@Test public void testRequestFromDecoupledOperatorThatRequestsN() { Subscriber<String> s = new TestSubscriber<String>(); final AtomicLong innerR = new AtomicLong(); Operator<String, String> o = new Operator<String, String>() { @Override public Subscriber<? super String> call(Subscriber<? super String> child) { // we want to decouple the chain so set our own Producer on the child instead of it // coming from the parent child.setProducer( new Producer() { @Override public void request(long n) { innerR.set(n); } }); Subscriber<String> as = new Subscriber<String>() { @Override public void onCompleted() {} @Override public void onError(Throwable e) {} @Override public void onNext(String t) {} }; // we request 99 up to the parent as.request(99); return as; } }; s.request(10); Subscriber<? super String> ns = o.call(s); final AtomicLong r = new AtomicLong(); // set set the producer at the top of the chain (ns) and it should flow through the operator to // the (s) subscriber // and then it should request up with the value set on the final Subscriber (s) ns.setProducer( new Producer() { @Override public void request(long n) { r.set(n); } }); assertEquals(99, r.get()); assertEquals(10, innerR.get()); }
@Test public void testRequestFromDecoupledOperator() { Subscriber<String> s = new TestSubscriber<String>(); Operator<String, String> o = new Operator<String, String>() { @Override public Subscriber<? super String> call(Subscriber<? super String> s) { return new Subscriber<String>() { @Override public void onCompleted() {} @Override public void onError(Throwable e) {} @Override public void onNext(String t) {} }; } }; s.request(10); Subscriber<? super String> ns = o.call(s); final AtomicLong r = new AtomicLong(); // set set the producer at the top of the chain (ns) and it should flow through the operator to // the (s) subscriber // and then it should request up with the value set on the final Subscriber (s) ns.setProducer( new Producer() { @Override public void request(long n) { r.set(n); } }); // this will be Long.MAX_VALUE because it is decoupled and nothing requested on the Operator // subscriber assertEquals(Long.MAX_VALUE, r.get()); }