← Back to branch summary

~bzr-pqm/bzr/bzr.dev

« back to all changes in this revision

Viewing changes to bzrlib/tests/test_memorytree.py

Exclude more files from dumb-rsync upload

Show diffs side-by-side

added added

removed removed

Lines of Context:
bzrlib/tests/test_memorytree.py
1
 
# Copyright (C) 2006 Canonical Ltd
2
 
# Authors:  Robert Collins <robert.collins@canonical.com>
3
 
#
4
 
# This program is free software; you can redistribute it and/or modify
5
 
# it under the terms of the GNU General Public License as published by
6
 
# the Free Software Foundation; either version 2 of the License, or
7
 
# (at your option) any later version.
8
 
#
9
 
# This program is distributed in the hope that it will be useful,
10
 
# but WITHOUT ANY WARRANTY; without even the implied warranty of
11
 
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12
 
# GNU General Public License for more details.
13
 
#
14
 
# You should have received a copy of the GNU General Public License
15
 
# along with this program; if not, write to the Free Software
16
 
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
17
 
 
18
 
"""Tests for the MemoryTree class."""
19
 
 
20
 
from bzrlib import errors
21
 
from bzrlib.memorytree import MemoryTree
22
 
from bzrlib.tests import TestCaseWithTransport
23
 
from bzrlib.treebuilder import TreeBuilder
24
 
 
25
 
 
26
 
class TestMemoryTree(TestCaseWithTransport):
27
 
    
28
 
    def test_create_on_branch(self):
29
 
        """Creating a mutable tree on a trivial branch works."""
30
 
        branch = self.make_branch('branch')
31
 
        tree = MemoryTree.create_on_branch(branch)
32
 
        self.assertEqual(branch.bzrdir, tree.bzrdir)
33
 
        self.assertEqual(branch, tree.branch)
34
 
        self.assertEqual([], tree.get_parent_ids())
35
 
    
36
 
    def test_create_on_branch_with_content(self):
37
 
        """Creating a mutable tree on a non-trivial branch works."""
38
 
        branch = self.make_branch('branch')
39
 
        tree = MemoryTree.create_on_branch(branch)
40
 
        # build some content
41
 
        tree.lock_write()
42
 
        builder = TreeBuilder()
43
 
        builder.start_tree(tree)
44
 
        builder.build(['foo'])
45
 
        builder.finish_tree()
46
 
        rev_id = tree.commit('first post')
47
 
        tree.unlock()
48
 
        tree = MemoryTree.create_on_branch(branch)
49
 
        tree.lock_read()
50
 
        self.assertEqual([rev_id], tree.get_parent_ids())
51
 
        self.assertEqual('contents of foo\n',
52
 
            tree.get_file(tree.path2id('foo')).read())
53
 
        tree.unlock()
54
 
 
55
 
    def test_lock_tree_write(self):
56
 
        """Check we can lock_tree_write and unlock MemoryTrees."""
57
 
        branch = self.make_branch('branch')
58
 
        tree = MemoryTree.create_on_branch(branch)
59
 
        tree.lock_tree_write()
60
 
        tree.unlock()
61
 
 
62
 
    def test_lock_tree_write_after_read_fails(self):
63
 
        """Check that we error when trying to upgrade a read lock to write."""
64
 
        branch = self.make_branch('branch')
65
 
        tree = MemoryTree.create_on_branch(branch)
66
 
        tree.lock_read()
67
 
        self.assertRaises(errors.ReadOnlyError, tree.lock_tree_write)
68
 
        tree.unlock()
69
 
 
70
 
    def test_lock_write(self):
71
 
        """Check we can lock_write and unlock MemoryTrees."""
72
 
        branch = self.make_branch('branch')
73
 
        tree = MemoryTree.create_on_branch(branch)
74
 
        tree.lock_write()
75
 
        tree.unlock()
76
 
 
77
 
    def test_lock_write_after_read_fails(self):
78
 
        """Check that we error when trying to upgrade a read lock to write."""
79
 
        branch = self.make_branch('branch')
80
 
        tree = MemoryTree.create_on_branch(branch)
81
 
        tree.lock_read()
82
 
        self.assertRaises(errors.ReadOnlyError, tree.lock_write)
83
 
        tree.unlock()
84
 
 
85
 
    def test_add_with_kind(self):
86
 
        branch = self.make_branch('branch')
87
 
        tree = MemoryTree.create_on_branch(branch)
88
 
        tree.lock_write()
89
 
        tree.add(['', 'afile', 'adir'], None, 
90
 
                 ['directory', 'file', 'directory'])
91
 
        self.assertEqual('afile', tree.id2path(tree.path2id('afile')))
92
 
        self.assertEqual('adir', tree.id2path(tree.path2id('adir')))
93
 
        self.assertFalse(tree.has_filename('afile'))
94
 
        self.assertFalse(tree.has_filename('adir'))
95
 
        tree.unlock()
96
 
 
97
 
    def test_put_new_file(self):
98
 
        branch = self.make_branch('branch')
99
 
        tree = MemoryTree.create_on_branch(branch)
100
 
        tree.lock_write()
101
 
        tree.add(['', 'foo'], ids=['root-id', 'foo-id'], 
102
 
                  kinds=['directory', 'file'])
103
 
        tree.put_file_bytes_non_atomic('foo-id', 'barshoom')
104
 
        self.assertEqual('barshoom', tree.get_file('foo-id').read())
105
 
        tree.unlock()
106
 
 
107
 
    def test_put_existing_file(self):
108
 
        branch = self.make_branch('branch')
109
 
        tree = MemoryTree.create_on_branch(branch)
110
 
        tree.lock_write()
111
 
        tree.add(['', 'foo'], ids=['root-id', 'foo-id'], 
112
 
                 kinds=['directory', 'file'])
113
 
        tree.put_file_bytes_non_atomic('foo-id', 'first-content')
114
 
        tree.put_file_bytes_non_atomic('foo-id', 'barshoom')
115
 
        self.assertEqual('barshoom', tree.get_file('foo-id').read())
116
 
        tree.unlock()
117
 
 
118
 
    def test_commit_trivial(self):
119
 
        """Smoke test for commit on a MemoryTree.
120
 
 
121
 
        Becamse of commits design and layering, if this works, all commit
122
 
        logic should work quite reliably.
123
 
        """
124
 
        branch = self.make_branch('branch')
125
 
        tree = MemoryTree.create_on_branch(branch)
126
 
        tree.lock_write()
127
 
        tree.add(['', 'foo'], ids=['root-id', 'foo-id'], 
128
 
                 kinds=['directory', 'file'])
129
 
        tree.put_file_bytes_non_atomic('foo-id', 'barshoom')
130
 
        revision_id = tree.commit('message baby')
131
 
        # the parents list for the tree should have changed.
132
 
        self.assertEqual([revision_id], tree.get_parent_ids())
133
 
        tree.unlock()
134
 
        # and we should have a revision that is accessible outside the tree lock
135
 
        revtree = tree.branch.repository.revision_tree(revision_id)
136
 
        self.assertEqual('barshoom', revtree.get_file('foo-id').read())
137
 
 
138
 
    def test_unversion(self):
139
 
        """Some test for unversion of a memory tree."""
140
 
        branch = self.make_branch('branch')
141
 
        tree = MemoryTree.create_on_branch(branch)
142
 
        tree.lock_write()
143
 
        tree.add(['', 'foo'], ids=['root-id', 'foo-id'], 
144
 
                 kinds=['directory', 'file'])
145
 
        tree.unversion(['foo-id'])
146
 
        self.assertFalse(tree.has_id('foo-id'))
147
 
        tree.unlock()
148
 
 
149
 
    def test_last_revision(self):
150
 
        """There should be a last revision method we can call."""
151
 
        tree = self.make_branch_and_memory_tree('branch')
152
 
        tree.lock_write()
153
 
        tree.add('')
154
 
        rev_id = tree.commit('first post')
155
 
        tree.unlock()
156
 
        self.assertEqual(rev_id, tree.last_revision())