/* * Copyright (c) 2011-2017 Pivotal Software Inc, All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * https://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package reactor.core.publisher; import org.junit.Test; import org.reactivestreams.Subscription; import reactor.core.CoreSubscriber; import reactor.core.Scannable; import reactor.test.publisher.TestPublisher; import reactor.test.subscriber.AssertSubscriber; import static org.assertj.core.api.Assertions.assertThat; public class MonoNextTest { @Test public void normal() { Flux.range(1, 1_000_000) .next() .subscribeWith(AssertSubscriber.create()) .assertValues(1) .assertComplete(); } @Test public void normalBackpressured() { AssertSubscriber<Integer> ts = AssertSubscriber.create(0); Flux.range(1, 1_000_000) .next() .subscribeWith(ts) .assertNoValues() .assertNotComplete(); ts.request(1); ts.assertValues(1) .assertComplete(); } @Test public void cancel() { TestPublisher<String> cancelTester = TestPublisher.create(); MonoProcessor<String> processor = cancelTester.flux() .next() .toProcessor(); processor.subscribe(); processor.cancel(); cancelTester.assertCancelled(); } @Test public void scanSubscriber() { CoreSubscriber<String> actual = new LambdaMonoSubscriber<>(null, e -> {}, null, null); MonoNext.NextSubscriber<String> test = new MonoNext.NextSubscriber<>(actual); Subscription parent = Operators.emptySubscription(); test.onSubscribe(parent); assertThat(test.scan(Scannable.Attr.PARENT)).isSameAs(parent); assertThat(test.scan(Scannable.Attr.ACTUAL)).isSameAs(actual); assertThat(test.scan(Scannable.Attr.TERMINATED)).isFalse(); test.onError(new IllegalStateException("boom")); assertThat(test.scan(Scannable.Attr.TERMINATED)).isTrue(); } }