author | dfuchs |
Tue, 01 Oct 2019 12:10:33 +0100 | |
changeset 58423 | 54de0c861d32 |
parent 57685 | e4cc5231ce2d |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.UncheckedIOException; |
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import java.net.http.HttpResponse; |
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import java.net.http.HttpResponse.BodySubscriber; |
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import java.net.http.HttpResponse.BodySubscribers; |
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import java.nio.ByteBuffer; |
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import java.util.List; |
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import java.util.concurrent.CompletableFuture; |
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import java.util.concurrent.CompletionException; |
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import java.util.concurrent.CompletionStage; |
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import java.util.concurrent.CountDownLatch; |
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import java.util.concurrent.ExecutionException; |
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import java.util.concurrent.Flow; |
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import java.util.concurrent.atomic.AtomicBoolean; |
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import java.util.concurrent.atomic.AtomicLong; |
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import org.testng.annotations.Test; |
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import static org.testng.Assert.*; |
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/* |
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* @test |
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* @bug 8197564 8228970 |
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* @summary Simple smoke test for BodySubscriber.asInputStream(); |
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* @run testng/othervm HttpResponseInputStreamTest |
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* @author daniel fuchs |
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*/ |
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public class HttpResponseInputStreamTest { |
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static final Class<NullPointerException> NPE = NullPointerException.class; |
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static final Class<IndexOutOfBoundsException> OOB = IndexOutOfBoundsException.class; |
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static class TestException extends IOException {} |
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public static void main(String[] args) throws InterruptedException, ExecutionException { |
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testOnError(); |
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} |
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/** |
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* Tests that a client will be unblocked and will throw an IOException |
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* if an error occurs while the client is waiting for more data. |
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* @throws InterruptedException |
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* @throws ExecutionException |
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*/ |
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@Test |
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public static void testOnError() throws InterruptedException, ExecutionException { |
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CountDownLatch latch = new CountDownLatch(1); |
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BodySubscriber<InputStream> isb = BodySubscribers.ofInputStream(); |
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ErrorTestSubscription s = new ErrorTestSubscription(isb); |
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CompletionStage<Throwable> cs = |
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isb.getBody().thenApplyAsync((is) -> s.accept(latch, is)); |
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latch.await(); |
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isb.onSubscribe(s); |
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s.t.join(); |
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Throwable result = cs.toCompletableFuture().get(); |
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Throwable t = result; |
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if (!(t instanceof IOException)) { |
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throw new RuntimeException("Failed to receive excpected IOException", result); |
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} else { |
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System.out.println("Got expected exception: " + t); |
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} |
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while (t != null) { |
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if (t instanceof TestException) break; |
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t = t.getCause(); |
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} |
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if (t instanceof TestException) { |
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System.out.println("Got expected cause: " + t); |
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} else { |
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throw new RuntimeException("Failed to receive excpected TestException", result); |
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} |
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} |
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static class ErrorTestSubscription implements Flow.Subscription { |
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final BodySubscriber<InputStream> isb; |
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final Thread t = new Thread() { |
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@Override |
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public void run() { |
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try { |
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// Give time to |
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System.out.println("waiting..."); |
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Thread.sleep(1000); |
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} catch (InterruptedException e) { |
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} |
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System.out.println("Calling onError..."); |
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isb.onError(new TestException()); |
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} |
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}; |
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ErrorTestSubscription(BodySubscriber<InputStream> isb) { |
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this.isb = isb; |
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} |
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int requested = 0; |
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@Override |
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public void request(long n) { |
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System.out.println("Got request: " + n); |
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if (requested == 0 && n > 0) { |
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//isb.onNext(List.of(java.nio.ByteBuffer.wrap(new byte[] {0x01}))); |
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requested += n; |
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t.start(); |
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} |
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} |
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@Override |
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public void cancel() { |
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} |
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public Throwable accept(CountDownLatch latch, InputStream is) { |
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System.out.println("got " + is); |
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try { |
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latch.countDown(); |
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System.out.println("reading all bytes"); |
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is.readAllBytes(); |
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System.out.println("all bytes read"); |
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} catch (IOException e) { |
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return e; |
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} finally { |
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try { |
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is.close(); |
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} catch (IOException e) { |
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return e; |
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} |
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} |
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return is == null ? new NullPointerException() : null; |
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} |
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} |
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static InputStream close(InputStream is) { |
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try { |
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is.close(); |
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} catch (IOException io) { |
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throw new CompletionException(io); |
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} |
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return is; |
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} |
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@Test |
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public static void testCloseAndSubscribe() |
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throws InterruptedException, ExecutionException |
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{ |
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BodySubscriber<InputStream> isb = BodySubscribers.ofInputStream(); |
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TestCancelOnCloseSubscription s = new TestCancelOnCloseSubscription(); |
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InputStream is = isb.getBody() |
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.thenApply(HttpResponseInputStreamTest::close) |
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.toCompletableFuture() |
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.get(); |
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isb.onSubscribe(s); |
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System.out.println(s); |
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if (!s.cancelled.get()) { |
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throw new RuntimeException("subscription not cancelled"); |
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} |
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if (s.request.get() > 0) { |
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throw new RuntimeException("subscription has demand"); |
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} |
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} |
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static byte[] readAllBytes(InputStream is) { |
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try { |
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return is.readAllBytes(); |
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} catch (IOException io) { |
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io.printStackTrace(); |
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throw new CompletionException(io); |
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} |
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} |
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@Test |
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public static void testReadParameters() throws InterruptedException, ExecutionException, IOException { |
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BodySubscriber<InputStream> isb = BodySubscribers.ofInputStream(); |
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InputStream is = isb.getBody().toCompletableFuture().get(); |
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Throwable ex; |
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// len == 0 |
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assertEquals(is.read(new byte[16], 0, 0), 0); |
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assertEquals(is.read(new byte[16], 16, 0), 0); |
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// index == -1 |
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ex = expectThrows(OOB, () -> is.read(new byte[16], -1, 10)); |
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System.out.println("OutOfBoundsException thrown as expected: " + ex); |
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// large offset |
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ex = expectThrows(OOB, () -> is.read(new byte[16], 17, 10)); |
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System.out.println("OutOfBoundsException thrown as expected: " + ex); |
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ex = expectThrows(OOB, () -> is.read(new byte[16], 10, 10)); |
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System.out.println("OutOfBoundsException thrown as expected: " + ex); |
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// null value |
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ex = expectThrows(NPE, () -> is.read(null, 0, 10)); |
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System.out.println("NullPointerException thrown as expected: " + ex); |
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} |
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@Test |
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public static void testSubscribeAndClose() |
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throws InterruptedException, ExecutionException |
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{ |
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BodySubscriber<InputStream> isb = BodySubscribers.ofInputStream(); |
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TestCancelOnCloseSubscription s = new TestCancelOnCloseSubscription(); |
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InputStream is = isb.getBody().toCompletableFuture().get(); |
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isb.onSubscribe(s); |
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if (s.cancelled.get()) { |
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throw new RuntimeException("subscription cancelled"); |
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} |
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CompletableFuture<String> cf = CompletableFuture.supplyAsync( |
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() -> HttpResponseInputStreamTest.readAllBytes(is)) |
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.thenApply(String::new); |
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while (s.request.get() == 0) { |
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Thread.sleep(100); |
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} |
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isb.onNext(List.of(ByteBuffer.wrap("coucou".getBytes()))); |
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close(is); |
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System.out.println(s); |
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if (!s.cancelled.get()) { |
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throw new RuntimeException("subscription not cancelled"); |
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} |
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if (s.request.get() == 0) { |
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throw new RuntimeException("subscription has no demand"); |
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} |
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try { |
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System.out.println("read " + cf.get() + "!"); |
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throw new RuntimeException("expected IOException not raised"); |
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} catch (ExecutionException | CompletionException x) { |
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if (x.getCause() instanceof IOException) { |
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System.out.println("Got expected IOException: " + x.getCause()); |
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} else { |
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throw x; |
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} |
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} |
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} |
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static class TestCancelOnCloseSubscription implements Flow.Subscription { |
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final AtomicLong request = new AtomicLong(); |
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final AtomicBoolean cancelled = new AtomicBoolean(); |
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@Override |
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public void request(long n) { |
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request.addAndGet(n); |
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} |
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@Override |
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public void cancel() { |
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cancelled.set(true); |
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} |
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@Override |
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public String toString() { |
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return String.format("%s(request=%d, cancelled=%s)", |
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this.getClass().getSimpleName(), |
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request.get(), |
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cancelled.get()); |
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} |
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} |
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} |