/**
* Copyright 2014 Netflix, 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 rx.exceptions;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import org.junit.Test;
import rx.Observable;
import rx.Observer;
import rx.functions.Action1;
import rx.subjects.PublishSubject;
public class ExceptionsTest {
@Test(expected = OnErrorNotImplementedException.class)
public void testOnErrorNotImplementedIsThrown() {
Observable.just(1, 2, 3).subscribe(new Action1<Integer>() {
@Override
public void call(Integer t1) {
throw new RuntimeException("hello");
}
});
}
@Test(expected = StackOverflowError.class)
public void testStackOverflowIsThrown() {
final PublishSubject<Integer> a = PublishSubject.create();
final PublishSubject<Integer> b = PublishSubject.create();
new Observer<Integer>() {
@Override
public void onCompleted() {
}
@Override
public void onError(Throwable e) {
e.printStackTrace();
}
@Override
public void onNext(Integer args) {
System.out.println(args);
}
};
a.subscribe(new Observer<Integer>() {
@Override
public void onCompleted() {
}
@Override
public void onError(Throwable e) {
e.printStackTrace();
}
@Override
public void onNext(Integer args) {
System.out.println(args);
}
});
b.subscribe();
a.subscribe(new Observer<Integer>() {
@Override
public void onCompleted() {
}
@Override
public void onError(Throwable e) {
e.printStackTrace();
}
@Override
public void onNext(Integer args) {
b.onNext(args + 1);
}
});
b.subscribe(new Observer<Integer>() {
@Override
public void onCompleted() {
}
@Override
public void onError(Throwable e) {
e.printStackTrace();
}
@Override
public void onNext(Integer args) {
a.onNext(args + 1);
}
});
a.onNext(1);
}
@Test(expected = ThreadDeath.class)
public void testThreadDeathIsThrown() {
Observable.just(1).subscribe(new Observer<Integer>() {
@Override
public void onCompleted() {
}
@Override
public void onError(Throwable e) {
e.printStackTrace();
}
@Override
public void onNext(Integer t) {
throw new ThreadDeath();
}
});
}
/**
* https://github.com/ReactiveX/RxJava/issues/969
*/
@Test
public void testOnErrorExceptionIsThrown() {
try {
Observable.error(new IllegalArgumentException("original exception")).subscribe(new Observer<Object>() {
@Override
public void onCompleted() {
}
@Override
public void onError(Throwable e) {
throw new IllegalStateException("This should be thrown");
}
@Override
public void onNext(Object o) {
}
});
fail("expecting an exception to be thrown");
} catch (CompositeException t) {
assertTrue(t.getExceptions().get(0) instanceof IllegalArgumentException);
assertTrue(t.getExceptions().get(1) instanceof IllegalStateException);
}
}
}