~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2005, 2006 Canonical Ltd

# Authors:  Robert Collins <robert.collins@canonical.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

import bzrlib

from bzrlib.branch import Branch

import bzrlib.bzrdir as bzrdir

from bzrlib.bzrdir import BzrDir

import bzrlib.errors as errors

from bzrlib.errors import NotBranchError, NotVersionedError

from bzrlib.lockdir import LockDir

from bzrlib.osutils import pathjoin, getcwd, has_symlinks

from bzrlib.tests import TestCaseWithTransport

from bzrlib.trace import mutter

from bzrlib.transport import get_transport

import bzrlib.workingtree as workingtree

from bzrlib.workingtree import (TreeEntry, TreeDirectory, TreeFile, TreeLink,

                                WorkingTree)

class TestTreeDirectory(TestCaseWithTransport):

    def test_kind_character(self):

        self.assertEqual(TreeDirectory().kind_character(), '/')

class TestTreeEntry(TestCaseWithTransport):

    def test_kind_character(self):

        self.assertEqual(TreeEntry().kind_character(), '???')

class TestTreeFile(TestCaseWithTransport):

    def test_kind_character(self):

        self.assertEqual(TreeFile().kind_character(), '')

class TestTreeLink(TestCaseWithTransport):

    def test_kind_character(self):

        self.assertEqual(TreeLink().kind_character(), '')

class TestDefaultFormat(TestCaseWithTransport):

    def test_get_set_default_format(self):

        old_format = workingtree.WorkingTreeFormat.get_default_format()

        # default is 3

        self.assertTrue(isinstance(old_format, workingtree.WorkingTreeFormat3))

        workingtree.WorkingTreeFormat.set_default_format(SampleTreeFormat())

        try:

            # the default branch format is used by the meta dir format

            # which is not the default bzrdir format at this point

            dir = bzrdir.BzrDirMetaFormat1().initialize('.')

            dir.create_repository()

            dir.create_branch()

            result = dir.create_workingtree()

            self.assertEqual(result, 'A tree')

        finally:

            workingtree.WorkingTreeFormat.set_default_format(old_format)

        self.assertEqual(old_format, workingtree.WorkingTreeFormat.get_default_format())

class SampleTreeFormat(workingtree.WorkingTreeFormat):

    """A sample format

    this format is initializable, unsupported to aid in testing the 

    open and open_downlevel routines.

    """

    def get_format_string(self):

        """See WorkingTreeFormat.get_format_string()."""

        return "Sample tree format."

    def initialize(self, a_bzrdir, revision_id=None):

        """Sample branches cannot be created."""

        t = a_bzrdir.get_workingtree_transport(self)

        t.put('format', StringIO(self.get_format_string()))

        return 'A tree'

    def is_supported(self):

        return False

    def open(self, transport, _found=False):

        return "opened tree."

class TestWorkingTreeFormat(TestCaseWithTransport):

    """Tests for the WorkingTreeFormat facility."""

    def test_find_format(self):

        # is the right format object found for a working tree?

        # create a branch with a few known format objects.

        self.build_tree(["foo/", "bar/"])

        def check_format(format, url):

            dir = format._matchingbzrdir.initialize(url)

            dir.create_repository()

            dir.create_branch()

            format.initialize(dir)

            t = get_transport(url)

            found_format = workingtree.WorkingTreeFormat.find_format(dir)

            self.failUnless(isinstance(found_format, format.__class__))

        check_format(workingtree.WorkingTreeFormat3(), "bar")

    def test_find_format_no_tree(self):

        dir = bzrdir.BzrDirMetaFormat1().initialize('.')

        self.assertRaises(errors.NoWorkingTree,

                          workingtree.WorkingTreeFormat.find_format,

                          dir)

    def test_find_format_unknown_format(self):

        dir = bzrdir.BzrDirMetaFormat1().initialize('.')

        dir.create_repository()

        dir.create_branch()

        SampleTreeFormat().initialize(dir)

        self.assertRaises(errors.UnknownFormatError,

                          workingtree.WorkingTreeFormat.find_format,

                          dir)

    def test_register_unregister_format(self):

        format = SampleTreeFormat()

        # make a control dir

        dir = bzrdir.BzrDirMetaFormat1().initialize('.')

        dir.create_repository()

        dir.create_branch()

        # make a branch

        format.initialize(dir)

        # register a format for it.

        workingtree.WorkingTreeFormat.register_format(format)

        # which branch.Open will refuse (not supported)

        self.assertRaises(errors.UnsupportedFormatError, workingtree.WorkingTree.open, '.')

        # but open_downlevel will work

        self.assertEqual(format.open(dir), workingtree.WorkingTree.open_downlevel('.'))

        # unregister the format

        workingtree.WorkingTreeFormat.unregister_format(format)

class TestWorkingTreeFormat3(TestCaseWithTransport):

    """Tests specific to WorkingTreeFormat3."""

    def test_disk_layout(self):

        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())

        control.create_repository()

        control.create_branch()

        tree = workingtree.WorkingTreeFormat3().initialize(control)

        # we want:

        # format 'Bazaar-NG Working Tree format 3'

        # inventory = blank inventory

        # pending-merges = ''

        # stat-cache = ??

        # no inventory.basis yet

        t = control.get_workingtree_transport(None)

        self.assertEqualDiff('Bazaar-NG Working Tree format 3',

                             t.get('format').read())

        self.assertEqualDiff('<inventory format="5">\n'

                             '</inventory>\n',

                             t.get('inventory').read())

        self.assertEqualDiff('### bzr hashcache v5\n',

                             t.get('stat-cache').read())

        self.assertFalse(t.has('inventory.basis'))

        # no last-revision file means 'None' or 'NULLREVISION'

        self.assertFalse(t.has('last-revision'))

        # TODO RBC 20060210 do a commit, check the inventory.basis is created 

        # correctly and last-revision file becomes present.

    def test_uses_lockdir(self):

        """WorkingTreeFormat3 uses its own LockDir:

            - lock is a directory

            - when the WorkingTree is locked, LockDir can see that

        """

        t = self.get_transport()

        url = self.get_url()

        dir = bzrdir.BzrDirMetaFormat1().initialize(url)

        repo = dir.create_repository()

        branch = dir.create_branch()

        tree = workingtree.WorkingTreeFormat3().initialize(dir)

        self.assertIsDirectory('.bzr', t)

        self.assertIsDirectory('.bzr/checkout', t)

        self.assertIsDirectory('.bzr/checkout/lock', t)

        our_lock = LockDir(t, '.bzr/checkout/lock')

        self.assertEquals(our_lock.peek(), None)

        tree.lock_write()

        self.assertTrue(our_lock.peek())

        tree.unlock()

        self.assertEquals(our_lock.peek(), None)