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
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
|
# -*- coding: utf-8 -*-
# vi:si:et:sw=4:sts=4:ts=4
import random
import sys
import time
from django.test import SimpleTestCase
from memoize import Memoizer, function_namespace, _get_argspec
class MemoizeTestCase(SimpleTestCase):
def setUp(self):
self.memoizer = Memoizer()
def test_00_set(self):
self.memoizer.set('hi', 'hello')
assert self.memoizer.get('hi') == 'hello'
def test_01_add(self):
self.memoizer.add('hi', 'hello')
assert self.memoizer.get('hi') == 'hello'
self.memoizer.add('hi', 'foobar')
assert self.memoizer.get('hi') == 'hello'
def test_02_delete(self):
self.memoizer.set('hi', 'hello')
self.memoizer.delete('hi')
assert self.memoizer.get('hi') is self.memoizer.default_cache_value
def test_06_memoize(self):
@self.memoizer.memoize(5)
def big_foo(a, b):
return a+b+random.randrange(0, 100000)
result = big_foo(5, 2)
time.sleep(1)
assert big_foo(5, 2) == result
result2 = big_foo(5, 3)
assert result2 != result
time.sleep(6)
assert big_foo(5, 2) != result
time.sleep(1)
assert big_foo(5, 3) != result2
def test_06a_memoize(self):
@self.memoizer.memoize(50)
def big_foo(a, b):
return a+b+random.randrange(0, 100000)
result = big_foo(5, 2)
time.sleep(2)
assert big_foo(5, 2) == result
def test_07_delete_memoize(self):
@self.memoizer.memoize(5)
def big_foo(a, b):
return a+b+random.randrange(0, 100000)
result = big_foo(5, 2)
result2 = big_foo(5, 3)
time.sleep(1)
assert big_foo(5, 2) == result
assert big_foo(5, 2) == result
assert big_foo(5, 3) != result
assert big_foo(5, 3) == result2
self.memoizer.delete_memoized(big_foo)
assert big_foo(5, 2) != result
assert big_foo(5, 3) != result2
def test_07b_delete_memoized_verhash(self):
@self.memoizer.memoize(5)
def big_foo(a, b):
return a+b+random.randrange(0, 100000)
result = big_foo(5, 2)
result2 = big_foo(5, 3)
time.sleep(1)
assert big_foo(5, 2) == result
assert big_foo(5, 2) == result
assert big_foo(5, 3) != result
assert big_foo(5, 3) == result2
self.memoizer.delete_memoized_verhash(big_foo)
_fname, _fname_instance = function_namespace(big_foo)
version_key = self.memoizer._memvname(_fname)
assert (
self.memoizer.get(version_key) is self.memoizer.default_cache_value
)
assert big_foo(5, 2) != result
assert big_foo(5, 3) != result2
assert (
self.memoizer.get(version_key) is not
self.memoizer.default_cache_value
)
def test_08_delete_memoize(self):
@self.memoizer.memoize()
def big_foo(a, b):
return a+b+random.randrange(0, 100000)
result_a = big_foo(5, 1)
result_b = big_foo(5, 2)
assert big_foo(5, 1) == result_a
assert big_foo(5, 2) == result_b
self.memoizer.delete_memoized(big_foo, 5, 2)
assert big_foo(5, 1) == result_a
assert big_foo(5, 2) != result_b
# Cleanup bigfoo 5,1 5,2 or it might conflict with
# following run if it also uses memecache
self.memoizer.delete_memoized(big_foo, 5, 2)
self.memoizer.delete_memoized(big_foo, 5, 1)
def test_09_args_memoize(self):
@self.memoizer.memoize()
def big_foo(a, b):
return sum(a)+sum(b)+random.randrange(0, 100000)
result_a = big_foo([5, 3, 2], [1])
result_b = big_foo([3, 3], [3, 1])
assert big_foo([5, 3, 2], [1]) == result_a
assert big_foo([3, 3], [3, 1]) == result_b
self.memoizer.delete_memoized(big_foo, [5, 3, 2], [1])
assert big_foo([5, 3, 2], [1]) != result_a
assert big_foo([3, 3], [3, 1]) == result_b
# Cleanup bigfoo 5,1 5,2 or it might conflict with
# following run if it also uses memecache
self.memoizer.delete_memoized(big_foo, [5, 3, 2], [1])
self.memoizer.delete_memoized(big_foo, [3, 3], [1])
def test_10_kwargs_memoize(self):
@self.memoizer.memoize()
def big_foo(a, b=None):
return a+sum(b.values())+random.randrange(0, 100000)
result_a = big_foo(1, dict(one=1, two=2))
result_b = big_foo(5, dict(three=3, four=4))
assert big_foo(1, dict(one=1, two=2)) == result_a
assert big_foo(5, dict(three=3, four=4)) == result_b
self.memoizer.delete_memoized(big_foo, 1, dict(one=1, two=2))
assert big_foo(1, dict(one=1, two=2)) != result_a
assert big_foo(5, dict(three=3, four=4)) == result_b
def test_10a_kwargonly_memoize(self):
@self.memoizer.memoize()
def big_foo(a=None):
if a is None:
a = 0
return a+random.random()
result_a = big_foo()
result_b = big_foo(5)
assert big_foo() == result_a
assert big_foo() < 1
assert big_foo(5) == result_b
assert big_foo(5) >= 5 and big_foo(5) < 6
def test_10a_arg_kwarg_memoize(self):
@self.memoizer.memoize()
def f(a, b, c=1):
return a+b+c+random.randrange(0, 100000)
assert f(1, 2) == f(1, 2, c=1)
assert f(1, 2) == f(1, 2, 1)
assert f(1, 2) == f(1, 2)
assert f(1, 2) != f(2, 1)
assert f(1, 2, 3) != f(1, 2)
with self.assertRaises(TypeError):
f(1)
def test_10ab_arg_kwarg_memoize(self):
@self.memoizer.memoize()
def f(a, **kwargs):
return (a, kwargs, random.randrange(0, 100000000))
f1 = f(1, b=2)
assert f1 == f(1, b=2)
assert f1 != f(1, b=4)
f2 = f(5, c=6)
assert f2 == f(5, c=6)
assert f2 != f(7, c=6)
self.memoizer.delete_memoized(f, 1, b=2)
assert f1 != f(1, b=2)
assert f2 == f(5, c=6)
assert f2 != f(7, c=6)
def test_10ac_arg_kwarg_memoize(self):
@self.memoizer.memoize()
def f(a, *args, **kwargs):
return (a, args, kwargs, random.randrange(0, 100000000))
f1 = f(1, 2, b=3)
assert f1 == f(1, 2, b=3)
assert f1 != f(1, 3, b=3)
f2 = f(5, 6, c=7)
assert f2 == f(5, 6, c=7)
assert f2 != f(7, 6, c=7)
self.memoizer.delete_memoized(f, 1, 2, b=3)
assert f1 != f(1, 2, b=3)
assert f2 == f(5, 6, c=7)
assert f2 != f(7, 6, c=7)
@self.memoizer.memoize()
def f(a, b=1, *args, **kwargs):
return (a, b, args, kwargs, random.randrange(0, 100000000))
f3 = f(1, 3, 4)
assert f3 == f(1, 3, 4)
assert f3 == f(*(1, 3, 4))
assert f3 != f(1, 3)
self.memoizer.delete_memoized(f, 1, 3, 4)
assert f3 != f(1, 3, 4)
def test_10b_classarg_memoize(self):
@self.memoizer.memoize()
def bar(a, *args):
return a.value + random.random() + sum(args)
class Adder(object):
def __init__(self, value, *args):
self.value = (value + sum(args))
adder = Adder(15)
adder2 = Adder(20)
adder3 = Adder(16, 5)
adder4 = Adder(21, 6)
w = bar(adder)
x = bar(adder2)
y = bar(adder3)
z = bar(adder4)
assert w != x
assert y != z
assert bar(adder) == w
assert bar(adder) != x
assert bar(adder3) == y
assert bar(adder3) != z
adder.value = 14
adder3.value = 15
assert bar(adder) == w
assert bar(adder) != x
assert bar(adder3) == y
assert bar(adder3) != z
assert bar(adder) != bar(adder2)
assert bar(adder3) != bar(adder4)
assert bar(adder2) == x
assert bar(adder4) == z
def test_10c_classfunc_memoize(self):
class Adder(object):
def __init__(self, initial):
self.initial = initial
@self.memoizer.memoize()
def add(self, b, *args):
return self.initial + b + sum(args)
adder1 = Adder(1)
adder2 = Adder(2)
x = adder1.add(3)
y = adder1.add(3, 4)
assert adder1.add(3) == x
assert adder1.add(4) != x
assert adder1.add(3, 4) == y
assert adder1.add(4, 4) != y
assert adder1.add(3) != adder2.add(3)
def test_10d_classfunc_memoize_delete(self):
class Adder(object):
def __init__(self, initial):
self.initial = initial
@self.memoizer.memoize()
def add(self, b, *args):
return self.initial + b + sum(args) + random.random()
adder1 = Adder(1)
adder2 = Adder(2)
a1 = adder1.add(3)
a2 = adder2.add(3)
b1 = adder1.add(3, 1)
b2 = adder2.add(3, 1)
assert a1 != a2
assert a1 != b1
assert a2 != b2
assert adder1.add(3) == a1
assert adder2.add(3) == a2
assert adder1.add(3, 1) == b1
assert adder2.add(3, 1) == b2
self.memoizer.delete_memoized(adder1.add)
a3 = adder1.add(3)
a4 = adder2.add(3)
b3 = adder1.add(3, 1)
b4 = adder2.add(3, 1)
self.assertNotEqual(a1, a3)
self.assertNotEqual(b1, b3)
assert a1 != a3
assert b1 != b3
self.assertEqual(a2, a4)
self.assertEqual(b2, b4)
self.memoizer.delete_memoized(Adder.add)
a5 = adder1.add(3)
a6 = adder2.add(3)
b5 = adder1.add(3, 1)
b6 = adder2.add(3, 1)
self.assertNotEqual(a5, a6)
self.assertNotEqual(b5, b6)
self.assertNotEqual(a3, a5)
self.assertNotEqual(b3, b5)
self.assertNotEqual(a4, a6)
self.assertNotEqual(b4, b6)
def test_10e_delete_memoize_classmethod(self):
class Mock(object):
@classmethod
@self.memoizer.memoize(5)
def big_foo(cls, a, b, *args):
return a+b+sum(args)+random.randrange(0, 100000)
result = Mock.big_foo(5, 2)
result2 = Mock.big_foo(5, 3)
result3 = Mock.big_foo(5, 2, 1)
result4 = Mock.big_foo(5, 3, 1)
time.sleep(1)
assert Mock.big_foo(5, 2) == result
assert Mock.big_foo(5, 2) == result
assert Mock.big_foo(5, 3) != result
assert Mock.big_foo(5, 3) == result2
assert Mock.big_foo(5, 2, 1) == result3
assert Mock.big_foo(5, 2, 1) == result3
assert Mock.big_foo(5, 3, 1) != result3
assert Mock.big_foo(5, 3, 1) == result4
self.memoizer.delete_memoized(Mock.big_foo)
assert Mock.big_foo(5, 2) != result
assert Mock.big_foo(5, 3) != result2
assert Mock.big_foo(5, 2, 1) != result3
assert Mock.big_foo(5, 3, 1) != result4
def test_14_memoized_multiple_arg_kwarg_calls(self):
@self.memoizer.memoize()
def big_foo(a, b, c=[1, 1], d=[1, 1]):
return sum(a)+sum(b)+sum(c)+sum(d)+random.randrange(0, 100000)
result_a = big_foo([5, 3, 2], [1], c=[3, 3], d=[3, 3])
assert big_foo([5, 3, 2], [1], d=[3, 3], c=[3, 3]) == result_a
assert big_foo(b=[1], a=[5, 3, 2], c=[3, 3], d=[3, 3]) == result_a
assert big_foo([5, 3, 2], [1], [3, 3], [3, 3]) == result_a
def test_15_memoize_multiple_arg_kwarg_delete(self):
@self.memoizer.memoize()
def big_foo(a, b, c=[1, 1], d=[1, 1]):
return sum(a)+sum(b)+sum(c)+sum(d)+random.randrange(0, 100000)
result_a = big_foo([5, 3, 2], [1], c=[3, 3], d=[3, 3])
self.memoizer.delete_memoized(big_foo, [5, 3, 2], [1], [3, 3], [3, 3])
result_b = big_foo([5, 3, 2], [1], c=[3, 3], d=[3, 3])
assert result_a != result_b
self.memoizer.delete_memoized(
big_foo, [5, 3, 2], b=[1], c=[3, 3], d=[3, 3]
)
result_b = big_foo([5, 3, 2], [1], c=[3, 3], d=[3, 3])
assert result_a != result_b
self.memoizer.delete_memoized(
big_foo, [5, 3, 2], [1], c=[3, 3], d=[3, 3]
)
result_a = big_foo([5, 3, 2], [1], c=[3, 3], d=[3, 3])
assert result_a != result_b
self.memoizer.delete_memoized(
big_foo, [5, 3, 2], b=[1], c=[3, 3], d=[3, 3]
)
result_a = big_foo([5, 3, 2], [1], c=[3, 3], d=[3, 3])
assert result_a != result_b
self.memoizer.delete_memoized(
big_foo, [5, 3, 2], [1], c=[3, 3], d=[3, 3]
)
result_b = big_foo([5, 3, 2], [1], c=[3, 3], d=[3, 3])
assert result_a != result_b
self.memoizer.delete_memoized(big_foo, [5, 3, 2], [1], [3, 3], [3, 3])
result_a = big_foo([5, 3, 2], [1], c=[3, 3], d=[3, 3])
assert result_a != result_b
def test_16_memoize_kwargs_to_args(self):
def big_foo(a, b, c=None, d=None):
return sum(a)+sum(b)+random.randrange(0, 100000)
expected = (1, 2, 'foo', 'bar')
args, kwargs = self.memoizer._memoize_kwargs_to_args(
big_foo, 1, 2, 'foo', 'bar')
assert (args == expected)
args, kwargs = self.memoizer._memoize_kwargs_to_args(
big_foo, 2, 'foo', 'bar', a=1)
assert (args == expected)
args, kwargs = self.memoizer._memoize_kwargs_to_args(
big_foo, a=1, b=2, c='foo', d='bar')
assert (args == expected)
args, kwargs = self.memoizer._memoize_kwargs_to_args(
big_foo, d='bar', b=2, a=1, c='foo')
assert (args == expected)
args, kwargs = self.memoizer._memoize_kwargs_to_args(
big_foo, 1, 2, d='bar', c='foo')
assert (args == expected)
def test_17_memoize_none_value(self):
self.memoizer = Memoizer()
@self.memoizer.memoize()
def foo():
return None
cache_key = foo.make_cache_key(foo.uncached)
assert (
self.memoizer.get(cache_key) is self.memoizer.default_cache_value)
result = foo()
assert result is None
assert self.memoizer.get(cache_key) is None
self.memoizer.delete_memoized(foo)
cache_key = foo.make_cache_key(foo.uncached)
assert (
self.memoizer.get(cache_key) is self.memoizer.default_cache_value)
def test_17_delete_memoized_instancemethod_with_mutable_param(self):
class Foo(object):
def __init__(self, id):
self.id = id
@self.memoizer.memoize(5)
def foo(self, bar_obj):
return random.randrange(0, 100000) + bar_obj.id
def __repr__(self):
return ('{}({})'.format(self.__class__.__name__, self.id))
class Bar(object):
def __init__(self, id):
self.id = id
def __repr__(self):
return ('{}({})'.format(self.__class__.__name__, self.id))
a = Foo(1)
b = Bar(1)
c = Bar(2)
result1 = a.foo(b)
result2 = a.foo(c)
time.sleep(1)
assert(a.foo(b) == result1)
assert(a.foo(c) == result2)
self.memoizer.delete_memoized(a.foo, a, b)
assert(a.foo(b) != result1)
assert(a.foo(c) == result2)
def test_18_python3_uses_getfullargspec(self):
def foo():
return None
major_version = sys.version_info.major
argspec = _get_argspec(foo)
if major_version < 3:
assert argspec.__class__.__name__ is 'ArgSpec'
else:
assert argspec.__class__.__name__ is 'FullArgSpec'
|
