forked from scrapy/scrapy
-
Notifications
You must be signed in to change notification settings - Fork 0
/
test_crawl.py
705 lines (617 loc) · 27 KB
/
test_crawl.py
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
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
import json
import logging
import unittest
from ipaddress import IPv4Address
from socket import gethostbyname
from urllib.parse import urlparse
from pytest import mark
from testfixtures import LogCapture
from twisted.internet import defer
from twisted.internet.ssl import Certificate
from twisted.python.failure import Failure
from twisted.trial.unittest import TestCase
from scrapy import signals
from scrapy.crawler import CrawlerRunner
from scrapy.exceptions import StopDownload
from scrapy.http import Request
from scrapy.http.response import Response
from scrapy.utils.python import to_unicode
from scrapy.utils.test import get_crawler
from tests import NON_EXISTING_RESOLVABLE
from tests.mockserver import MockServer
from tests.spiders import (
AsyncDefAsyncioGenComplexSpider,
AsyncDefAsyncioGenExcSpider,
AsyncDefAsyncioGenLoopSpider,
AsyncDefAsyncioGenSpider,
AsyncDefAsyncioReqsReturnSpider,
AsyncDefAsyncioReturnSingleElementSpider,
AsyncDefAsyncioReturnSpider,
AsyncDefAsyncioSpider,
AsyncDefDeferredDirectSpider,
AsyncDefDeferredMaybeWrappedSpider,
AsyncDefDeferredWrappedSpider,
AsyncDefSpider,
BrokenStartRequestsSpider,
BytesReceivedCallbackSpider,
BytesReceivedErrbackSpider,
CrawlSpiderWithAsyncCallback,
CrawlSpiderWithAsyncGeneratorCallback,
CrawlSpiderWithErrback,
CrawlSpiderWithParseMethod,
CrawlSpiderWithProcessRequestCallbackKeywordArguments,
DelaySpider,
DuplicateStartRequestsSpider,
FollowAllSpider,
HeadersReceivedCallbackSpider,
HeadersReceivedErrbackSpider,
SimpleSpider,
SingleRequestSpider,
)
class CrawlTestCase(TestCase):
def setUp(self):
self.mockserver = MockServer()
self.mockserver.__enter__()
def tearDown(self):
self.mockserver.__exit__(None, None, None)
@defer.inlineCallbacks
def test_follow_all(self):
crawler = get_crawler(FollowAllSpider)
yield crawler.crawl(mockserver=self.mockserver)
self.assertEqual(len(crawler.spider.urls_visited), 11) # 10 + start_url
@defer.inlineCallbacks
def test_fixed_delay(self):
yield self._test_delay(total=3, delay=0.2)
@defer.inlineCallbacks
def test_randomized_delay(self):
yield self._test_delay(total=3, delay=0.1, randomize=True)
@defer.inlineCallbacks
def _test_delay(self, total, delay, randomize=False):
crawl_kwargs = {
"maxlatency": delay * 2,
"mockserver": self.mockserver,
"total": total,
}
tolerance = 1 - (0.6 if randomize else 0.2)
settings = {"DOWNLOAD_DELAY": delay, "RANDOMIZE_DOWNLOAD_DELAY": randomize}
crawler = get_crawler(FollowAllSpider, settings)
yield crawler.crawl(**crawl_kwargs)
times = crawler.spider.times
total_time = times[-1] - times[0]
average = total_time / (len(times) - 1)
self.assertTrue(
average > delay * tolerance, f"download delay too small: {average}"
)
# Ensure that the same test parameters would cause a failure if no
# download delay is set. Otherwise, it means we are using a combination
# of ``total`` and ``delay`` values that are too small for the test
# code above to have any meaning.
settings["DOWNLOAD_DELAY"] = 0
crawler = get_crawler(FollowAllSpider, settings)
yield crawler.crawl(**crawl_kwargs)
times = crawler.spider.times
total_time = times[-1] - times[0]
average = total_time / (len(times) - 1)
self.assertFalse(
average > delay / tolerance, "test total or delay values are too small"
)
@defer.inlineCallbacks
def test_timeout_success(self):
crawler = get_crawler(DelaySpider)
yield crawler.crawl(n=0.5, mockserver=self.mockserver)
self.assertTrue(crawler.spider.t1 > 0)
self.assertTrue(crawler.spider.t2 > 0)
self.assertTrue(crawler.spider.t2 > crawler.spider.t1)
@defer.inlineCallbacks
def test_timeout_failure(self):
crawler = get_crawler(DelaySpider, {"DOWNLOAD_TIMEOUT": 0.35})
yield crawler.crawl(n=0.5, mockserver=self.mockserver)
self.assertTrue(crawler.spider.t1 > 0)
self.assertTrue(crawler.spider.t2 == 0)
self.assertTrue(crawler.spider.t2_err > 0)
self.assertTrue(crawler.spider.t2_err > crawler.spider.t1)
# server hangs after receiving response headers
crawler = get_crawler(DelaySpider, {"DOWNLOAD_TIMEOUT": 0.35})
yield crawler.crawl(n=0.5, b=1, mockserver=self.mockserver)
self.assertTrue(crawler.spider.t1 > 0)
self.assertTrue(crawler.spider.t2 == 0)
self.assertTrue(crawler.spider.t2_err > 0)
self.assertTrue(crawler.spider.t2_err > crawler.spider.t1)
@defer.inlineCallbacks
def test_retry_503(self):
crawler = get_crawler(SimpleSpider)
with LogCapture() as log:
yield crawler.crawl(
self.mockserver.url("/status?n=503"), mockserver=self.mockserver
)
self._assert_retried(log)
@defer.inlineCallbacks
def test_retry_conn_failed(self):
crawler = get_crawler(SimpleSpider)
with LogCapture() as log:
yield crawler.crawl(
"http://localhost:65432/status?n=503", mockserver=self.mockserver
)
self._assert_retried(log)
@defer.inlineCallbacks
def test_retry_dns_error(self):
if NON_EXISTING_RESOLVABLE:
raise unittest.SkipTest("Non-existing hosts are resolvable")
crawler = get_crawler(SimpleSpider)
with LogCapture() as log:
# try to fetch the homepage of a nonexistent domain
yield crawler.crawl(
"http://dns.resolution.invalid./", mockserver=self.mockserver
)
self._assert_retried(log)
@defer.inlineCallbacks
def test_start_requests_bug_before_yield(self):
with LogCapture("scrapy", level=logging.ERROR) as log:
crawler = get_crawler(BrokenStartRequestsSpider)
yield crawler.crawl(fail_before_yield=1, mockserver=self.mockserver)
self.assertEqual(len(log.records), 1)
record = log.records[0]
self.assertIsNotNone(record.exc_info)
self.assertIs(record.exc_info[0], ZeroDivisionError)
@defer.inlineCallbacks
def test_start_requests_bug_yielding(self):
with LogCapture("scrapy", level=logging.ERROR) as log:
crawler = get_crawler(BrokenStartRequestsSpider)
yield crawler.crawl(fail_yielding=1, mockserver=self.mockserver)
self.assertEqual(len(log.records), 1)
record = log.records[0]
self.assertIsNotNone(record.exc_info)
self.assertIs(record.exc_info[0], ZeroDivisionError)
@defer.inlineCallbacks
def test_start_requests_laziness(self):
settings = {"CONCURRENT_REQUESTS": 1}
crawler = get_crawler(BrokenStartRequestsSpider, settings)
yield crawler.crawl(mockserver=self.mockserver)
self.assertTrue(
crawler.spider.seedsseen.index(None) < crawler.spider.seedsseen.index(99),
crawler.spider.seedsseen,
)
@defer.inlineCallbacks
def test_start_requests_dupes(self):
settings = {"CONCURRENT_REQUESTS": 1}
crawler = get_crawler(DuplicateStartRequestsSpider, settings)
yield crawler.crawl(
dont_filter=True, distinct_urls=2, dupe_factor=3, mockserver=self.mockserver
)
self.assertEqual(crawler.spider.visited, 6)
crawler = get_crawler(DuplicateStartRequestsSpider, settings)
yield crawler.crawl(
dont_filter=False,
distinct_urls=3,
dupe_factor=4,
mockserver=self.mockserver,
)
self.assertEqual(crawler.spider.visited, 3)
@defer.inlineCallbacks
def test_unbounded_response(self):
# Completeness of responses without Content-Length or Transfer-Encoding
# can not be determined, we treat them as valid but flagged as "partial"
from urllib.parse import urlencode
query = urlencode(
{
"raw": """\
HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
X-Powered-By: Servlet 2.4; JBoss-4.2.3.GA (build: SVNTag=JBoss_4_2_3_GA date=200807181417)/JBossWeb-2.0
Set-Cookie: JSESSIONID=08515F572832D0E659FD2B0D8031D75F; Path=/
Pragma: no-cache
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Cache-Control: no-cache
Cache-Control: no-store
Content-Type: text/html;charset=UTF-8
Content-Language: en
Date: Tue, 27 Aug 2013 13:05:05 GMT
Connection: close
foo body
with multiples lines
"""
}
)
crawler = get_crawler(SimpleSpider)
with LogCapture() as log:
yield crawler.crawl(
self.mockserver.url(f"/raw?{query}"), mockserver=self.mockserver
)
self.assertEqual(str(log).count("Got response 200"), 1)
@defer.inlineCallbacks
def test_retry_conn_lost(self):
# connection lost after receiving data
crawler = get_crawler(SimpleSpider)
with LogCapture() as log:
yield crawler.crawl(
self.mockserver.url("/drop?abort=0"), mockserver=self.mockserver
)
self._assert_retried(log)
@defer.inlineCallbacks
def test_retry_conn_aborted(self):
# connection lost before receiving data
crawler = get_crawler(SimpleSpider)
with LogCapture() as log:
yield crawler.crawl(
self.mockserver.url("/drop?abort=1"), mockserver=self.mockserver
)
self._assert_retried(log)
def _assert_retried(self, log):
self.assertEqual(str(log).count("Retrying"), 2)
self.assertEqual(str(log).count("Gave up retrying"), 1)
@defer.inlineCallbacks
def test_referer_header(self):
"""Referer header is set by RefererMiddleware unless it is already set"""
req0 = Request(self.mockserver.url("/echo?headers=1&body=0"), dont_filter=1)
req1 = req0.replace()
req2 = req0.replace(headers={"Referer": None})
req3 = req0.replace(headers={"Referer": "http://example.com"})
req0.meta["next"] = req1
req1.meta["next"] = req2
req2.meta["next"] = req3
crawler = get_crawler(SingleRequestSpider)
yield crawler.crawl(seed=req0, mockserver=self.mockserver)
# basic asserts in case of weird communication errors
self.assertIn("responses", crawler.spider.meta)
self.assertNotIn("failures", crawler.spider.meta)
# start requests doesn't set Referer header
echo0 = json.loads(to_unicode(crawler.spider.meta["responses"][2].body))
self.assertNotIn("Referer", echo0["headers"])
# following request sets Referer to start request url
echo1 = json.loads(to_unicode(crawler.spider.meta["responses"][1].body))
self.assertEqual(echo1["headers"].get("Referer"), [req0.url])
# next request avoids Referer header
echo2 = json.loads(to_unicode(crawler.spider.meta["responses"][2].body))
self.assertNotIn("Referer", echo2["headers"])
# last request explicitly sets a Referer header
echo3 = json.loads(to_unicode(crawler.spider.meta["responses"][3].body))
self.assertEqual(echo3["headers"].get("Referer"), ["http://example.com"])
@defer.inlineCallbacks
def test_engine_status(self):
from scrapy.utils.engine import get_engine_status
est = []
def cb(response):
est.append(get_engine_status(crawler.engine))
crawler = get_crawler(SingleRequestSpider)
yield crawler.crawl(
seed=self.mockserver.url("/"), callback_func=cb, mockserver=self.mockserver
)
self.assertEqual(len(est), 1, est)
s = dict(est[0])
self.assertEqual(s["engine.spider.name"], crawler.spider.name)
self.assertEqual(s["len(engine.scraper.slot.active)"], 1)
@defer.inlineCallbacks
def test_format_engine_status(self):
from scrapy.utils.engine import format_engine_status
est = []
def cb(response):
est.append(format_engine_status(crawler.engine))
crawler = get_crawler(SingleRequestSpider)
yield crawler.crawl(
seed=self.mockserver.url("/"), callback_func=cb, mockserver=self.mockserver
)
self.assertEqual(len(est), 1, est)
est = est[0].split("\n")[2:-2] # remove header & footer
# convert to dict
est = [x.split(":") for x in est]
est = [x for sublist in est for x in sublist] # flatten
est = [x.lstrip().rstrip() for x in est]
it = iter(est)
s = dict(zip(it, it))
self.assertEqual(s["engine.spider.name"], crawler.spider.name)
self.assertEqual(s["len(engine.scraper.slot.active)"], "1")
@defer.inlineCallbacks
def test_graceful_crawl_error_handling(self):
"""
Test whether errors happening anywhere in Crawler.crawl() are properly
reported (and not somehow swallowed) after a graceful engine shutdown.
The errors should not come from within Scrapy's core but from within
spiders/middlewares/etc., e.g. raised in Spider.start_requests(),
SpiderMiddleware.process_start_requests(), etc.
"""
class TestError(Exception):
pass
class FaultySpider(SimpleSpider):
def start_requests(self):
raise TestError
crawler = get_crawler(FaultySpider)
yield self.assertFailure(crawler.crawl(mockserver=self.mockserver), TestError)
self.assertFalse(crawler.crawling)
@defer.inlineCallbacks
def test_open_spider_error_on_faulty_pipeline(self):
settings = {
"ITEM_PIPELINES": {
"tests.pipelines.ZeroDivisionErrorPipeline": 300,
}
}
crawler = get_crawler(SimpleSpider, settings)
yield self.assertFailure(
crawler.crawl(
self.mockserver.url("/status?n=200"), mockserver=self.mockserver
),
ZeroDivisionError,
)
self.assertFalse(crawler.crawling)
@defer.inlineCallbacks
def test_crawlerrunner_accepts_crawler(self):
crawler = get_crawler(SimpleSpider)
runner = CrawlerRunner()
with LogCapture() as log:
yield runner.crawl(
crawler,
self.mockserver.url("/status?n=200"),
mockserver=self.mockserver,
)
self.assertIn("Got response 200", str(log))
@defer.inlineCallbacks
def test_crawl_multiple(self):
runner = CrawlerRunner({"REQUEST_FINGERPRINTER_IMPLEMENTATION": "2.7"})
runner.crawl(
SimpleSpider,
self.mockserver.url("/status?n=200"),
mockserver=self.mockserver,
)
runner.crawl(
SimpleSpider,
self.mockserver.url("/status?n=503"),
mockserver=self.mockserver,
)
with LogCapture() as log:
yield runner.join()
self._assert_retried(log)
self.assertIn("Got response 200", str(log))
class CrawlSpiderTestCase(TestCase):
def setUp(self):
self.mockserver = MockServer()
self.mockserver.__enter__()
def tearDown(self):
self.mockserver.__exit__(None, None, None)
@defer.inlineCallbacks
def _run_spider(self, spider_cls):
items = []
def _on_item_scraped(item):
items.append(item)
crawler = get_crawler(spider_cls)
crawler.signals.connect(_on_item_scraped, signals.item_scraped)
with LogCapture() as log:
yield crawler.crawl(
self.mockserver.url("/status?n=200"), mockserver=self.mockserver
)
return log, items, crawler.stats
@defer.inlineCallbacks
def test_crawlspider_with_parse(self):
crawler = get_crawler(CrawlSpiderWithParseMethod)
with LogCapture() as log:
yield crawler.crawl(mockserver=self.mockserver)
self.assertIn("[parse] status 200 (foo: None)", str(log))
self.assertIn("[parse] status 201 (foo: None)", str(log))
self.assertIn("[parse] status 202 (foo: bar)", str(log))
@defer.inlineCallbacks
def test_crawlspider_with_async_callback(self):
crawler = get_crawler(CrawlSpiderWithAsyncCallback)
with LogCapture() as log:
yield crawler.crawl(mockserver=self.mockserver)
self.assertIn("[parse_async] status 200 (foo: None)", str(log))
self.assertIn("[parse_async] status 201 (foo: None)", str(log))
self.assertIn("[parse_async] status 202 (foo: bar)", str(log))
@defer.inlineCallbacks
def test_crawlspider_with_async_generator_callback(self):
crawler = get_crawler(CrawlSpiderWithAsyncGeneratorCallback)
with LogCapture() as log:
yield crawler.crawl(mockserver=self.mockserver)
self.assertIn("[parse_async_gen] status 200 (foo: None)", str(log))
self.assertIn("[parse_async_gen] status 201 (foo: None)", str(log))
self.assertIn("[parse_async_gen] status 202 (foo: bar)", str(log))
@defer.inlineCallbacks
def test_crawlspider_with_errback(self):
crawler = get_crawler(CrawlSpiderWithErrback)
with LogCapture() as log:
yield crawler.crawl(mockserver=self.mockserver)
self.assertIn("[parse] status 200 (foo: None)", str(log))
self.assertIn("[parse] status 201 (foo: None)", str(log))
self.assertIn("[parse] status 202 (foo: bar)", str(log))
self.assertIn("[errback] status 404", str(log))
self.assertIn("[errback] status 500", str(log))
self.assertIn("[errback] status 501", str(log))
@defer.inlineCallbacks
def test_crawlspider_process_request_cb_kwargs(self):
crawler = get_crawler(CrawlSpiderWithProcessRequestCallbackKeywordArguments)
with LogCapture() as log:
yield crawler.crawl(mockserver=self.mockserver)
self.assertIn("[parse] status 200 (foo: process_request)", str(log))
self.assertIn("[parse] status 201 (foo: process_request)", str(log))
self.assertIn("[parse] status 202 (foo: bar)", str(log))
@defer.inlineCallbacks
def test_async_def_parse(self):
crawler = get_crawler(AsyncDefSpider)
with LogCapture() as log:
yield crawler.crawl(
self.mockserver.url("/status?n=200"), mockserver=self.mockserver
)
self.assertIn("Got response 200", str(log))
@mark.only_asyncio()
@defer.inlineCallbacks
def test_async_def_asyncio_parse(self):
crawler = get_crawler(
AsyncDefAsyncioSpider,
{
"TWISTED_REACTOR": "twisted.internet.asyncioreactor.AsyncioSelectorReactor"
},
)
with LogCapture() as log:
yield crawler.crawl(
self.mockserver.url("/status?n=200"), mockserver=self.mockserver
)
self.assertIn("Got response 200", str(log))
@mark.only_asyncio()
@defer.inlineCallbacks
def test_async_def_asyncio_parse_items_list(self):
log, items, _ = yield self._run_spider(AsyncDefAsyncioReturnSpider)
self.assertIn("Got response 200", str(log))
self.assertIn({"id": 1}, items)
self.assertIn({"id": 2}, items)
@mark.only_asyncio()
@defer.inlineCallbacks
def test_async_def_asyncio_parse_items_single_element(self):
items = []
def _on_item_scraped(item):
items.append(item)
crawler = get_crawler(AsyncDefAsyncioReturnSingleElementSpider)
crawler.signals.connect(_on_item_scraped, signals.item_scraped)
with LogCapture() as log:
yield crawler.crawl(
self.mockserver.url("/status?n=200"), mockserver=self.mockserver
)
self.assertIn("Got response 200", str(log))
self.assertIn({"foo": 42}, items)
@mark.only_asyncio()
@defer.inlineCallbacks
def test_async_def_asyncgen_parse(self):
log, _, stats = yield self._run_spider(AsyncDefAsyncioGenSpider)
self.assertIn("Got response 200", str(log))
itemcount = stats.get_value("item_scraped_count")
self.assertEqual(itemcount, 1)
@mark.only_asyncio()
@defer.inlineCallbacks
def test_async_def_asyncgen_parse_loop(self):
log, items, stats = yield self._run_spider(AsyncDefAsyncioGenLoopSpider)
self.assertIn("Got response 200", str(log))
itemcount = stats.get_value("item_scraped_count")
self.assertEqual(itemcount, 10)
for i in range(10):
self.assertIn({"foo": i}, items)
@mark.only_asyncio()
@defer.inlineCallbacks
def test_async_def_asyncgen_parse_exc(self):
log, items, stats = yield self._run_spider(AsyncDefAsyncioGenExcSpider)
log = str(log)
self.assertIn("Spider error processing", log)
self.assertIn("ValueError", log)
itemcount = stats.get_value("item_scraped_count")
self.assertEqual(itemcount, 7)
for i in range(7):
self.assertIn({"foo": i}, items)
@mark.only_asyncio()
@defer.inlineCallbacks
def test_async_def_asyncgen_parse_complex(self):
_, items, stats = yield self._run_spider(AsyncDefAsyncioGenComplexSpider)
itemcount = stats.get_value("item_scraped_count")
self.assertEqual(itemcount, 156)
# some random items
for i in [1, 4, 21, 22, 207, 311]:
self.assertIn({"index": i}, items)
for i in [10, 30, 122]:
self.assertIn({"index2": i}, items)
@mark.only_asyncio()
@defer.inlineCallbacks
def test_async_def_asyncio_parse_reqs_list(self):
log, *_ = yield self._run_spider(AsyncDefAsyncioReqsReturnSpider)
for req_id in range(3):
self.assertIn(f"Got response 200, req_id {req_id}", str(log))
@mark.only_not_asyncio()
@defer.inlineCallbacks
def test_async_def_deferred_direct(self):
_, items, _ = yield self._run_spider(AsyncDefDeferredDirectSpider)
self.assertEqual(items, [{"code": 200}])
@mark.only_asyncio()
@defer.inlineCallbacks
def test_async_def_deferred_wrapped(self):
log, items, _ = yield self._run_spider(AsyncDefDeferredWrappedSpider)
self.assertEqual(items, [{"code": 200}])
@defer.inlineCallbacks
def test_async_def_deferred_maybe_wrapped(self):
_, items, _ = yield self._run_spider(AsyncDefDeferredMaybeWrappedSpider)
self.assertEqual(items, [{"code": 200}])
@defer.inlineCallbacks
def test_response_ssl_certificate_none(self):
crawler = get_crawler(SingleRequestSpider)
url = self.mockserver.url("/echo?body=test", is_secure=False)
yield crawler.crawl(seed=url, mockserver=self.mockserver)
self.assertIsNone(crawler.spider.meta["responses"][0].certificate)
@defer.inlineCallbacks
def test_response_ssl_certificate(self):
crawler = get_crawler(SingleRequestSpider)
url = self.mockserver.url("/echo?body=test", is_secure=True)
yield crawler.crawl(seed=url, mockserver=self.mockserver)
cert = crawler.spider.meta["responses"][0].certificate
self.assertIsInstance(cert, Certificate)
self.assertEqual(cert.getSubject().commonName, b"localhost")
self.assertEqual(cert.getIssuer().commonName, b"localhost")
@mark.xfail(reason="Responses with no body return early and contain no certificate")
@defer.inlineCallbacks
def test_response_ssl_certificate_empty_response(self):
crawler = get_crawler(SingleRequestSpider)
url = self.mockserver.url("/status?n=200", is_secure=True)
yield crawler.crawl(seed=url, mockserver=self.mockserver)
cert = crawler.spider.meta["responses"][0].certificate
self.assertIsInstance(cert, Certificate)
self.assertEqual(cert.getSubject().commonName, b"localhost")
self.assertEqual(cert.getIssuer().commonName, b"localhost")
@defer.inlineCallbacks
def test_dns_server_ip_address_none(self):
crawler = get_crawler(SingleRequestSpider)
url = self.mockserver.url("/status?n=200")
yield crawler.crawl(seed=url, mockserver=self.mockserver)
ip_address = crawler.spider.meta["responses"][0].ip_address
self.assertIsNone(ip_address)
@defer.inlineCallbacks
def test_dns_server_ip_address(self):
crawler = get_crawler(SingleRequestSpider)
url = self.mockserver.url("/echo?body=test")
expected_netloc, _ = urlparse(url).netloc.split(":")
yield crawler.crawl(seed=url, mockserver=self.mockserver)
ip_address = crawler.spider.meta["responses"][0].ip_address
self.assertIsInstance(ip_address, IPv4Address)
self.assertEqual(str(ip_address), gethostbyname(expected_netloc))
@defer.inlineCallbacks
def test_bytes_received_stop_download_callback(self):
crawler = get_crawler(BytesReceivedCallbackSpider)
yield crawler.crawl(mockserver=self.mockserver)
self.assertIsNone(crawler.spider.meta.get("failure"))
self.assertIsInstance(crawler.spider.meta["response"], Response)
self.assertEqual(
crawler.spider.meta["response"].body,
crawler.spider.meta.get("bytes_received"),
)
self.assertLess(
len(crawler.spider.meta["response"].body),
crawler.spider.full_response_length,
)
@defer.inlineCallbacks
def test_bytes_received_stop_download_errback(self):
crawler = get_crawler(BytesReceivedErrbackSpider)
yield crawler.crawl(mockserver=self.mockserver)
self.assertIsNone(crawler.spider.meta.get("response"))
self.assertIsInstance(crawler.spider.meta["failure"], Failure)
self.assertIsInstance(crawler.spider.meta["failure"].value, StopDownload)
self.assertIsInstance(crawler.spider.meta["failure"].value.response, Response)
self.assertEqual(
crawler.spider.meta["failure"].value.response.body,
crawler.spider.meta.get("bytes_received"),
)
self.assertLess(
len(crawler.spider.meta["failure"].value.response.body),
crawler.spider.full_response_length,
)
@defer.inlineCallbacks
def test_headers_received_stop_download_callback(self):
crawler = get_crawler(HeadersReceivedCallbackSpider)
yield crawler.crawl(mockserver=self.mockserver)
self.assertIsNone(crawler.spider.meta.get("failure"))
self.assertIsInstance(crawler.spider.meta["response"], Response)
self.assertEqual(
crawler.spider.meta["response"].headers,
crawler.spider.meta.get("headers_received"),
)
@defer.inlineCallbacks
def test_headers_received_stop_download_errback(self):
crawler = get_crawler(HeadersReceivedErrbackSpider)
yield crawler.crawl(mockserver=self.mockserver)
self.assertIsNone(crawler.spider.meta.get("response"))
self.assertIsInstance(crawler.spider.meta["failure"], Failure)
self.assertIsInstance(crawler.spider.meta["failure"].value, StopDownload)
self.assertIsInstance(crawler.spider.meta["failure"].value.response, Response)
self.assertEqual(
crawler.spider.meta["failure"].value.response.headers,
crawler.spider.meta.get("headers_received"),
)