Unit Test while testing refCount submission

rxjava-core/src/test/java/rx/RefCountTest.java

@@ -0,0 +1,103 @@
+package rx;
+
+import static org.junit.Assert.*;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
+import org.junit.Test;
+
+import rx.concurrency.TestScheduler;
+import rx.util.functions.Action1;
+
+public class RefCountTest {
+
+    @Test
+    public void testRefCount() {
+        TestScheduler s = new TestScheduler();
+        Observable<Long> interval = Observable.interval(100, TimeUnit.MILLISECONDS, s).publish().refCount();
+
+        // subscribe list1
+        final List<Long> list1 = new ArrayList<Long>();
+        Subscription s1 = interval.subscribe(new Action1<Long>() {
+
+            @Override
+            public void call(Long t1) {
+                list1.add(t1);
+            }
+
+        });
+        s.advanceTimeBy(200, TimeUnit.MILLISECONDS);
+
+        assertEquals(2, list1.size());
+        assertEquals(0L, list1.get(0).longValue());
+        assertEquals(1L, list1.get(1).longValue());
+
+        // subscribe list2
+        final List<Long> list2 = new ArrayList<Long>();
+        Subscription s2 = interval.subscribe(new Action1<Long>() {
+
+            @Override
+            public void call(Long t1) {
+                list2.add(t1);
+            }
+
+        });
+        s.advanceTimeBy(300, TimeUnit.MILLISECONDS);
+
+        // list 1 should have 5 items
+        assertEquals(5, list1.size());
+        assertEquals(2L, list1.get(2).longValue());
+        assertEquals(3L, list1.get(3).longValue());
+        assertEquals(4L, list1.get(4).longValue());
+
+        // list 2 should only have 3 items
+        assertEquals(3, list2.size());
+        assertEquals(2L, list2.get(0).longValue());
+        assertEquals(3L, list2.get(1).longValue());
+        assertEquals(4L, list2.get(2).longValue());
+
+        // unsubscribe list1
+        s1.unsubscribe();
+
+        // advance further
+        s.advanceTimeBy(300, TimeUnit.MILLISECONDS);
+
+        // list 1 should still have 5 items
+        assertEquals(5, list1.size());
+
+        // list 2 should have 6 items
+        assertEquals(6, list2.size());
+        assertEquals(5L, list2.get(3).longValue());
+        assertEquals(6L, list2.get(4).longValue());
+        assertEquals(7L, list2.get(5).longValue());
+
+        // unsubscribe list2
+        s2.unsubscribe();
+
+        // advance further
+        s.advanceTimeBy(1000, TimeUnit.MILLISECONDS);
+
+        // the following is not working as it seems the PublishSubject does not allow re-subscribing. TODO fix that in subsequent pull request
+
+
+//        // subscribing a new one should start over because the source should have been unsubscribed
+//        // subscribe list1
+//        final List<Long> list3 = new ArrayList<Long>();
+//        Subscription s3 = interval.subscribe(new Action1<Long>() {
+//
+//            @Override
+//            public void call(Long t1) {
+//                list3.add(t1);
+//            }
+//
+//        });
+//        s.advanceTimeBy(200, TimeUnit.MILLISECONDS);
+//
+//        assertEquals(2, list3.size());
+//        assertEquals(0L, list3.get(0).longValue());
+//        assertEquals(1L, list3.get(1).longValue());
+
+    }
+}