| /* |
| * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @summary Basic test for the standard BodySubscribers default behavior |
| * @bug 8225583 |
| * @run testng BodySubscribersTest |
| */ |
| |
| import java.net.http.HttpResponse.BodySubscriber; |
| import java.nio.ByteBuffer; |
| import java.nio.file.Path; |
| import java.util.List; |
| import java.util.concurrent.Flow; |
| import java.util.function.Supplier; |
| import org.testng.annotations.DataProvider; |
| import org.testng.annotations.Test; |
| import static java.lang.System.out; |
| import static java.net.http.HttpResponse.BodySubscribers.*; |
| import static java.nio.charset.StandardCharsets.UTF_8; |
| import static java.nio.file.StandardOpenOption.CREATE; |
| import static org.testng.Assert.assertTrue; |
| import static org.testng.Assert.assertNotNull; |
| import static org.testng.Assert.expectThrows; |
| import static org.testng.Assert.fail; |
| |
| public class BodySubscribersTest { |
| |
| static final Class<NullPointerException> NPE = NullPointerException.class; |
| |
| // Supplier of BodySubscriber<?>, with a descriptive name |
| static class BSSupplier implements Supplier<BodySubscriber<?>> { |
| private final Supplier<BodySubscriber<?>> supplier; |
| private final String name; |
| private BSSupplier(Supplier<BodySubscriber<?>> supplier, String name) { |
| this.supplier = supplier; |
| this.name = name; |
| } |
| static BSSupplier create(String name, Supplier<BodySubscriber<?>> supplier) { |
| return new BSSupplier(supplier, name); |
| } |
| @Override public BodySubscriber<?> get() { return supplier.get(); } |
| @Override public String toString() { return name; } |
| } |
| |
| static class LineSubscriber implements Flow.Subscriber<String> { |
| @Override public void onSubscribe(Flow.Subscription subscription) { } |
| @Override public void onNext(String item) { fail(); } |
| @Override public void onError(Throwable throwable) { fail(); } |
| @Override public void onComplete() { fail(); } |
| } |
| |
| static class BBSubscriber implements Flow.Subscriber<List<ByteBuffer>> { |
| @Override public void onSubscribe(Flow.Subscription subscription) { } |
| @Override public void onNext(List<ByteBuffer> item) { fail(); } |
| @Override public void onError(Throwable throwable) { fail(); } |
| @Override public void onComplete() { fail(); } |
| } |
| |
| @DataProvider(name = "bodySubscriberSuppliers") |
| public Object[][] bodySubscriberSuppliers() { ; |
| List<Supplier<BodySubscriber<?>>> list = List.of( |
| BSSupplier.create("ofByteArray", () -> ofByteArray()), |
| BSSupplier.create("ofInputStream", () -> ofInputStream()), |
| BSSupplier.create("ofBAConsumer", () -> ofByteArrayConsumer(ba -> { })), |
| BSSupplier.create("ofLines", () -> ofLines(UTF_8)), |
| BSSupplier.create("ofPublisher", () -> ofPublisher()), |
| BSSupplier.create("ofFile", () -> ofFile(Path.of("f"))), |
| BSSupplier.create("ofFile-opts)", () -> ofFile(Path.of("f"), CREATE)), |
| BSSupplier.create("ofString", () -> ofString(UTF_8)), |
| BSSupplier.create("buffering", () -> buffering(ofByteArray(), 10)), |
| BSSupplier.create("discarding", () -> discarding()), |
| BSSupplier.create("mapping", () -> mapping(ofString(UTF_8), s -> s)), |
| BSSupplier.create("replacing", () -> replacing("hello")), |
| BSSupplier.create("fromSubscriber-1", () -> fromSubscriber(new BBSubscriber())), |
| BSSupplier.create("fromSubscriber-2", () -> fromSubscriber(new BBSubscriber(), s -> s)), |
| BSSupplier.create("fromLineSubscriber-1", () -> fromLineSubscriber(new LineSubscriber())), |
| BSSupplier.create("fromLineSubscriber-2", () -> fromLineSubscriber(new LineSubscriber(), s -> s, UTF_8, ",")) |
| ); |
| |
| return list.stream().map(x -> new Object[] { x }).toArray(Object[][]::new); |
| } |
| |
| @Test(dataProvider = "bodySubscriberSuppliers") |
| void nulls(Supplier<BodySubscriber<?>> bodySubscriberSupplier) { |
| BodySubscriber<?> bodySubscriber = bodySubscriberSupplier.get(); |
| boolean subscribed = false; |
| |
| do { |
| assertNotNull(bodySubscriber.getBody()); |
| assertNotNull(bodySubscriber.getBody()); |
| assertNotNull(bodySubscriber.getBody()); |
| expectThrows(NPE, () -> bodySubscriber.onSubscribe(null)); |
| expectThrows(NPE, () -> bodySubscriber.onSubscribe(null)); |
| expectThrows(NPE, () -> bodySubscriber.onSubscribe(null)); |
| |
| expectThrows(NPE, () -> bodySubscriber.onNext(null)); |
| expectThrows(NPE, () -> bodySubscriber.onNext(null)); |
| expectThrows(NPE, () -> bodySubscriber.onNext(null)); |
| expectThrows(NPE, () -> bodySubscriber.onNext(null)); |
| |
| expectThrows(NPE, () -> bodySubscriber.onError(null)); |
| expectThrows(NPE, () -> bodySubscriber.onError(null)); |
| expectThrows(NPE, () -> bodySubscriber.onError(null)); |
| |
| if (!subscribed) { |
| out.println("subscribing"); |
| // subscribe the Subscriber and repeat |
| bodySubscriber.onSubscribe(new Flow.Subscription() { |
| @Override public void request(long n) { /* do nothing */ } |
| @Override public void cancel() { fail(); } |
| }); |
| subscribed = true; |
| continue; |
| } |
| break; |
| } while (true); |
| } |
| |
| @Test(dataProvider = "bodySubscriberSuppliers") |
| void subscribeMoreThanOnce(Supplier<BodySubscriber<?>> bodySubscriberSupplier) { |
| BodySubscriber<?> bodySubscriber = bodySubscriberSupplier.get(); |
| bodySubscriber.onSubscribe(new Flow.Subscription() { |
| @Override public void request(long n) { /* do nothing */ } |
| @Override public void cancel() { fail(); } |
| }); |
| |
| for (int i = 0; i < 5; i++) { |
| var subscription = new Flow.Subscription() { |
| volatile boolean cancelled; |
| @Override public void request(long n) { fail(); } |
| @Override public void cancel() { cancelled = true; } |
| }; |
| bodySubscriber.onSubscribe(subscription); |
| assertTrue(subscription.cancelled); |
| } |
| } |
| } |