/brz/remove-bazaar

# Copyright (C) 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

"""Tests for the GitMemoryTree class."""

from ... import errors

from . import TestCaseWithTransport

class TestMemoryTree(TestCaseWithTransport):

    def make_branch(self, path, format='git'):

        return super(TestMemoryTree, self).make_branch(path, format=format)

    def make_branch_and_tree(self, path, format='git'):

        return super(TestMemoryTree, self).make_branch_and_tree(path, format=format)

    def test_create_on_branch(self):

        """Creating a mutable tree on a trivial branch works."""

        branch = self.make_branch('branch')

        tree = branch.create_memorytree()

        self.assertEqual(branch.controldir, tree.controldir)

        self.assertEqual(branch, tree.branch)

        self.assertEqual([], tree.get_parent_ids())

    def test_create_on_branch_with_content(self):

        """Creating a mutable tree on a non-trivial branch works."""

        wt = self.make_branch_and_tree('sometree')

        self.build_tree(['sometree/foo'])

        wt.add(['foo'])

        rev_id = wt.commit('first post')

        tree = wt.branch.create_memorytree()

        with tree.lock_read():

            self.assertEqual([rev_id], tree.get_parent_ids())

            self.assertEqual(b'contents of sometree/foo\n',

                             tree.get_file('foo').read())

    def test_lock_tree_write(self):

        """Check we can lock_tree_write and unlock MemoryTrees."""

        branch = self.make_branch('branch')

        tree = branch.create_memorytree()

        tree.lock_tree_write()

        tree.unlock()

    def test_lock_tree_write_after_read_fails(self):

        """Check that we error when trying to upgrade a read lock to write."""

        branch = self.make_branch('branch')

        tree = branch.create_memorytree()

        tree.lock_read()

        self.assertRaises(errors.ReadOnlyError, tree.lock_tree_write)

        tree.unlock()

    def test_lock_write(self):

        """Check we can lock_write and unlock MemoryTrees."""

        branch = self.make_branch('branch')

        tree = branch.create_memorytree()

        tree.lock_write()

        tree.unlock()

    def test_lock_write_after_read_fails(self):

        """Check that we error when trying to upgrade a read lock to write."""

        branch = self.make_branch('branch')

        tree = branch.create_memorytree()

        tree.lock_read()

        self.assertRaises(errors.ReadOnlyError, tree.lock_write)

        tree.unlock()

    def test_add_with_kind(self):

        branch = self.make_branch('branch')

        tree = branch.create_memorytree()

        tree.lock_write()

        tree.add(['', 'afile', 'adir'], None,

                 ['directory', 'file', 'directory'])

        self.assertTrue(tree.is_versioned('afile'))

        self.assertFalse(tree.is_versioned('adir'))

        self.assertFalse(tree.has_filename('afile'))

        self.assertFalse(tree.has_filename('adir'))

        tree.unlock()

    def test_put_new_file(self):

        branch = self.make_branch('branch')

        tree = branch.create_memorytree()

        with tree.lock_write():

            tree.add(['', 'foo'], kinds=['directory', 'file'])

            tree.put_file_bytes_non_atomic('foo', b'barshoom')

            self.assertEqual(b'barshoom', tree.get_file('foo').read())

    def test_put_existing_file(self):

        branch = self.make_branch('branch')

        tree = branch.create_memorytree()

        with tree.lock_write():

            tree.add(['', 'foo'], kinds=['directory', 'file'])

            tree.put_file_bytes_non_atomic('foo', b'first-content')

            tree.put_file_bytes_non_atomic('foo', b'barshoom')

            self.assertEqual(b'barshoom', tree.get_file('foo').read())

    def test_add_in_subdir(self):

        branch = self.make_branch('branch')

        tree = branch.create_memorytree()

        with tree.lock_write():

            tree.add([''], None, ['directory'])

            tree.mkdir('adir')

            tree.put_file_bytes_non_atomic('adir/afile', b'barshoom')

            tree.add(['adir/afile'], None, ['file'])

            self.assertTrue(tree.is_versioned('adir/afile'))

            self.assertTrue(tree.is_versioned('adir'))

    def test_commit_trivial(self):

        """Smoke test for commit on a MemoryTree.

        Becamse of commits design and layering, if this works, all commit

        logic should work quite reliably.

        """

        branch = self.make_branch('branch')

        tree = branch.create_memorytree()

        with tree.lock_write():

            tree.add(['', 'foo'], kinds=['directory', 'file'])

            tree.put_file_bytes_non_atomic('foo', b'barshoom')

            revision_id = tree.commit('message baby')

            # the parents list for the tree should have changed.

            self.assertEqual([revision_id], tree.get_parent_ids())

        # and we should have a revision that is accessible outside the tree lock

        revtree = tree.branch.repository.revision_tree(revision_id)

        with revtree.lock_read():

            self.assertEqual(b'barshoom', revtree.get_file('foo').read())

    def test_unversion(self):

        """Some test for unversion of a memory tree."""

        branch = self.make_branch('branch')

        tree = branch.create_memorytree()

        with tree.lock_write():

            tree.add(['', 'foo'], kinds=['directory', 'file'])

            tree.unversion(['foo'])

            self.assertFalse(tree.is_versioned('foo'))

            self.assertFalse(tree.has_filename('foo'))

    def test_last_revision(self):

        """There should be a last revision method we can call."""

        tree = self.make_branch_and_memory_tree('branch')

        with tree.lock_write():

            tree.add('')

            rev_id = tree.commit('first post')

        self.assertEqual(rev_id, tree.last_revision())

    def test_rename_file(self):

        tree = self.make_branch_and_memory_tree('branch')

        tree.lock_write()

        self.addCleanup(tree.unlock)

        tree.add(['', 'foo'], [b'root-id', b'foo-id'], ['directory', 'file'])

        tree.put_file_bytes_non_atomic('foo', b'content\n')

        tree.commit('one', rev_id=b'rev-one')

        tree.rename_one('foo', 'bar')

        self.assertEqual('bar', tree.id2path(b'foo-id'))

        self.assertEqual(b'content\n', tree._file_transport.get_bytes('bar'))

        self.assertRaises(errors.NoSuchFile,

                          tree._file_transport.get_bytes, 'foo')

        tree.commit('two', rev_id=b'rev-two')

        self.assertEqual(b'content\n', tree._file_transport.get_bytes('bar'))

        self.assertRaises(errors.NoSuchFile,

                          tree._file_transport.get_bytes, 'foo')

        rev_tree2 = tree.branch.repository.revision_tree(b'rev-two')

        self.assertEqual('bar', rev_tree2.id2path(b'foo-id'))

        self.assertEqual(b'content\n', rev_tree2.get_file_text('bar'))

    def test_rename_file_to_subdir(self):

        tree = self.make_branch_and_memory_tree('branch')

        tree.lock_write()

        self.addCleanup(tree.unlock)

        tree.add('')

        tree.mkdir('subdir', b'subdir-id')

        tree.add('foo', b'foo-id', 'file')

        tree.put_file_bytes_non_atomic('foo', b'content\n')

        tree.commit('one', rev_id=b'rev-one')

        tree.rename_one('foo', 'subdir/bar')

        self.assertEqual('subdir/bar', tree.id2path(b'foo-id'))

        self.assertEqual(b'content\n',

                         tree._file_transport.get_bytes('subdir/bar'))

        tree.commit('two', rev_id=b'rev-two')

        rev_tree2 = tree.branch.repository.revision_tree(b'rev-two')

        self.assertEqual('subdir/bar', rev_tree2.id2path(b'foo-id'))