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  • Committer: Jelmer Vernooij
  • Date: 2018-05-19 13:16:11 UTC
  • mto: (6968.4.3 git-archive)
  • mto: This revision was merged to the branch mainline in revision 6972.
  • Revision ID: jelmer@jelmer.uk-20180519131611-l9h9ud41j7qg1m03
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breezy/tests/test_treebuilder.py
 
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# Copyright (C) 2006 Canonical Ltd
 
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# Authors:  Robert Collins <robert.collins@canonical.com>
 
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
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"""Tests for the TreeBuilder helper class."""
 
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from breezy import errors, tests
 
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from breezy.memorytree import MemoryTree
 
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from breezy.tests import TestCaseWithTransport
 
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from breezy.treebuilder import (
 
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    AlreadyBuilding,
 
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    NotBuilding,
 
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    TreeBuilder,
 
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    )
 
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class FakeTree(object):
 
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    """A pretend tree to test the calls made by TreeBuilder."""
 
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    def __init__(self):
 
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        self._calls = []
 
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    def lock_tree_write(self):
 
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        self._calls.append("lock_tree_write")
 
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    def unlock(self):
 
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        self._calls.append("unlock")
 
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class TestFakeTree(TestCaseWithTransport):
 
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    def testFakeTree(self):
 
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        """Check that FakeTree works as required for the TreeBuilder tests."""
 
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        tree = FakeTree()
 
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        self.assertEqual([], tree._calls)
 
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        tree.lock_tree_write()
 
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        self.assertEqual(["lock_tree_write"], tree._calls)
 
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        tree.unlock()
 
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        self.assertEqual(["lock_tree_write", "unlock"], tree._calls)
 
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class TestTreeBuilderMemoryTree(tests.TestCaseWithMemoryTransport):
 
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    def test_create(self):
 
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        builder = TreeBuilder()
 
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    def test_start_tree_locks_write(self):
 
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        builder = TreeBuilder()
 
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        tree = FakeTree()
 
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        builder.start_tree(tree)
 
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        self.assertEqual(["lock_tree_write"], tree._calls)
 
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    def test_start_tree_when_started_fails(self):
 
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        builder = TreeBuilder()
 
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        tree = FakeTree()
 
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        builder.start_tree(tree)
 
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        self.assertRaises(AlreadyBuilding, builder.start_tree, tree)
 
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    def test_finish_tree_not_started_errors(self):
 
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        builder = TreeBuilder()
 
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        self.assertRaises(NotBuilding, builder.finish_tree)
 
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    def test_finish_tree_unlocks(self):
 
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        builder = TreeBuilder()
 
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        tree = FakeTree()
 
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        builder.start_tree(tree)
 
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        builder.finish_tree()
 
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        self.assertEqual(["lock_tree_write", "unlock"], tree._calls)
 
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    def test_build_tree_not_started_errors(self):
 
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        builder = TreeBuilder()
 
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        self.assertRaises(NotBuilding, builder.build, "foo")
 
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    def test_build_tree(self):
 
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        """Test building works using a MemoryTree."""
 
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        branch = self.make_branch('branch')
 
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        tree = MemoryTree.create_on_branch(branch)
 
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        builder = TreeBuilder()
 
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        builder.start_tree(tree)
 
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        builder.build(['foo', "bar/", "bar/file"])
 
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        self.assertEqual(
 
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            'contents of foo\n',
 
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            tree.get_file('foo').read())
 
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        self.assertEqual(
 
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            'contents of bar/file\n',
 
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            tree.get_file('bar/file').read())
 
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        builder.finish_tree()
 
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