/*
* Copyright (c) 2008-2014 the original author or authors.
*
* Licensed 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.
*/
package org.cometd.javascript.extension;
import org.cometd.javascript.AbstractCometDTest;
import org.cometd.javascript.Latch;
import org.cometd.server.ext.TimesyncExtension;
import org.junit.Assert;
import org.junit.Test;
public class CometDTimeSyncExtensionTest extends AbstractCometDTest
{
@Test
public void testTimeSync() throws Exception
{
bayeuxServer.addExtension(new TimesyncExtension());
provideTimesyncExtension();
defineClass(Latch.class);
evaluateScript("cometd.configure({url: '" + cometdURL + "', logLevel: '" + getLogLevel() + "'});");
evaluateScript("var inTimeSync = undefined;");
evaluateScript("var outTimeSync = undefined;");
evaluateScript("cometd.registerExtension('test', {" +
"incoming: function(message)" +
"{" +
" var channel = message.channel;" +
" if (channel && channel.indexOf('/meta/') == 0)" +
" {" +
" /* The timesync from the server may be missing if it's accurate enough */" +
" var timesync = message.ext && message.ext.timesync;" +
" if (timesync) inTimeSync = timesync;" +
" }" +
" return message;" +
"}," +
"outgoing: function(message)" +
"{" +
" var channel = message.channel;" +
" if (channel && channel.indexOf('/meta/') == 0)" +
" {" +
" outTimeSync = message.ext && message.ext.timesync;" +
" }" +
" return message;" +
"}" +
"});");
evaluateScript("var readyLatch = new Latch(1);");
Latch readyLatch = get("readyLatch");
evaluateScript("cometd.addListener('/meta/handshake', function(message) { readyLatch.countDown(); });");
evaluateScript("cometd.handshake();");
Assert.assertTrue(readyLatch.await(5000));
// Both client and server should support timesync
Object outTimeSync = get("outTimeSync");
Assert.assertNotNull(outTimeSync);
Object inTimeSync = get("inTimeSync");
Assert.assertNotNull(inTimeSync);
evaluateScript("var timesync = cometd.getExtension('timesync');");
evaluateScript("var networkLag = timesync.getNetworkLag();");
evaluateScript("var timeOffset = timesync.getTimeOffset();");
int networkLag = ((Number)get("networkLag")).intValue();
Assert.assertTrue(String.valueOf(networkLag), networkLag >= 0);
evaluateScript("cometd.disconnect(true);");
}
}