Add test for direct creation of dupefilter (no from_crawler/from_settings)
Add test for direct creation of dupefilter (no from_crawler/from_settings)

pablohoffman/scrapy,starrify/scrapy,ArturGaspar/scrapy,eLRuLL/scrapy,pablohoffman/scrapy,dangra/scrapy,elacuesta/scrapy,finfish/scrapy,starrify/scrapy,pawelmhm/scrapy,ArturGaspar/scrapy,finfish/scrapy,scrapy/scrapy,kmike/scrapy,finfish/scrapy,elacuesta/scrapy,starrify/scrapy,Ryezhang/scrapy,kmike/scrapy,wujuguang/scrapy,elacuesta/scrapy,dangra/scrapy,wujuguang/scrapy,Ryezhang/scrapy,eLRuLL/scrapy,pawelmhm/scrapy,pawelmhm/scrapy,dangra/scrapy,wujuguang/scrapy,Ryezhang/scrapy,scrapy/scrapy,scrapy/scrapy,eLRuLL/scrapy,pablohoffman/scrapy,kmike/scrapy,ArturGaspar/scrapy