Fix the test_docker.AsyncTest.test_does_not_timeout unittest

beat/core/test/test_docker.py

@@ -111,7 +111,7 @@ class AsyncTest(unittest.TestCase):
 
     sleep_for = 0.5 # seconds
     with Popen(self.host, 'debian:8.4', ["sleep", str(sleep_for)]) as p:
-      status = p.wait(1) #should not timeout
+      status = p.wait(5) #should not timeout
       self.assertEqual(p.status(), 'exited')
       self.assertEqual(status, 0)
       self.assertEqual(p.stdout, '')