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Viewing changes to bzrlib/tests/per_workingtree/test_check_state.py

(vila) Fix bzrlib.tests.test_gpg.TestVerify.test_verify_revoked_signature
 with recent versions of gpg. (Vincent Ladeuil)

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bzrlib/tests/per_workingtree/test_check_state.py
 
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# Copyright (C) 2011 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
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"""Tests for WorkingTree.check_state."""
 
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from bzrlib import (
 
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    errors,
 
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    tests,
 
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    )
 
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from bzrlib.tests.per_workingtree import TestCaseWithWorkingTree
 
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class TestCaseWithState(TestCaseWithWorkingTree):
 
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    def make_tree_with_broken_dirstate(self, path):
 
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        tree = self.make_branch_and_tree(path)
 
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        self.break_dirstate(tree)
 
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        return tree
 
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    def break_dirstate(self, tree, completely=False):
 
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        """Write garbage into the dirstate file."""
 
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        if getattr(tree, 'current_dirstate', None) is None:
 
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            raise tests.TestNotApplicable(
 
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                'Only applies to dirstate-based trees')
 
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        tree.lock_read()
 
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        try:
 
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            dirstate = tree.current_dirstate()
 
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            dirstate_path = dirstate._filename
 
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            self.assertPathExists(dirstate_path)
 
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        finally:
 
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            tree.unlock()
 
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        # We have to have the tree unlocked at this point, so we can safely
 
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        # mutate the state file on all platforms.
 
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        if completely:
 
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            f = open(dirstate_path, 'wb')
 
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        else:
 
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            f = open(dirstate_path, 'ab')
 
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        try:
 
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            f.write('garbage-at-end-of-file\n')
 
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        finally:
 
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            f.close()
 
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class TestCheckState(TestCaseWithState):
 
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    def test_check_state(self):
 
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        tree = self.make_branch_and_tree('tree')
 
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        # Everything should be fine with an unmodified tree, no exception
 
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        # should be raised.
 
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        tree.check_state()
 
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    def test_check_broken_dirstate(self):
 
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        tree = self.make_tree_with_broken_dirstate('tree')
 
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        self.assertRaises(errors.BzrError, tree.check_state)
 
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class TestResetState(TestCaseWithState):
 
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    def make_initial_tree(self):
 
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        tree = self.make_branch_and_tree('tree')
 
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        self.build_tree(['tree/foo', 'tree/dir/', 'tree/dir/bar'])
 
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        tree.add(['foo', 'dir', 'dir/bar'])
 
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        tree.commit('initial')
 
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        return tree
 
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    def test_reset_state_forgets_changes(self):
 
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        tree = self.make_initial_tree()
 
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        foo_id = tree.path2id('foo')
 
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        tree.rename_one('foo', 'baz')
 
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        self.assertEqual(None, tree.path2id('foo'))
 
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        self.assertEqual(foo_id, tree.path2id('baz'))
 
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        tree.reset_state()
 
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        # After reset, we should have forgotten about the rename, but we won't
 
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        # have
 
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        self.assertEqual(foo_id, tree.path2id('foo'))
 
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        self.assertEqual(None, tree.path2id('baz'))
 
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        self.assertPathDoesNotExist('tree/foo')
 
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        self.assertPathExists('tree/baz')
 
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    def test_reset_state_handles_corrupted_dirstate(self):
 
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        tree = self.make_initial_tree()
 
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        rev_id = tree.last_revision()
 
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        self.break_dirstate(tree)
 
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        tree.reset_state()
 
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        tree.check_state()
 
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        self.assertEqual(rev_id, tree.last_revision())
 
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    def test_reset_state_handles_destroyed_dirstate(self):
 
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        # If you pass the revision_id, we can handle a completely destroyed
 
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        # dirstate file.
 
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        tree = self.make_initial_tree()
 
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        rev_id = tree.last_revision()
 
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        self.break_dirstate(tree, completely=True)
 
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        tree.reset_state(revision_ids=[rev_id])
 
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        tree.check_state()
 
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        self.assertEqual(rev_id, tree.last_revision())