Motivation: We need to update to a new checkstyle plugin to allow the usage of lambdas. Modifications: - Update to new plugin version. - Fix checkstyle problems. Result: Be able to use checkstyle plugin which supports new Java syntax.
660 lines
27 KiB
Java
660 lines
27 KiB
Java
/*
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* Copyright 2014 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License, version 2.0 (the
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* "License"); you may not use this file except in compliance with the License. You may obtain a
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* copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the License
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* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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* or implied. See the License for the specific language governing permissions and limitations under
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* the License.
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*/
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package io.netty.handler.codec.http2;
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import io.netty.buffer.ByteBuf;
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import io.netty.buffer.Unpooled;
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import io.netty.channel.DefaultEventLoopGroup;
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import io.netty.handler.codec.http2.Http2Connection.Endpoint;
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import io.netty.handler.codec.http2.Http2Stream.State;
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import io.netty.util.concurrent.Future;
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import io.netty.util.concurrent.FutureListener;
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import io.netty.util.concurrent.Promise;
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import org.junit.AfterClass;
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import org.junit.Before;
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import org.junit.BeforeClass;
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import org.junit.Rule;
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import org.junit.Test;
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import org.junit.rules.ExpectedException;
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import org.mockito.ArgumentMatchers;
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import org.mockito.Mock;
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import org.mockito.MockitoAnnotations;
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import org.mockito.invocation.InvocationOnMock;
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import org.mockito.stubbing.Answer;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.TimeUnit;
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import static java.lang.Integer.MAX_VALUE;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertNotNull;
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import static org.junit.Assert.assertNull;
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import static org.junit.Assert.assertTrue;
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import static org.junit.Assert.fail;
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import static org.mockito.Mockito.any;
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import static org.mockito.Mockito.anyInt;
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import static org.mockito.Mockito.anyLong;
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import static org.mockito.Mockito.doAnswer;
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import static org.mockito.Mockito.eq;
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import static org.mockito.Mockito.never;
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import static org.mockito.Mockito.verify;
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/**
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* Tests for {@link DefaultHttp2Connection}.
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*/
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public class DefaultHttp2ConnectionTest {
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@Rule
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public ExpectedException thrown = ExpectedException.none();
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private DefaultHttp2Connection server;
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private DefaultHttp2Connection client;
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private static DefaultEventLoopGroup group;
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@Mock
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private Http2Connection.Listener clientListener;
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@Mock
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private Http2Connection.Listener clientListener2;
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@BeforeClass
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public static void beforeClass() {
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group = new DefaultEventLoopGroup(2);
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}
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@AfterClass
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public static void afterClass() {
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group.shutdownGracefully();
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}
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@Before
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public void setup() {
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MockitoAnnotations.initMocks(this);
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server = new DefaultHttp2Connection(true);
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client = new DefaultHttp2Connection(false);
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client.addListener(clientListener);
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doAnswer(new Answer<Void>() {
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@Override
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public Void answer(InvocationOnMock invocation) throws Throwable {
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assertNotNull(client.stream(((Http2Stream) invocation.getArgument(0)).id()));
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return null;
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}
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}).when(clientListener).onStreamClosed(any(Http2Stream.class));
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doAnswer(new Answer<Void>() {
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@Override
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public Void answer(InvocationOnMock invocation) throws Throwable {
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assertNull(client.stream(((Http2Stream) invocation.getArgument(0)).id()));
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return null;
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}
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}).when(clientListener).onStreamRemoved(any(Http2Stream.class));
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}
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@Test
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public void getStreamWithoutStreamShouldReturnNull() {
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assertNull(server.stream(100));
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}
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@Test
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public void removeAllStreamsWithEmptyStreams() throws InterruptedException {
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testRemoveAllStreams();
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}
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@Test
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public void removeAllStreamsWithJustOneLocalStream() throws InterruptedException, Http2Exception {
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client.local().createStream(3, false);
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testRemoveAllStreams();
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}
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@Test
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public void removeAllStreamsWithJustOneRemoveStream() throws InterruptedException, Http2Exception {
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client.remote().createStream(2, false);
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testRemoveAllStreams();
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}
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@Test
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public void removeAllStreamsWithManyActiveStreams() throws InterruptedException, Http2Exception {
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Endpoint<Http2RemoteFlowController> remote = client.remote();
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Endpoint<Http2LocalFlowController> local = client.local();
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for (int c = 3, s = 2; c < 5000; c += 2, s += 2) {
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local.createStream(c, false);
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remote.createStream(s, false);
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}
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testRemoveAllStreams();
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}
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@Test
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public void removeIndividualStreamsWhileCloseDoesNotNPE() throws InterruptedException, Http2Exception {
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final Http2Stream streamA = client.local().createStream(3, false);
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final Http2Stream streamB = client.remote().createStream(2, false);
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doAnswer(new Answer<Void>() {
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@Override
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public Void answer(InvocationOnMock invocation) throws Throwable {
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streamA.close();
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streamB.close();
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return null;
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}
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}).when(clientListener2).onStreamClosed(any(Http2Stream.class));
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try {
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client.addListener(clientListener2);
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testRemoveAllStreams();
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} finally {
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client.removeListener(clientListener2);
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}
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}
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@Test
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public void removeAllStreamsWhileIteratingActiveStreams() throws InterruptedException, Http2Exception {
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final Endpoint<Http2RemoteFlowController> remote = client.remote();
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final Endpoint<Http2LocalFlowController> local = client.local();
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for (int c = 3, s = 2; c < 5000; c += 2, s += 2) {
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local.createStream(c, false);
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remote.createStream(s, false);
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}
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final Promise<Void> promise = group.next().newPromise();
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final CountDownLatch latch = new CountDownLatch(client.numActiveStreams());
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client.forEachActiveStream(new Http2StreamVisitor() {
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@Override
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public boolean visit(Http2Stream stream) {
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client.close(promise).addListener(new FutureListener<Void>() {
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@Override
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public void operationComplete(Future<Void> future) throws Exception {
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assertTrue(promise.isDone());
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latch.countDown();
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}
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});
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return true;
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}
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});
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assertTrue(latch.await(5, TimeUnit.SECONDS));
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}
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@Test
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public void removeAllStreamsWhileIteratingActiveStreamsAndExceptionOccurs()
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throws InterruptedException, Http2Exception {
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final Endpoint<Http2RemoteFlowController> remote = client.remote();
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final Endpoint<Http2LocalFlowController> local = client.local();
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for (int c = 3, s = 2; c < 5000; c += 2, s += 2) {
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local.createStream(c, false);
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remote.createStream(s, false);
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}
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final Promise<Void> promise = group.next().newPromise();
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final CountDownLatch latch = new CountDownLatch(1);
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try {
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client.forEachActiveStream(new Http2StreamVisitor() {
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@Override
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public boolean visit(Http2Stream stream) throws Http2Exception {
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// This close call is basically a noop, because the following statement will throw an exception.
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client.close(promise);
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// Do an invalid operation while iterating.
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remote.createStream(3, false);
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return true;
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}
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});
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} catch (Http2Exception ignored) {
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client.close(promise).addListener(new FutureListener<Void>() {
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@Override
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public void operationComplete(Future<Void> future) throws Exception {
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assertTrue(promise.isDone());
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latch.countDown();
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}
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});
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}
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assertTrue(latch.await(5, TimeUnit.SECONDS));
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}
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@Test
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public void goAwayReceivedShouldCloseStreamsGreaterThanLastStream() throws Exception {
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Http2Stream stream1 = client.local().createStream(3, false);
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Http2Stream stream2 = client.local().createStream(5, false);
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Http2Stream remoteStream = client.remote().createStream(4, false);
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assertEquals(State.OPEN, stream1.state());
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assertEquals(State.OPEN, stream2.state());
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client.goAwayReceived(3, 8, null);
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assertEquals(State.OPEN, stream1.state());
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assertEquals(State.CLOSED, stream2.state());
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assertEquals(State.OPEN, remoteStream.state());
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assertEquals(3, client.local().lastStreamKnownByPeer());
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assertEquals(5, client.local().lastStreamCreated());
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// The remote endpoint must not be affected by a received GOAWAY frame.
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assertEquals(-1, client.remote().lastStreamKnownByPeer());
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assertEquals(State.OPEN, remoteStream.state());
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}
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@Test
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public void goAwaySentShouldCloseStreamsGreaterThanLastStream() throws Exception {
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Http2Stream stream1 = server.remote().createStream(3, false);
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Http2Stream stream2 = server.remote().createStream(5, false);
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Http2Stream localStream = server.local().createStream(4, false);
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server.goAwaySent(3, 8, null);
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assertEquals(State.OPEN, stream1.state());
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assertEquals(State.CLOSED, stream2.state());
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assertEquals(3, server.remote().lastStreamKnownByPeer());
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assertEquals(5, server.remote().lastStreamCreated());
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// The local endpoint must not be affected by a sent GOAWAY frame.
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assertEquals(-1, server.local().lastStreamKnownByPeer());
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assertEquals(State.OPEN, localStream.state());
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}
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@Test
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public void serverCreateStreamShouldSucceed() throws Http2Exception {
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Http2Stream stream = server.local().createStream(2, false);
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assertEquals(2, stream.id());
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assertEquals(State.OPEN, stream.state());
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assertEquals(1, server.numActiveStreams());
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assertEquals(2, server.local().lastStreamCreated());
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stream = server.local().createStream(4, true);
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assertEquals(4, stream.id());
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assertEquals(State.HALF_CLOSED_LOCAL, stream.state());
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assertEquals(2, server.numActiveStreams());
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assertEquals(4, server.local().lastStreamCreated());
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stream = server.remote().createStream(3, true);
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assertEquals(3, stream.id());
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assertEquals(State.HALF_CLOSED_REMOTE, stream.state());
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assertEquals(3, server.numActiveStreams());
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assertEquals(3, server.remote().lastStreamCreated());
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stream = server.remote().createStream(5, false);
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assertEquals(5, stream.id());
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assertEquals(State.OPEN, stream.state());
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assertEquals(4, server.numActiveStreams());
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assertEquals(5, server.remote().lastStreamCreated());
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}
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@Test
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public void clientCreateStreamShouldSucceed() throws Http2Exception {
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Http2Stream stream = client.remote().createStream(2, false);
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assertEquals(2, stream.id());
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assertEquals(State.OPEN, stream.state());
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assertEquals(1, client.numActiveStreams());
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assertEquals(2, client.remote().lastStreamCreated());
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stream = client.remote().createStream(4, true);
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assertEquals(4, stream.id());
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assertEquals(State.HALF_CLOSED_REMOTE, stream.state());
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assertEquals(2, client.numActiveStreams());
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assertEquals(4, client.remote().lastStreamCreated());
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assertTrue(stream.isHeadersReceived());
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stream = client.local().createStream(3, true);
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assertEquals(3, stream.id());
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assertEquals(State.HALF_CLOSED_LOCAL, stream.state());
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assertEquals(3, client.numActiveStreams());
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assertEquals(3, client.local().lastStreamCreated());
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assertTrue(stream.isHeadersSent());
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stream = client.local().createStream(5, false);
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assertEquals(5, stream.id());
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assertEquals(State.OPEN, stream.state());
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assertEquals(4, client.numActiveStreams());
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assertEquals(5, client.local().lastStreamCreated());
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}
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@Test
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public void serverReservePushStreamShouldSucceed() throws Http2Exception {
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Http2Stream stream = server.remote().createStream(3, true);
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Http2Stream pushStream = server.local().reservePushStream(2, stream);
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assertEquals(2, pushStream.id());
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assertEquals(State.RESERVED_LOCAL, pushStream.state());
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assertEquals(1, server.numActiveStreams());
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assertEquals(2, server.local().lastStreamCreated());
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}
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@Test
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public void clientReservePushStreamShouldSucceed() throws Http2Exception {
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Http2Stream stream = server.remote().createStream(3, true);
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Http2Stream pushStream = server.local().reservePushStream(4, stream);
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assertEquals(4, pushStream.id());
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assertEquals(State.RESERVED_LOCAL, pushStream.state());
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assertEquals(1, server.numActiveStreams());
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assertEquals(4, server.local().lastStreamCreated());
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}
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@Test
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public void serverRemoteIncrementAndGetStreamShouldSucceed() throws Http2Exception {
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incrementAndGetStreamShouldSucceed(server.remote());
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}
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@Test
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public void serverLocalIncrementAndGetStreamShouldSucceed() throws Http2Exception {
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incrementAndGetStreamShouldSucceed(server.local());
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}
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@Test
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public void clientRemoteIncrementAndGetStreamShouldSucceed() throws Http2Exception {
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incrementAndGetStreamShouldSucceed(client.remote());
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}
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@Test
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public void clientLocalIncrementAndGetStreamShouldSucceed() throws Http2Exception {
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incrementAndGetStreamShouldSucceed(client.local());
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}
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@Test(expected = Http2NoMoreStreamIdsException.class)
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public void serverRemoteIncrementAndGetStreamShouldRespectOverflow() throws Http2Exception {
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incrementAndGetStreamShouldRespectOverflow(server.remote(), MAX_VALUE);
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}
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@Test(expected = Http2NoMoreStreamIdsException.class)
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public void serverLocalIncrementAndGetStreamShouldRespectOverflow() throws Http2Exception {
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incrementAndGetStreamShouldRespectOverflow(server.local(), MAX_VALUE - 1);
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}
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@Test(expected = Http2NoMoreStreamIdsException.class)
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public void clientRemoteIncrementAndGetStreamShouldRespectOverflow() throws Http2Exception {
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incrementAndGetStreamShouldRespectOverflow(client.remote(), MAX_VALUE - 1);
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}
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@Test(expected = Http2NoMoreStreamIdsException.class)
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public void clientLocalIncrementAndGetStreamShouldRespectOverflow() throws Http2Exception {
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incrementAndGetStreamShouldRespectOverflow(client.local(), MAX_VALUE);
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}
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@Test(expected = Http2Exception.class)
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public void newStreamBehindExpectedShouldThrow() throws Http2Exception {
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server.local().createStream(0, true);
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}
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@Test(expected = Http2Exception.class)
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public void newStreamNotForServerShouldThrow() throws Http2Exception {
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server.local().createStream(11, true);
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}
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@Test(expected = Http2Exception.class)
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public void newStreamNotForClientShouldThrow() throws Http2Exception {
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client.local().createStream(10, true);
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}
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@Test(expected = Http2Exception.class)
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public void createShouldThrowWhenMaxAllowedStreamsOpenExceeded() throws Http2Exception {
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server.local().maxActiveStreams(0);
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server.local().createStream(2, true);
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}
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@Test(expected = Http2Exception.class)
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public void serverCreatePushShouldFailOnRemoteEndpointWhenMaxAllowedStreamsExceeded() throws Http2Exception {
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server = new DefaultHttp2Connection(true, 0);
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server.remote().maxActiveStreams(1);
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Http2Stream requestStream = server.remote().createStream(3, false);
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server.remote().reservePushStream(2, requestStream);
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}
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@Test(expected = Http2Exception.class)
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public void clientCreatePushShouldFailOnRemoteEndpointWhenMaxAllowedStreamsExceeded() throws Http2Exception {
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client = new DefaultHttp2Connection(false, 0);
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client.remote().maxActiveStreams(1);
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Http2Stream requestStream = client.remote().createStream(2, false);
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client.remote().reservePushStream(4, requestStream);
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}
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@Test
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public void serverCreatePushShouldSucceedOnLocalEndpointWhenMaxAllowedStreamsExceeded() throws Http2Exception {
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server = new DefaultHttp2Connection(true, 0);
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server.local().maxActiveStreams(1);
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Http2Stream requestStream = server.remote().createStream(3, false);
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assertNotNull(server.local().reservePushStream(2, requestStream));
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}
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@Test(expected = Http2Exception.class)
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public void reserveWithPushDisallowedShouldThrow() throws Http2Exception {
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Http2Stream stream = server.remote().createStream(3, true);
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server.remote().allowPushTo(false);
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server.local().reservePushStream(2, stream);
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}
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@Test(expected = Http2Exception.class)
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public void goAwayReceivedShouldDisallowLocalCreation() throws Http2Exception {
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server.goAwayReceived(0, 1L, Unpooled.EMPTY_BUFFER);
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server.local().createStream(3, true);
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}
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@Test
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public void goAwayReceivedShouldAllowRemoteCreation() throws Http2Exception {
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server.goAwayReceived(0, 1L, Unpooled.EMPTY_BUFFER);
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server.remote().createStream(3, true);
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}
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@Test(expected = Http2Exception.class)
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public void goAwaySentShouldDisallowRemoteCreation() throws Http2Exception {
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server.goAwaySent(0, 1L, Unpooled.EMPTY_BUFFER);
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server.remote().createStream(2, true);
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}
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@Test
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public void goAwaySentShouldAllowLocalCreation() throws Http2Exception {
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server.goAwaySent(0, 1L, Unpooled.EMPTY_BUFFER);
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server.local().createStream(2, true);
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}
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@Test
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public void closeShouldSucceed() throws Http2Exception {
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Http2Stream stream = server.remote().createStream(3, true);
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stream.close();
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assertEquals(State.CLOSED, stream.state());
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assertEquals(0, server.numActiveStreams());
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}
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@Test
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public void closeLocalWhenOpenShouldSucceed() throws Http2Exception {
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Http2Stream stream = server.remote().createStream(3, false);
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stream.closeLocalSide();
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assertEquals(State.HALF_CLOSED_LOCAL, stream.state());
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assertEquals(1, server.numActiveStreams());
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}
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@Test
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public void closeRemoteWhenOpenShouldSucceed() throws Http2Exception {
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Http2Stream stream = server.remote().createStream(3, false);
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stream.closeRemoteSide();
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assertEquals(State.HALF_CLOSED_REMOTE, stream.state());
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assertEquals(1, server.numActiveStreams());
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}
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@Test
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public void closeOnlyOpenSideShouldClose() throws Http2Exception {
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Http2Stream stream = server.remote().createStream(3, true);
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stream.closeLocalSide();
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assertEquals(State.CLOSED, stream.state());
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assertEquals(0, server.numActiveStreams());
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}
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@SuppressWarnings("NumericOverflow")
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@Test(expected = Http2Exception.class)
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public void localStreamInvalidStreamIdShouldThrow() throws Http2Exception {
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client.local().createStream(MAX_VALUE + 2, false);
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}
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@SuppressWarnings("NumericOverflow")
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@Test(expected = Http2Exception.class)
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public void remoteStreamInvalidStreamIdShouldThrow() throws Http2Exception {
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client.remote().createStream(MAX_VALUE + 1, false);
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}
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/**
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* We force {@link #clientListener} methods to all throw a {@link RuntimeException} and verify the following:
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* <ol>
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* <li>all listener methods are called for both {@link #clientListener} and {@link #clientListener2}</li>
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* <li>{@link #clientListener2} is notified after {@link #clientListener}</li>
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* <li>{@link #clientListener2} methods are all still called despite {@link #clientListener}'s
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* method throwing a {@link RuntimeException}</li>
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* </ol>
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*/
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@Test
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public void listenerThrowShouldNotPreventOtherListenersFromBeingNotified() throws Http2Exception {
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final boolean[] calledArray = new boolean[128];
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// The following setup will ensure that clientListener throws exceptions, and marks a value in an array
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// such that clientListener2 will verify that is is set or fail the test.
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int methodIndex = 0;
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doAnswer(new ListenerExceptionThrower(calledArray, methodIndex))
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.when(clientListener).onStreamAdded(any(Http2Stream.class));
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doAnswer(new ListenerVerifyCallAnswer(calledArray, methodIndex++))
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.when(clientListener2).onStreamAdded(any(Http2Stream.class));
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doAnswer(new ListenerExceptionThrower(calledArray, methodIndex))
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.when(clientListener).onStreamActive(any(Http2Stream.class));
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doAnswer(new ListenerVerifyCallAnswer(calledArray, methodIndex++))
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.when(clientListener2).onStreamActive(any(Http2Stream.class));
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doAnswer(new ListenerExceptionThrower(calledArray, methodIndex))
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.when(clientListener).onStreamHalfClosed(any(Http2Stream.class));
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doAnswer(new ListenerVerifyCallAnswer(calledArray, methodIndex++))
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.when(clientListener2).onStreamHalfClosed(any(Http2Stream.class));
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doAnswer(new ListenerExceptionThrower(calledArray, methodIndex))
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.when(clientListener).onStreamClosed(any(Http2Stream.class));
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doAnswer(new ListenerVerifyCallAnswer(calledArray, methodIndex++))
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.when(clientListener2).onStreamClosed(any(Http2Stream.class));
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doAnswer(new ListenerExceptionThrower(calledArray, methodIndex))
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.when(clientListener).onStreamRemoved(any(Http2Stream.class));
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doAnswer(new ListenerVerifyCallAnswer(calledArray, methodIndex++))
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.when(clientListener2).onStreamRemoved(any(Http2Stream.class));
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doAnswer(new ListenerExceptionThrower(calledArray, methodIndex))
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.when(clientListener).onGoAwaySent(anyInt(), anyLong(), any(ByteBuf.class));
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doAnswer(new ListenerVerifyCallAnswer(calledArray, methodIndex++))
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.when(clientListener2).onGoAwaySent(anyInt(), anyLong(), any(ByteBuf.class));
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doAnswer(new ListenerExceptionThrower(calledArray, methodIndex))
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.when(clientListener).onGoAwayReceived(anyInt(), anyLong(), any(ByteBuf.class));
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doAnswer(new ListenerVerifyCallAnswer(calledArray, methodIndex++))
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.when(clientListener2).onGoAwayReceived(anyInt(), anyLong(), any(ByteBuf.class));
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doAnswer(new ListenerExceptionThrower(calledArray, methodIndex))
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.when(clientListener).onStreamAdded(any(Http2Stream.class));
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doAnswer(new ListenerVerifyCallAnswer(calledArray, methodIndex++))
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.when(clientListener2).onStreamAdded(any(Http2Stream.class));
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// Now we add clientListener2 and exercise all listener functionality
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try {
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client.addListener(clientListener2);
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Http2Stream stream = client.local().createStream(3, false);
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verify(clientListener).onStreamAdded(any(Http2Stream.class));
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verify(clientListener2).onStreamAdded(any(Http2Stream.class));
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verify(clientListener).onStreamActive(any(Http2Stream.class));
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verify(clientListener2).onStreamActive(any(Http2Stream.class));
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Http2Stream reservedStream = client.remote().reservePushStream(2, stream);
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verify(clientListener, never()).onStreamActive(streamEq(reservedStream));
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verify(clientListener2, never()).onStreamActive(streamEq(reservedStream));
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reservedStream.open(false);
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verify(clientListener).onStreamActive(streamEq(reservedStream));
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verify(clientListener2).onStreamActive(streamEq(reservedStream));
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stream.closeLocalSide();
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verify(clientListener).onStreamHalfClosed(any(Http2Stream.class));
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verify(clientListener2).onStreamHalfClosed(any(Http2Stream.class));
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stream.close();
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verify(clientListener).onStreamClosed(any(Http2Stream.class));
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verify(clientListener2).onStreamClosed(any(Http2Stream.class));
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verify(clientListener).onStreamRemoved(any(Http2Stream.class));
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verify(clientListener2).onStreamRemoved(any(Http2Stream.class));
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client.goAwaySent(client.connectionStream().id(), Http2Error.INTERNAL_ERROR.code(), Unpooled.EMPTY_BUFFER);
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verify(clientListener).onGoAwaySent(anyInt(), anyLong(), any(ByteBuf.class));
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verify(clientListener2).onGoAwaySent(anyInt(), anyLong(), any(ByteBuf.class));
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client.goAwayReceived(client.connectionStream().id(),
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Http2Error.INTERNAL_ERROR.code(), Unpooled.EMPTY_BUFFER);
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verify(clientListener).onGoAwayReceived(anyInt(), anyLong(), any(ByteBuf.class));
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verify(clientListener2).onGoAwayReceived(anyInt(), anyLong(), any(ByteBuf.class));
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} finally {
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client.removeListener(clientListener2);
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}
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}
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private void testRemoveAllStreams() throws InterruptedException {
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final CountDownLatch latch = new CountDownLatch(1);
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final Promise<Void> promise = group.next().newPromise();
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client.close(promise).addListener(new FutureListener<Void>() {
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@Override
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public void operationComplete(Future<Void> future) throws Exception {
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assertTrue(promise.isDone());
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latch.countDown();
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}
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});
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assertTrue(latch.await(5, TimeUnit.SECONDS));
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}
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private static void incrementAndGetStreamShouldRespectOverflow(Endpoint<?> endpoint, int streamId)
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throws Http2Exception {
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assertTrue(streamId > 0);
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try {
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endpoint.createStream(streamId, true);
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streamId = endpoint.incrementAndGetNextStreamId();
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} catch (Throwable t) {
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fail();
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}
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assertTrue(streamId < 0);
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endpoint.createStream(streamId, true);
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}
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private static void incrementAndGetStreamShouldSucceed(Endpoint<?> endpoint) throws Http2Exception {
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Http2Stream streamA = endpoint.createStream(endpoint.incrementAndGetNextStreamId(), true);
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Http2Stream streamB = endpoint.createStream(streamA.id() + 2, true);
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Http2Stream streamC = endpoint.createStream(endpoint.incrementAndGetNextStreamId(), true);
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assertEquals(streamB.id() + 2, streamC.id());
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endpoint.createStream(streamC.id() + 2, true);
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}
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private static final class ListenerExceptionThrower implements Answer<Void> {
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private static final RuntimeException FAKE_EXCEPTION = new RuntimeException("Fake Exception");
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private final boolean[] array;
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private final int index;
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ListenerExceptionThrower(boolean[] array, int index) {
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this.array = array;
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this.index = index;
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}
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@Override
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public Void answer(InvocationOnMock invocation) throws Throwable {
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array[index] = true;
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throw FAKE_EXCEPTION;
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}
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}
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private static final class ListenerVerifyCallAnswer implements Answer<Void> {
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private final boolean[] array;
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private final int index;
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ListenerVerifyCallAnswer(boolean[] array, int index) {
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this.array = array;
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this.index = index;
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}
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@Override
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public Void answer(InvocationOnMock invocation) throws Throwable {
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assertTrue(array[index]);
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return null;
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}
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}
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@SuppressWarnings("unchecked")
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private static <T> T streamEq(T stream) {
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return (T) (stream == null ? ArgumentMatchers.<Http2Stream>isNull() : eq(stream));
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}
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}
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