Add CrawlerProcess tests for ASYNCIO_ENABLED.

tests/CrawlerProcess/asyncio_enabled_no_reactor.py

@@ -0,0 +1,17 @@
+import scrapy
+from scrapy.crawler import CrawlerProcess
+
+
+class NoRequestsSpider(scrapy.Spider):
+    name = 'no_request'
+
+    def start_requests(self):
+        return []
+
+
+process = CrawlerProcess(settings={
+    'ASYNCIO_ENABLED': True,
+})
+
+process.crawl(NoRequestsSpider)
+process.start()

tests/CrawlerProcess/asyncio_enabled_reactor.py

@@ -0,0 +1,22 @@
+import asyncio
+
+from twisted.internet import asyncioreactor
+asyncioreactor.install(asyncio.get_event_loop())
+
+import scrapy
+from scrapy.crawler import CrawlerProcess
+
+
+class NoRequestsSpider(scrapy.Spider):
+    name = 'no_request'
+
+    def start_requests(self):
+        return []
+
+
+process = CrawlerProcess(settings={
+    'ASYNCIO_ENABLED': True,
+})
+
+process.crawl(NoRequestsSpider)
+process.start()

tests/test_crawler.py

@@ -301,3 +301,14 @@ class CrawlerProcessSubprocess(unittest.TestCase):
     def test_simple(self):
         log = self.run_script('simple.py')
         self.assertIn('Spider closed (finished)', log)
+        self.assertNotIn("DEBUG: Asyncio support enabled", log)
+
+    def test_asyncio_enabled_no_reactor(self):
+        log = self.run_script('asyncio_enabled_no_reactor.py')
+        self.assertIn('Spider closed (finished)', log)
+        self.assertIn("DEBUG: Asyncio support enabled", log)
+
+    def test_asyncio_enabled_reactor(self):
+        log = self.run_script('asyncio_enabled_reactor.py')
+        self.assertIn('Spider closed (finished)', log)
+        self.assertIn("DEBUG: Asyncio support enabled", log)