/**
* Copyright (c) 2016-present, RxJava Contributors.
*
* 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 io.reactivex.internal.operators.maybe;
import static org.junit.Assert.*;
import java.util.List;
import java.util.concurrent.Callable;
import org.junit.Test;
import io.reactivex.*;
import io.reactivex.disposables.*;
import io.reactivex.exceptions.*;
import io.reactivex.functions.*;
import io.reactivex.observers.TestObserver;
import io.reactivex.plugins.RxJavaPlugins;
import io.reactivex.schedulers.Schedulers;
import io.reactivex.subjects.PublishSubject;
public class MaybeUsingTest {
@Test
public void resourceSupplierThrows() {
Maybe.using(new Callable<Object>() {
@Override
public Object call() throws Exception {
throw new TestException();
}
}, new Function<Object, MaybeSource<Integer>>() {
@Override
public MaybeSource<Integer> apply(Object v) throws Exception {
return Maybe.just(1);
}
}, new Consumer<Object>() {
@Override
public void accept(Object d) throws Exception {
}
})
.test()
.assertFailure(TestException.class);
}
@Test
public void errorEager() {
Maybe.using(new Callable<Object>() {
@Override
public Object call() throws Exception {
return 1;
}
}, new Function<Object, MaybeSource<Integer>>() {
@Override
public MaybeSource<Integer> apply(Object v) throws Exception {
return Maybe.error(new TestException());
}
}, new Consumer<Object>() {
@Override
public void accept(Object d) throws Exception {
}
}, true)
.test()
.assertFailure(TestException.class);
}
@Test
public void emptyEager() {
Maybe.using(new Callable<Object>() {
@Override
public Object call() throws Exception {
return 1;
}
}, new Function<Object, MaybeSource<Integer>>() {
@Override
public MaybeSource<Integer> apply(Object v) throws Exception {
return Maybe.empty();
}
}, new Consumer<Object>() {
@Override
public void accept(Object d) throws Exception {
}
}, true)
.test()
.assertResult();
}
@Test
public void errorNonEager() {
Maybe.using(new Callable<Object>() {
@Override
public Object call() throws Exception {
return 1;
}
}, new Function<Object, MaybeSource<Integer>>() {
@Override
public MaybeSource<Integer> apply(Object v) throws Exception {
return Maybe.error(new TestException());
}
}, new Consumer<Object>() {
@Override
public void accept(Object d) throws Exception {
}
}, false)
.test()
.assertFailure(TestException.class);
}
@Test
public void emptyNonEager() {
Maybe.using(new Callable<Object>() {
@Override
public Object call() throws Exception {
return 1;
}
}, new Function<Object, MaybeSource<Integer>>() {
@Override
public MaybeSource<Integer> apply(Object v) throws Exception {
return Maybe.empty();
}
}, new Consumer<Object>() {
@Override
public void accept(Object d) throws Exception {
}
}, false)
.test()
.assertResult();
}
@Test
public void supplierCrashEager() {
Maybe.using(new Callable<Object>() {
@Override
public Object call() throws Exception {
return 1;
}
}, new Function<Object, MaybeSource<Integer>>() {
@Override
public MaybeSource<Integer> apply(Object v) throws Exception {
throw new TestException();
}
}, new Consumer<Object>() {
@Override
public void accept(Object d) throws Exception {
}
}, true)
.test()
.assertFailure(TestException.class);
}
@Test
public void supplierCrashNonEager() {
Maybe.using(new Callable<Object>() {
@Override
public Object call() throws Exception {
return 1;
}
}, new Function<Object, MaybeSource<Integer>>() {
@Override
public MaybeSource<Integer> apply(Object v) throws Exception {
throw new TestException();
}
}, new Consumer<Object>() {
@Override
public void accept(Object d) throws Exception {
}
}, false)
.test()
.assertFailure(TestException.class);
}
@Test
public void supplierAndDisposerCrashEager() {
TestObserver<Integer> to = Maybe.using(new Callable<Object>() {
@Override
public Object call() throws Exception {
return 1;
}
}, new Function<Object, MaybeSource<Integer>>() {
@Override
public MaybeSource<Integer> apply(Object v) throws Exception {
throw new TestException("Main");
}
}, new Consumer<Object>() {
@Override
public void accept(Object d) throws Exception {
throw new TestException("Disposer");
}
}, true)
.test()
.assertFailure(CompositeException.class);
List<Throwable> list = TestHelper.compositeList(to.errors().get(0));
TestHelper.assertError(list, 0, TestException.class, "Main");
TestHelper.assertError(list, 1, TestException.class, "Disposer");
}
@Test
public void supplierAndDisposerCrashNonEager() {
List<Throwable> errors = TestHelper.trackPluginErrors();
try {
Maybe.using(new Callable<Object>() {
@Override
public Object call() throws Exception {
return 1;
}
}, new Function<Object, MaybeSource<Integer>>() {
@Override
public MaybeSource<Integer> apply(Object v) throws Exception {
throw new TestException("Main");
}
}, new Consumer<Object>() {
@Override
public void accept(Object d) throws Exception {
throw new TestException("Disposer");
}
}, false)
.test()
.assertFailureAndMessage(TestException.class, "Main");
TestHelper.assertUndeliverable(errors, 0, TestException.class, "Disposer");
} finally {
RxJavaPlugins.reset();
}
}
@Test
public void dispose() {
final int[] call = {0 };
TestObserver<Integer> to = Maybe.using(new Callable<Object>() {
@Override
public Object call() throws Exception {
return 1;
}
}, new Function<Object, MaybeSource<Integer>>() {
@Override
public MaybeSource<Integer> apply(Object v) throws Exception {
return Maybe.never();
}
}, new Consumer<Object>() {
@Override
public void accept(Object d) throws Exception {
call[0]++;
}
}, false)
.test();
to.cancel();
assertEquals(1, call[0]);
}
@Test
public void disposeCrashes() {
List<Throwable> errors = TestHelper.trackPluginErrors();
try {
TestObserver<Integer> to = Maybe.using(new Callable<Object>() {
@Override
public Object call() throws Exception {
return 1;
}
}, new Function<Object, MaybeSource<Integer>>() {
@Override
public MaybeSource<Integer> apply(Object v) throws Exception {
return Maybe.never();
}
}, new Consumer<Object>() {
@Override
public void accept(Object d) throws Exception {
throw new TestException();
}
}, false)
.test();
to.cancel();
TestHelper.assertUndeliverable(errors, 0, TestException.class);
} finally {
RxJavaPlugins.reset();
}
}
@Test
public void isDisposed() {
TestHelper.checkDisposed(Maybe.using(new Callable<Object>() {
@Override
public Object call() throws Exception {
return 1;
}
}, new Function<Object, MaybeSource<Integer>>() {
@Override
public MaybeSource<Integer> apply(Object v) throws Exception {
return Maybe.never();
}
}, new Consumer<Object>() {
@Override
public void accept(Object d) throws Exception {
}
}, false));
}
@Test
public void justDisposerCrashes() {
Maybe.using(new Callable<Object>() {
@Override
public Object call() throws Exception {
return 1;
}
}, new Function<Object, MaybeSource<Integer>>() {
@Override
public MaybeSource<Integer> apply(Object v) throws Exception {
return Maybe.just(1);
}
}, new Consumer<Object>() {
@Override
public void accept(Object d) throws Exception {
throw new TestException("Disposer");
}
}, true)
.test()
.assertFailure(TestException.class);
}
@Test
public void emptyDisposerCrashes() {
Maybe.using(new Callable<Object>() {
@Override
public Object call() throws Exception {
return 1;
}
}, new Function<Object, MaybeSource<Integer>>() {
@Override
public MaybeSource<Integer> apply(Object v) throws Exception {
return Maybe.empty();
}
}, new Consumer<Object>() {
@Override
public void accept(Object d) throws Exception {
throw new TestException("Disposer");
}
}, true)
.test()
.assertFailure(TestException.class);
}
@Test
public void errorDisposerCrash() {
TestObserver<Integer> to = Maybe.using(new Callable<Object>() {
@Override
public Object call() throws Exception {
return 1;
}
}, new Function<Object, MaybeSource<Integer>>() {
@Override
public MaybeSource<Integer> apply(Object v) throws Exception {
return Maybe.error(new TestException("Main"));
}
}, new Consumer<Object>() {
@Override
public void accept(Object d) throws Exception {
throw new TestException("Disposer");
}
}, true)
.test()
.assertFailure(CompositeException.class);
List<Throwable> list = TestHelper.compositeList(to.errors().get(0));
TestHelper.assertError(list, 0, TestException.class, "Main");
TestHelper.assertError(list, 1, TestException.class, "Disposer");
}
@Test
public void doubleOnSubscribe() {
List<Throwable> errors = TestHelper.trackPluginErrors();
try {
Maybe.using(new Callable<Object>() {
@Override
public Object call() throws Exception {
return 1;
}
}, new Function<Object, MaybeSource<Integer>>() {
@Override
public MaybeSource<Integer> apply(Object v) throws Exception {
return Maybe.wrap(new MaybeSource<Integer>() {
@Override
public void subscribe(MaybeObserver<? super Integer> s) {
Disposable d1 = Disposables.empty();
s.onSubscribe(d1);
Disposable d2 = Disposables.empty();
s.onSubscribe(d2);
assertFalse(d1.isDisposed());
assertTrue(d2.isDisposed());
}
});
}
}, new Consumer<Object>() {
@Override
public void accept(Object d) throws Exception {
}
}, false).test();
TestHelper.assertError(errors, 0, IllegalStateException.class, "Disposable already set!");
} finally {
RxJavaPlugins.reset();
}
}
@Test
public void successDisposeRace() {
for (int i = 0; i < 500; i++) {
final PublishSubject<Integer> ps = PublishSubject.create();
final TestObserver<Integer> to = Maybe.using(new Callable<Object>() {
@Override
public Object call() throws Exception {
return 1;
}
}, new Function<Object, MaybeSource<Integer>>() {
@Override
public MaybeSource<Integer> apply(Object v) throws Exception {
return ps.lastElement();
}
}, new Consumer<Object>() {
@Override
public void accept(Object d) throws Exception {
}
}, true)
.test();
ps.onNext(1);
Runnable r1 = new Runnable() {
@Override
public void run() {
to.cancel();
}
};
Runnable r2 = new Runnable() {
@Override
public void run() {
ps.onComplete();
}
};
TestHelper.race(r1, r2, Schedulers.single());
}
}
@Test
public void errorDisposeRace() {
for (int i = 0; i < 500; i++) {
final PublishSubject<Integer> ps = PublishSubject.create();
final TestObserver<Integer> to = Maybe.using(new Callable<Object>() {
@Override
public Object call() throws Exception {
return 1;
}
}, new Function<Object, MaybeSource<Integer>>() {
@Override
public MaybeSource<Integer> apply(Object v) throws Exception {
return ps.firstElement();
}
}, new Consumer<Object>() {
@Override
public void accept(Object d) throws Exception {
}
}, true)
.test();
final TestException ex = new TestException();
Runnable r1 = new Runnable() {
@Override
public void run() {
to.cancel();
}
};
Runnable r2 = new Runnable() {
@Override
public void run() {
ps.onError(ex);
}
};
TestHelper.race(r1, r2, Schedulers.single());
}
}
@Test
public void emptyDisposeRace() {
for (int i = 0; i < 500; i++) {
final PublishSubject<Integer> ps = PublishSubject.create();
final TestObserver<Integer> to = Maybe.using(new Callable<Object>() {
@Override
public Object call() throws Exception {
return 1;
}
}, new Function<Object, MaybeSource<Integer>>() {
@Override
public MaybeSource<Integer> apply(Object v) throws Exception {
return ps.firstElement();
}
}, new Consumer<Object>() {
@Override
public void accept(Object d) throws Exception {
}
}, true)
.test();
Runnable r1 = new Runnable() {
@Override
public void run() {
to.cancel();
}
};
Runnable r2 = new Runnable() {
@Override
public void run() {
ps.onComplete();
}
};
TestHelper.race(r1, r2, Schedulers.single());
}
}
}