Merge pull request #7 from zsxwing/subscribeOn+groupBy

Add timeout to CoundDownLatch, ignore InterruptException and fix the tes...

Author: benjchristensen

rxjava-core/src/test/java/rx/operators/OperatorTimeoutWithSelectorTest.java

@@ -15,12 +15,20 @@
  */
 package rx.operators;
 
-import static org.mockito.Matchers.*;
-import static org.mockito.Mockito.*;
+import static org.junit.Assert.assertFalse;
+import static org.mockito.Matchers.any;
+import static org.mockito.Matchers.isA;
+import static org.mockito.Mockito.doAnswer;
+import static org.mockito.Mockito.inOrder;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
 
 import java.util.Arrays;
 import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
+import java.util.concurrent.atomic.AtomicBoolean;
 
 import org.junit.Test;
 import org.mockito.InOrder;
@@ -30,6 +38,7 @@
 import rx.Observable;
 import rx.Observable.OnSubscribe;
 import rx.Observer;
+import rx.Scheduler;
 import rx.Subscriber;
 import rx.observers.TestSubscriber;
 import rx.schedulers.Schedulers;
@@ -329,6 +338,8 @@ public void testTimeoutSelectorWithTimeoutAndOnNextRaceCondition() throws Interr
         final CountDownLatch observerReceivedTwo = new CountDownLatch(1);
         final CountDownLatch timeoutEmittedOne = new CountDownLatch(1);
         final CountDownLatch observerCompleted = new CountDownLatch(1);
+        final CountDownLatch enteredTimeoutOne = new CountDownLatch(1);
+        final AtomicBoolean latchTimeout = new AtomicBoolean(false);
 
         final Func1<Integer, Observable<Integer>> timeoutFunc = new Func1<Integer, Observable<Integer>>() {
             @Override
@@ -338,31 +349,23 @@ public Observable<Integer> call(Integer t1) {
                     return Observable.create(new OnSubscribe<Integer>() {
                         @Override
                         public void call(Subscriber<? super Integer> subscriber) {
-                            subscriber.add(Subscriptions.create(new Action0() {
-                                @Override
-                                public void call() {
-                                    try {
-                                        // emulate "unsubscribe" is busy and finishes after timeout.onNext(1)
-                                        timeoutEmittedOne.await();
-                                    } catch (InterruptedException e) {
-                                        // if we are interrupted then we complete (as this can happen when unsubscribed)
-                                        observerCompleted.countDown();
-                                        e.printStackTrace();
+                            enteredTimeoutOne.countDown();
+                            // force the timeout message be sent after observer.onNext(2)
+                            while (true) {
+                                try {
+                                    if (!observerReceivedTwo.await(30, TimeUnit.SECONDS)) {
+                                        // CountDownLatch timeout
+                                        // There should be something wrong
+                                        latchTimeout.set(true);
                                     }
+                                    break;
+                                } catch (InterruptedException e) {
+                                    // Since we just want to emulate a busy method,
+                                    // we ignore the interrupt signal from Scheduler.
                                 }
-                            }));
-                            // force the timeout message be sent after observer.onNext(2)
-                            try {
-                                observerReceivedTwo.await();
-                            } catch (InterruptedException e) {
-                                // if we are interrupted then we complete (as this can happen when unsubscribed)
-                                observerCompleted.countDown();
-                                e.printStackTrace();
-                            }
-                            if (!subscriber.isUnsubscribed()) {
-                                subscriber.onNext(1);
-                                timeoutEmittedOne.countDown();
                             }
+                            subscriber.onNext(1);
+                            timeoutEmittedOne.countDown();
                         }
                     }).subscribeOn(Schedulers.newThread());
                 } else {
@@ -401,9 +404,18 @@ public void run() {
                 PublishSubject<Integer> source = PublishSubject.create();
                 source.timeout(timeoutFunc, Observable.from(3)).subscribe(ts);
                 source.onNext(1); // start timeout
+                try {
+                    if(!enteredTimeoutOne.await(30, TimeUnit.SECONDS)) {
+                        latchTimeout.set(true);
+                    }
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
                 source.onNext(2); // disable timeout
                 try {
-                    timeoutEmittedOne.await();
+                    if(!timeoutEmittedOne.await(30, TimeUnit.SECONDS)) {
+                        latchTimeout.set(true);
+                    }
                 } catch (InterruptedException e) {
                     e.printStackTrace();
                 }
@@ -412,7 +424,11 @@ public void run() {
 
         }).start();
 
-        observerCompleted.await();
+        if(!observerCompleted.await(30, TimeUnit.SECONDS)) {
+            latchTimeout.set(true);
+        }
+
+        assertFalse("CoundDownLatch timeout", latchTimeout.get());
 
         InOrder inOrder = inOrder(o);
         inOrder.verify(o).onNext(1);