Adapt S3FeedStorage testcase
Adapt S3FeedStorage testcase

pawelmhm/scrapy,dangra/scrapy,starrify/scrapy,starrify/scrapy,dangra/scrapy,elacuesta/scrapy,dangra/scrapy,pablohoffman/scrapy,elacuesta/scrapy,elacuesta/scrapy,pablohoffman/scrapy,scrapy/scrapy,pawelmhm/scrapy,scrapy/scrapy,pawelmhm/scrapy,pablohoffman/scrapy,scrapy/scrapy,starrify/scrapy