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bzrlib/tests/branch_implementations/test_uncommit.py
 
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# Copyright (C) 2007 Canonical Ltd
 
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#
 
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# This program is free software; you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
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# the Free Software Foundation; either version 2 of the License, or
 
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# (at your option) any later version.
 
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#
 
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# This program is distributed in the hope that it will be useful,
 
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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# GNU General Public License for more details.
 
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#
 
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# You should have received a copy of the GNU General Public License
 
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# along with this program; if not, write to the Free Software
 
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
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"""Tests for the contract of uncommit on branches.
 
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Note that uncommit currently is not a branch method; it should be.
 
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"""
 
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from bzrlib.branch import Branch
 
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from bzrlib import errors
 
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from bzrlib.tests.branch_implementations.test_branch import TestCaseWithBranch
 
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from bzrlib.uncommit import uncommit
 
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class TestUncommitHook(TestCaseWithBranch):
 
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    def setUp(self):
 
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        self.hook_calls = []
 
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        TestCaseWithBranch.setUp(self)
 
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    def capture_post_uncommit_hook(self, local, master, old_revno,
 
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        old_revid, new_revno, new_revid):
 
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        """Capture post uncommit hook calls to self.hook_calls.
 
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        The call is logged, as is some state of the two branches.
 
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        """
 
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        if local:
 
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            local_locked = local.is_locked()
 
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            local_base = local.base
 
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        else:
 
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            local_locked = None
 
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            local_base = None
 
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        self.hook_calls.append(
 
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            ('post_uncommit', local_base, master.base, old_revno, old_revid,
 
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             new_revno, new_revid, local_locked, master.is_locked()))
 
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    def test_post_uncommit_to_origin(self):
 
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        tree = self.make_branch_and_memory_tree('branch')
 
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        tree.lock_write()
 
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        tree.add('')
 
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        revid = tree.commit('a revision')
 
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        tree.unlock()
 
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        Branch.hooks.install_hook('post_uncommit',
 
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            self.capture_post_uncommit_hook)
 
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        uncommit(tree.branch)
 
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        # with nothing left we should still get a notification, and
 
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        # have the branch locked at notification time.
 
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        self.assertEqual([
 
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            ('post_uncommit', None, tree.branch.base, 1, revid,
 
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             0, None, None, True)
 
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            ],
 
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            self.hook_calls)
 
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    def test_post_uncommit_bound(self):
 
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        master = self.make_branch('master')
 
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        tree = self.make_branch_and_memory_tree('local')
 
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        try:
 
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            tree.branch.bind(master)
 
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        except errors.UpgradeRequired:
 
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            # cant bind this format, the test is irrelevant.
 
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            return
 
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        tree.lock_write()
 
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        tree.add('')
 
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        revid = tree.commit('a revision')
 
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        tree.unlock()
 
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        Branch.hooks.install_hook('post_uncommit',
 
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            self.capture_post_uncommit_hook)
 
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        uncommit(tree.branch)
 
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        # with nothing left we should still get a notification, and
 
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        # have the branch locked at notification time.
 
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        self.assertEqual([
 
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            ('post_uncommit', tree.branch.base, master.base, 1, revid,
 
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             0, None, True, True)
 
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            ],
 
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            self.hook_calls)
 
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    def test_post_uncommit_not_to_origin(self):
 
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        tree = self.make_branch_and_memory_tree('branch')
 
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        tree.lock_write()
 
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        tree.add('')
 
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        revid = tree.commit('first revision')
 
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        revid2 = tree.commit('second revision')
 
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        revid3 = tree.commit('third revision')
 
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        tree.unlock()
 
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        Branch.hooks.install_hook('post_uncommit',
 
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            self.capture_post_uncommit_hook)
 
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        uncommit(tree.branch, revno=2)
 
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        # having uncommitted from up the branch, we should get the
 
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        # before and after revnos and revids correctly.
 
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        self.assertEqual([
 
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            ('post_uncommit', None, tree.branch.base, 3, revid3,
 
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             1, revid, None, True)
 
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            ],
 
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            self.hook_calls)
 
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