1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
|
# -*- coding: utf-8 -*-
# ******************************************************************************
#
# Copyright (C) 2009 Olivier Tilloy <olivier@tilloy.net>
#
# This file is part of the pyexiv2 distribution.
#
# pyexiv2 is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# pyexiv2 is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with pyexiv2; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, 5th Floor, Boston, MA 02110-1301 USA.
#
# Author: Olivier Tilloy <olivier@tilloy.net>
#
# ******************************************************************************
import unittest
from pyexiv2 import ListenerInterface, NotifyingList
import random
class SimpleListener(ListenerInterface):
def __init__(self):
self.changes = 0
def contents_changed(self):
self.changes += 1
class TestNotifyingList(unittest.TestCase):
def setUp(self):
self.values = NotifyingList([5, 7, 9, 14, 57, 3, 2])
def test_no_listener(self):
# No listener is registered, nothing should happen.
self.values[3] = 13
del self.values[5]
self.values.append(17)
self.values.extend([11, 22])
self.values.insert(4, 24)
self.values.pop()
self.values.remove(9)
self.values.reverse()
self.values.sort()
self.values += [8, 4]
self.values *= 3
self.values[3:4] = [8, 4]
del self.values[3:5]
def test_listener_interface(self):
self.values.register_listener(ListenerInterface())
self.failUnlessRaises(NotImplementedError,
self.values.__setitem__, 3, 13)
self.failUnlessRaises(NotImplementedError, self.values.__delitem__, 5)
self.failUnlessRaises(NotImplementedError, self.values.append, 17)
self.failUnlessRaises(NotImplementedError, self.values.extend, [11, 22])
self.failUnlessRaises(NotImplementedError, self.values.insert, 4, 24)
self.failUnlessRaises(NotImplementedError, self.values.pop)
self.failUnlessRaises(NotImplementedError, self.values.remove, 9)
self.failUnlessRaises(NotImplementedError, self.values.reverse)
self.failUnlessRaises(NotImplementedError, self.values.sort)
self.failUnlessRaises(NotImplementedError, self.values.__iadd__, [8, 4])
self.failUnlessRaises(NotImplementedError, self.values.__imul__, 3)
self.failUnlessRaises(NotImplementedError, self.values.__setslice__,
3, 4, [8, 4])
self.failUnlessRaises(NotImplementedError, self.values.__delslice__,
3, 5)
def _register_listeners(self):
# Register a random number of listeners
listeners = [SimpleListener() for i in xrange(random.randint(3, 20))]
for listener in listeners:
self.values.register_listener(listener)
return listeners
def test_setitem(self):
listeners = self._register_listeners()
self.values[3] = 13
self.failUnlessEqual(self.values, [5, 7, 9, 13, 57, 3, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 1)
self.failUnlessRaises(IndexError, self.values.__setitem__, 9, 27)
self.failUnlessEqual(self.values, [5, 7, 9, 13, 57, 3, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 1)
def test_delitem(self):
listeners = self._register_listeners()
del self.values[5]
self.failUnlessEqual(self.values, [5, 7, 9, 14, 57, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 1)
self.failUnlessRaises(IndexError, self.values.__delitem__, 9)
self.failUnlessEqual(self.values, [5, 7, 9, 14, 57, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 1)
def test_append(self):
listeners = self._register_listeners()
self.values.append(17)
self.failUnlessEqual(self.values, [5, 7, 9, 14, 57, 3, 2, 17])
for listener in listeners:
self.failUnlessEqual(listener.changes, 1)
def test_extend(self):
listeners = self._register_listeners()
self.values.extend([11, 22])
self.failUnlessEqual(self.values, [5, 7, 9, 14, 57, 3, 2, 11, 22])
for listener in listeners:
self.failUnlessEqual(listener.changes, 1)
self.failUnlessRaises(TypeError, self.values.extend, 26)
self.failUnlessEqual(self.values, [5, 7, 9, 14, 57, 3, 2, 11, 22])
for listener in listeners:
self.failUnlessEqual(listener.changes, 1)
def test_insert(self):
listeners = self._register_listeners()
self.values.insert(4, 24)
self.failUnlessEqual(self.values, [5, 7, 9, 14, 24, 57, 3, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 1)
def test_pop(self):
listeners = self._register_listeners()
self.values.pop()
self.failUnlessEqual(self.values, [5, 7, 9, 14, 57, 3])
for listener in listeners:
self.failUnlessEqual(listener.changes, 1)
self.values.pop(4)
self.failUnlessEqual(self.values, [5, 7, 9, 14, 3])
for listener in listeners:
self.failUnlessEqual(listener.changes, 2)
self.values.pop(-2)
self.failUnlessEqual(self.values, [5, 7, 9, 3])
for listener in listeners:
self.failUnlessEqual(listener.changes, 3)
self.failUnlessRaises(IndexError, self.values.pop, 33)
self.failUnlessEqual(self.values, [5, 7, 9, 3])
for listener in listeners:
self.failUnlessEqual(listener.changes, 3)
def test_remove(self):
listeners = self._register_listeners()
self.values.remove(9)
self.failUnlessEqual(self.values, [5, 7, 14, 57, 3, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 1)
self.failUnlessRaises(ValueError, self.values.remove, 33)
self.failUnlessEqual(self.values, [5, 7, 14, 57, 3, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 1)
def test_reverse(self):
listeners = self._register_listeners()
self.values.reverse()
self.failUnlessEqual(self.values, [2, 3, 57, 14, 9, 7, 5])
for listener in listeners:
self.failUnlessEqual(listener.changes, 1)
def test_sort(self):
listeners = self._register_listeners()
self.values.sort()
self.failUnlessEqual(self.values, [2, 3, 5, 7, 9, 14, 57])
for listener in listeners:
self.failUnlessEqual(listener.changes, 1)
self.values.sort(cmp=lambda x, y: y - x)
self.failUnlessEqual(self.values, [57, 14, 9, 7, 5, 3, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 2)
self.values.sort(key=lambda x: x * x)
self.failUnlessEqual(self.values, [2, 3, 5, 7, 9, 14, 57])
for listener in listeners:
self.failUnlessEqual(listener.changes, 3)
self.values.sort(reverse=True)
self.failUnlessEqual(self.values, [57, 14, 9, 7, 5, 3, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 4)
def test_iadd(self):
listeners = self._register_listeners()
self.values += [44, 31, 19]
self.failUnlessEqual(self.values, [5, 7, 9, 14, 57, 3, 2, 44, 31, 19])
for listener in listeners:
self.failUnlessEqual(listener.changes, 1)
def test_imul(self):
listeners = self._register_listeners()
self.values *= 3
self.failUnlessEqual(self.values,
[5, 7, 9, 14, 57, 3, 2,
5, 7, 9, 14, 57, 3, 2,
5, 7, 9, 14, 57, 3, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 1)
def test_setslice(self):
listeners = self._register_listeners()
# Basic slicing (of the form [i:j]): implemented as __setslice__.
self.values[2:4] = [3, 4]
self.failUnlessEqual(self.values, [5, 7, 3, 4, 57, 3, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 1)
self.values[3:5] = [77, 8, 12]
self.failUnlessEqual(self.values, [5, 7, 3, 77, 8, 12, 3, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 2)
self.values[2:5] = [1, 0]
self.failUnlessEqual(self.values, [5, 7, 1, 0, 12, 3, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 3)
self.values[0:2] = []
self.failUnlessEqual(self.values, [1, 0, 12, 3, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 4)
self.values[2:2] = [7, 5]
self.failUnlessEqual(self.values, [1, 0, 7, 5, 12, 3, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 5)
# With negatives indexes
self.values[4:-2] = [9]
self.failUnlessEqual(self.values, [1, 0, 7, 5, 9, 3, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 6)
self.values[-2:1] = [6, 4]
self.failUnlessEqual(self.values, [1, 0, 7, 5, 9, 6, 4, 3, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 7)
self.values[-5:-2] = [8]
self.failUnlessEqual(self.values, [1, 0, 7, 5, 8, 3, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 8)
# With missing (implicit) indexes
self.values[:2] = [4]
self.failUnlessEqual(self.values, [4, 7, 5, 8, 3, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 9)
self.values[4:] = [1]
self.failUnlessEqual(self.values, [4, 7, 5, 8, 1])
for listener in listeners:
self.failUnlessEqual(listener.changes, 10)
self.values[:] = [5, 7, 9, 14, 57, 3, 2]
self.failUnlessEqual(self.values, [5, 7, 9, 14, 57, 3, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 11)
def test_delslice(self):
listeners = self._register_listeners()
del self.values[2:3]
self.failUnlessEqual(self.values, [5, 7, 14, 57, 3, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 1)
del self.values[2:2]
self.failUnlessEqual(self.values, [5, 7, 14, 57, 3, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 1)
# With negatives indexes
del self.values[4:-1]
self.failUnlessEqual(self.values, [5, 7, 14, 57, 2])
for listener in listeners:
self.failUnlessEqual(listener.changes, 2)
del self.values[-1:5]
self.failUnlessEqual(self.values, [5, 7, 14, 57])
for listener in listeners:
self.failUnlessEqual(listener.changes, 3)
del self.values[-2:-1]
self.failUnlessEqual(self.values, [5, 7, 57])
for listener in listeners:
self.failUnlessEqual(listener.changes, 4)
# With missing (implicit) indexes
del self.values[:1]
self.failUnlessEqual(self.values, [7, 57])
for listener in listeners:
self.failUnlessEqual(listener.changes, 5)
del self.values[1:]
self.failUnlessEqual(self.values, [7])
for listener in listeners:
self.failUnlessEqual(listener.changes, 6)
del self.values[:]
self.failUnlessEqual(self.values, [])
for listener in listeners:
self.failUnlessEqual(listener.changes, 7)
|
