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Viewing changes to bzrlib/tests/test__chk_map.py

  • Committer: Canonical.com Patch Queue Manager
  • Date: 2010-09-29 22:03:03 UTC
  • mfrom: (5416.2.6 jam-integration)
  • Revision ID: pqm@pqm.ubuntu.com-20100929220303-cr95h8iwtggco721
(mbp) Add 'break-lock --force'

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bzrlib/tests/test__chk_map.py
 
1
# Copyright (C) 2009, 2010 Canonical Ltd
 
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 _chk_map_*."""
 
18
 
 
19
from bzrlib import (
 
20
    chk_map,
 
21
    inventory,
 
22
    tests,
 
23
    )
 
24
from bzrlib.static_tuple import StaticTuple
 
25
stuple = StaticTuple
 
26
 
 
27
 
 
28
def load_tests(standard_tests, module, loader):
 
29
    suite, _ = tests.permute_tests_for_extension(standard_tests, loader,
 
30
        'bzrlib._chk_map_py', 'bzrlib._chk_map_pyx')
 
31
    return suite
 
32
 
 
33
 
 
34
class TestSearchKeys(tests.TestCase):
 
35
 
 
36
    module = None # Filled in by test parameterization
 
37
 
 
38
    def assertSearchKey16(self, expected, key):
 
39
        self.assertEqual(expected, self.module._search_key_16(key))
 
40
 
 
41
    def assertSearchKey255(self, expected, key):
 
42
        actual = self.module._search_key_255(key)
 
43
        self.assertEqual(expected, actual, 'actual: %r' % (actual,))
 
44
 
 
45
    def test_simple_16(self):
 
46
        self.assertSearchKey16('8C736521', stuple('foo',))
 
47
        self.assertSearchKey16('8C736521\x008C736521', stuple('foo', 'foo'))
 
48
        self.assertSearchKey16('8C736521\x0076FF8CAA', stuple('foo', 'bar'))
 
49
        self.assertSearchKey16('ED82CD11', stuple('abcd',))
 
50
 
 
51
    def test_simple_255(self):
 
52
        self.assertSearchKey255('\x8cse!', stuple('foo',))
 
53
        self.assertSearchKey255('\x8cse!\x00\x8cse!', stuple('foo', 'foo'))
 
54
        self.assertSearchKey255('\x8cse!\x00v\xff\x8c\xaa', stuple('foo', 'bar'))
 
55
        # The standard mapping for these would include '\n', so it should be
 
56
        # mapped to '_'
 
57
        self.assertSearchKey255('\xfdm\x93_\x00P_\x1bL', stuple('<', 'V'))
 
58
 
 
59
    def test_255_does_not_include_newline(self):
 
60
        # When mapping via _search_key_255, we should never have the '\n'
 
61
        # character, but all other 255 values should be present
 
62
        chars_used = set()
 
63
        for char_in in range(256):
 
64
            search_key = self.module._search_key_255(stuple(chr(char_in),))
 
65
            chars_used.update(search_key)
 
66
        all_chars = set([chr(x) for x in range(256)])
 
67
        unused_chars = all_chars.symmetric_difference(chars_used)
 
68
        self.assertEqual(set('\n'), unused_chars)
 
69
 
 
70
 
 
71
class TestDeserialiseLeafNode(tests.TestCase):
 
72
 
 
73
    module = None
 
74
 
 
75
    def assertDeserialiseErrors(self, text):
 
76
        self.assertRaises((ValueError, IndexError),
 
77
            self.module._deserialise_leaf_node, text, 'not-a-real-sha')
 
78
 
 
79
    def test_raises_on_non_leaf(self):
 
80
        self.assertDeserialiseErrors('')
 
81
        self.assertDeserialiseErrors('short\n')
 
82
        self.assertDeserialiseErrors('chknotleaf:\n')
 
83
        self.assertDeserialiseErrors('chkleaf:x\n')
 
84
        self.assertDeserialiseErrors('chkleaf:\n')
 
85
        self.assertDeserialiseErrors('chkleaf:\nnotint\n')
 
86
        self.assertDeserialiseErrors('chkleaf:\n10\n')
 
87
        self.assertDeserialiseErrors('chkleaf:\n10\n256\n')
 
88
        self.assertDeserialiseErrors('chkleaf:\n10\n256\n10\n')
 
89
 
 
90
    def test_deserialise_empty(self):
 
91
        node = self.module._deserialise_leaf_node(
 
92
            "chkleaf:\n10\n1\n0\n\n", stuple("sha1:1234",))
 
93
        self.assertEqual(0, len(node))
 
94
        self.assertEqual(10, node.maximum_size)
 
95
        self.assertEqual(("sha1:1234",), node.key())
 
96
        self.assertIsInstance(node.key(), StaticTuple)
 
97
        self.assertIs(None, node._search_prefix)
 
98
        self.assertIs(None, node._common_serialised_prefix)
 
99
 
 
100
    def test_deserialise_items(self):
 
101
        node = self.module._deserialise_leaf_node(
 
102
            "chkleaf:\n0\n1\n2\n\nfoo bar\x001\nbaz\nquux\x001\nblarh\n",
 
103
            ("sha1:1234",))
 
104
        self.assertEqual(2, len(node))
 
105
        self.assertEqual([(("foo bar",), "baz"), (("quux",), "blarh")],
 
106
            sorted(node.iteritems(None)))
 
107
 
 
108
    def test_deserialise_item_with_null_width_1(self):
 
109
        node = self.module._deserialise_leaf_node(
 
110
            "chkleaf:\n0\n1\n2\n\nfoo\x001\nbar\x00baz\nquux\x001\nblarh\n",
 
111
            ("sha1:1234",))
 
112
        self.assertEqual(2, len(node))
 
113
        self.assertEqual([(("foo",), "bar\x00baz"), (("quux",), "blarh")],
 
114
            sorted(node.iteritems(None)))
 
115
 
 
116
    def test_deserialise_item_with_null_width_2(self):
 
117
        node = self.module._deserialise_leaf_node(
 
118
            "chkleaf:\n0\n2\n2\n\nfoo\x001\x001\nbar\x00baz\n"
 
119
            "quux\x00\x001\nblarh\n",
 
120
            ("sha1:1234",))
 
121
        self.assertEqual(2, len(node))
 
122
        self.assertEqual([(("foo", "1"), "bar\x00baz"), (("quux", ""), "blarh")],
 
123
            sorted(node.iteritems(None)))
 
124
 
 
125
    def test_iteritems_selected_one_of_two_items(self):
 
126
        node = self.module._deserialise_leaf_node(
 
127
            "chkleaf:\n0\n1\n2\n\nfoo bar\x001\nbaz\nquux\x001\nblarh\n",
 
128
            ("sha1:1234",))
 
129
        self.assertEqual(2, len(node))
 
130
        self.assertEqual([(("quux",), "blarh")],
 
131
            sorted(node.iteritems(None, [("quux",), ("qaz",)])))
 
132
 
 
133
    def test_deserialise_item_with_common_prefix(self):
 
134
        node = self.module._deserialise_leaf_node(
 
135
            "chkleaf:\n0\n2\n2\nfoo\x00\n1\x001\nbar\x00baz\n2\x001\nblarh\n",
 
136
            ("sha1:1234",))
 
137
        self.assertEqual(2, len(node))
 
138
        self.assertEqual([(("foo", "1"), "bar\x00baz"), (("foo", "2"), "blarh")],
 
139
            sorted(node.iteritems(None)))
 
140
        self.assertIs(chk_map._unknown, node._search_prefix)
 
141
        self.assertEqual('foo\x00', node._common_serialised_prefix)
 
142
 
 
143
    def test_deserialise_multi_line(self):
 
144
        node = self.module._deserialise_leaf_node(
 
145
            "chkleaf:\n0\n2\n2\nfoo\x00\n1\x002\nbar\nbaz\n2\x002\nblarh\n\n",
 
146
            ("sha1:1234",))
 
147
        self.assertEqual(2, len(node))
 
148
        self.assertEqual([(("foo", "1"), "bar\nbaz"),
 
149
                          (("foo", "2"), "blarh\n"),
 
150
                         ], sorted(node.iteritems(None)))
 
151
        self.assertIs(chk_map._unknown, node._search_prefix)
 
152
        self.assertEqual('foo\x00', node._common_serialised_prefix)
 
153
 
 
154
    def test_key_after_map(self):
 
155
        node = self.module._deserialise_leaf_node(
 
156
            "chkleaf:\n10\n1\n0\n\n", ("sha1:1234",))
 
157
        node.map(None, ("foo bar",), "baz quux")
 
158
        self.assertEqual(None, node.key())
 
159
 
 
160
    def test_key_after_unmap(self):
 
161
        node = self.module._deserialise_leaf_node(
 
162
            "chkleaf:\n0\n1\n2\n\nfoo bar\x001\nbaz\nquux\x001\nblarh\n",
 
163
            ("sha1:1234",))
 
164
        node.unmap(None, ("foo bar",))
 
165
        self.assertEqual(None, node.key())
 
166
 
 
167
 
 
168
class TestDeserialiseInternalNode(tests.TestCase):
 
169
 
 
170
    module = None
 
171
 
 
172
    def assertDeserialiseErrors(self, text):
 
173
        self.assertRaises((ValueError, IndexError),
 
174
            self.module._deserialise_internal_node, text,
 
175
                stuple('not-a-real-sha',))
 
176
 
 
177
    def test_raises_on_non_internal(self):
 
178
        self.assertDeserialiseErrors('')
 
179
        self.assertDeserialiseErrors('short\n')
 
180
        self.assertDeserialiseErrors('chknotnode:\n')
 
181
        self.assertDeserialiseErrors('chknode:x\n')
 
182
        self.assertDeserialiseErrors('chknode:\n')
 
183
        self.assertDeserialiseErrors('chknode:\nnotint\n')
 
184
        self.assertDeserialiseErrors('chknode:\n10\n')
 
185
        self.assertDeserialiseErrors('chknode:\n10\n256\n')
 
186
        self.assertDeserialiseErrors('chknode:\n10\n256\n10\n')
 
187
        # no trailing newline
 
188
        self.assertDeserialiseErrors('chknode:\n10\n256\n0\n1\nfo')
 
189
 
 
190
    def test_deserialise_one(self):
 
191
        node = self.module._deserialise_internal_node(
 
192
            "chknode:\n10\n1\n1\n\na\x00sha1:abcd\n", stuple('sha1:1234',))
 
193
        self.assertIsInstance(node, chk_map.InternalNode)
 
194
        self.assertEqual(1, len(node))
 
195
        self.assertEqual(10, node.maximum_size)
 
196
        self.assertEqual(("sha1:1234",), node.key())
 
197
        self.assertEqual('', node._search_prefix)
 
198
        self.assertEqual({'a': ('sha1:abcd',)}, node._items)
 
199
 
 
200
    def test_deserialise_with_prefix(self):
 
201
        node = self.module._deserialise_internal_node(
 
202
            "chknode:\n10\n1\n1\npref\na\x00sha1:abcd\n", stuple('sha1:1234',))
 
203
        self.assertIsInstance(node, chk_map.InternalNode)
 
204
        self.assertEqual(1, len(node))
 
205
        self.assertEqual(10, node.maximum_size)
 
206
        self.assertEqual(("sha1:1234",), node.key())
 
207
        self.assertEqual('pref', node._search_prefix)
 
208
        self.assertEqual({'prefa': ('sha1:abcd',)}, node._items)
 
209
 
 
210
        node = self.module._deserialise_internal_node(
 
211
            "chknode:\n10\n1\n1\npref\n\x00sha1:abcd\n", stuple('sha1:1234',))
 
212
        self.assertIsInstance(node, chk_map.InternalNode)
 
213
        self.assertEqual(1, len(node))
 
214
        self.assertEqual(10, node.maximum_size)
 
215
        self.assertEqual(("sha1:1234",), node.key())
 
216
        self.assertEqual('pref', node._search_prefix)
 
217
        self.assertEqual({'pref': ('sha1:abcd',)}, node._items)
 
218
 
 
219
    def test_deserialise_pref_with_null(self):
 
220
        node = self.module._deserialise_internal_node(
 
221
            "chknode:\n10\n1\n1\npref\x00fo\n\x00sha1:abcd\n",
 
222
            stuple('sha1:1234',))
 
223
        self.assertIsInstance(node, chk_map.InternalNode)
 
224
        self.assertEqual(1, len(node))
 
225
        self.assertEqual(10, node.maximum_size)
 
226
        self.assertEqual(("sha1:1234",), node.key())
 
227
        self.assertEqual('pref\x00fo', node._search_prefix)
 
228
        self.assertEqual({'pref\x00fo': ('sha1:abcd',)}, node._items)
 
229
 
 
230
    def test_deserialise_with_null_pref(self):
 
231
        node = self.module._deserialise_internal_node(
 
232
            "chknode:\n10\n1\n1\npref\x00fo\n\x00\x00sha1:abcd\n",
 
233
            stuple('sha1:1234',))
 
234
        self.assertIsInstance(node, chk_map.InternalNode)
 
235
        self.assertEqual(1, len(node))
 
236
        self.assertEqual(10, node.maximum_size)
 
237
        self.assertEqual(("sha1:1234",), node.key())
 
238
        self.assertEqual('pref\x00fo', node._search_prefix)
 
239
        self.assertEqual({'pref\x00fo\x00': ('sha1:abcd',)}, node._items)
 
240
 
 
241
 
 
242
class Test_BytesToTextKey(tests.TestCase):
 
243
 
 
244
    def assertBytesToTextKey(self, key, bytes):
 
245
        self.assertEqual(key,
 
246
                         self.module._bytes_to_text_key(bytes))
 
247
 
 
248
    def assertBytesToTextKeyRaises(self, bytes):
 
249
        # These are invalid bytes, and we want to make sure the code under test
 
250
        # raises an exception rather than segfaults, etc. We don't particularly
 
251
        # care what exception.
 
252
        self.assertRaises(Exception, self.module._bytes_to_text_key, bytes)
 
253
 
 
254
    def test_file(self):
 
255
        self.assertBytesToTextKey(('file-id', 'revision-id'),
 
256
                 'file: file-id\nparent-id\nname\nrevision-id\n'
 
257
                 'da39a3ee5e6b4b0d3255bfef95601890afd80709\n100\nN')
 
258
 
 
259
    def test_invalid_no_kind(self):
 
260
        self.assertBytesToTextKeyRaises(
 
261
                 'file  file-id\nparent-id\nname\nrevision-id\n'
 
262
                 'da39a3ee5e6b4b0d3255bfef95601890afd80709\n100\nN')
 
263
 
 
264
    def test_invalid_no_space(self):
 
265
        self.assertBytesToTextKeyRaises(
 
266
                 'file:file-id\nparent-id\nname\nrevision-id\n'
 
267
                 'da39a3ee5e6b4b0d3255bfef95601890afd80709\n100\nN')
 
268
 
 
269
    def test_invalid_too_short_file_id(self):
 
270
        self.assertBytesToTextKeyRaises('file:file-id')
 
271
 
 
272
    def test_invalid_too_short_parent_id(self):
 
273
        self.assertBytesToTextKeyRaises('file:file-id\nparent-id')
 
274
 
 
275
    def test_invalid_too_short_name(self):
 
276
        self.assertBytesToTextKeyRaises('file:file-id\nparent-id\nname')
 
277
 
 
278
    def test_dir(self):
 
279
        self.assertBytesToTextKey(('dir-id', 'revision-id'),
 
280
                 'dir: dir-id\nparent-id\nname\nrevision-id')