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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.container.jdisc;
import com.yahoo.jdisc.handler.CompletionHandler;
import com.yahoo.jdisc.handler.ContentChannel;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Handler;
import java.util.logging.Level;
import java.util.logging.LogRecord;
import java.util.logging.Logger;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNull;
/**
* Check error logging from ContentChannelOutputStream is sane.
*
* @author Steinar Knutsen
*/
public class LoggingTestCase {
Logger logger = Logger.getLogger(ContentChannelOutputStream.class.getName());
boolean initUseParentHandlers = logger.getUseParentHandlers();
LogCheckHandler logChecker;
Level initLevel;
private static class FailingContentChannel implements ContentChannel {
@Override
public void write(ByteBuffer buf, CompletionHandler handler) {
handler.failed(new RuntimeException());
}
@Override
public void close(CompletionHandler handler) {
// NOP
}
}
private class LogCheckHandler extends Handler {
Map<Level, Integer> errorCounter = new HashMap<>();
@Override
public void publish(LogRecord record) {
synchronized (errorCounter) {
Integer count = errorCounter.get(record.getLevel());
if (count == null) {
count = Integer.valueOf(0);
}
errorCounter.put(record.getLevel(),
Integer.valueOf(count.intValue() + 1));
}
}
@Override
public void flush() {
}
@Override
public void close() throws SecurityException {
}
}
ContentChannelOutputStream stream;
@BeforeEach
public void setUp() throws Exception {
stream = new ContentChannelOutputStream(new FailingContentChannel());
logger = Logger.getLogger(ContentChannelOutputStream.class.getName());
initUseParentHandlers = logger.getUseParentHandlers();
logger.setUseParentHandlers(false);
logger.setLevel(Level.ALL);
logChecker = new LogCheckHandler();
logger.addHandler(logChecker);
}
@AfterEach
public void tearDown() throws Exception {
logger.removeHandler(logChecker);
logger.setUseParentHandlers(initUseParentHandlers);
logger.setLevel(initLevel);
}
private ByteBuffer createData() {
ByteBuffer b = ByteBuffer.allocate(10);
return b;
}
@Test
final void testFailed() throws IOException {
stream.send(createData());
stream.send(createData());
stream.send(createData());
stream.flush();
assertNull(logChecker.errorCounter.get(Level.INFO));
assertEquals(1, logChecker.errorCounter.get(Level.FINE).intValue());
assertEquals(2, logChecker.errorCounter.get(Level.FINEST).intValue());
}
}
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