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import sys
import os
import shutil
from zope.interface.verify import verifyObject
from twisted.trial import unittest
# ugly hack to avoid cyclic imports of scrapy.spider when running this test
# alone
from scrapy.interfaces import ISpiderManager
from scrapy.spidermanager import SpiderManager
from scrapy.http import Request
module_dir = os.path.dirname(os.path.abspath(__file__))
class SpiderManagerTest(unittest.TestCase):
def setUp(self):
orig_spiders_dir = os.path.join(module_dir, 'test_spiders')
self.tmpdir = self.mktemp()
os.mkdir(self.tmpdir)
self.spiders_dir = os.path.join(self.tmpdir, 'test_spiders_xxx')
shutil.copytree(orig_spiders_dir, self.spiders_dir)
sys.path.append(self.tmpdir)
self.spiderman = SpiderManager(['test_spiders_xxx'])
def tearDown(self):
del self.spiderman
del sys.modules['test_spiders_xxx']
sys.path.remove(self.tmpdir)
def test_interface(self):
verifyObject(ISpiderManager, self.spiderman)
def test_list(self):
self.assertEqual(set(self.spiderman.list()),
set(['spider1', 'spider2', 'spider3', 'spider4']))
def test_create(self):
spider1 = self.spiderman.create("spider1")
self.assertEqual(spider1.__class__.__name__, 'Spider1')
spider2 = self.spiderman.create("spider2", foo="bar")
self.assertEqual(spider2.__class__.__name__, 'Spider2')
self.assertEqual(spider2.foo, 'bar')
def test_find_by_request(self):
self.assertEqual(self.spiderman.find_by_request(Request('http://scrapy1.org/test')),
['spider1'])
self.assertEqual(self.spiderman.find_by_request(Request('http://scrapy2.org/test')),
['spider2'])
self.assertEqual(set(self.spiderman.find_by_request(Request('http://scrapy3.org/test'))),
set(['spider1', 'spider2']))
self.assertEqual(self.spiderman.find_by_request(Request('http://scrapy999.org/test')),
[])
self.assertEqual(self.spiderman.find_by_request(Request('http://spider3.com')),
[])
self.assertEqual(self.spiderman.find_by_request(Request('http://spider3.com/onlythis')),
['spider3'])
def test_load_spider_module(self):
self.spiderman = SpiderManager(['scrapy.tests.test_spidermanager.test_spiders.spider1'])
assert len(self.spiderman._spiders) == 1
def test_load_base_spider(self):
self.spiderman = SpiderManager(['scrapy.tests.test_spidermanager.test_spiders.spider0'])
assert len(self.spiderman._spiders) == 0
def test_load_from_crawler(self):
spider = self.spiderman.create('spider4', a='OK')
self.assertEqual(spider.a, 'OK')
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