/brz/remove-bazaar

# Copyright (C) 2006-2009, 2011 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

"""Tests for MultiWalker."""

from breezy import (

    revision,

    multiwalker,

    tree as _mod_tree,

    )

from breezy.tests import (

    TestCaseWithTransport,

    )

class TestMultiWalker(TestCaseWithTransport):

    def assertStepOne(self, has_more, path, file_id, iterator):

        retval = multiwalker.MultiWalker._step_one(iterator)

        if not has_more:

            self.assertIs(None, path)

            self.assertIs(None, file_id)

            self.assertEqual((False, None, None), retval)

        else:

            self.assertEqual((has_more, path, file_id),

                             (retval[0], retval[1], retval[2].file_id))

    def test__step_one_empty(self):

        tree = self.make_branch_and_tree('empty')

        repo = tree.branch.repository

        empty_tree = repo.revision_tree(revision.NULL_REVISION)

        iterator = empty_tree.iter_entries_by_dir()

        self.assertStepOne(False, None, None, iterator)

        self.assertStepOne(False, None, None, iterator)

    def test__step_one(self):

        tree = self.make_branch_and_tree('tree')

        self.build_tree(['tree/a', 'tree/b/', 'tree/b/c'])

        tree.add(['a', 'b', 'b/c'], [b'a-id', b'b-id', b'c-id'])

        iterator = tree.iter_entries_by_dir()

        tree.lock_read()

        self.addCleanup(tree.unlock)

        root_id = tree.path2id('')

        self.assertStepOne(True, '', root_id, iterator)

        self.assertStepOne(True, 'a', b'a-id', iterator)

        self.assertStepOne(True, 'b', b'b-id', iterator)

        self.assertStepOne(True, 'b/c', b'c-id', iterator)

        self.assertStepOne(False, None, None, iterator)

        self.assertStepOne(False, None, None, iterator)

    def assertWalkerNext(self, exp_path, exp_file_id, master_has_node,

                         exp_other_paths, iterator):

        """Check what happens when we step the iterator.

        :param path: The path for this entry

        :param file_id: The file_id for this entry

        :param master_has_node: Does the master tree have this entry?

        :param exp_other_paths: A list of other_path values.

        :param iterator: The iterator to step

        """

        path, file_id, master_ie, other_values = next(iterator)

        self.assertEqual((exp_path, exp_file_id), (path, file_id),

                         'Master entry did not match')

        if master_has_node:

            self.assertIsNot(None, master_ie, 'master should have an entry')

        else:

            self.assertIs(None, master_ie, 'master should not have an entry')

        self.assertEqual(len(exp_other_paths), len(other_values),

                         'Wrong number of other entries')

        other_paths = []

        other_file_ids = []

        for path, ie in other_values:

            other_paths.append(path)

            if ie is None:

                other_file_ids.append(None)

            else:

                other_file_ids.append(ie.file_id)

        exp_file_ids = []

        for path in exp_other_paths:

            if path is None:

                exp_file_ids.append(None)

            else:

                exp_file_ids.append(file_id)

        self.assertEqual(exp_other_paths, other_paths, "Other paths incorrect")

        self.assertEqual(exp_file_ids, other_file_ids,

                         "Other file_ids incorrect")

    def lock_and_get_basis_and_root_id(self, tree):

        tree.lock_read()

        self.addCleanup(tree.unlock)

        basis_tree = tree.basis_tree()

        basis_tree.lock_read()

        self.addCleanup(basis_tree.unlock)

        root_id = tree.path2id('')

        return basis_tree, root_id

    def test_simple_stepping(self):

        tree = self.make_branch_and_tree('tree')

        self.build_tree(['tree/a', 'tree/b/', 'tree/b/c'])

        tree.add(['a', 'b', 'b/c'], [b'a-id', b'b-id', b'c-id'])

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

        basis_tree, root_id = self.lock_and_get_basis_and_root_id(tree)

        walker = multiwalker.MultiWalker(tree, [basis_tree])

        iterator = walker.iter_all()

        self.assertWalkerNext(u'', root_id, True, [u''], iterator)

        self.assertWalkerNext(u'a', b'a-id', True, [u'a'], iterator)

        self.assertWalkerNext(u'b', b'b-id', True, [u'b'], iterator)

        self.assertWalkerNext(u'b/c', b'c-id', True, [u'b/c'], iterator)

        self.assertRaises(StopIteration, next, iterator)

    def test_master_has_extra(self):

        tree = self.make_branch_and_tree('tree')

        self.build_tree(['tree/a', 'tree/b/', 'tree/c', 'tree/d'])

        tree.add(['a', 'b', 'd'], [b'a-id', b'b-id', b'd-id'])

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

        tree.add(['c'], [b'c-id'])

        basis_tree, root_id = self.lock_and_get_basis_and_root_id(tree)

        walker = multiwalker.MultiWalker(tree, [basis_tree])

        iterator = walker.iter_all()

        self.assertWalkerNext(u'', root_id, True, [u''], iterator)

        self.assertWalkerNext(u'a', b'a-id', True, [u'a'], iterator)

        self.assertWalkerNext(u'b', b'b-id', True, [u'b'], iterator)

        self.assertWalkerNext(u'c', b'c-id', True, [None], iterator)

        self.assertWalkerNext(u'd', b'd-id', True, [u'd'], iterator)

        self.assertRaises(StopIteration, next, iterator)

    def test_master_renamed_to_earlier(self):

        """The record is still present, it just shows up early."""

        tree = self.make_branch_and_tree('tree')

        self.build_tree(['tree/a', 'tree/c', 'tree/d'])

        tree.add(['a', 'c', 'd'], [b'a-id', b'c-id', b'd-id'])

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

        tree.rename_one('d', 'b')

        basis_tree, root_id = self.lock_and_get_basis_and_root_id(tree)

        walker = multiwalker.MultiWalker(tree, [basis_tree])

        iterator = walker.iter_all()

        self.assertWalkerNext(u'', root_id, True, [u''], iterator)

        self.assertWalkerNext(u'a', b'a-id', True, [u'a'], iterator)

        self.assertWalkerNext(u'b', b'd-id', True, [u'd'], iterator)

        self.assertWalkerNext(u'c', b'c-id', True, [u'c'], iterator)

        self.assertRaises(StopIteration, next, iterator)

    def test_master_renamed_to_later(self):

        tree = self.make_branch_and_tree('tree')

        self.build_tree(['tree/a', 'tree/b', 'tree/d'])

        tree.add(['a', 'b', 'd'], [b'a-id', b'b-id', b'd-id'])

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

        tree.rename_one('b', 'e')

        basis_tree, root_id = self.lock_and_get_basis_and_root_id(tree)

        walker = multiwalker.MultiWalker(tree, [basis_tree])

        iterator = walker.iter_all()

        self.assertWalkerNext(u'', root_id, True, [u''], iterator)

        self.assertWalkerNext(u'a', b'a-id', True, [u'a'], iterator)

        self.assertWalkerNext(u'd', b'd-id', True, [u'd'], iterator)

        self.assertWalkerNext(u'e', b'b-id', True, [u'b'], iterator)

        self.assertRaises(StopIteration, next, iterator)

    def test_other_extra_in_middle(self):

        tree = self.make_branch_and_tree('tree')

        self.build_tree(['tree/a', 'tree/b', 'tree/d'])

        tree.add(['a', 'b', 'd'], [b'a-id', b'b-id', b'd-id'])

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

        tree.remove(['b'])

        basis_tree, root_id = self.lock_and_get_basis_and_root_id(tree)

        walker = multiwalker.MultiWalker(tree, [basis_tree])

        iterator = walker.iter_all()

        self.assertWalkerNext(u'', root_id, True, [u''], iterator)

        self.assertWalkerNext(u'a', b'a-id', True, [u'a'], iterator)

        self.assertWalkerNext(u'd', b'd-id', True, [u'd'], iterator)

        self.assertWalkerNext(u'b', b'b-id', False, [u'b'], iterator)

        self.assertRaises(StopIteration, next, iterator)

    def test_other_extra_at_end(self):

        tree = self.make_branch_and_tree('tree')

        self.build_tree(['tree/a', 'tree/b', 'tree/d'])

        tree.add(['a', 'b', 'd'], [b'a-id', b'b-id', b'd-id'])

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

        tree.remove(['d'])

        basis_tree, root_id = self.lock_and_get_basis_and_root_id(tree)

        walker = multiwalker.MultiWalker(tree, [basis_tree])

        iterator = walker.iter_all()

        self.assertWalkerNext(u'', root_id, True, [u''], iterator)

        self.assertWalkerNext(u'a', b'a-id', True, [u'a'], iterator)

        self.assertWalkerNext(u'b', b'b-id', True, [u'b'], iterator)

        self.assertWalkerNext(u'd', b'd-id', False, [u'd'], iterator)

        self.assertRaises(StopIteration, next, iterator)

    def test_others_extra_at_end(self):

        tree = self.make_branch_and_tree('tree')

        self.build_tree(['tree/a', 'tree/b', 'tree/c', 'tree/d', 'tree/e'])

        tree.add(['a', 'b', 'c', 'd', 'e'],

                 [b'a-id', b'b-id', b'c-id', b'd-id', b'e-id'])

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

        tree.remove(['e'])

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

        tree.remove(['d'])

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

        tree.remove(['c'])

        basis_tree, root_id = self.lock_and_get_basis_and_root_id(tree)

        first_tree = tree.branch.repository.revision_tree(b'first-rev-id')

        second_tree = tree.branch.repository.revision_tree(b'second-rev-id')

        walker = multiwalker.MultiWalker(

            tree, [basis_tree, first_tree, second_tree])

        iterator = walker.iter_all()

        self.assertWalkerNext(u'', root_id, True, [u'', u'', u''], iterator)

        self.assertWalkerNext(u'a', b'a-id', True,

                              [u'a', u'a', u'a'], iterator)

        self.assertWalkerNext(u'b', b'b-id', True,

                              [u'b', u'b', u'b'], iterator)

        self.assertWalkerNext(u'c', b'c-id', False,

                              [u'c', u'c', u'c'], iterator)

        self.assertWalkerNext(u'd', b'd-id', False,

                              [None, u'd', u'd'], iterator)

        self.assertWalkerNext(u'e', b'e-id', False,

                              [None, u'e', None], iterator)

        self.assertRaises(StopIteration, next, iterator)

    def test_different_file_id_in_others(self):

        tree = self.make_branch_and_tree('tree')

        self.build_tree(['tree/a', 'tree/b', 'tree/c/'])

        tree.add(['a', 'b', 'c'], [b'a-id', b'b-id', b'c-id'])

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

        tree.rename_one('b', 'c/d')

        self.build_tree(['tree/b'])

        tree.add(['b'], [b'b2-id'])

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

        tree.rename_one('a', 'c/e')

        self.build_tree(['tree/a'])

        tree.add(['a'], [b'a2-id'])

        basis_tree, root_id = self.lock_and_get_basis_and_root_id(tree)

        first_tree = tree.branch.repository.revision_tree(b'first-rev-id')

        walker = multiwalker.MultiWalker(tree, [basis_tree, first_tree])

        iterator = walker.iter_all()

        self.assertWalkerNext(u'', root_id, True, [u'', u''], iterator)

        self.assertWalkerNext(u'a', b'a2-id', True, [None, None], iterator)

        self.assertWalkerNext(u'b', b'b2-id', True, [u'b', None], iterator)

        self.assertWalkerNext(u'c', b'c-id', True, [u'c', u'c'], iterator)

        self.assertWalkerNext(u'c/d', b'b-id', True, [u'c/d', u'b'], iterator)

        self.assertWalkerNext(u'c/e', b'a-id', True, [u'a', u'a'], iterator)

        self.assertRaises(StopIteration, next, iterator)

    def assertLtByDirblock(self, lt_val, path1, path2):

        self.assertEqual(

            lt_val, multiwalker.MultiWalker._lt_path_by_dirblock(path1, path2))

    def test__lt_path_by_dirblock(self):

        # We only support Unicode strings at this point

        self.assertRaises(

            TypeError, multiwalker.MultiWalker._lt_path_by_dirblock, b'', b'b')

        self.assertLtByDirblock(False, u'', u'')

        self.assertLtByDirblock(False, u'a', u'a')

        self.assertLtByDirblock(False, u'a/b', u'a/b')

        self.assertLtByDirblock(False, u'a/b/c', u'a/b/c')

        self.assertLtByDirblock(False, u'a-a', u'a')

        self.assertLtByDirblock(True, u'a-a', u'a/a')

        self.assertLtByDirblock(True, u'a=a', u'a/a')

        self.assertLtByDirblock(False, u'a-a/a', u'a/a')

        self.assertLtByDirblock(False, u'a=a/a', u'a/a')

        self.assertLtByDirblock(False, u'a-a/a', u'a/a/a')

        self.assertLtByDirblock(False, u'a=a/a', u'a/a/a')

        self.assertLtByDirblock(False, u'a-a/a/a', u'a/a/a')

        self.assertLtByDirblock(False, u'a=a/a/a', u'a/a/a')

    def assertPathToKey(self, expected, path):

        self.assertEqual(expected, multiwalker.MultiWalker._path_to_key(path))

    def test__path_to_key(self):

        self.assertPathToKey(([u''], u''), u'')

        self.assertPathToKey(([u''], u'a'), u'a')

        self.assertPathToKey(([u'a'], u'b'), u'a/b')

        self.assertPathToKey(([u'a', u'b'], u'c'), u'a/b/c')