~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2005-2012 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 of bound branches (binding, unbinding, commit, etc) command."""

from bzrlib import (

    branch,

    bzrdir,

    errors,

    tests,

    )

from bzrlib.tests import script

class TestBoundBranches(tests.TestCaseWithTransport):

    def create_branches(self):

        base_tree = self.make_branch_and_tree('base')

        base_tree.lock_write()

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

        base_tree.add(['a', 'b'])

        base_tree.commit('init')

        base_tree.unlock()

        branch = base_tree.branch

        child_tree = branch.create_checkout('child')

        self.check_revno(1, 'child')

        d = bzrdir.BzrDir.open('child')

        self.assertNotEqual(None, d.open_branch().get_master_branch())

        return base_tree, child_tree

    def check_revno(self, val, loc='.'):

        self.assertEqual(

            val, bzrdir.BzrDir.open(loc).open_branch().last_revision_info()[0])

    def test_simple_binding(self):

        tree = self.make_branch_and_tree('base')

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

        tree.add('a', 'b')

        tree.commit(message='init')

        tree.bzrdir.sprout('child')

        self.run_bzr('bind ../base', working_dir='child')

        d = bzrdir.BzrDir.open('child')

        self.assertNotEqual(None, d.open_branch().get_master_branch())

        self.run_bzr('unbind', working_dir='child')

        self.assertEqual(None, d.open_branch().get_master_branch())

        self.run_bzr('unbind', retcode=3, working_dir='child')

    def test_bind_branch6(self):

        branch1 = self.make_branch('branch1', format='dirstate-tags')

        error = self.run_bzr('bind', retcode=3, working_dir='branch1')[1]

        self.assertEndsWith(

            error, 'No location supplied and no previous location known\n')

    def setup_rebind(self, format):

        branch1 = self.make_branch('branch1')

        branch2 = self.make_branch('branch2', format=format)

        branch2.bind(branch1)

        branch2.unbind()

    def test_rebind_branch6(self):

        self.setup_rebind('dirstate-tags')

        self.run_bzr('bind', working_dir='branch2')

        b = branch.Branch.open('branch2')

        self.assertEndsWith(b.get_bound_location(), '/branch1/')

    def test_rebind_branch5(self):

        self.setup_rebind('knit')

        error = self.run_bzr('bind', retcode=3, working_dir='branch2')[1]

        self.assertEndsWith(

            error, 'No location supplied.  This format does not remember'

            ' old locations.\n')

    def test_bound_commit(self):

        child_tree = self.create_branches()[1]

        self.build_tree_contents([('child/a', 'new contents')])

        child_tree.commit(message='child')

        self.check_revno(2, 'child')

        # Make sure it committed on the parent

        self.check_revno(2, 'base')

    def test_bound_fail(self):

        # Make sure commit fails if out of date.

        base_tree, child_tree = self.create_branches()

        self.build_tree_contents([

            ('base/a',  'new base contents\n'   ),

            ('child/b', 'new b child contents\n')])

        base_tree.commit(message='base')

        self.check_revno(2, 'base')

        self.check_revno(1, 'child')

        self.assertRaises(errors.BoundBranchOutOfDate, child_tree.commit,

                                                            message='child')

        self.check_revno(1, 'child')

        child_tree.update()

        self.check_revno(2, 'child')

        child_tree.commit(message='child')

        self.check_revno(3, 'child')

        self.check_revno(3, 'base')

    def test_double_binding(self):

        child_tree = self.create_branches()[1]

        child_tree.bzrdir.sprout('child2')

        # Double binding succeeds, but committing to child2 should fail

        self.run_bzr('bind ../child', working_dir='child2')

        # Refresh the child tree object as 'unbind' modified it

        child2_tree = bzrdir.BzrDir.open('child2').open_workingtree()

        self.assertRaises(errors.CommitToDoubleBoundBranch,

                child2_tree.commit, message='child2', allow_pointless=True)

    def test_unbinding(self):

        base_tree, child_tree = self.create_branches()

        self.build_tree_contents([

            ('base/a',  'new base contents\n'   ),

            ('child/b', 'new b child contents\n')])

        base_tree.commit(message='base')

        self.check_revno(2, 'base')

        self.check_revno(1, 'child')

        self.run_bzr("commit -m child", retcode=3, working_dir='child')

        self.check_revno(1, 'child')

        self.run_bzr('unbind', working_dir='child')

        # Refresh the child tree/branch objects as 'unbind' modified them

        child_tree = child_tree.bzrdir.open_workingtree()

        child_tree.commit(message='child')

        self.check_revno(2, 'child')

    def test_commit_remote_bound(self):

        # It is not possible to commit to a branch

        # which is bound to a branch which is bound

        base_tree, child_tree = self.create_branches()

        base_tree.bzrdir.sprout('newbase')

        # There is no way to know that B has already

        # been bound by someone else, otherwise it

        # might be nice if this would fail

        self.run_bzr('bind ../newbase', working_dir='base')

        self.run_bzr('commit -m failure --unchanged', retcode=3,

                     working_dir='child')

    def test_pull_updates_both(self):

        base_tree = self.create_branches()[0]

        newchild_tree = base_tree.bzrdir.sprout('newchild').open_workingtree()

        self.build_tree_contents([('newchild/b', 'newchild b contents\n')])

        newchild_tree.commit(message='newchild')

        self.check_revno(2, 'newchild')

        # The pull should succeed, and update

        # the bound parent branch

        self.run_bzr('pull ../newchild', working_dir='child')

        self.check_revno(2, 'child')

        self.check_revno(2, 'base')

    def test_pull_local_updates_local(self):

        base_tree = self.create_branches()[0]

        newchild_tree = base_tree.bzrdir.sprout('newchild').open_workingtree()

        self.build_tree_contents([('newchild/b', 'newchild b contents\n')])

        newchild_tree.commit(message='newchild')

        self.check_revno(2, 'newchild')

        # The pull should succeed, and update

        # the bound parent branch

        self.run_bzr('pull ../newchild --local', working_dir='child')

        self.check_revno(2, 'child')

        self.check_revno(1, 'base')

    def test_bind_diverged(self):

        base_tree, child_tree = self.create_branches()

        base_branch = base_tree.branch

        child_branch = child_tree.branch

        self.run_bzr('unbind', working_dir='child')

        # Refresh the child tree/branch objects as 'unbind' modified them

        child_tree = child_tree.bzrdir.open_workingtree()

        child_tree.commit(message='child', allow_pointless=True)

        self.check_revno(2, 'child')

        self.check_revno(1, 'base')

        base_tree.commit(message='base', allow_pointless=True)

        self.check_revno(2, 'base')

        # These branches have diverged, but bind should succeed anyway

        self.run_bzr('bind ../base', working_dir='child')

        # Refresh the child tree/branch objects as 'bind' modified them

        child_tree = child_tree.bzrdir.open_workingtree()

        # This should turn the local commit into a merge

        child_tree.update()

        child_tree.commit(message='merged')

        self.check_revno(3, 'child')

        self.assertEquals(child_tree.branch.last_revision(),

                          base_tree.branch.last_revision())

    def test_bind_parent_ahead(self):

        base_tree = self.create_branches()[0]

        self.run_bzr('unbind', working_dir='child')

        base_tree.commit(message='base', allow_pointless=True)

        self.check_revno(1, 'child')

        self.run_bzr('bind ../base', working_dir='child')

        # binding does not pull data:

        self.check_revno(1, 'child')

        self.run_bzr('unbind', working_dir='child')

        # Check and make sure it also works if parent is ahead multiple

        base_tree.commit(message='base 3', allow_pointless=True)

        base_tree.commit(message='base 4', allow_pointless=True)

        base_tree.commit(message='base 5', allow_pointless=True)

        self.check_revno(5, 'base')

        self.check_revno(1, 'child')

        self.run_bzr('bind ../base', working_dir='child')

        self.check_revno(1, 'child')

    def test_bind_child_ahead(self):

        # test binding when the master branches history is a prefix of the

        # childs - it should bind ok but the revision histories should not

        # be altered

        child_tree = self.create_branches()[1]

        self.run_bzr('unbind', working_dir='child')

        # Refresh the child tree/branch objects as 'bind' modified them

        child_tree = child_tree.bzrdir.open_workingtree()

        child_tree.commit(message='child', allow_pointless=True)

        self.check_revno(2, 'child')

        self.check_revno(1, 'base')

        self.run_bzr('bind ../base', working_dir='child')

        self.check_revno(1, 'base')

        # Check and make sure it also works if child is ahead multiple

        self.run_bzr('unbind', working_dir='child')

        child_tree.commit(message='child 3', allow_pointless=True)

        child_tree.commit(message='child 4', allow_pointless=True)

        child_tree.commit(message='child 5', allow_pointless=True)

        self.check_revno(5, 'child')

        self.check_revno(1, 'base')

        self.run_bzr('bind ../base', working_dir='child')

        self.check_revno(1, 'base')

    def test_bind_fail_if_missing(self):

        """We should not be able to bind to a missing branch."""

        tree = self.make_branch_and_tree('tree_1')

        tree.commit('dummy commit')

        self.run_bzr_error(['Not a branch.*no-such-branch/'],

                           ['bind', '../no-such-branch'],

                           working_dir='tree_1')

        self.assertIs(None, tree.branch.get_bound_location())

    def test_commit_after_merge(self):

        base_tree, child_tree = self.create_branches()

        # We want merge to be able to be a local only

        # operation, because it can be without violating

        # the binding invariants.

        # But we can't fail afterwards

        other_tree = child_tree.bzrdir.sprout('other').open_workingtree()

        other_branch = other_tree.branch

        self.build_tree_contents([('other/c', 'file c\n')])

        other_tree.add('c')

        other_tree.commit(message='adding c')

        new_rev_id = other_branch.last_revision()

        child_tree.merge_from_branch(other_branch)

        self.assertPathExists('child/c')

        self.assertEqual([new_rev_id], child_tree.get_parent_ids()[1:])

        # Make sure the local branch has the installed revision

        self.assertTrue(child_tree.branch.repository.has_revision(new_rev_id))

        # And make sure that the base tree does not

        self.assertFalse(base_tree.branch.repository.has_revision(new_rev_id))

        # Commit should succeed, and cause merged revisions to

        # be pulled into base

        self.run_bzr(['commit', '-m', 'merge other'], working_dir='child')

        self.check_revno(2, 'child')

        self.check_revno(2, 'base')

        self.assertTrue(base_tree.branch.repository.has_revision(new_rev_id))

    def test_pull_overwrite(self):

        # XXX: This test should be moved to branch-implemenations/test_pull

        child_tree = self.create_branches()[1]

        other_tree = child_tree.bzrdir.sprout('other').open_workingtree()

        self.build_tree_contents([('other/a', 'new contents\n')])

        other_tree.commit(message='changed a')

        self.check_revno(2, 'other')

        self.build_tree_contents([

            ('other/a', 'new contents\nand then some\n')])

        other_tree.commit(message='another a')

        self.check_revno(3, 'other')

        self.build_tree_contents([

            ('other/a', 'new contents\nand then some\nand some more\n')])

        other_tree.commit('yet another a')

        self.check_revno(4, 'other')

        self.build_tree_contents([('child/a', 'also changed a\n')])

        child_tree.commit(message='child modified a')

        self.check_revno(2, 'child')

        self.check_revno(2, 'base')

        self.run_bzr('pull --overwrite ../other', working_dir='child')

        # both the local and master should have been updated.

        self.check_revno(4, 'child')

        self.check_revno(4, 'base')

    def test_bind_directory(self):

        """Test --directory option"""

        tree = self.make_branch_and_tree('base')

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

        tree.add('a', 'b')

        tree.commit(message='init')

        branch = tree.branch

        tree.bzrdir.sprout('child')

        self.run_bzr('bind --directory=child base')

        d = bzrdir.BzrDir.open('child')

        self.assertNotEqual(None, d.open_branch().get_master_branch())

        self.run_bzr('unbind -d child')

        self.assertEqual(None, d.open_branch().get_master_branch())

        self.run_bzr('unbind --directory child', retcode=3)

class TestBind(script.TestCaseWithTransportAndScript):

    def test_bind_when_bound(self):

        self.run_script("""

$ bzr init trunk

...

$ bzr init copy

...

$ cd copy

$ bzr bind ../trunk

$ bzr bind

2>bzr: ERROR: Branch is already bound

""")

    def test_bind_before_bound(self):

        self.run_script("""

$ bzr init trunk

...

$ cd trunk

$ bzr bind

2>bzr: ERROR: No location supplied and no previous location known

""")