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  • Committer: Aaron Bentley
  • Date: 2005-09-20 15:02:04 UTC
  • Revision ID: abentley@panoramicfeedback.com-20050920150204-2abd154eca9213bc
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tests/test_link_tree.py
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# Copyright (C) 2008 Aaron Bentley
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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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import os
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from bzrlib.transform import TreeTransform
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from bzrlib.tests import TestCaseWithTransport, HardlinkFeature
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from bzrlib.plugins.bzrtools.link_tree import link_tree
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class TestLinkTreeBase(object):
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    _test_needs_features = [HardlinkFeature]
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    def setUp(self):
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        TestCaseWithTransport.setUp(self)
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        self.parent_tree = self.make_branch_and_tree('parent')
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        self.parent_tree.lock_write()
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        self.addCleanup(self.parent_tree.unlock)
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        self.build_tree_contents([('parent/foo', 'bar')])
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        self.parent_tree.add('foo', 'foo-id')
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        self.parent_tree.commit('added foo')
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        child_bzrdir = self.parent_tree.bzrdir.sprout('child')
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        self.child_tree = child_bzrdir.open_workingtree()
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    def hardlinked(self):
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        parent_stat = os.lstat(self.parent_tree.abspath('foo'))
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        child_stat = os.lstat(self.child_tree.abspath('foo'))
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        return parent_stat.st_ino == child_stat.st_ino
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class TestLinkTree(TestLinkTreeBase, TestCaseWithTransport):
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    def test_link_fails_if_modified(self):
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        """If the file to be linked has modified text, don't link."""
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        self.build_tree_contents([('child/foo', 'baz')])
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        link_tree(self.child_tree, self.parent_tree)
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        self.assertFalse(self.hardlinked())
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    def test_link_fails_if_execute_bit_changed(self):
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        """If the file to be linked has modified execute bit, don't link."""
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        tt = TreeTransform(self.child_tree)
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        try:
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            trans_id = tt.trans_id_tree_file_id('foo-id')
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            tt.set_executability(True, trans_id)
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            tt.apply()
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        finally:
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            tt.finalize()
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        link_tree(self.child_tree, self.parent_tree)
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        self.assertFalse(self.hardlinked())
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    def test_link_succeeds_if_unmodified(self):
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        """If the file to be linked is unmodified, link"""
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        link_tree(self.child_tree, self.parent_tree)
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        self.assertTrue(self.hardlinked())
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class TestLinkTreeCommand(TestLinkTreeBase, TestCaseWithTransport):
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    def test_link_tree(self):
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        """Ensure the command works as intended"""
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        os.chdir('child')
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        self.parent_tree.unlock()
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        self.run_bzr('link-tree ../parent')
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        self.assertTrue(self.hardlinked())
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        # want teh addCleanup to work properly
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        self.parent_tree.lock_write()