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  • Committer: Martin Pool
  • Date: 2005-05-03 07:48:35 UTC
  • Revision ID: mbp@sourcefrog.net-20050503074835-0133bd0c16440fcd
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1
 
# Copyright (C) 2005 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
16
 
 
17
 
from cStringIO import StringIO
18
 
 
19
 
from bzrlib import (
20
 
    errors, 
21
 
    inventory, 
22
 
    xml7,
23
 
    xml_serializer,
24
 
    )
25
 
from bzrlib.tests import TestCase
26
 
from bzrlib.inventory import Inventory, InventoryEntry
27
 
from bzrlib.xml4 import serializer_v4
28
 
import bzrlib.xml5
29
 
 
30
 
_working_inventory_v4 = """<inventory file_id="TREE_ROOT">
31
 
<entry file_id="bar-20050901064931-73b4b1138abc9cd2" kind="file" name="bar" parent_id="TREE_ROOT" />
32
 
<entry file_id="foo-20050801201819-4139aa4a272f4250" kind="directory" name="foo" parent_id="TREE_ROOT" />
33
 
<entry file_id="bar-20050824000535-6bc48cfad47ed134" kind="file" name="bar" parent_id="foo-20050801201819-4139aa4a272f4250" />
34
 
</inventory>"""
35
 
 
36
 
 
37
 
_revision_v4 = """<revision committer="Martin Pool &lt;mbp@sourcefrog.net&gt;"
38
 
    inventory_id="mbp@sourcefrog.net-20050905080035-e0439293f8b6b9f9"
39
 
    inventory_sha1="e79c31c1deb64c163cf660fdedd476dd579ffd41"
40
 
    revision_id="mbp@sourcefrog.net-20050905080035-e0439293f8b6b9f9"
41
 
    timestamp="1125907235.212"
42
 
    timezone="36000">
43
 
<message>- start splitting code for xml (de)serialization away from objects
44
 
  preparatory to supporting multiple formats by a single library
45
 
</message>
46
 
<parents>
47
 
<revision_ref revision_id="mbp@sourcefrog.net-20050905063503-43948f59fa127d92" revision_sha1="7bdf4cc8c5bdac739f8cf9b10b78cf4b68f915ff" />
48
 
</parents>
49
 
</revision>
50
 
"""
51
 
 
52
 
_revision_v5 = """<revision committer="Martin Pool &lt;mbp@sourcefrog.net&gt;"
53
 
    inventory_sha1="e79c31c1deb64c163cf660fdedd476dd579ffd41"
54
 
    revision_id="mbp@sourcefrog.net-20050905080035-e0439293f8b6b9f9"
55
 
    timestamp="1125907235.212"
56
 
    timezone="36000">
57
 
<message>- start splitting code for xml (de)serialization away from objects
58
 
  preparatory to supporting multiple formats by a single library
59
 
</message>
60
 
<parents>
61
 
<revision_ref revision_id="mbp@sourcefrog.net-20050905063503-43948f59fa127d92"/>
62
 
</parents>
63
 
</revision>
64
 
"""
65
 
 
66
 
_revision_v5_utc = """\
67
 
<revision committer="Martin Pool &lt;mbp@sourcefrog.net&gt;"
68
 
    inventory_sha1="e79c31c1deb64c163cf660fdedd476dd579ffd41"
69
 
    revision_id="mbp@sourcefrog.net-20050905080035-e0439293f8b6b9f9"
70
 
    timestamp="1125907235.212"
71
 
    timezone="0">
72
 
<message>- start splitting code for xml (de)serialization away from objects
73
 
  preparatory to supporting multiple formats by a single library
74
 
</message>
75
 
<parents>
76
 
<revision_ref revision_id="mbp@sourcefrog.net-20050905063503-43948f59fa127d92"/>
77
 
</parents>
78
 
</revision>
79
 
"""
80
 
 
81
 
_committed_inv_v5 = """<inventory>
82
 
<file file_id="bar-20050901064931-73b4b1138abc9cd2" 
83
 
      name="bar" parent_id="TREE_ROOT" 
84
 
      revision="mbp@foo-123123"/>
85
 
<directory name="subdir"
86
 
           file_id="foo-20050801201819-4139aa4a272f4250"
87
 
           parent_id="TREE_ROOT" 
88
 
           revision="mbp@foo-00"/>
89
 
<file executable="yes" file_id="bar-20050824000535-6bc48cfad47ed134" 
90
 
      name="bar" parent_id="foo-20050801201819-4139aa4a272f4250" 
91
 
      revision="mbp@foo-00"/>
92
 
</inventory>
93
 
"""
94
 
 
95
 
_basis_inv_v5 = """<inventory revision_id="mbp@sourcefrog.net-20050905063503-43948f59fa127d92">
96
 
<file file_id="bar-20050901064931-73b4b1138abc9cd2" 
97
 
      name="bar" parent_id="TREE_ROOT" 
98
 
      revision="mbp@foo-123123"/>
99
 
<directory name="subdir"
100
 
           file_id="foo-20050801201819-4139aa4a272f4250"
101
 
           parent_id="TREE_ROOT" 
102
 
           revision="mbp@foo-00"/>
103
 
<file file_id="bar-20050824000535-6bc48cfad47ed134" 
104
 
      name="bar" parent_id="foo-20050801201819-4139aa4a272f4250" 
105
 
      revision="mbp@foo-00"/>
106
 
</inventory>
107
 
"""
108
 
 
109
 
 
110
 
# DO NOT REFLOW THIS. Its the exact revision we want.
111
 
_expected_rev_v5 = """<revision committer="Martin Pool &lt;mbp@sourcefrog.net&gt;" format="5" inventory_sha1="e79c31c1deb64c163cf660fdedd476dd579ffd41" revision_id="mbp@sourcefrog.net-20050905080035-e0439293f8b6b9f9" timestamp="1125907235.212" timezone="36000">
112
 
<message>- start splitting code for xml (de)serialization away from objects
113
 
  preparatory to supporting multiple formats by a single library
114
 
</message>
115
 
<parents>
116
 
<revision_ref revision_id="mbp@sourcefrog.net-20050905063503-43948f59fa127d92" />
117
 
</parents>
118
 
</revision>
119
 
"""
120
 
 
121
 
 
122
 
# DO NOT REFLOW THIS. Its the exact inventory we want.
123
 
_expected_inv_v5 = """<inventory format="5">
124
 
<file file_id="bar-20050901064931-73b4b1138abc9cd2" name="bar" revision="mbp@foo-123123" />
125
 
<directory file_id="foo-20050801201819-4139aa4a272f4250" name="subdir" revision="mbp@foo-00" />
126
 
<file executable="yes" file_id="bar-20050824000535-6bc48cfad47ed134" name="bar" parent_id="foo-20050801201819-4139aa4a272f4250" revision="mbp@foo-00" />
127
 
</inventory>
128
 
"""
129
 
 
130
 
 
131
 
_expected_inv_v5_root = """<inventory file_id="f&lt;" format="5" revision_id="mother!">
132
 
<file file_id="bar-20050901064931-73b4b1138abc9cd2" name="bar" parent_id="f&lt;" revision="mbp@foo-123123" />
133
 
<directory file_id="foo-20050801201819-4139aa4a272f4250" name="subdir" parent_id="f&lt;" revision="mbp@foo-00" />
134
 
<file executable="yes" file_id="bar-20050824000535-6bc48cfad47ed134" name="bar" parent_id="foo-20050801201819-4139aa4a272f4250" revision="mbp@foo-00" />
135
 
</inventory>
136
 
"""
137
 
 
138
 
_expected_inv_v7 = """<inventory format="7" revision_id="rev_outer">
139
 
<directory file_id="tree-root-321" name="" revision="rev_outer" />
140
 
<directory file_id="dir-id" name="dir" parent_id="tree-root-321" revision="rev_outer" />
141
 
<file file_id="file-id" name="file" parent_id="tree-root-321" revision="rev_outer" />
142
 
<symlink file_id="link-id" name="link" parent_id="tree-root-321" revision="rev_outer" />
143
 
<tree-reference file_id="nested-id" name="nested" parent_id="tree-root-321" revision="rev_outer" reference_revision="rev_inner" />
144
 
</inventory>
145
 
"""
146
 
 
147
 
_revision_utf8_v5 = """<revision committer="Erik B&#229;gfors &lt;erik@foo.net&gt;"
148
 
    inventory_sha1="e79c31c1deb64c163cf660fdedd476dd579ffd41"
149
 
    revision_id="erik@b&#229;gfors-02"
150
 
    timestamp="1125907235.212"
151
 
    timezone="36000">
152
 
<message>Include &#181;nicode characters
153
 
</message>
154
 
<parents>
155
 
<revision_ref revision_id="erik@b&#229;gfors-01"/>
156
 
</parents>
157
 
</revision>
158
 
"""
159
 
 
160
 
_inventory_utf8_v5 = """<inventory file_id="TRE&#233;_ROOT" format="5"
161
 
                                   revision_id="erik@b&#229;gfors-02">
162
 
<file file_id="b&#229;r-01"
163
 
      name="b&#229;r" parent_id="TRE&#233;_ROOT"
164
 
      revision="erik@b&#229;gfors-01"/>
165
 
<directory name="s&#181;bdir"
166
 
           file_id="s&#181;bdir-01"
167
 
           parent_id="TRE&#233;_ROOT"
168
 
           revision="erik@b&#229;gfors-01"/>
169
 
<file executable="yes" file_id="b&#229;r-02"
170
 
      name="b&#229;r" parent_id="s&#181;bdir-01"
171
 
      revision="erik@b&#229;gfors-02"/>
172
 
</inventory>
173
 
"""
174
 
 
175
 
 
176
 
class TestSerializer(TestCase):
177
 
    """Test XML serialization"""
178
 
    def test_canned_inventory(self):
179
 
        """Test unpacked a canned inventory v4 file."""
180
 
        inp = StringIO(_working_inventory_v4)
181
 
        inv = serializer_v4.read_inventory(inp)
182
 
        self.assertEqual(len(inv), 4)
183
 
        self.assert_('bar-20050901064931-73b4b1138abc9cd2' in inv)
184
 
 
185
 
    def test_unpack_revision(self):
186
 
        """Test unpacking a canned revision v4"""
187
 
        inp = StringIO(_revision_v4)
188
 
        rev = serializer_v4.read_revision(inp)
189
 
        eq = self.assertEqual
190
 
        eq(rev.committer,
191
 
           "Martin Pool <mbp@sourcefrog.net>")
192
 
        eq(rev.inventory_id,
193
 
           "mbp@sourcefrog.net-20050905080035-e0439293f8b6b9f9")
194
 
        eq(len(rev.parent_ids), 1)
195
 
        eq(rev.parent_ids[0],
196
 
           "mbp@sourcefrog.net-20050905063503-43948f59fa127d92")
197
 
 
198
 
    def test_unpack_revision_5(self):
199
 
        """Test unpacking a canned revision v5"""
200
 
        inp = StringIO(_revision_v5)
201
 
        rev = bzrlib.xml5.serializer_v5.read_revision(inp)
202
 
        eq = self.assertEqual
203
 
        eq(rev.committer,
204
 
           "Martin Pool <mbp@sourcefrog.net>")
205
 
        eq(len(rev.parent_ids), 1)
206
 
        eq(rev.timezone, 36000)
207
 
        eq(rev.parent_ids[0],
208
 
           "mbp@sourcefrog.net-20050905063503-43948f59fa127d92")
209
 
 
210
 
    def test_unpack_revision_5_utc(self):
211
 
        inp = StringIO(_revision_v5_utc)
212
 
        rev = bzrlib.xml5.serializer_v5.read_revision(inp)
213
 
        eq = self.assertEqual
214
 
        eq(rev.committer,
215
 
           "Martin Pool <mbp@sourcefrog.net>")
216
 
        eq(len(rev.parent_ids), 1)
217
 
        eq(rev.timezone, 0)
218
 
        eq(rev.parent_ids[0],
219
 
           "mbp@sourcefrog.net-20050905063503-43948f59fa127d92")
220
 
 
221
 
    def test_unpack_inventory_5(self):
222
 
        """Unpack canned new-style inventory"""
223
 
        inp = StringIO(_committed_inv_v5)
224
 
        inv = bzrlib.xml5.serializer_v5.read_inventory(inp)
225
 
        eq = self.assertEqual
226
 
        eq(len(inv), 4)
227
 
        ie = inv['bar-20050824000535-6bc48cfad47ed134']
228
 
        eq(ie.kind, 'file')
229
 
        eq(ie.revision, 'mbp@foo-00')
230
 
        eq(ie.name, 'bar')
231
 
        eq(inv[ie.parent_id].kind, 'directory')
232
 
 
233
 
    def test_unpack_basis_inventory_5(self):
234
 
        """Unpack canned new-style inventory"""
235
 
        inp = StringIO(_basis_inv_v5)
236
 
        inv = bzrlib.xml5.serializer_v5.read_inventory(inp)
237
 
        eq = self.assertEqual
238
 
        eq(len(inv), 4)
239
 
        eq(inv.revision_id, 'mbp@sourcefrog.net-20050905063503-43948f59fa127d92')
240
 
        ie = inv['bar-20050824000535-6bc48cfad47ed134']
241
 
        eq(ie.kind, 'file')
242
 
        eq(ie.revision, 'mbp@foo-00')
243
 
        eq(ie.name, 'bar')
244
 
        eq(inv[ie.parent_id].kind, 'directory')
245
 
 
246
 
    def test_repack_inventory_5(self):
247
 
        inp = StringIO(_committed_inv_v5)
248
 
        inv = bzrlib.xml5.serializer_v5.read_inventory(inp)
249
 
        outp = StringIO()
250
 
        bzrlib.xml5.serializer_v5.write_inventory(inv, outp)
251
 
        self.assertEqualDiff(_expected_inv_v5, outp.getvalue())
252
 
        inv2 = bzrlib.xml5.serializer_v5.read_inventory(StringIO(outp.getvalue()))
253
 
        self.assertEqual(inv, inv2)
254
 
    
255
 
    def assertRoundTrips(self, xml_string):
256
 
        inp = StringIO(xml_string)
257
 
        inv = bzrlib.xml5.serializer_v5.read_inventory(inp)
258
 
        outp = StringIO()
259
 
        bzrlib.xml5.serializer_v5.write_inventory(inv, outp)
260
 
        self.assertEqualDiff(xml_string, outp.getvalue())
261
 
        inv2 = bzrlib.xml5.serializer_v5.read_inventory(StringIO(outp.getvalue()))
262
 
        self.assertEqual(inv, inv2)
263
 
 
264
 
    def tests_serialize_inventory_v5_with_root(self):
265
 
        self.assertRoundTrips(_expected_inv_v5_root)
266
 
 
267
 
    def check_repack_revision(self, txt):
268
 
        """Check that repacking a revision yields the same information"""
269
 
        inp = StringIO(txt)
270
 
        rev = bzrlib.xml5.serializer_v5.read_revision(inp)
271
 
        outp = StringIO()
272
 
        bzrlib.xml5.serializer_v5.write_revision(rev, outp)
273
 
        outfile_contents = outp.getvalue()
274
 
        rev2 = bzrlib.xml5.serializer_v5.read_revision(StringIO(outfile_contents))
275
 
        self.assertEqual(rev, rev2)
276
 
 
277
 
    def test_repack_revision_5(self):
278
 
        """Round-trip revision to XML v5"""
279
 
        self.check_repack_revision(_revision_v5)
280
 
 
281
 
    def test_repack_revision_5_utc(self):
282
 
        self.check_repack_revision(_revision_v5_utc)
283
 
 
284
 
    def test_pack_revision_5(self):
285
 
        """Pack revision to XML v5"""
286
 
        # fixed 20051025, revisions should have final newline
287
 
        rev = bzrlib.xml5.serializer_v5.read_revision_from_string(_revision_v5)
288
 
        outp = StringIO()
289
 
        bzrlib.xml5.serializer_v5.write_revision(rev, outp)
290
 
        outfile_contents = outp.getvalue()
291
 
        self.assertEqual(outfile_contents[-1], '\n')
292
 
        self.assertEqualDiff(outfile_contents, bzrlib.xml5.serializer_v5.write_revision_to_string(rev))
293
 
        self.assertEqualDiff(outfile_contents, _expected_rev_v5)
294
 
 
295
 
    def test_empty_property_value(self):
296
 
        """Create an empty property value check that it serializes correctly"""
297
 
        s_v5 = bzrlib.xml5.serializer_v5
298
 
        rev = s_v5.read_revision_from_string(_revision_v5)
299
 
        outp = StringIO()
300
 
        props = {'empty':'', 'one':'one'}
301
 
        rev.properties = props
302
 
        txt = s_v5.write_revision_to_string(rev)
303
 
        new_rev = s_v5.read_revision_from_string(txt)
304
 
        self.assertEqual(props, new_rev.properties)
305
 
 
306
 
    def test_roundtrip_inventory_v7(self):
307
 
        inv = Inventory('tree-root-321', revision_id='rev_outer')
308
 
        inv.add(inventory.TreeReference('nested-id', 'nested', 'tree-root-321',
309
 
                                        'rev_outer', 'rev_inner'))
310
 
        inv.add(inventory.InventoryFile('file-id', 'file', 'tree-root-321'))
311
 
        inv.add(inventory.InventoryDirectory('dir-id', 'dir', 
312
 
                                             'tree-root-321'))
313
 
        inv.add(inventory.InventoryLink('link-id', 'link', 'tree-root-321'))
314
 
        inv['tree-root-321'].revision = 'rev_outer'
315
 
        inv['dir-id'].revision = 'rev_outer'
316
 
        inv['file-id'].revision = 'rev_outer'
317
 
        inv['link-id'].revision = 'rev_outer'
318
 
        txt = xml7.serializer_v7.write_inventory_to_string(inv)
319
 
        self.assertEqualDiff(_expected_inv_v7, txt)
320
 
        inv2 = xml7.serializer_v7.read_inventory_from_string(txt)
321
 
        self.assertEqual(5, len(inv2))
322
 
        for path, ie in inv.iter_entries():
323
 
            self.assertEqual(ie, inv2[ie.file_id])
324
 
 
325
 
    def test_wrong_format_v7(self):
326
 
        """Can't accidentally open a file with wrong serializer"""
327
 
        s_v6 = bzrlib.xml6.serializer_v6
328
 
        s_v7 = xml7.serializer_v7
329
 
        self.assertRaises(errors.UnexpectedInventoryFormat, 
330
 
                          s_v7.read_inventory_from_string, _expected_inv_v5)
331
 
        self.assertRaises(errors.UnexpectedInventoryFormat, 
332
 
                          s_v6.read_inventory_from_string, _expected_inv_v7)
333
 
 
334
 
    def test_tree_reference(self):
335
 
        s_v5 = bzrlib.xml5.serializer_v5
336
 
        s_v6 = bzrlib.xml6.serializer_v6
337
 
        s_v7 = xml7.serializer_v7
338
 
        inv = Inventory('tree-root-321')
339
 
        inv.add(inventory.TreeReference('nested-id', 'nested', 'tree-root-321',
340
 
                                        'rev-outer', 'rev-inner'))
341
 
        self.assertRaises(errors.UnsupportedInventoryKind, 
342
 
                          s_v5.write_inventory_to_string, inv)
343
 
        self.assertRaises(errors.UnsupportedInventoryKind, 
344
 
                          s_v6.write_inventory_to_string, inv)
345
 
        txt = s_v7.write_inventory_to_string(inv)
346
 
        inv2 = s_v7.read_inventory_from_string(txt)
347
 
        self.assertEqual('tree-root-321', inv2['nested-id'].parent_id)
348
 
        self.assertEqual('rev-outer', inv2['nested-id'].revision)
349
 
        self.assertEqual('rev-inner', inv2['nested-id'].reference_revision)
350
 
        self.assertRaises(errors.UnsupportedInventoryKind, 
351
 
                          s_v6.read_inventory_from_string,
352
 
                          txt.replace('format="7"', 'format="6"'))
353
 
        self.assertRaises(errors.UnsupportedInventoryKind, 
354
 
                          s_v5.read_inventory_from_string,
355
 
                          txt.replace('format="7"', 'format="5"'))
356
 
 
357
 
    def test_revision_ids_are_utf8(self):
358
 
        """Parsed revision_ids should all be utf-8 strings, not unicode."""
359
 
        s_v5 = bzrlib.xml5.serializer_v5
360
 
        rev = s_v5.read_revision_from_string(_revision_utf8_v5)
361
 
        self.assertEqual('erik@b\xc3\xa5gfors-02', rev.revision_id)
362
 
        self.assertIsInstance(rev.revision_id, str)
363
 
        self.assertEqual(['erik@b\xc3\xa5gfors-01'], rev.parent_ids)
364
 
        for parent_id in rev.parent_ids:
365
 
            self.assertIsInstance(parent_id, str)
366
 
        self.assertEqual(u'Include \xb5nicode characters\n', rev.message)
367
 
        self.assertIsInstance(rev.message, unicode)
368
 
 
369
 
        # ie.revision should either be None or a utf-8 revision id
370
 
        inv = s_v5.read_inventory_from_string(_inventory_utf8_v5)
371
 
        rev_id_1 = u'erik@b\xe5gfors-01'.encode('utf8')
372
 
        rev_id_2 = u'erik@b\xe5gfors-02'.encode('utf8')
373
 
        fid_root = u'TRE\xe9_ROOT'.encode('utf8')
374
 
        fid_bar1 = u'b\xe5r-01'.encode('utf8')
375
 
        fid_sub = u's\xb5bdir-01'.encode('utf8')
376
 
        fid_bar2 = u'b\xe5r-02'.encode('utf8')
377
 
        expected = [(u'', fid_root, None, None),
378
 
                    (u'b\xe5r', fid_bar1, fid_root, rev_id_1),
379
 
                    (u's\xb5bdir', fid_sub, fid_root, rev_id_1),
380
 
                    (u's\xb5bdir/b\xe5r', fid_bar2, fid_sub, rev_id_2),
381
 
                   ]
382
 
        self.assertEqual(rev_id_2, inv.revision_id)
383
 
        self.assertIsInstance(inv.revision_id, str)
384
 
 
385
 
        actual = list(inv.iter_entries_by_dir())
386
 
        for ((exp_path, exp_file_id, exp_parent_id, exp_rev_id),
387
 
             (act_path, act_ie)) in zip(expected, actual):
388
 
            self.assertEqual(exp_path, act_path)
389
 
            self.assertIsInstance(act_path, unicode)
390
 
            self.assertEqual(exp_file_id, act_ie.file_id)
391
 
            self.assertIsInstance(act_ie.file_id, str)
392
 
            self.assertEqual(exp_parent_id, act_ie.parent_id)
393
 
            if exp_parent_id is not None:
394
 
                self.assertIsInstance(act_ie.parent_id, str)
395
 
            self.assertEqual(exp_rev_id, act_ie.revision)
396
 
            if exp_rev_id is not None:
397
 
                self.assertIsInstance(act_ie.revision, str)
398
 
 
399
 
        self.assertEqual(len(expected), len(actual))
400
 
 
401
 
    def test_registry(self):
402
 
        self.assertIs(serializer_v4,
403
 
                      xml_serializer.format_registry.get('4'))
404
 
        self.assertIs(bzrlib.xml5.serializer_v5,
405
 
                      xml_serializer.format_registry.get('5'))
406
 
        self.assertIs(bzrlib.xml6.serializer_v6,
407
 
                      xml_serializer.format_registry.get('6'))
408
 
        self.assertIs(bzrlib.xml7.serializer_v7,
409
 
                      xml_serializer.format_registry.get('7'))
410
 
 
411
 
 
412
 
class TestEncodeAndEscape(TestCase):
413
 
    """Whitebox testing of the _encode_and_escape function."""
414
 
 
415
 
    def setUp(self):
416
 
        # Keep the cache clear before and after the test
417
 
        bzrlib.xml5._ensure_utf8_re()
418
 
        bzrlib.xml5._clear_cache()
419
 
        self.addCleanup(bzrlib.xml5._clear_cache)
420
 
 
421
 
    def test_simple_ascii(self):
422
 
        # _encode_and_escape always appends a final ", because these parameters
423
 
        # are being used in xml attributes, and by returning it now, we have to
424
 
        # do fewer string operations later.
425
 
        val = bzrlib.xml5._encode_and_escape('foo bar')
426
 
        self.assertEqual('foo bar"', val)
427
 
        # The second time should be cached
428
 
        val2 = bzrlib.xml5._encode_and_escape('foo bar')
429
 
        self.assertIs(val2, val)
430
 
 
431
 
    def test_ascii_with_xml(self):
432
 
        self.assertEqual('&amp;&apos;&quot;&lt;&gt;"',
433
 
                         bzrlib.xml5._encode_and_escape('&\'"<>'))
434
 
 
435
 
    def test_utf8_with_xml(self):
436
 
        # u'\xb5\xe5&\u062c'
437
 
        utf8_str = '\xc2\xb5\xc3\xa5&\xd8\xac'
438
 
        self.assertEqual('&#181;&#229;&amp;&#1580;"',
439
 
                         bzrlib.xml5._encode_and_escape(utf8_str))
440
 
 
441
 
    def test_unicode(self):
442
 
        uni_str = u'\xb5\xe5&\u062c'
443
 
        self.assertEqual('&#181;&#229;&amp;&#1580;"',
444
 
                         bzrlib.xml5._encode_and_escape(uni_str))