/*
* Copyright (c) 2011-2016 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
*
* http://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 java.util.concurrent.atomic.AtomicInteger;
import org.junit.Test;
import reactor.test.subscriber.AssertSubscriber;
public class MonoDeferComposeTest {
@Test
public void perTrackable() {
Mono<Integer> source = Mono.just(10).compose(f -> {
AtomicInteger value = new AtomicInteger();
return f.map(v -> v + value.incrementAndGet());
});
for (int i = 0; i < 10; i++) {
AssertSubscriber<Integer> ts = AssertSubscriber.create();
source.subscribe(ts);
ts.assertValues(11)
.assertComplete()
.assertNoError();
}
}
@Test
public void composerThrows() {
Mono<Integer> source = Mono.just(10).compose(f -> {
throw new RuntimeException("Forced failure");
});
for (int i = 0; i < 10; i++) {
AssertSubscriber<Integer> ts = AssertSubscriber.create();
source.subscribe(ts);
ts.assertNoValues()
.assertNotComplete()
.assertError(RuntimeException.class);
}
}
@Test
public void composerReturnsNull() {
Mono<Integer> source = Mono.just(10).compose(f -> {
return null;
});
for (int i = 0; i < 10; i++) {
AssertSubscriber<Integer> ts = AssertSubscriber.create();
source.subscribe(ts);
ts.assertNoValues()
.assertNotComplete()
.assertError(NullPointerException.class);
}
}
}