# Copyright (C) 2009, 2010 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 InterBranch.pull behaviour.""" from breezy.branch import Branch from breezy.controldir import ControlDir from breezy import errors from breezy.memorytree import MemoryTree from breezy.revision import NULL_REVISION from breezy.tests import TestNotApplicable from breezy.tests.per_interbranch import TestCaseWithInterBranch # The tests here are based on the tests in # breezy.tests.per_branch.test_pull class TestPull(TestCaseWithInterBranch): def test_pull_convergence_simple(self): # when revisions are pulled, the left-most accessible parents must # become the revision-history. parent = self.make_from_branch_and_tree('parent') parent.commit('1st post', allow_pointless=True) try: mine = self.sprout_to(parent.controldir, 'mine').open_workingtree() except errors.NoRoundtrippingSupport: raise TestNotApplicable( 'lossless push between %r and %r not supported' % (self.branch_format_from, self.branch_format_to)) mine.commit('my change', allow_pointless=True) try: parent.merge_from_branch(mine.branch) except errors.NoRoundtrippingSupport: raise TestNotApplicable( 'lossless push between %r and %r not supported' % (self.branch_format_from, self.branch_format_to)) p2 = parent.commit('merge my change') mine.pull(parent.branch) self.assertEqual(p2, mine.branch.last_revision()) def test_pull_merged_indirect(self): # it should be possible to do a pull from one branch into another # when the tip of the target was merged into the source branch # via a third branch - so its buried in the ancestry and is not # directly accessible. parent = self.make_from_branch_and_tree('parent') parent.commit('1st post', allow_pointless=True) try: mine = self.sprout_to(parent.controldir, 'mine').open_workingtree() except errors.NoRoundtrippingSupport: raise TestNotApplicable( 'lossless push between %r and %r not supported' % (self.branch_format_from, self.branch_format_to)) mine.commit('my change', allow_pointless=True) other = self.sprout_to(parent.controldir, 'other').open_workingtree() other.merge_from_branch(mine.branch) other.commit('merge my change') try: parent.merge_from_branch(other.branch) except errors.NoRoundtrippingSupport: raise TestNotApplicable( 'lossless push between %r and %r not supported' % (self.branch_format_from, self.branch_format_to)) p2 = parent.commit('merge other') mine.pull(parent.branch) self.assertEqual(p2, mine.branch.last_revision()) def test_pull_updates_checkout_and_master(self): """Pulling into a checkout updates the checkout and the master branch""" master_tree = self.make_from_branch_and_tree('master') master_tree.commit('master') checkout = master_tree.branch.create_checkout('checkout') try: other = self.sprout_to( master_tree.branch.controldir, 'other').open_workingtree() except errors.NoRoundtrippingSupport: raise TestNotApplicable( 'lossless push between %r and %r not supported' % (self.branch_format_from, self.branch_format_to)) rev2 = other.commit('other commit') # now pull, which should update both checkout and master. try: checkout.branch.pull(other.branch) except errors.NoRoundtrippingSupport: raise TestNotApplicable( 'lossless push between %r and %r not supported' % (self.branch_format_from, self.branch_format_to)) self.assertEqual(rev2, checkout.branch.last_revision()) self.assertEqual(rev2, master_tree.branch.last_revision()) def test_pull_raises_specific_error_on_master_connection_error(self): master_tree = self.make_from_branch_and_tree('master') checkout = master_tree.branch.create_checkout('checkout') other = self.sprout_to( master_tree.branch.controldir, 'other').open_branch() # move the branch out of the way on disk to cause a connection # error. try: master_tree.branch.controldir.destroy_branch() except errors.UnsupportedOperation: raise TestNotApplicable( 'control format does not support destroying default branch') # try to pull, which should raise a BoundBranchConnectionFailure. self.assertRaises(errors.BoundBranchConnectionFailure, checkout.branch.pull, other) def test_pull_returns_result(self): parent = self.make_from_branch_and_tree('parent') p1 = parent.commit('1st post') try: mine = self.sprout_to(parent.controldir, 'mine').open_workingtree() except errors.NoRoundtrippingSupport: raise TestNotApplicable( 'lossless push between %r and %r not supported' % (self.branch_format_from, self.branch_format_to)) m1 = mine.commit('my change') try: result = parent.branch.pull(mine.branch) except errors.NoRoundtrippingSupport: raise TestNotApplicable( 'lossless push between %r and %r not supported' % (self.branch_format_from, self.branch_format_to)) self.assertIsNot(None, result) self.assertIs(mine.branch, result.source_branch) self.assertIs(parent.branch, result.target_branch) self.assertIs(parent.branch, result.master_branch) self.assertIs(None, result.local_branch) self.assertEqual(1, result.old_revno) self.assertEqual(p1, result.old_revid) self.assertEqual(2, result.new_revno) self.assertEqual(m1, result.new_revid) self.assertEqual([], result.tag_conflicts) def test_pull_overwrite(self): tree_a = self.make_from_branch_and_tree('tree_a') tree_a.commit('message 1') try: tree_b = self.sprout_to( tree_a.controldir, 'tree_b').open_workingtree() except errors.NoRoundtrippingSupport: raise TestNotApplicable( 'lossless push between %r and %r not supported' % (self.branch_format_from, self.branch_format_to)) rev2a = tree_a.commit('message 2a') rev2b = tree_b.commit('message 2b') try: self.assertRaises(errors.DivergedBranches, tree_a.pull, tree_b.branch) except errors.NoRoundtrippingSupport: raise TestNotApplicable( 'lossless push between %r and %r not supported' % (self.branch_format_from, self.branch_format_to)) self.assertRaises(errors.DivergedBranches, tree_a.branch.pull, tree_b.branch, overwrite=False, stop_revision=rev2b) # It should not have updated the branch tip, but it should have fetched # the revision if the repository supports "invisible" revisions. self.assertEqual(rev2a, tree_a.branch.last_revision()) if tree_a.branch.repository._format.supports_unreferenced_revisions: self.assertTrue(tree_a.branch.repository.has_revision(rev2b)) tree_a.branch.pull(tree_b.branch, overwrite=True, stop_revision=rev2b) self.assertEqual(rev2b, tree_a.branch.last_revision()) self.assertEqual(tree_b.branch.last_revision(), tree_a.branch.last_revision()) class TestPullHook(TestCaseWithInterBranch): def setUp(self): self.hook_calls = [] super(TestPullHook, self).setUp() def capture_post_pull_hook(self, result): """Capture post pull hook calls to self.hook_calls. The call is logged, as is some state of the two branches. """ if result.local_branch: local_locked = result.local_branch.is_locked() local_base = result.local_branch.base else: local_locked = None local_base = None self.hook_calls.append( ('post_pull', result.source_branch, local_base, result.master_branch.base, result.old_revno, result.old_revid, result.new_revno, result.new_revid, result.source_branch.is_locked(), local_locked, result.master_branch.is_locked())) def test_post_pull_empty_history(self): target = self.make_to_branch('target') source = self.make_from_branch('source') Branch.hooks.install_named_hook('post_pull', self.capture_post_pull_hook, None) target.pull(source) # with nothing there we should still get a notification, and # have both branches locked at the notification time. self.assertEqual([ ('post_pull', source, None, target.base, 0, NULL_REVISION, 0, NULL_REVISION, True, None, True) ], self.hook_calls) def test_post_pull_bound_branch(self): # pulling to a bound branch should pass in the master branch to the # hook, allowing the correct number of emails to be sent, while still # allowing hooks that want to modify the target to do so to both # instances. target = self.make_to_branch('target') local = self.make_from_branch('local') try: local.bind(target) except errors.UpgradeRequired: # We can't bind this format to itself- typically it is the local # branch that doesn't support binding. As of May 2007 # remotebranches can't be bound. Let's instead make a new local # branch of the default type, which does allow binding. # See https://bugs.launchpad.net/bzr/+bug/112020 local = ControlDir.create_branch_convenience('local2') local.bind(target) source = self.make_from_branch('source') Branch.hooks.install_named_hook('post_pull', self.capture_post_pull_hook, None) local.pull(source) # with nothing there we should still get a notification, and # have both branches locked at the notification time. self.assertEqual([ ('post_pull', source, local.base, target.base, 0, NULL_REVISION, 0, NULL_REVISION, True, True, True) ], self.hook_calls) def test_post_pull_nonempty_history(self): target = self.make_to_branch_and_memory_tree('target') target.lock_write() target.add('') rev1 = target.commit('rev 1') target.unlock() sourcedir = target.controldir.clone(self.get_url('source')) source = MemoryTree.create_on_branch(sourcedir.open_branch()) rev2 = source.commit('rev 2') Branch.hooks.install_named_hook('post_pull', self.capture_post_pull_hook, None) target.branch.pull(source.branch) # with nothing there we should still get a notification, and # have both branches locked at the notification time. self.assertEqual([ ('post_pull', source.branch, None, target.branch.base, 1, rev1, 2, rev2, True, None, True) ], self.hook_calls)