reduce probability of ExecutorSchedulerTest.testOnBackpressureDrop failing on slow machine

Author: davidmoten

src/test/java/rx/schedulers/ExecutorSchedulerTest.java

@@ -177,11 +177,11 @@ public void execute(Runnable command) {
         };
         ExecutorSchedulerWorker w = (ExecutorSchedulerWorker)Schedulers.from(e).createWorker();
 
-        w.schedule(Actions.empty(), 1, TimeUnit.MILLISECONDS);
+        w.schedule(Actions.empty(), 50, TimeUnit.MILLISECONDS);
 
         assertTrue(w.tasks.hasSubscriptions());
 
-        Thread.sleep(100);
+        Thread.sleep(150);
 
         assertFalse(w.tasks.hasSubscriptions());
     }