unknowns'), '')

        # Check whacky paths work
        self.build_tree(['cicatriz/', 'cicatriz/esp'])
        self.assertEquals(self.capture('unknowns'), 'cicatriz\n')
        self.run_bzr('add', 'inertiatic/../cicatriz/esp')
        self.assertEquals(self.capture('unknowns'), '')

    def test_add_in_versioned(self):
        """Try to add a file in a versioned directory.

        "bzr add" should do this happily.
        """
        from bzrlib.branch import Branch
        Branch.initialize('.')
        self.build_tree(['inertiatic/', 'inertiatic/esp'])
        self.assertEquals(self.capture('unknowns'), 'inertiatic\n')
        self.run_bzr('add', '--no-recurse', 'inertiatic')
        self.assertEquals(self.capture('unknowns'), 'inertiatic'+os.sep+'esp\n')
        self.run_bzr('add', 'inertiatic/esp')
        self.assertEquals(self.capture('unknowns'), '')

    def test_subdir_add(self):
        """Add in subdirectory should add only things from there down"""
        from bzrlib.branch import Branch
        
        eq = self.assertEqual
        ass = self.assert_
        chdir = os.chdir
        
        b = Branch.initialize('.')
        t = b.working_tree()
        self.build_tree(['src/', 'README'])
        
        eq(sorted(t.unknowns()),
           ['README', 'src'])
        
        self.run_bzr('add', 'src')
        
        self.build_tree(['src/foo.c'])
        
        chdir('src')
        self.run_bzr('add')
        
        self.assertEquals(self.capture('unknowns'), 'README\n')
        eq(len(t.read_working_inventory()), 3)
                
        chdir('..')
        self.run_bzr('add')
        self.assertEquals(self.capture('unknowns'), '')
        self.run_bzr('check')

    def test_unknown_command(self):
        """Handling of unknown command."""
        out, err = self.run_bzr_captured(['fluffy-badger'],
                                         retcode=3)
        self.assertEquals(out, '')
        err.index('unknown command')

    def create_conflicts(self):
        """Create a conflicted tree"""
        os.mkdir('base')
        os.chdir('base')
        file('hello', 'wb').write("hi world")
        file('answer', 'wb').write("42")
        self.runbzr('init')
        self.runbzr('add')
        self.runbzr('commit -m base')
        self.runbzr('branch . ../other')
        self.runbzr('branch . ../this')
        os.chdir('../other')
        file('hello', 'wb').write("Hello.")
        file('answer', 'wb').write("Is anyone there?")
        self.runbzr('commit -m other')
        os.chdir('../this')
        file('hello', 'wb').write("Hello, world")
        self.runbzr('mv answer question')
        file('question', 'wb').write("What do you get when you multiply six"
                                   "times nine?")
        self.runbzr('commit -m this')

    def test_remerge(self):
        """Remerge command works as expected"""
        self.create_conflicts()
        self.runbzr('merge ../other --show-base', retcode=1)
        conflict_text = file('hello').read()
        assert '|||||||' in conflict_text
        assert 'hi world' in conflict_text
        self.runbzr('remerge', retcode=1)
        conflict_text = file('hello').read()
        assert '|||||||' not in conflict_text
        assert 'hi world' not in conflict_text
        os.unlink('hello.OTHER')
        self.runbzr('remerge hello --merge-type weave', retcode=1)
        assert os.path.exists('hello.OTHER')
        file_id = self.runbzr('file-id hello')
        file_id = self.runbzr('file-id hello.THIS', retcode=3)
        self.runbzr('remerge --merge-type weave', retcode=1)
        assert os.path.exists('hello.OTHER')
        assert not os.path.exists('hello.BASE')
        assert '|||||||' not in conflict_text
        assert 'hi world' not in conflict_text
        self.runbzr('remerge . --merge-type weave --show-base', retcode=3)
        self.runbzr('remerge . --merge-type weave --reprocess', retcode=3)
        self.runbzr('remerge . --show-base --reprocess', retcode=3)
        self.runbzr('remerge hello --show-base', retcode=1)
        self.runbzr('remerge hello --reprocess', retcode=1)
        self.runbzr('resolve --all')
        self.runbzr('commit -m done',)
        self.runbzr('remerge', retcode=3)


    def test_conflicts(self):
        """Handling of merge conflicts"""
        self.create_conflicts()
        self.runbzr('merge ../other --show-base', retcode=1)
        conflict_text = file('hello').read()
        self.assert_('<<<<<<<' in conflict_text)
        self.assert_('>>>>>>>' in conflict_text)
        self.assert_('=======' in conflict_text)
        self.assert_('|||||||' in conflict_text)
        self.assert_('hi world' in conflict_text)
        self.runbzr('revert')
        self.runbzr('resolve --all')
        self.runbzr('merge ../other', retcode=1)
        conflict_text = file('hello').read()
        self.assert_('|||||||' not in conflict_text)
        self.assert_('hi world' not in conflict_text)
        result = self.runbzr('conflicts', backtick=1)
        self.assertEquals(result, "hello\nquestion\n")
        result = self.runbzr('status', backtick=1)
        self.assert_("conflicts:\n  hello\n  question\n" in result, result)
        self.runbzr('resolve hello')
        result = self.runbzr('conflicts', backtick=1)
        self.assertEquals(result, "question\n")
        self.runbzr('commit -m conflicts', retcode=3)
        self.runbzr('resolve --all')
        result = self.runbzr('conflicts', backtick=1)
        self.runbzr('commit -m conflicts')
        self.assertEquals(result, "")

    def test_resign(self):
        """Test re signing of data."""
        import bzrlib.gpg
        oldstrategy = bzrlib.gpg.GPGStrategy
        branch = Branch.initialize('.')
        branch.working_tree().commit("base", allow_pointless=True, rev_id='A')
        try:
            # monkey patch gpg signing mechanism
            from bzrlib.testament import Testament
            bzrlib.gpg.GPGStrategy = bzrlib.gpg.LoopbackGPGStrategy
            self.runbzr('re-sign -r revid:A')
            self.assertEqual(Testament.from_revision(branch,'A').as_short_text(),
                             branch.revision_store.get('A', 'sig').read())
        finally:
            bzrlib.gpg.GPGStrategy = oldstrategy
            
    def test_resign_range(self):
        import bzrlib.gpg
        oldstrategy = bzrlib.gpg.GPGStrategy
        branch = Branch.initialize('.')
        branch.working_tree().commit("base", allow_pointless=True, rev_id='A')
        branch.working_tree().commit("base", allow_pointless=True, rev_id='B')
        branch.working_tree().commit("base", allow_pointless=True, rev_id='C')
        try:
            # monkey patch gpg signing mechanism
            from bzrlib.testament import Testament
            bzrlib.gpg.GPGStrategy = bzrlib.gpg.LoopbackGPGStrategy
            self.runbzr('re-sign -r 1..')
            self.assertEqual(Testament.from_revision(branch,'A').as_short_text(),
                             branch.revision_store.get('A', 'sig').read())
            self.assertEqual(Testament.from_revision(branch,'B').as_short_text(),
                             branch.revision_store.get('B', 'sig').read())
            self.assertEqual(Testament.from_revision(branch,'C').as_short_text(),
                             branch.revision_store.get('C', 'sig').read())
        finally:
            bzrlib.gpg.GPGStrategy = oldstrategy

    def test_push(self):
        # create a source branch
        os.mkdir('my-branch')
        os.chdir('my-branch')
        self.example_branch()

        # with no push target, fail
        self.runbzr('push', retcode=3)
        # with an explicit target work
        self.runbzr('push ../output-branch')
        # with an implicit target work
        self.runbzr('push')
        # nothing missing
        self.runbzr('missing ../output-branch')
        # advance this branch
        self.runbzr('commit --unchanged -m unchanged')

        os.chdir('../output-branch')
        # There is no longer a difference as long as we have
        # access to the working tree
        self.runbzr('diff')

        # But we should be missing a revision
        self.runbzr('missing ../my-branch', retcode=1)

        # diverge the branches
        self.runbzr('commit --unchanged -m unchanged')
        os.chdir('../my-branch')
        # cannot push now
        self.runbzr('push', retcode=3)
        # and there are difference
        self.runbzr('missing ../output-branch', retcode=1)
        self.runbzr('missing --verbose ../output-branch', retcode=1)
        # but we can force a push
        self.runbzr('push --overwrite')
        # nothing missing
        self.runbzr('missing ../output-branch')
        
        # pushing to a new dir with no parent should fail
        self.runbzr('push ../missing/new-branch', retcode=3)
        # unless we provide --create-prefix
        self.runbzr('push --create-prefix ../missing/new-branch')
        # nothing missing
        self.runbzr('missing ../missing/new-branch')

    def test_external_command(self):
        """test that external commands can be run by setting the path"""
        cmd_name = 'test-command'
        output = 'Hello from test-command'
        if sys.platform == 'win32':
            cmd_name += '.bat'
            output += '\r\n'
        else:
            output += '\n'

        oldpath = os.environ.get('BZRPATH', None)

        bzr = self.capture

        try:
            if os.environ.has_key('BZRPATH'):
                del os.environ['BZRPATH']

            f = file(cmd_name, 'wb')
            if sys.platform == 'win32':
                f.write('@echo off\n')
            else:
                f.write('#!/bin/sh\n')
            f.write('echo Hello from test-command')
            f.close()
            os.chmod(cmd_name, 0755)

            # It should not find the command in the local 
            # directory by default, since it is not in my path
            bzr(cmd_name, retcode=3)

            # Now put it into my path
            os.environ['BZRPATH'] = '.'

            bzr(cmd_name)
            # The test suite does not capture stdout for external commands
            # this is because you have to have a real file object
            # to pass to Popen(stdout=FOO), and StringIO is not one of those.
            # (just replacing sys.stdout does not change a spawned objects stdout)
            #self.assertEquals(bzr(cmd_name), output)

            # Make sure empty path elements are ignored
            os.environ['BZRPATH'] = os.pathsep

            bzr(cmd_name, retcode=3)

        finally:
            if oldpath:
                os.environ['BZRPATH'] = oldpath


def listdir_sorted(dir):
    L = os.listdir(dir)
    L.sort()
    return L


class OldTests(ExternalBase):
    """old tests moved from ./testbzr."""

    def test_bzr(self):
        from os import chdir, mkdir
        from os.path import exists

        runbzr = self.runbzr
        capture = self.capture
        progress = self.log

        progress("basic branch creation")
        mkdir('branch1')
        chdir('branch1')
        runbzr('init')

        self.assertEquals(capture('root').rstrip(),
                          os.path.join(self.test_dir, 'branch1'))

        progress("status of new file")

        f = file('test.txt', 'wt')
        f.write('hello world!\n')
        f.close()

        self.assertEquals(capture('unknowns'), 'test.txt\n')

        out = capture("status")
        self.assertEquals(out, 'unknown:\n  test.txt\n')

        out = capture("status --all")
        self.assertEquals(out, "unknown:\n  test.txt\n")

        out = capture("status test.txt --all")
        self.assertEquals(out, "unknown:\n  test.txt\n")

        f = file('test2.txt', 'wt')
        f.write('goodbye cruel world...\n')
        f.close()

        out = capture("status test.txt")
        self.assertEquals(out, "unknown:\n  test.txt\n")

        out = capture("status")
        self.assertEquals(out, ("unknown:\n" "  test.txt\n" "  test2.txt\n"))

        os.unlink('test2.txt')

        progress("command aliases")
        out = capture("st --all")
        self.assertEquals(out, ("unknown:\n" "  test.txt\n"))

        out = capture("stat")
        self.assertEquals(out, ("unknown:\n" "  test.txt\n"))

        progress("command help")
        runbzr("help st")
        runbzr("help")
        runbzr("help commands")
        runbzr("help slartibartfast", 3)

        out = capture("help ci")
        out.index('aliases: ')

        progress("can't rename unversioned file")
        runbzr("rename test.txt new-test.txt", 3)

        progress("adding a file")

        runbzr("add test.txt")
        self.assertEquals(capture("unknowns"), '')
        self.assertEquals(capture("status --all"), ("added:\n" "  test.txt\n"))

        progress("rename newly-added file")
        runbzr("rename test.txt hello.txt")
        self.assert_(os.path.exists("hello.txt"))
        self.assert_(not os.path.exists("test.txt"))

        self.assertEquals(capture("revno"), '0\n')

        progress("add first revision")
        runbzr(['commit', '-m', 'add first revision'])

        progress("more complex renames")
        os.mkdir("sub1")
        runbzr("rename hello.txt sub1", 3)
        runbzr("rename hello.txt sub1/hello.txt", 3)
        runbzr("move hello.txt sub1", 3)

        runbzr("add sub1")
        runbzr("rename sub1 sub2")
        runbzr("move hello.txt sub2")
        self.assertEqual(capture("relpath sub2/hello.txt"),
                         os.path.join("sub2", "hello.txt\n"))

        self.assert_(exists("sub2"))
        self.assert_(exists("sub2/hello.txt"))
        self.assert_(not exists("sub1"))
        self.assert_(not exists("hello.txt"))

        runbzr(['commit', '-m', 'commit with some things moved to subdirs'])

        mkdir("sub1")
        runbzr('add sub1')
        runbzr('move sub2/hello.txt sub1')
        self.assert_(not exists('sub2/hello.txt'))
        self.assert_(exists('sub1/hello.txt'))
        runbzr('move sub2 sub1')
        self.assert_(not exists('sub2'))
        self.assert_(exists('sub1/sub2'))

        runbzr(['commit', '-m', 'rename nested subdirectories'])

        chdir('sub1/sub2')
        self.assertEquals(capture('root')[:-1],
                          os.path.join(self.test_dir, 'branch1'))
        runbzr('move ../hello.txt .')
        self.assert_(exists('./hello.txt'))
        self.assertEquals(capture('relpath hello.txt'),
                          os.path.join('sub1', 'sub2', 'hello.txt') + '\n')
        self.assertEquals(capture('relpath ../../sub1/sub2/hello.txt'), os.path.join('sub1', 'sub2', 'hello.txt\n'))
        runbzr(['commit', '-m', 'move to parent directory'])
        chdir('..')
        self.assertEquals(capture('relpath sub2/hello.txt'), os.path.join('sub1', 'sub2', 'hello.txt\n'))

        runbzr('move sub2/hello.txt .')
        self.assert_(exists('hello.txt'))

        f = file('hello.txt', 'wt')
        f.write('some nice new content\n')
        f.close()

        f = file('msg.tmp', 'wt')
        f.write('this is my new commit\nand it has multiple lines, for fun')
        f.close()

        runbzr('commit -F msg.tmp')

        self.assertEquals(capture('revno'), '5\n')
        runbzr('export -r 5 export-5.tmp')
        runbzr('export export.tmp')

        runbzr('log')
        runbzr('log -v')
        runbzr('log -v --forward')
        runbzr('log -m', retcode=3)
        log_out = capture('log -m commit')
        self.assert_("this is my new commit\n  and" in log_out)
        self.assert_("rename nested" not in log_out)
        self.assert_('revision-id' not in log_out)
        self.assert_('revision-id' in capture('log --show-ids -m commit'))

        log_out = capture('log --line')
        for line in log_out.splitlines():
            self.assert_(len(line) <= 79, len(line))
        self.assert_("this is my new commit and" in log_out)


        progress("file with spaces in name")
        mkdir('sub directory')
        file('sub directory/file with spaces ', 'wt').write('see how this works\n')
        runbzr('add .')
        runbzr('diff', retcode=1)
        runbzr('commit -m add-spaces')
        runbzr('check')

        runbzr('log')
        runbzr('log --forward')

        runbzr('info')

        if has_symlinks():
            progress("symlinks")
            mkdir('symlinks')
            chdir('symlinks')
            runbzr('init')
            os.symlink("NOWHERE1", "link1")
            runbzr('add link1')
            self.assertEquals(self.capture('unknowns'), '')
            runbzr(['commit', '-m', '1: added symlink link1'])
    
            mkdir('d1')
            runbzr('add d1')
            self.assertEquals(self.capture('unknowns'), '')
            os.symlink("NOWHERE2", "d1/link2")
            self.assertEquals(self.capture('unknowns'), 'd1/link2\n')
            # is d1/link2 found when adding d1
            runbzr('add d1')
            self.assertEquals(self.capture('unknowns'), '')
            os.symlink("NOWHERE3", "d1/link3")
            self.assertEquals(self.capture('unknowns'), 'd1/link3\n')
            runbzr(['commit', '-m', '2: added dir, symlink'])
    
            runbzr('rename d1 d2')
            runbzr('move d2/link2 .')
            runbzr('move link1 d2')
            self.assertEquals(os.readlink("./link2"), "NOWHERE2")
            self.assertEquals(os.readlink("d2/link1"), "NOWHERE1")
            runbzr('add d2/link3')
            runbzr('diff', retcode=1)
            runbzr(['commit', '-m', '3: rename of dir, move symlinks, add link3'])
    
            os.unlink("link2")
            os.symlink("TARGET 2", "link2")
            os.unlink("d2/link1")
            os.symlink("TARGET 1", "d2/link1")
            runbzr('diff', retcode=1)
            self.assertEquals(self.capture("relpath d2/link1"), "d2/link1\n")
            runbzr(['commit', '-m', '4: retarget of two links'])
    
            runbzr('remove d2/link1')
            self.assertEquals(self.capture('unknowns'), 'd2/link1\n')
            runbzr(['commit', '-m', '5: remove d2/link1'])
            # try with the rm alias
            runbzr('add d2/link1')
            runbzr(['commit', '-m', '6: add d2/link1'])
            runbzr('rm d2/link1')
            self.assertEquals(self.capture('unknowns'), 'd2/link1\n')
            runbzr(['commit', '-m', '7: remove d2/link1'])
    
            os.mkdir("d1")
            runbzr('add d1')
            runbzr('rename d2/link3 d1/link3new')
            self.assertEquals(self.capture('unknowns'), 'd2/link1\n')
            runbzr(['commit', '-m', '8: remove d2/link1, move/rename link3'])
            
            runbzr(['check'])
            
            runbzr(['export', '-r', '1', 'exp1.tmp'])
            chdir("exp1.tmp")
            self.assertEquals(listdir_sorted("."), [ "link1" ])
            self.assertEquals(os.readlink("link1"), "NOWHERE1")
            chdir("..")
            
            runbzr(['export', '-r', '2', 'exp2.tmp'])
            chdir("exp2.tmp")
            self.assertEquals(listdir_sorted("."), [ "d1", "link1" ])
            chdir("..")
            
            runbzr(['export', '-r', '3', 'exp3.tmp'])
            chdir("exp3.tmp")
            self.assertEquals(listdir_sorted("."), [ "d2", "link2" ])
            self.assertEquals(listdir_sorted("d2"), [ "link1", "link3" ])
            self.assertEquals(os.readlink("d2/link1"), "NOWHERE1")
            self.assertEquals(os.readlink("link2")   , "NOWHERE2")
            chdir("..")
            
            runbzr(['export', '-r', '4', 'exp4.tmp'])
            chdir("exp4.tmp")
            self.assertEquals(listdir_sorted("."), [ "d2", "link2" ])
            self.assertEquals(os.readlink("d2/link1"), "TARGET 1")
            self.assertEquals(os.readlink("link2")   , "TARGET 2")
            self.assertEquals(listdir_sorted("d2"), [ "link1", "link3" ])
            chdir("..")
            
            runbzr(['export', '-r', '5', 'exp5.tmp'])
            chdir("exp5.tmp")
            self.assertEquals(listdir_sorted("."), [ "d2", "link2" ])
            self.assert_(os.path.islink("link2"))
            self.assert_(listdir_sorted("d2")== [ "link3" ])
            chdir("..")
            
            runbzr(['export', '-r', '8', 'exp6.tmp'])
            chdir("exp6.tmp")
            self.assertEqual(listdir_sorted("."), [ "d1", "d2", "link2"])
            self.assertEquals(listdir_sorted("d1"), [ "link3new" ])
            self.assertEquals(listdir_sorted("d2"), [])
            self.assertEquals(os.readlink("d1/link3new"), "NOWHERE3")
            chdir("..")
        else:
            progress("skipping symlink tests")


class HttpTests(TestCaseWithWebserver):
    """Test bzr ui commands against remote branches."""

    def test_branch(self):
        os.mkdir('from')
        branch = Branch.initialize('from')
        branch.working_tree().commit('empty commit for nonsense', allow_pointless=True)
        url = self.get_remote_url('from')
        self.run_bzr('branch', url, 'to')
        branch = Branch.open('to')
        self.assertEqual(1, len(branch.revision_history()))

    def test_log(self):
        self.build_tree(['branch/', 'branch/file'])
        branch = Branch.initialize('branch')
        branch.working_tree().add(['file'])
        branch.working_tree().commit('add file', rev_id='A')
        url = self.get_remote_url('branch/file')
        output = self.capture('log %s' % url)
        self.assertEqual(8, len(output.split('\n')))
        
    def test_check(self):
        self.build_tree(['branch/', 'branch/file'])
        branch = Branch.initialize('branch')
        branch.working_tree().add(['file'])
        branch.working_tree().commit('add file', rev_id='A')
        url = self.get_remote_url('branch/')
        self.run_bzr('check', url)
720 by Martin Pool - start moving external tests into the testsuite framework	1	# Copyright (C) 2005 by Canonical Ltd
736 by Martin Pool - move old blackbox code from testbzr into bzrlib.selftest.blackbox	2	# -- coding: utf-8 --
720 by Martin Pool - start moving external tests into the testsuite framework	3
	4	# This program is free software; you can redistribute it and/or modify
	5	# it under the terms of the GNU General Public License as published by
	6	# the Free Software Foundation; either version 2 of the License, or
	7	# (at your option) any later version.
	8
	9	# This program is distributed in the hope that it will be useful,
	10	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	# GNU General Public License for more details.
	13
	14	# You should have received a copy of the GNU General Public License
	15	# along with this program; if not, write to the Free Software
	16	# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	17
	18
	19	"""Black-box tests for bzr.
	20
	21	These check that it behaves properly when it's invoked through the regular
1403 by Robert Collins merge from martin	22	command-line interface. This doesn't actually run a new interpreter but
1393.1.45 by Martin Pool doc	23	rather starts again from the run_bzr function.
720 by Martin Pool - start moving external tests into the testsuite framework	24	"""
	25
1393.1.45 by Martin Pool doc	26
1185.33.14 by Martin Pool doc	27	# XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1185.33.14 by Martin Pool doc	28	# Note: Please don't add new tests here, it's too big and bulky. Instead add
1512 by Robert Collins Merge from Martin. Adjust check to work with HTTP again.	29	# them into small suites in bzrlib.tests.blackbox.test_FOO for the particular
	30	# UI command/aspect that is being tested.
1185.33.14 by Martin Pool doc	31
1185.33.14 by Martin Pool doc	32
1185.1.25 by Robert Collins merge David Clymer's patch for TestCaseInTestDir.runcmd	33	from cStringIO import StringIO
1185.1.41 by Robert Collins massive patch from Alexander Belchenko - many PEP8 fixes, removes unused function uuid	34	import os
1185.16.43 by Martin Pool - clean up handling of option objects	35	import re
1185.10.1 by Aaron Bentley Added --basis option to bzr branch	36	import shutil
974.1.26 by aaron.bentley at utoronto merged mbp@sourcefrog.net-20050817233101-0939da1cf91f2472	37	import sys
1161 by Martin Pool - add test that 'bzr add' reports the files as they're added	38
	39	from bzrlib.branch import Branch
1432 by Robert Collins branch: namespace	40	from bzrlib.clone import copy_branch