Fix error when running `scrapy bench` (#6633)

scrapy/commands/bench.py

@@ -67,6 +67,6 @@ class _BenchSpider(scrapy.Spider):
         return [scrapy.Request(url, dont_filter=True)]
 
     def parse(self, response: Response) -> Any:
-        assert isinstance(Response, TextResponse)
+        assert isinstance(response, TextResponse)
         for link in self.link_extractor.extract_links(response):
             yield scrapy.Request(link.url, callback=self.parse)

tests/test_commands.py

@@ -1034,6 +1034,7 @@ class BenchCommandTest(CommandTest):
         )
         self.assertIn("INFO: Crawled", log)
         self.assertNotIn("Unhandled Error", log)
+        self.assertNotIn("log_count/ERROR", log)
 
 
 class ViewCommandTest(CommandTest):