/*
* Copyright 2012 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 com.nokia.dempsy.spring;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import java.io.FileNotFoundException;
import java.util.concurrent.CountDownLatch;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.junit.Before;
import org.junit.Test;
import com.nokia.dempsy.Dempsy;
import com.nokia.dempsy.DempsyException;
import com.nokia.dempsy.cluster.zookeeper.ZookeeperTestServer;
public class TestRunNode
{
private static Logger logger = LoggerFactory.getLogger(TestRunNode.class);
// internal test state
volatile boolean failed = false;
volatile CountDownLatch finished = new CountDownLatch(0);
@Before
public void setup()
{
System.setProperty(RunNode.appdefParam, "TestDempsyApplication.xml");
System.setProperty(RunNode.applicationParam, "test-app:test-cluster");
System.setProperty(RunNode.zk_connectParam, "127.0.0.1:2081");
// reset the grabber
SimpleAppForTesting.grabber.set(null);
finished = new CountDownLatch(0);
failed = false;
}
public static interface Checker { public void check() throws Throwable; }
public void withAndWithoutZookeeper(Checker toCheck) throws Throwable
{
logger.info("********************************************************");
logger.info("Running " + toCheck + " without zookeeper.");
// without zookeeper
toCheck.check();
logger.info("********************************************************");
logger.info("Running " + toCheck + " with zookeeper.");
int port = ZookeeperTestServer.findNextPort();
// rerun the setup since the cluster param is overwritten - probably should fix that.
setup();
// reset the port to the latest.
System.setProperty(RunNode.zk_connectParam, "127.0.0.1:" + port);
// now run zookeeper
ZookeeperTestServer server = new ZookeeperTestServer();
try
{
server.start();
toCheck.check();
}
finally
{
server.shutdown();
}
}
public Thread makeMainThread()
{
return new Thread(new Runnable() {
@Override public void run() {
try
{
RunNode.run(new String[0]);
}
catch (Throwable th)
{
failed = true;
}
finally
{
finished.countDown();
}
}
}, "DempsyStartup");
}
@Test
public void testNormalStartup() throws Throwable
{
withAndWithoutZookeeper(new Checker()
{
public void check() throws Throwable
{
finished = new CountDownLatch(1); // need to wait on the clean shutdown
// call main in another thread
Thread t = makeMainThread();
t.start();
// wait for DempsyGrabber
for (long endTime = System.currentTimeMillis() + 60000; endTime > System.currentTimeMillis() && SimpleAppForTesting.grabber.get() == null;) Thread.sleep(1);
assertNotNull(SimpleAppForTesting.grabber.get());
assertTrue(SimpleAppForTesting.grabber.get().waitForDempsy(60000));
Dempsy dempsy = SimpleAppForTesting.grabber.get().dempsy.get();
// wait for Dempsy to be running
for (long endTime = System.currentTimeMillis() + 60000; endTime > System.currentTimeMillis() && !dempsy.isRunning();) Thread.sleep(1);
assertTrue(dempsy.isRunning());
Thread.sleep(500); // let the thing run for a bit.
dempsy.stop();
// wait for Dempsy to be stopped
for (long endTime = System.currentTimeMillis() + 60000; endTime > System.currentTimeMillis() && dempsy.isRunning();) Thread.sleep(1);
assertFalse(dempsy.isRunning());
assertFalse(failed);
}
public String toString() { return "testNormalStartup"; }
});
}
@Test
public void testNormalStartupTestApp1() throws Throwable
{
System.setProperty(RunNode.applicationParam, "testApp1:test-cluster");
System.clearProperty(RunNode.appdefParam);
testNormalStartup();
}
@Test(expected=FileNotFoundException.class)
public void testNoAppGiven() throws Throwable
{
System.clearProperty(RunNode.appdefParam);
try
{
RunNode.run(new String[0]);
}
catch(Exception e)
{
throw e.getCause();
}
}
@Test(expected=DempsyException.class)
public void testNoClusterGiven() throws Throwable
{
System.clearProperty(RunNode.applicationParam);
RunNode.run(new String[0]);
}
@Test(expected=DempsyException.class)
public void testNoZkConnectGiven() throws Throwable
{
System.clearProperty(RunNode.zk_connectParam);
RunNode.run(new String[0]);
}
@Test(expected=FileNotFoundException.class)
public void testInvalidAppCtxGiven() throws Throwable
{
System.setProperty(RunNode.appdefParam,"IDontExist.xml");
try
{
RunNode.run(new String[0]);
}
catch (Throwable th)
{
throw th.getCause();
}
}
}