| package org.apache.maven.surefire.booter; |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| import org.apache.maven.plugin.surefire.log.api.ConsoleLogger; |
| import org.apache.maven.plugin.surefire.log.api.NullConsoleLogger; |
| import org.apache.maven.surefire.api.booter.MasterProcessChannelDecoder; |
| import org.apache.maven.surefire.api.booter.Shutdown; |
| import org.apache.maven.surefire.booter.spi.LegacyMasterProcessChannelDecoder; |
| import org.apache.maven.surefire.booter.spi.LegacyMasterProcessChannelEncoder; |
| import org.apache.maven.surefire.api.testset.TestSetFailedException; |
| import org.apache.maven.surefire.api.util.internal.WritableBufferedByteChannel; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.PrintStream; |
| import java.util.Iterator; |
| import java.util.NoSuchElementException; |
| import java.util.concurrent.BlockingQueue; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.FutureTask; |
| import java.util.concurrent.LinkedBlockingQueue; |
| import java.util.concurrent.TimeUnit; |
| |
| import static org.apache.maven.surefire.api.util.internal.Channels.newBufferedChannel; |
| import static org.apache.maven.surefire.api.util.internal.Channels.newChannel; |
| import static org.fest.assertions.Assertions.assertThat; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.hamcrest.Matchers.is; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| /** |
| * Testing singleton {@code MasterProcessReader} in multiple class loaders. |
| * |
| * @author <a href="mailto:tibordigana@apache.org">Tibor Digana (tibor17)</a> |
| * @since 2.19 |
| */ |
| @RunWith( NewClassLoaderRunner.class ) |
| public class CommandReaderTest |
| { |
| private static final long DELAY = 200L; |
| private static final long TEST_TIMEOUT = 15_000L; |
| |
| private final BlockingQueue<Byte> blockingStream = new LinkedBlockingQueue<>(); |
| private CommandReader reader; |
| |
| static class A |
| { |
| } |
| |
| static class B |
| { |
| } |
| |
| static class C |
| { |
| } |
| |
| static class D |
| { |
| } |
| |
| @Before |
| public void init() |
| { |
| //noinspection ResultOfMethodCallIgnored |
| Thread.interrupted(); |
| InputStream realInputStream = new SystemInputStream(); |
| addTestToPipeline( getClass().getName() ); |
| ConsoleLogger logger = new NullConsoleLogger(); |
| MasterProcessChannelDecoder decoder = new LegacyMasterProcessChannelDecoder( newChannel( realInputStream ) ); |
| reader = new CommandReader( decoder, Shutdown.DEFAULT, logger ); |
| } |
| |
| @After |
| public void deinit() |
| { |
| reader.stop(); |
| } |
| |
| @Test |
| public void readJustOneClass() |
| { |
| Iterator<String> it = reader.getIterableClasses( new LegacyMasterProcessChannelEncoder( nul() ) ).iterator(); |
| assertTrue( it.hasNext() ); |
| assertThat( it.next(), is( getClass().getName() ) ); |
| reader.stop(); |
| assertFalse( it.hasNext() ); |
| try |
| { |
| it.next(); |
| fail(); |
| } |
| catch ( NoSuchElementException e ) |
| { |
| // expected |
| } |
| } |
| |
| @Test |
| public void manyClasses() |
| { |
| Iterator<String> it1 = reader.getIterableClasses( new LegacyMasterProcessChannelEncoder( nul() ) ).iterator(); |
| assertThat( it1.next(), is( getClass().getName() ) ); |
| addTestToPipeline( A.class.getName() ); |
| assertThat( it1.next(), is( A.class.getName() ) ); |
| addTestToPipeline( B.class.getName() ); |
| assertThat( it1.next(), is( B.class.getName() ) ); |
| addTestToPipeline( C.class.getName() ); |
| assertThat( it1.next(), is( C.class.getName() ) ); |
| addEndOfPipeline(); |
| addTestToPipeline( D.class.getName() ); |
| assertFalse( it1.hasNext() ); |
| } |
| |
| @Test |
| public void twoIterators() throws Exception |
| { |
| Iterator<String> it1 = reader.getIterableClasses( new LegacyMasterProcessChannelEncoder( nul() ) ).iterator(); |
| |
| assertThat( it1.next(), is( getClass().getName() ) ); |
| addTestToPipeline( A.class.getName() ); |
| assertThat( it1.next(), is( A.class.getName() ) ); |
| addTestToPipeline( B.class.getName() ); |
| |
| TimeUnit.MILLISECONDS.sleep( DELAY ); // give the test chance to fail |
| |
| Iterator<String> it2 = reader.iterated(); |
| |
| assertThat( it1.next(), is( B.class.getName() ) ); |
| addTestToPipeline( C.class.getName() ); |
| |
| assertThat( it2.hasNext(), is( true ) ); |
| assertThat( it2.next(), is( getClass().getName() ) ); |
| assertThat( it2.hasNext(), is( true ) ); |
| assertThat( it2.next(), is( A.class.getName() ) ); |
| assertThat( it2 ).isEmpty(); |
| |
| assertThat( it1.next(), is( C.class.getName() ) ); |
| addEndOfPipeline(); |
| assertThat( it1 ).isEmpty(); |
| } |
| |
| @Test( expected = NoSuchElementException.class ) |
| public void stopBeforeReadInThread() throws Throwable |
| { |
| Runnable runnable = new Runnable() |
| { |
| @Override |
| public void run() |
| { |
| Iterator<String> it = |
| reader.getIterableClasses( new LegacyMasterProcessChannelEncoder( nul() ) ).iterator(); |
| assertThat( it.next(), is( CommandReaderTest.class.getName() ) ); |
| } |
| }; |
| FutureTask<Object> futureTask = new FutureTask<>( runnable, null ); |
| Thread t = new Thread( futureTask ); |
| reader.stop(); |
| t.start(); |
| try |
| { |
| futureTask.get(); |
| } |
| catch ( ExecutionException e ) |
| { |
| throw e.getCause(); |
| } |
| } |
| |
| @Test |
| public void readTwoClassesInThread() throws Throwable |
| { |
| final CountDownLatch counter = new CountDownLatch( 1 ); |
| Runnable runnable = new Runnable() |
| { |
| @Override |
| public void run() |
| { |
| Iterator<String> it = |
| reader.getIterableClasses( new LegacyMasterProcessChannelEncoder( nul() ) ).iterator(); |
| assertThat( it.next(), is( CommandReaderTest.class.getName() ) ); |
| counter.countDown(); |
| assertThat( it.next(), is( Foo.class.getName() ) ); |
| } |
| }; |
| FutureTask<Object> futureTask = new FutureTask<>( runnable, null ); |
| Thread t = new Thread( futureTask ); |
| t.start(); |
| counter.await(); |
| addTestToPipeline( Foo.class.getName() ); |
| try |
| { |
| futureTask.get(); |
| } |
| catch ( ExecutionException e ) |
| { |
| throw e.getCause(); |
| } |
| } |
| |
| @Test( timeout = TEST_TIMEOUT ) |
| public void shouldAwaitReaderUp() throws TestSetFailedException |
| { |
| assertTrue( reader.awaitStarted() ); |
| reader.stop(); |
| assertFalse( reader.awaitStarted() ); |
| } |
| |
| private class SystemInputStream extends InputStream |
| { |
| @Override |
| public int read() throws IOException |
| { |
| try |
| { |
| return CommandReaderTest.this.blockingStream.take(); |
| } |
| catch ( InterruptedException e ) |
| { |
| throw new IOException( e ); |
| } |
| } |
| } |
| |
| private void addTestToPipeline( String cls ) |
| { |
| for ( byte cmdByte : ( ":maven-surefire-command:run-testclass:" + cls + ":" ).getBytes() ) |
| { |
| blockingStream.add( cmdByte ); |
| } |
| } |
| |
| private void addEndOfPipeline() |
| { |
| for ( byte cmdByte : ":maven-surefire-command:testset-finished:".getBytes() ) |
| { |
| blockingStream.add( cmdByte ); |
| } |
| } |
| |
| private static WritableBufferedByteChannel nul() |
| { |
| return newBufferedChannel( new PrintStream( new ByteArrayOutputStream() ) ); |
| } |
| } |