test very short timeouts

which should be guaranteed to fire while the task is pending

IPython/parallel/tests/test_lbview.py

@@ -156,16 +156,24 b' class TestLoadBalancedView(ClusterTestCase):'
 
     def test_retries(self):
         view = self.view
-        view.timeout = 1 # prevent hang if this doesn't behave
         def fail():
             assert False
         for r in range(len(self.client)-1):
             with view.temp_flags(retries=r):
                 self.assertRaisesRemote(AssertionError, view.apply_sync, fail)
 
-        with view.temp_flags(retries=len(self.client), timeout=0.25):
+        with view.temp_flags(retries=len(self.client), timeout=0.1):
             self.assertRaisesRemote(error.TaskTimeout, view.apply_sync, fail)
 
+    def test_short_timeout(self):
+        view = self.view
+        def fail():
+            import time
+            time.sleep(0.25)
+            assert False
+        with view.temp_flags(retries=1, timeout=0.01):
+            self.assertRaisesRemote(AssertionError, view.apply_sync, fail)
+
     def test_invalid_dependency(self):
         view = self.view
         with view.temp_flags(after='12345'):