--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/net/httpclient/BufferingSubscriberErrorCompleteTest.java Wed Dec 06 11:11:59 2017 -0800
@@ -0,0 +1,226 @@
+/*
+ * Copyright (c) 2017, 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.
+ */
+
+import java.nio.ByteBuffer;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.CompletionStage;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.CyclicBarrier;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Flow.Subscription;
+import java.util.concurrent.Phaser;
+import java.util.concurrent.SubmissionPublisher;
+import java.util.function.IntSupplier;
+import java.util.stream.IntStream;
+import jdk.incubator.http.HttpResponse.BodySubscriber;
+import org.testng.annotations.DataProvider;
+import org.testng.annotations.Test;
+import static java.lang.Long.MAX_VALUE;
+import static java.lang.Long.MIN_VALUE;
+import static java.lang.System.out;
+import static java.nio.ByteBuffer.wrap;
+import static java.util.concurrent.TimeUnit.SECONDS;
+import static jdk.incubator.http.HttpResponse.BodySubscriber.buffering;
+import static org.testng.Assert.*;
+
+/*
+ * @test
+ * @summary Test for HttpResponse.BodySubscriber.buffering() onError/onComplete
+ * @run testng/othervm BufferingSubscriberErrorCompleteTest
+ */
+
+public class BufferingSubscriberErrorCompleteTest {
+
+ @DataProvider(name = "illegalDemand")
+ public Object[][] illegalDemand() {
+ return new Object[][]{
+ {0L}, {-1L}, {-5L}, {-100L}, {-101L}, {-100_001L}, {MIN_VALUE}
+ };
+ }
+
+ @Test(dataProvider = "illegalDemand")
+ public void illegalRequest(long demand) throws Exception {
+ ExecutorService executor = Executors.newFixedThreadPool(1);
+ SubmissionPublisher<List<ByteBuffer>> publisher =
+ new SubmissionPublisher<>(executor, 1);
+
+ Phaser gate = new Phaser(2); // single onSubscribe and onError
+ ExposingSubscriber exposingSubscriber = new ExposingSubscriber(gate);
+ BodySubscriber subscriber = buffering(exposingSubscriber, 1);
+ publisher.subscribe(subscriber);
+ gate.arriveAndAwaitAdvance();
+
+ Subscription s = exposingSubscriber.subscription;
+ int previous = exposingSubscriber.onErrorInvocations;
+ s.request(demand);
+ gate.arriveAndAwaitAdvance();
+
+ assertEquals(previous + 1, exposingSubscriber.onErrorInvocations);
+ assertTrue(exposingSubscriber.throwable instanceof IllegalArgumentException,
+ "Expected IAE, got:" + exposingSubscriber.throwable);
+
+ furtherCancelsRequestsShouldBeNoOp(s);
+ assertEquals(exposingSubscriber.onErrorInvocations, 1);
+ executor.shutdown();
+ }
+
+
+ @DataProvider(name = "bufferAndItemSizes")
+ public Object[][] bufferAndItemSizes() {
+ List<Object[]> values = new ArrayList<>();
+
+ for (int bufferSize : new int[] { 1, 5, 10, 100, 1000 })
+ for (int items : new int[] { 0, 1, 2, 5, 9, 10, 11, 15, 29, 99 })
+ values.add(new Object[] { bufferSize, items });
+
+ return values.stream().toArray(Object[][]::new);
+ }
+
+ @Test(dataProvider = "bufferAndItemSizes")
+ public void onErrorFromPublisher(int bufferSize,
+ int numberOfItems)
+ throws Exception
+ {
+ ExecutorService executor = Executors.newFixedThreadPool(1);
+ SubmissionPublisher<List<ByteBuffer>> publisher =
+ new SubmissionPublisher<>(executor, 1);
+
+ // onSubscribe + onError + this thread
+ Phaser gate = new Phaser(3);
+ ExposingSubscriber exposingSubscriber = new ExposingSubscriber(gate);
+ BodySubscriber subscriber = buffering(exposingSubscriber, bufferSize);
+ publisher.subscribe(subscriber);
+
+ List<ByteBuffer> item = List.of(wrap(new byte[] { 1 }));
+ IntStream.range(0, numberOfItems).forEach(x -> publisher.submit(item));
+ Throwable t = new Throwable("a message from me to me");
+ publisher.closeExceptionally(t);
+
+ gate.arriveAndAwaitAdvance();
+
+ Subscription s = exposingSubscriber.subscription;
+
+ assertEquals(exposingSubscriber.onErrorInvocations, 1);
+ assertEquals(exposingSubscriber.onCompleteInvocations, 0);
+ assertEquals(exposingSubscriber.throwable, t);
+ assertEquals(exposingSubscriber.throwable.getMessage(),
+ "a message from me to me");
+
+ furtherCancelsRequestsShouldBeNoOp(s);
+ assertEquals(exposingSubscriber.onErrorInvocations, 1);
+ assertEquals(exposingSubscriber.onCompleteInvocations, 0);
+ executor.shutdown();
+ }
+
+ @Test(dataProvider = "bufferAndItemSizes")
+ public void onCompleteFromPublisher(int bufferSize,
+ int numberOfItems)
+ throws Exception
+ {
+ ExecutorService executor = Executors.newFixedThreadPool(1);
+ SubmissionPublisher<List<ByteBuffer>> publisher =
+ new SubmissionPublisher<>(executor, 1);
+
+ // onSubscribe + onComplete + this thread
+ Phaser gate = new Phaser(3);
+ ExposingSubscriber exposingSubscriber = new ExposingSubscriber(gate);
+ BodySubscriber subscriber = buffering(exposingSubscriber, bufferSize);
+ publisher.subscribe(subscriber);
+
+ List<ByteBuffer> item = List.of(wrap(new byte[] { 1 }));
+ IntStream.range(0, numberOfItems).forEach(x -> publisher.submit(item));
+ publisher.close();
+
+ gate.arriveAndAwaitAdvance();
+
+ Subscription s = exposingSubscriber.subscription;
+
+ assertEquals(exposingSubscriber.onErrorInvocations, 0);
+ assertEquals(exposingSubscriber.onCompleteInvocations, 1);
+ assertEquals(exposingSubscriber.throwable, null);
+
+ furtherCancelsRequestsShouldBeNoOp(s);
+ assertEquals(exposingSubscriber.onErrorInvocations, 0);
+ assertEquals(exposingSubscriber.onCompleteInvocations, 1);
+ assertEquals(exposingSubscriber.throwable, null);
+ executor.shutdown();
+ }
+
+ static class ExposingSubscriber implements BodySubscriber<Void> {
+ final Phaser gate;
+ volatile Subscription subscription;
+ volatile int onNextInvocations;
+ volatile int onErrorInvocations;
+ volatile int onCompleteInvocations;
+ volatile Throwable throwable;
+
+ ExposingSubscriber(Phaser gate) {
+ this.gate = gate;
+ }
+
+ @Override
+ public void onSubscribe(Subscription subscription) {
+ //out.println("onSubscribe " + subscription);
+ this.subscription = subscription;
+ subscription.request(MAX_VALUE);
+ gate.arrive();
+ }
+
+ @Override
+ public void onNext(List<ByteBuffer> item) {
+ //out.println("onNext " + item);
+ onNextInvocations++;
+ }
+
+ @Override
+ public void onError(Throwable throwable) {
+ //out.println("onError " + throwable);
+ this.throwable = throwable;
+ onErrorInvocations++;
+ gate.arrive();
+ }
+
+ @Override
+ public void onComplete() {
+ //out.println("onComplete ");
+ onCompleteInvocations++;
+ gate.arrive();
+ }
+
+ @Override
+ public CompletionStage<Void> getBody() {
+ throw new UnsupportedOperationException("getBody is unsupported");
+ }
+ }
+
+ static void furtherCancelsRequestsShouldBeNoOp(Subscription s) {
+ s.cancel(); s.request(1);
+ s.cancel(); s.request(100); s.cancel();
+ s.cancel(); s.request(MAX_VALUE); s.cancel(); s.cancel();
+ s.cancel(); s.cancel(); s.cancel(); s.cancel();
+ s.request(MAX_VALUE); s.request(MAX_VALUE); s.request(MAX_VALUE);
+ s.request(-1); s.request(-100); s.request(MIN_VALUE);
+ }
+}