~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2004, 2005, 2006 by 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

import datetime

import os

import time

from bzrlib import (

    errors,

    )

from bzrlib.builtins import merge

from bzrlib.tests import TestCaseWithTransport

from bzrlib.revisionspec import RevisionSpec

def spec_in_history(spec, branch):

    """A simple helper to change a revision spec into a branch search"""

    return RevisionSpec.from_string(spec).in_history(branch)

# Basic class, which just creates a really basic set of revisions

class TestRevisionSpec(TestCaseWithTransport):

    def setUp(self):

        super(TestRevisionSpec, self).setUp()

        self.tree = self.make_branch_and_tree('tree')

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

        self.tree.add(['a'])

        self.tree.commit('a', rev_id='r1')

        self.tree2 = self.tree.bzrdir.sprout('tree2').open_workingtree()

        self.tree2.commit('alt', rev_id='alt_r2')

        self.tree.branch.repository.fetch(self.tree2.branch.repository,

                                          revision_id='alt_r2')

        self.tree.set_pending_merges(['alt_r2'])

        self.tree.commit('second', rev_id='r2')

    def get_in_history(self, revision_spec):

        return spec_in_history(revision_spec, self.tree.branch)

    def assertInHistoryIs(self, exp_revno, exp_revision_id, revision_spec):

        rev_info = self.get_in_history(revision_spec)

        self.assertEqual(exp_revno, rev_info.revno,

                         'Revision spec: %s returned wrong revno: %s != %s'

                         % (revision_spec, exp_revno, rev_info.revno))

        self.assertEqual(exp_revision_id, rev_info.rev_id,

                         'Revision spec: %s returned wrong revision id:'

                         ' %s != %s'

                         % (revision_spec, exp_revision_id, rev_info.rev_id))

    def assertInvalid(self, revision_spec, extra=''):

        try:

            self.get_in_history(revision_spec)

        except errors.InvalidRevisionSpec, e:

            self.assertEqual(revision_spec, e.spec)

            self.assertEqual(extra, e.extra)

        else:

            self.fail('Expected InvalidRevisionSpec to be raised for %s'

                      % (revision_spec,))

class TestOddRevisionSpec(TestRevisionSpec):

    """Test things that aren't normally thought of as revision specs"""

    def test_none(self):

        self.assertInHistoryIs(0, None, None)

    def test_object(self):

        self.assertRaises(TypeError, RevisionSpec.from_string, object())

    def test_unregistered_spec(self):

        self.assertRaises(errors.NoSuchRevisionSpec,

                          RevisionSpec.from_string, 'foo')

        self.assertRaises(errors.NoSuchRevisionSpec,

                          RevisionSpec.from_string, '123a')

class TestRevisionSpec_revno(TestRevisionSpec):

    def test_positive_int(self):

        self.assertInHistoryIs(0, None, '0')

        self.assertInHistoryIs(1, 'r1', '1')

        self.assertInHistoryIs(2, 'r2', '2')

        self.assertInvalid('3')

    def test_negative_int(self):

        self.assertInHistoryIs(2, 'r2', '-1')

        self.assertInHistoryIs(1, 'r1', '-2')

        self.assertInHistoryIs(1, 'r1', '-3')

        self.assertInHistoryIs(1, 'r1', '-4')

        self.assertInHistoryIs(1, 'r1', '-100')

    def test_positive(self):

        self.assertInHistoryIs(0, None, 'revno:0')

        self.assertInHistoryIs(1, 'r1', 'revno:1')

        self.assertInHistoryIs(2, 'r2', 'revno:2')

        self.assertInvalid('revno:3')

    def test_negative(self):

        self.assertInHistoryIs(2, 'r2', 'revno:-1')

        self.assertInHistoryIs(1, 'r1', 'revno:-2')

        self.assertInHistoryIs(1, 'r1', 'revno:-3')

        self.assertInHistoryIs(1, 'r1', 'revno:-4')

    def test_invalid_number(self):

        # Get the right exception text

        try:

            int('X')

        except ValueError, e:

            pass

        self.assertInvalid('revno:X', extra='\n' + str(e))

    def test_missing_number_and_branch(self):

        self.assertInvalid('revno::',

                           extra='\ncannot have an empty revno and no branch')

    def test_invalid_number_with_branch(self):

        try:

            int('X')

        except ValueError, e:

            pass

        self.assertInvalid('revno:X:tree2', extra='\n' + str(e))

    def test_non_exact_branch(self):

        # It seems better to require an exact path to the branch

        # Branch.open() rather than using Branch.open_containing()

        spec = RevisionSpec.from_string('revno:2:tree2/a')

        self.assertRaises(errors.NotBranchError,

                          spec.in_history, self.tree.branch)

    def test_with_branch(self):

        # Passing a URL overrides the supplied branch path

        revinfo = self.get_in_history('revno:2:tree2')

        self.assertNotEqual(self.tree.branch.base, revinfo.branch.base)

        self.assertEqual(self.tree2.branch.base, revinfo.branch.base)

        self.assertEqual(2, revinfo.revno)

        self.assertEqual('alt_r2', revinfo.rev_id)

    def test_int_with_branch(self):

        revinfo = self.get_in_history('2:tree2')

        self.assertNotEqual(self.tree.branch.base, revinfo.branch.base)

        self.assertEqual(self.tree2.branch.base, revinfo.branch.base)

        self.assertEqual(2, revinfo.revno)

        self.assertEqual('alt_r2', revinfo.rev_id)

    def test_with_url(self):

        url = self.get_url() + '/tree2'

        revinfo = self.get_in_history('revno:2:%s' % (url,))

        self.assertNotEqual(self.tree.branch.base, revinfo.branch.base)

        self.assertEqual(self.tree2.branch.base, revinfo.branch.base)

        self.assertEqual(2, revinfo.revno)

        self.assertEqual('alt_r2', revinfo.rev_id)

    def test_negative_with_url(self):

        url = self.get_url() + '/tree2'

        revinfo = self.get_in_history('revno:-1:%s' % (url,))

        self.assertNotEqual(self.tree.branch.base, revinfo.branch.base)

        self.assertEqual(self.tree2.branch.base, revinfo.branch.base)

        self.assertEqual(2, revinfo.revno)

        self.assertEqual('alt_r2', revinfo.rev_id)

    def test_different_history_lengths(self):

        # Make sure we use the revisions and offsets in the supplied branch

        # not the ones in the original branch.

        self.tree2.commit('three', rev_id='r3')

        self.assertInHistoryIs(3, 'r3', 'revno:3:tree2')

        self.assertInHistoryIs(3, 'r3', 'revno:-1:tree2')

    def test_invalid_branch(self):

        self.assertRaises(errors.NotBranchError,

                          self.get_in_history, 'revno:-1:tree3')

    def test_invalid_revno_in_branch(self):

        self.tree.commit('three', rev_id='r3')

        self.assertInvalid('revno:3:tree2')

    def test_revno_n_path(self):

        """Old revno:N:path tests"""

        wta = self.make_branch_and_tree('a')

        ba = wta.branch

        wta.commit('Commit one', rev_id='a@r-0-1')

        wta.commit('Commit two', rev_id='a@r-0-2')

        wta.commit('Commit three', rev_id='a@r-0-3')

        wtb = self.make_branch_and_tree('b')

        bb = wtb.branch

        wtb.commit('Commit one', rev_id='b@r-0-1')

        wtb.commit('Commit two', rev_id='b@r-0-2')

        wtb.commit('Commit three', rev_id='b@r-0-3')

        self.assertEqual((1, 'a@r-0-1'),

                         spec_in_history('revno:1:a/', ba))

        # The argument of in_history should be ignored since it is

        # redundant with the path in the spec.

        self.assertEqual((1, 'a@r-0-1'),

                         spec_in_history('revno:1:a/', None))

        self.assertEqual((1, 'a@r-0-1'),

                         spec_in_history('revno:1:a/', bb))

        self.assertEqual((2, 'b@r-0-2'),

                         spec_in_history('revno:2:b/', None))

class TestRevisionSpec_revid(TestRevisionSpec):

    def test_in_history(self):

        # We should be able to access revisions that are directly

        # in the history.

        self.assertInHistoryIs(1, 'r1', 'revid:r1')

        self.assertInHistoryIs(2, 'r2', 'revid:r2')

    def test_missing(self):

        self.assertInvalid('revid:r3')

    def test_merged(self):

        """We can reach revisions in the ancestry"""

        self.assertInHistoryIs(None, 'alt_r2', 'revid:alt_r2')

    def test_not_here(self):

        self.tree2.commit('alt third', rev_id='alt_r3')

        # It exists in tree2, but not in tree

        self.assertInvalid('revid:alt_r3')

    def test_in_repository(self):

        """We can get any revision id in the repository"""

        # XXX: This may change in the future, but for now, it is true

        self.tree2.commit('alt third', rev_id='alt_r3')

        self.tree.branch.repository.fetch(self.tree2.branch.repository,

                                          revision_id='alt_r3')

        self.assertInHistoryIs(None, 'alt_r3', 'revid:alt_r3')

class TestRevisionSpec_last(TestRevisionSpec):

    def test_positive(self):

        self.assertInHistoryIs(2, 'r2', 'last:1')

        self.assertInHistoryIs(1, 'r1', 'last:2')

        self.assertInHistoryIs(0, None, 'last:3')

    def test_empty(self):

        self.assertInHistoryIs(2, 'r2', 'last:')

    def test_negative(self):

        self.assertInvalid('last:-1',

                           extra='\nyou must supply a positive value')

    def test_missing(self):

        self.assertInvalid('last:4')

    def test_no_history(self):

        tree = self.make_branch_and_tree('tree3')

        self.assertRaises(errors.NoCommits,

                          spec_in_history, 'last:', tree.branch)

    def test_not_a_number(self):

        try:

            int('Y')

        except ValueError, e:

            pass

        self.assertInvalid('last:Y', extra='\n' + str(e))

class TestRevisionSpec_before(TestRevisionSpec):

    def test_int(self):

        self.assertInHistoryIs(1, 'r1', 'before:2')

        self.assertInHistoryIs(1, 'r1', 'before:-1')

    def test_before_one(self):

        self.assertInHistoryIs(0, None, 'before:1')

    def test_before_none(self):

        self.assertInvalid('before:0',

                           extra='\ncannot go before the null: revision')

    def test_revid(self):

        self.assertInHistoryIs(1, 'r1', 'before:revid:r2')

    def test_last(self):

        self.assertInHistoryIs(1, 'r1', 'before:last:1')

    def test_alt_revid(self):

        # This will grab the left-most ancestor for alternate histories

        self.assertInHistoryIs(1, 'r1', 'before:revid:alt_r2')

    def test_alt_no_parents(self):

        new_tree = self.make_branch_and_tree('new_tree')

        new_tree.commit('first', rev_id='new_r1')

        self.tree.branch.repository.fetch(new_tree.branch.repository,

                                          revision_id='new_r1')

        self.assertInHistoryIs(0, None, 'before:revid:new_r1')

class TestRevisionSpec_tag(TestRevisionSpec):

    def test_invalid(self):

        self.assertInvalid('tag:foo', extra='\ntag: namespace registered,'

                                            ' but not implemented')

class TestRevisionSpec_date(TestRevisionSpec):

    def setUp(self):

        super(TestRevisionSpec, self).setUp()

        new_tree = self.make_branch_and_tree('new_tree')

        new_tree.commit('Commit one', rev_id='new_r1',

                        timestamp=time.time() - 60*60*24)

        new_tree.commit('Commit two', rev_id='new_r2')

        new_tree.commit('Commit three', rev_id='new_r3')

        self.tree = new_tree

    def test_tomorrow(self):

        self.assertInvalid('date:tomorrow')

    def test_today(self):

        self.assertInHistoryIs(2, 'new_r2', 'date:today')

        self.assertInHistoryIs(1, 'new_r1', 'before:date:today')

    def test_yesterday(self):

        self.assertInHistoryIs(1, 'new_r1', 'date:yesterday')

    def test_invalid(self):

        self.assertInvalid('date:foobar', extra='\ninvalid date')

        # You must have '-' between year/month/day

        self.assertInvalid('date:20040404', extra='\ninvalid date')

        # Need 2 digits for each date piece

        self.assertInvalid('date:2004-4-4', extra='\ninvalid date')

    def test_day(self):

        now = datetime.datetime.now()

        self.assertInHistoryIs(2, 'new_r2',

            'date:%04d-%02d-%02d' % (now.year, now.month, now.day))

class TestRevisionSpec_ancestor(TestRevisionSpec):

    def test_non_exact_branch(self):

        # It seems better to require an exact path to the branch

        # Branch.open() rather than using Branch.open_containing()

        self.assertRaises(errors.NotBranchError,

                          self.get_in_history, 'ancestor:tree2/a')

    def test_simple(self):

        # Common ancestor of trees is 'alt_r2'

        self.assertInHistoryIs(None, 'alt_r2', 'ancestor:tree2')

        # Going the other way, we get a valid revno

        tmp = self.tree

        self.tree = self.tree2

        self.tree2 = tmp

        self.assertInHistoryIs(2, 'alt_r2', 'ancestor:tree')

    def test_self(self):

        self.assertInHistoryIs(2, 'r2', 'ancestor:tree')

    def test_unrelated(self):

        new_tree = self.make_branch_and_tree('new_tree')

        new_tree.commit('Commit one', rev_id='new_r1')

        new_tree.commit('Commit two', rev_id='new_r2')

        new_tree.commit('Commit three', rev_id='new_r3')

        # With no common ancestor, we should raise another user error

        self.assertRaises(errors.NoCommonAncestor,

                          self.get_in_history, 'ancestor:new_tree')

    def test_no_commits(self):

        new_tree = self.make_branch_and_tree('new_tree')

        self.assertRaises(errors.NoCommits,

                          spec_in_history, 'ancestor:new_tree',

                                           self.tree.branch)

        self.assertRaises(errors.NoCommits,

                          spec_in_history, 'ancestor:tree',

                                           new_tree.branch)

class TestRevisionSpec_branch(TestRevisionSpec):

    def test_non_exact_branch(self):

        # It seems better to require an exact path to the branch

        # Branch.open() rather than using Branch.open_containing()

        self.assertRaises(errors.NotBranchError,

                          self.get_in_history, 'branch:tree2/a')

    def test_simple(self):

        self.assertInHistoryIs(None, 'alt_r2', 'branch:tree2')

    def test_self(self):

        self.assertInHistoryIs(2, 'r2', 'branch:tree')

    def test_unrelated(self):

        new_tree = self.make_branch_and_tree('new_tree')

        new_tree.commit('Commit one', rev_id='new_r1')

        new_tree.commit('Commit two', rev_id='new_r2')

        new_tree.commit('Commit three', rev_id='new_r3')

        self.assertInHistoryIs(None, 'new_r3', 'branch:new_tree')

        # XXX: Right now, we use fetch() to make sure the remote revisions

        # have been pulled into the local branch. We may change that

        # behavior in the future.

        self.failUnless(self.tree.branch.repository.has_revision('new_r3'))

    def test_no_commits(self):

        new_tree = self.make_branch_and_tree('new_tree')

        self.assertRaises(errors.NoCommits,

                          self.get_in_history, 'branch:new_tree')