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/*
* Copyright (C) 2015 The Dagger Authors.
*
* 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 dagger.functional.producers;
import static com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.fail;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.inOrder;
import static org.mockito.Mockito.when;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.MoreExecutors;
import com.google.common.util.concurrent.SettableFuture;
import dagger.producers.Producer;
import dagger.producers.internal.AbstractProducer;
import dagger.producers.internal.CancellableProducer;
import dagger.producers.monitoring.ProducerMonitor;
import dagger.producers.monitoring.ProducerToken;
import dagger.producers.monitoring.ProductionComponentMonitor;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executor;
import javax.inject.Provider;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import org.mockito.InOrder;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.MockitoAnnotations;
@RunWith(JUnit4.class)
public class ProducerFactoryTest {
@Mock private ProductionComponentMonitor componentMonitor;
private ProducerMonitor monitor;
private Provider<Executor> executorProvider;
private Provider<ProductionComponentMonitor> componentMonitorProvider;
@Before
public void setUpMocks() {
MockitoAnnotations.initMocks(this);
monitor = Mockito.mock(ProducerMonitor.class, Mockito.CALLS_REAL_METHODS);
when(componentMonitor.producerMonitorFor(any(ProducerToken.class))).thenReturn(monitor);
// TODO(beder): Use Providers.of when available.
executorProvider =
new Provider<Executor>() {
@Override
public Executor get() {
return MoreExecutors.directExecutor();
}
};
componentMonitorProvider =
new Provider<ProductionComponentMonitor>() {
@Override
public ProductionComponentMonitor get() {
return componentMonitor;
}
};
}
@Test
public void noArgMethod() throws Exception {
ProducerToken token = ProducerToken.create(SimpleProducerModule_StrFactory.class);
Producer<String> producer =
SimpleProducerModule_StrFactory.create(executorProvider, componentMonitorProvider);
assertThat(producer.get().get()).isEqualTo("str");
InOrder order = inOrder(componentMonitor, monitor);
order.verify(componentMonitor).producerMonitorFor(token);
order.verify(monitor).methodStarting();
order.verify(monitor).methodFinished();
order.verify(monitor).succeeded("str");
order.verifyNoMoreInteractions();
}
@Test
public void singleArgMethod() throws Exception {
SettableFuture<Integer> intFuture = SettableFuture.create();
CancellableProducer<Integer> intProducer = producerOfFuture(intFuture);
Producer<String> producer =
SimpleProducerModule_StrWithArgFactory.create(
executorProvider, componentMonitorProvider, intProducer);
assertThat(producer.get().isDone()).isFalse();
intFuture.set(42);
assertThat(producer.get().get()).isEqualTo("str with arg");
}
@Test
public void successMonitor() throws Exception {
ProducerToken token = ProducerToken.create(SimpleProducerModule_SettableFutureStrFactory.class);
SettableFuture<String> strFuture = SettableFuture.create();
@SuppressWarnings("FutureReturnValueIgnored")
SettableFuture<SettableFuture<String>> strFutureFuture = SettableFuture.create();
CancellableProducer<SettableFuture<String>> strFutureProducer =
producerOfFuture(strFutureFuture);
Producer<String> producer =
SimpleProducerModule_SettableFutureStrFactory.create(
executorProvider, componentMonitorProvider, strFutureProducer);
assertThat(producer.get().isDone()).isFalse();
InOrder order = inOrder(componentMonitor, monitor);
order.verify(componentMonitor).producerMonitorFor(token);
strFutureFuture.set(strFuture);
order.verify(monitor).methodStarting();
order.verify(monitor).methodFinished();
assertThat(producer.get().isDone()).isFalse();
strFuture.set("monkey");
assertThat(producer.get().get()).isEqualTo("monkey");
order.verify(monitor).succeeded("monkey");
order.verifyNoMoreInteractions();
}
@Test
public void failureMonitor() throws Exception {
ProducerToken token = ProducerToken.create(SimpleProducerModule_SettableFutureStrFactory.class);
SettableFuture<String> strFuture = SettableFuture.create();
@SuppressWarnings("FutureReturnValueIgnored")
SettableFuture<SettableFuture<String>> strFutureFuture = SettableFuture.create();
CancellableProducer<SettableFuture<String>> strFutureProducer =
producerOfFuture(strFutureFuture);
Producer<String> producer =
SimpleProducerModule_SettableFutureStrFactory.create(
executorProvider, componentMonitorProvider, strFutureProducer);
assertThat(producer.get().isDone()).isFalse();
InOrder order = inOrder(componentMonitor, monitor);
order.verify(componentMonitor).producerMonitorFor(token);
strFutureFuture.set(strFuture);
order.verify(monitor).methodStarting();
order.verify(monitor).methodFinished();
assertThat(producer.get().isDone()).isFalse();
Throwable t = new RuntimeException("monkey");
strFuture.setException(t);
try {
producer.get().get();
fail();
} catch (ExecutionException e) {
assertThat(e).hasCauseThat().isSameInstanceAs(t);
order.verify(monitor).failed(t);
}
order.verifyNoMoreInteractions();
}
@Test
public void failureMonitorDueToThrowingProducer() throws Exception {
ProducerToken token = ProducerToken.create(SimpleProducerModule_ThrowingProducerFactory.class);
Producer<String> producer =
SimpleProducerModule_ThrowingProducerFactory.create(
executorProvider, componentMonitorProvider);
assertThat(producer.get().isDone()).isTrue();
InOrder order = inOrder(componentMonitor, monitor);
order.verify(componentMonitor).producerMonitorFor(token);
order.verify(monitor).methodStarting();
order.verify(monitor).methodFinished();
try {
producer.get().get();
fail();
} catch (ExecutionException e) {
order.verify(monitor).failed(e.getCause());
}
order.verifyNoMoreInteractions();
}
@Test(expected = NullPointerException.class)
public void nullComponentMonitorProvider() throws Exception {
SimpleProducerModule_StrFactory.create(executorProvider, null);
}
private static <T> CancellableProducer<T> producerOfFuture(final ListenableFuture<T> future) {
return new AbstractProducer<T>() {
@Override
public ListenableFuture<T> compute() {
return future;
}
};
}
}
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