/*
* 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.Ignore;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TestRule;
import java.util.concurrent.atomic.AtomicReference;
import io.reactivex.Maybe;
import io.reactivex.MaybeObserver;
import io.reactivex.disposables.Disposable;
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 MaybeThrowingTest {
@Rule public final MockWebServer server = new MockWebServer();
@Rule public final TestRule resetRule = new RxJavaPluginsResetRule();
@Rule public final RecordingMaybeObserver.Rule subscriberRule = new RecordingMaybeObserver.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 bodyThrowingInOnSuccessDeliveredToPlugin() {
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);
}
}
});
RecordingMaybeObserver<String> observer = subscriberRule.create();
final RuntimeException e = new RuntimeException();
service.body().subscribe(new ForwardingObserver<String>(observer) {
@Override
public void onSuccess(String value) {
throw e;
}
});
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);
}
}
});
RecordingMaybeObserver<String> observer = subscriberRule.create();
final AtomicReference<Throwable> errorRef = new AtomicReference<>();
final RuntimeException e = new RuntimeException();
service.body().subscribe(new ForwardingObserver<String>(observer) {
@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 responseThrowingInOnSuccessDeliveredToPlugin() {
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);
}
}
});
RecordingMaybeObserver<Response<String>> observer = subscriberRule.create();
final RuntimeException e = new RuntimeException();
service.response().subscribe(new ForwardingObserver<Response<String>>(observer) {
@Override
public void onSuccess(Response<String> value) {
throw e;
}
});
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);
}
}
});
RecordingMaybeObserver<Response<String>> observer = subscriberRule.create();
final AtomicReference<Throwable> errorRef = new AtomicReference<>();
final RuntimeException e = new RuntimeException();
service.response().subscribe(new ForwardingObserver<Response<String>>(observer) {
@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 resultThrowingInOnSuccessDeliveredToPlugin() {
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);
}
}
});
RecordingMaybeObserver<Result<String>> observer = subscriberRule.create();
final RuntimeException e = new RuntimeException();
service.result().subscribe(new ForwardingObserver<Result<String>>(observer) {
@Override
public void onSuccess(Result<String> value) {
throw e;
}
});
assertThat(throwableRef.get()).isSameAs(e);
}
@Ignore("Single's contract is onNext|onError so we have no way of triggering this case")
@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);
}
}
});
RecordingMaybeObserver<Result<String>> observer = subscriberRule.create();
final RuntimeException first = new RuntimeException();
final RuntimeException second = new RuntimeException();
service.result().subscribe(new ForwardingObserver<Result<String>>(observer) {
@Override
public void onSuccess(Result<String> value) {
// The only way to trigger onError for Result is if onSuccess 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("/")
Maybe<String> body();
@GET("/")
Maybe<Response<String>> response();
@GET("/")
Maybe<Result<String>> result();
}
private static abstract class ForwardingObserver<T> implements MaybeObserver<T> {
private final MaybeObserver<T> delegate;
ForwardingObserver(MaybeObserver<T> delegate) {
this.delegate = delegate;
}
@Override
public void onSubscribe(Disposable disposable) {
delegate.onSubscribe(disposable);
}
@Override
public void onSuccess(T value) {
delegate.onSuccess(value);
}
@Override
public void onError(Throwable throwable) {
delegate.onError(throwable);
}
@Override
public void onComplete() {
delegate.onComplete();
}
}
}
