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Viewing changes to breezy/git/tests/test_object_store.py

  • Committer: Jelmer Vernooij
  • Date: 2018-11-06 01:18:08 UTC
  • mfrom: (7143 work)
  • mto: This revision was merged to the branch mainline in revision 7151.
  • Revision ID: jelmer@jelmer.uk-20181106011808-y870f4vq0ork3ahu
Merge trunk.

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breezy/git/tests/test_object_store.py
 
1
# Copyright (C) 2010-2018 Jelmer Vernooij <jelmer@jelmer.uk>
 
2
#
 
3
# This program is free software; you can redistribute it and/or modify
 
4
# it under the terms of the GNU General Public License as published by
 
5
# the Free Software Foundation; either version 2 of the License, or
 
6
# (at your option) any later version.
 
7
#
 
8
# This program is distributed in the hope that it will be useful,
 
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
11
# GNU General Public License for more details.
 
12
#
 
13
# You should have received a copy of the GNU General Public License
 
14
# along with this program; if not, write to the Free Software
 
15
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
16
 
 
17
"""Tests for bzr-git's object store."""
 
18
 
 
19
from __future__ import absolute_import
 
20
 
 
21
from dulwich.objects import (
 
22
    Blob,
 
23
    Tree,
 
24
    )
 
25
 
 
26
from ...branchbuilder import (
 
27
    BranchBuilder,
 
28
    )
 
29
from ...bzr.inventory import (
 
30
    InventoryDirectory,
 
31
    InventoryFile,
 
32
    )
 
33
from ...errors import (
 
34
    NoSuchRevision,
 
35
    )
 
36
from ...graph import (
 
37
    DictParentsProvider,
 
38
    Graph,
 
39
    )
 
40
from ...tests import (
 
41
    TestCase,
 
42
    TestCaseWithTransport,
 
43
    )
 
44
 
 
45
from ..cache import (
 
46
    DictGitShaMap,
 
47
    )
 
48
from ..object_store import (
 
49
    BazaarObjectStore,
 
50
    LRUTreeCache,
 
51
    directory_to_tree,
 
52
    _check_expected_sha,
 
53
    _find_missing_bzr_revids,
 
54
    _tree_to_objects,
 
55
    )
 
56
 
 
57
 
 
58
class ExpectedShaTests(TestCase):
 
59
 
 
60
    def setUp(self):
 
61
        super(ExpectedShaTests, self).setUp()
 
62
        self.obj = Blob()
 
63
        self.obj.data = b"foo"
 
64
 
 
65
    def test_none(self):
 
66
        _check_expected_sha(None, self.obj)
 
67
 
 
68
    def test_hex(self):
 
69
        _check_expected_sha(
 
70
                self.obj.sha().hexdigest().encode('ascii'), self.obj)
 
71
        self.assertRaises(AssertionError, _check_expected_sha,
 
72
            b"0" * 40, self.obj)
 
73
 
 
74
    def test_binary(self):
 
75
        _check_expected_sha(self.obj.sha().digest(), self.obj)
 
76
        self.assertRaises(AssertionError, _check_expected_sha,
 
77
            b"x" * 20, self.obj)
 
78
 
 
79
 
 
80
class FindMissingBzrRevidsTests(TestCase):
 
81
 
 
82
    def _find_missing(self, ancestry, want, have):
 
83
        return _find_missing_bzr_revids(
 
84
            Graph(DictParentsProvider(ancestry)),
 
85
            set(want), set(have))
 
86
 
 
87
    def test_simple(self):
 
88
        self.assertEqual(set(), self._find_missing({}, [], []))
 
89
 
 
90
    def test_up_to_date(self):
 
91
        self.assertEqual(set(),
 
92
                self._find_missing({"a": ["b"]}, ["a"], ["a"]))
 
93
 
 
94
    def test_one_missing(self):
 
95
        self.assertEqual(set(["a"]),
 
96
                self._find_missing({"a": ["b"]}, ["a"], ["b"]))
 
97
 
 
98
    def test_two_missing(self):
 
99
        self.assertEqual(set(["a", "b"]),
 
100
                self._find_missing({"a": ["b"], "b": ["c"]}, ["a"], ["c"]))
 
101
 
 
102
    def test_two_missing_history(self):
 
103
        self.assertEqual(set(["a", "b"]),
 
104
                self._find_missing({"a": ["b"], "b": ["c"], "c": ["d"]},
 
105
                    ["a"], ["c"]))
 
106
 
 
107
 
 
108
class LRUTreeCacheTests(TestCaseWithTransport):
 
109
 
 
110
    def setUp(self):
 
111
        super(LRUTreeCacheTests, self).setUp()
 
112
        self.branch = self.make_branch(".")
 
113
        self.branch.lock_write()
 
114
        self.addCleanup(self.branch.unlock)
 
115
        self.cache = LRUTreeCache(self.branch.repository)
 
116
 
 
117
    def test_get_not_present(self):
 
118
        self.assertRaises(NoSuchRevision, self.cache.revision_tree,
 
119
                "unknown")
 
120
 
 
121
    def test_revision_trees(self):
 
122
        self.assertRaises(NoSuchRevision, self.cache.revision_trees,
 
123
                ["unknown", "la"])
 
124
 
 
125
    def test_iter_revision_trees(self):
 
126
        self.assertRaises(NoSuchRevision, self.cache.iter_revision_trees,
 
127
                ["unknown", "la"])
 
128
 
 
129
    def test_get(self):
 
130
        bb = BranchBuilder(branch=self.branch)
 
131
        bb.start_series()
 
132
        revid = bb.build_snapshot(None,
 
133
            [('add', ('', None, 'directory', None)),
 
134
             ('add', ('foo', b'foo-id', 'file', b'a\nb\nc\nd\ne\n')),
 
135
             ])
 
136
        bb.finish_series()
 
137
        tree = self.cache.revision_tree(revid)
 
138
        self.assertEqual(revid, tree.get_revision_id())
 
139
 
 
140
 
 
141
class BazaarObjectStoreTests(TestCaseWithTransport):
 
142
 
 
143
    def setUp(self):
 
144
        super(BazaarObjectStoreTests, self).setUp()
 
145
        self.branch = self.make_branch(".")
 
146
        self.branch.lock_write()
 
147
        self.addCleanup(self.branch.unlock)
 
148
        self.store = BazaarObjectStore(self.branch.repository)
 
149
 
 
150
    def test_get_blob(self):
 
151
        b = Blob()
 
152
        b.data = b'a\nb\nc\nd\ne\n'
 
153
        self.store.lock_read()
 
154
        self.addCleanup(self.store.unlock)
 
155
        self.assertRaises(KeyError, self.store.__getitem__, b.id)
 
156
        bb = BranchBuilder(branch=self.branch)
 
157
        bb.start_series()
 
158
        bb.build_snapshot(None,
 
159
            [('add', ('', None, 'directory', None)),
 
160
             ('add', ('foo', b'foo-id', 'file', b'a\nb\nc\nd\ne\n')),
 
161
             ])
 
162
        bb.finish_series()
 
163
        # read locks cache
 
164
        self.assertRaises(KeyError, self.store.__getitem__, b.id)
 
165
        self.store.unlock()
 
166
        self.store.lock_read()
 
167
        self.assertEqual(b, self.store[b.id])
 
168
 
 
169
    def test_get_raw(self):
 
170
        b = Blob()
 
171
        b.data = b'a\nb\nc\nd\ne\n'
 
172
        self.store.lock_read()
 
173
        self.addCleanup(self.store.unlock)
 
174
        self.assertRaises(KeyError, self.store.get_raw, b.id)
 
175
        bb = BranchBuilder(branch=self.branch)
 
176
        bb.start_series()
 
177
        bb.build_snapshot(None,
 
178
            [('add', ('', None, 'directory', None)),
 
179
             ('add', ('foo', b'foo-id', 'file', b'a\nb\nc\nd\ne\n')),
 
180
             ])
 
181
        bb.finish_series()
 
182
        # read locks cache
 
183
        self.assertRaises(KeyError, self.store.get_raw, b.id)
 
184
        self.store.unlock()
 
185
        self.store.lock_read()
 
186
        self.assertEqual(b.as_raw_string(), self.store.get_raw(b.id)[1])
 
187
 
 
188
    def test_contains(self):
 
189
        b = Blob()
 
190
        b.data = b'a\nb\nc\nd\ne\n'
 
191
        self.store.lock_read()
 
192
        self.addCleanup(self.store.unlock)
 
193
        self.assertFalse(b.id in self.store)
 
194
        bb = BranchBuilder(branch=self.branch)
 
195
        bb.start_series()
 
196
        bb.build_snapshot(None,
 
197
            [('add', ('', None, 'directory', None)),
 
198
             ('add', ('foo', b'foo-id', 'file', b'a\nb\nc\nd\ne\n')),
 
199
             ])
 
200
        bb.finish_series()
 
201
        # read locks cache
 
202
        self.assertFalse(b.id in self.store)
 
203
        self.store.unlock()
 
204
        self.store.lock_read()
 
205
        self.assertTrue(b.id in self.store)
 
206
 
 
207
 
 
208
class TreeToObjectsTests(TestCaseWithTransport):
 
209
 
 
210
    def setUp(self):
 
211
        super(TreeToObjectsTests, self).setUp()
 
212
        self.idmap = DictGitShaMap()
 
213
 
 
214
    def test_no_changes(self):
 
215
        tree = self.make_branch_and_tree('.')
 
216
        self.addCleanup(tree.lock_read().unlock)
 
217
        entries = list(_tree_to_objects(tree, [tree], self.idmap, {}))
 
218
        self.assertEqual([], entries)
 
219
 
 
220
    def test_with_gitdir(self):
 
221
        tree = self.make_branch_and_tree('.')
 
222
        self.build_tree(['.git', 'foo'])
 
223
        tree.add(['.git', 'foo'])
 
224
        revid = tree.commit('commit')
 
225
        revtree = tree.branch.repository.revision_tree(revid)
 
226
        self.addCleanup(revtree.lock_read().unlock)
 
227
        entries = list(_tree_to_objects(revtree, [], self.idmap, {}))
 
228
        self.assertEqual(['foo', ''], [p[0] for p in entries])
 
229
 
 
230
 
 
231
class DirectoryToTreeTests(TestCase):
 
232
 
 
233
    def test_empty(self):
 
234
        t = directory_to_tree('', [], None, {}, None, allow_empty=False)
 
235
        self.assertEqual(None, t)
 
236
 
 
237
    def test_empty_dir(self):
 
238
        child_ie = InventoryDirectory(b'bar', 'bar', b'bar')
 
239
        t = directory_to_tree('', [child_ie], lambda p, x: None, {}, None,
 
240
                allow_empty=False)
 
241
        self.assertEqual(None, t)
 
242
 
 
243
    def test_empty_dir_dummy_files(self):
 
244
        child_ie = InventoryDirectory(b'bar', 'bar', b'bar')
 
245
        t = directory_to_tree('', [child_ie], lambda p, x: None, {}, ".mydummy",
 
246
                allow_empty=False)
 
247
        self.assertTrue(".mydummy" in t)
 
248
 
 
249
    def test_empty_root(self):
 
250
        child_ie = InventoryDirectory(b'bar', 'bar', b'bar')
 
251
        t = directory_to_tree('', [child_ie], lambda p, x: None, {}, None,
 
252
                allow_empty=True)
 
253
        self.assertEqual(Tree(), t)
 
254
 
 
255
    def test_with_file(self):
 
256
        child_ie = InventoryFile(b'bar', 'bar', b'bar')
 
257
        b = Blob.from_string(b"bla")
 
258
        t1 = directory_to_tree('', [child_ie], lambda p, x: b.id, {}, None,
 
259
                allow_empty=False)
 
260
        t2 = Tree()
 
261
        t2.add(b"bar", 0o100644, b.id)
 
262
        self.assertEqual(t1, t2)
 
263
 
 
264
    def test_with_gitdir(self):
 
265
        child_ie = InventoryFile(b'bar', 'bar', b'bar')
 
266
        git_file_ie = InventoryFile(b'gitid', '.git', b'bar')
 
267
        b = Blob.from_string(b"bla")
 
268
        t1 = directory_to_tree('', [child_ie, git_file_ie],
 
269
                lambda p, x: b.id, {}, None,
 
270
                allow_empty=False)
 
271
        t2 = Tree()
 
272
        t2.add(b"bar", 0o100644, b.id)
 
273
        self.assertEqual(t1, t2)