/*
* Copyright (C) 2015 Square, Inc.
*
* 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 com.andiag.retrocache.rxjava2;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TestRule;
import org.reactivestreams.Subscriber;
import org.reactivestreams.Subscription;
import java.util.concurrent.atomic.AtomicReference;
import io.reactivex.Flowable;
import io.reactivex.exceptions.CompositeException;
import io.reactivex.exceptions.Exceptions;
import io.reactivex.functions.Consumer;
import io.reactivex.plugins.RxJavaPlugins;
import okhttp3.mockwebserver.MockResponse;
import okhttp3.mockwebserver.MockWebServer;
import retrofit2.Response;
import retrofit2.Retrofit;
import retrofit2.http.GET;
import static okhttp3.mockwebserver.SocketPolicy.DISCONNECT_AFTER_REQUEST;
import static org.assertj.core.api.Java6Assertions.assertThat;
public final class FlowableThrowingTest {
@Rule public final MockWebServer server = new MockWebServer();
@Rule public final TestRule resetRule = new RxJavaPluginsResetRule();
@Rule public final RecordingSubscriber.Rule subscriberRule = new RecordingSubscriber.Rule();
private Service service;
@Before
public void setUp() {
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(server.url("/"))
.addConverterFactory(new StringConverterFactory())
.addCallAdapterFactory(RxJava2CachedCallAdapterFactory.create(new MockCachingSystem()))
.build();
service = retrofit.create(Service.class);
}
@Test
public void bodyThrowingInOnNextDeliveredToError() {
server.enqueue(new MockResponse());
RecordingSubscriber<String> subscriber = subscriberRule.create();
final RuntimeException e = new RuntimeException();
service.body().safeSubscribe(new ForwardingSubscriber<String>(subscriber) {
@Override
public void onNext(String value) {
throw e;
}
});
subscriber.assertError(e);
}
@Test
public void bodyThrowingInOnCompleteDeliveredToPlugin() {
server.enqueue(new MockResponse());
final AtomicReference<Throwable> throwableRef = new AtomicReference<>();
RxJavaPlugins.setErrorHandler(new Consumer<Throwable>() {
@Override
public void accept(Throwable throwable) throws Exception {
if (!throwableRef.compareAndSet(null, throwable)) {
throw Exceptions.propagate(throwable);
}
}
});
RecordingSubscriber<String> subscriber = subscriberRule.create();
final RuntimeException e = new RuntimeException();
service.body().subscribe(new ForwardingSubscriber<String>(subscriber) {
@Override
public void onComplete() {
throw e;
}
});
subscriber.assertAnyValue();
assertThat(throwableRef.get()).isSameAs(e);
}
@Test
public void bodyThrowingInOnErrorDeliveredToPlugin() {
server.enqueue(new MockResponse().setResponseCode(404));
final AtomicReference<Throwable> throwableRef = new AtomicReference<>();
RxJavaPlugins.setErrorHandler(new Consumer<Throwable>() {
@Override
public void accept(Throwable throwable) throws Exception {
if (!throwableRef.compareAndSet(null, throwable)) {
throw Exceptions.propagate(throwable);
}
}
});
RecordingSubscriber<String> subscriber = subscriberRule.create();
final AtomicReference<Throwable> errorRef = new AtomicReference<>();
final RuntimeException e = new RuntimeException();
service.body().subscribe(new ForwardingSubscriber<String>(subscriber) {
@Override
public void onError(Throwable throwable) {
if (!errorRef.compareAndSet(null, throwable)) {
throw Exceptions.propagate(throwable);
}
throw e;
}
});
//noinspection ThrowableResultOfMethodCallIgnored
CompositeException composite = (CompositeException) throwableRef.get();
assertThat(composite.getExceptions()).containsExactly(errorRef.get(), e);
}
@Test
public void responseThrowingInOnNextDeliveredToError() {
server.enqueue(new MockResponse());
RecordingSubscriber<Response<String>> subscriber = subscriberRule.create();
final RuntimeException e = new RuntimeException();
service.response().safeSubscribe(new ForwardingSubscriber<Response<String>>(subscriber) {
@Override
public void onNext(Response<String> value) {
throw e;
}
});
subscriber.assertError(e);
}
@Test
public void responseThrowingInOnCompleteDeliveredToPlugin() {
server.enqueue(new MockResponse());
final AtomicReference<Throwable> throwableRef = new AtomicReference<>();
RxJavaPlugins.setErrorHandler(new Consumer<Throwable>() {
@Override
public void accept(Throwable throwable) throws Exception {
if (!throwableRef.compareAndSet(null, throwable)) {
throw Exceptions.propagate(throwable);
}
}
});
RecordingSubscriber<Response<String>> subscriber = subscriberRule.create();
final RuntimeException e = new RuntimeException();
service.response().subscribe(new ForwardingSubscriber<Response<String>>(subscriber) {
@Override
public void onComplete() {
throw e;
}
});
subscriber.assertAnyValue();
assertThat(throwableRef.get()).isSameAs(e);
}
@Test
public void responseThrowingInOnErrorDeliveredToPlugin() {
server.enqueue(new MockResponse().setSocketPolicy(DISCONNECT_AFTER_REQUEST));
final AtomicReference<Throwable> throwableRef = new AtomicReference<>();
RxJavaPlugins.setErrorHandler(new Consumer<Throwable>() {
@Override
public void accept(Throwable throwable) throws Exception {
if (!throwableRef.compareAndSet(null, throwable)) {
throw Exceptions.propagate(throwable);
}
}
});
RecordingSubscriber<Response<String>> subscriber = subscriberRule.create();
final AtomicReference<Throwable> errorRef = new AtomicReference<>();
final RuntimeException e = new RuntimeException();
service.response().subscribe(new ForwardingSubscriber<Response<String>>(subscriber) {
@Override
public void onError(Throwable throwable) {
if (!errorRef.compareAndSet(null, throwable)) {
throw Exceptions.propagate(throwable);
}
throw e;
}
});
//noinspection ThrowableResultOfMethodCallIgnored
CompositeException composite = (CompositeException) throwableRef.get();
assertThat(composite.getExceptions()).containsExactly(errorRef.get(), e);
}
@Test
public void resultThrowingInOnNextDeliveredToError() {
server.enqueue(new MockResponse());
RecordingSubscriber<Result<String>> subscriber = subscriberRule.create();
final RuntimeException e = new RuntimeException();
service.result().safeSubscribe(new ForwardingSubscriber<Result<String>>(subscriber) {
@Override
public void onNext(Result<String> value) {
throw e;
}
});
subscriber.assertError(e);
}
@Test
public void resultThrowingInOnCompletedDeliveredToPlugin() {
server.enqueue(new MockResponse());
final AtomicReference<Throwable> throwableRef = new AtomicReference<>();
RxJavaPlugins.setErrorHandler(new Consumer<Throwable>() {
@Override
public void accept(Throwable throwable) throws Exception {
if (!throwableRef.compareAndSet(null, throwable)) {
throw Exceptions.propagate(throwable);
}
}
});
RecordingSubscriber<Result<String>> subscriber = subscriberRule.create();
final RuntimeException e = new RuntimeException();
service.result().subscribe(new ForwardingSubscriber<Result<String>>(subscriber) {
@Override
public void onComplete() {
throw e;
}
});
subscriber.assertAnyValue();
assertThat(throwableRef.get()).isSameAs(e);
}
@Test
public void resultThrowingInOnErrorDeliveredToPlugin() {
server.enqueue(new MockResponse());
final AtomicReference<Throwable> throwableRef = new AtomicReference<>();
RxJavaPlugins.setErrorHandler(new Consumer<Throwable>() {
@Override
public void accept(Throwable throwable) throws Exception {
if (!throwableRef.compareAndSet(null, throwable)) {
throw Exceptions.propagate(throwable);
}
}
});
RecordingSubscriber<Result<String>> subscriber = subscriberRule.create();
final RuntimeException first = new RuntimeException();
final RuntimeException second = new RuntimeException();
service.result().safeSubscribe(new ForwardingSubscriber<Result<String>>(subscriber) {
@Override
public void onNext(Result<String> value) {
// The only way to trigger onError for a result is if onNext throws.
throw first;
}
@Override
public void onError(Throwable throwable) {
throw second;
}
});
//noinspection ThrowableResultOfMethodCallIgnored
CompositeException composite = (CompositeException) throwableRef.get();
assertThat(composite.getExceptions()).containsExactly(first, second);
}
interface Service {
@GET("/")
Flowable<String> body();
@GET("/")
Flowable<Response<String>> response();
@GET("/")
Flowable<Result<String>> result();
}
private static abstract class ForwardingSubscriber<T> implements Subscriber<T> {
private final Subscriber<T> delegate;
ForwardingSubscriber(Subscriber<T> delegate) {
this.delegate = delegate;
}
@Override
public void onSubscribe(Subscription subscription) {
delegate.onSubscribe(subscription);
}
@Override
public void onNext(T value) {
delegate.onNext(value);
}
@Override
public void onError(Throwable throwable) {
delegate.onError(throwable);
}
@Override
public void onComplete() {
delegate.onComplete();
}
}
}
