/**
* 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.
*/
package org.apache.zookeeper.server.quorum;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashSet;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.apache.zookeeper.AsyncCallback.VoidCallback;
import org.apache.zookeeper.CreateMode;
import org.apache.zookeeper.TestableZooKeeper;
import org.apache.zookeeper.ZooDefs.Ids;
import org.apache.zookeeper.data.Stat;
import org.apache.zookeeper.server.quorum.QuorumPeer.ServerState;
import org.apache.zookeeper.test.QuorumBase;
@RunWith(Parameterized.class)
public class QuorumRequestPipelineTest extends QuorumBase {
protected ServerState serverState;
protected final CountDownLatch callComplete = new CountDownLatch(1);
protected boolean complete = false;
protected final static String PARENT_PATH = "/foo";
protected final static HashSet<String> CHILDREN = new HashSet<String>(Arrays.asList("1", "2", "3"));
protected final static String AUTH_PROVIDER = "digest";
protected final static byte[] AUTH = "hello".getBytes();
protected final static byte[] DATA = "Hint Water".getBytes();
protected TestableZooKeeper zkClient;
@Parameterized.Parameters
public static Collection<Object[]> data() {
return Arrays.asList(
new Object[][] {
{ServerState.LEADING},
{ServerState.FOLLOWING},
{ServerState.OBSERVING}});
}
public QuorumRequestPipelineTest(ServerState state) {
this.serverState = state;
}
@Before
public void setUp() throws Exception {
CountdownWatcher clientWatch = new CountdownWatcher();
super.setUp(true);
zkClient = createClient(clientWatch, getPeersMatching(serverState));
zkClient.addAuthInfo(AUTH_PROVIDER, AUTH);
clientWatch.waitForConnected(CONNECTION_TIMEOUT);
}
@After
public void tearDown() throws Exception {
zkClient.close();
super.tearDown();
}
private Stat create2EmptyNode(TestableZooKeeper zkClient, String path) throws Exception {
Stat stat = new Stat();
zkClient.create(path, null, Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT, stat);
return stat;
}
@Test
public void testCreate() throws Exception {
zkClient.create(PARENT_PATH, DATA, Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
Assert.assertArrayEquals(
String.format("%s Node created (create) with expected value", serverState),
DATA,
zkClient.getData(PARENT_PATH, false, null));
}
@Test
public void testCreate2() throws Exception {
zkClient.create(PARENT_PATH, DATA, Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT, null);
Assert.assertArrayEquals(
String.format("%s Node created (create2) with expected value", serverState),
DATA,
zkClient.getData(PARENT_PATH, false, null));
}
@Test
public void testDelete() throws Exception {
create2EmptyNode(zkClient, PARENT_PATH);
zkClient.delete(PARENT_PATH, -1);
Assert.assertNull(
String.format("%s Node no longer exists", serverState),
zkClient.exists(PARENT_PATH, false));
}
@Test
public void testExists() throws Exception {
Stat stat = create2EmptyNode(zkClient, PARENT_PATH);
Assert.assertEquals(
String.format("%s Exists returns correct node stat", serverState),
stat,
zkClient.exists(PARENT_PATH, false));
}
@Test
public void testSetAndGetData() throws Exception {
create2EmptyNode(zkClient, PARENT_PATH);
zkClient.setData(PARENT_PATH, DATA, -1);
Assert.assertArrayEquals(
String.format("%s Node updated with expected value", serverState),
DATA,
zkClient.getData(PARENT_PATH, false, null));
}
@Test
public void testSetAndGetACL() throws Exception {
create2EmptyNode(zkClient, PARENT_PATH);
Assert.assertEquals(
String.format("%s Node has open ACL", serverState),
Ids.OPEN_ACL_UNSAFE,
zkClient.getACL(PARENT_PATH, new Stat()));
zkClient.setACL(PARENT_PATH, Ids.READ_ACL_UNSAFE, -1);
Assert.assertEquals(
String.format("%s Node has world read-only ACL", serverState),
Ids.READ_ACL_UNSAFE,
zkClient.getACL(PARENT_PATH, new Stat()));
}
@Test
public void testSetAndGetChildren() throws Exception {
create2EmptyNode(zkClient, PARENT_PATH);
for (String child : CHILDREN) {
create2EmptyNode(zkClient, PARENT_PATH + "/" + child);
}
Assert.assertEquals(
String.format("%s Parent has expected children", serverState),
CHILDREN,
new HashSet<String>(zkClient.getChildren(PARENT_PATH, false)));
}
@Test
public void testSetAndGetChildren2() throws Exception {
create2EmptyNode(zkClient, PARENT_PATH);
for (String child : CHILDREN) {
create2EmptyNode(zkClient, PARENT_PATH + "/" + child);
}
Assert.assertEquals(
String.format("%s Parent has expected children", serverState),
CHILDREN,
new HashSet<String>(zkClient.getChildren(PARENT_PATH, false, null)));
}
@Test
public void testSync() throws Exception {
complete = false;
create2EmptyNode(zkClient, PARENT_PATH);
VoidCallback onSync = new VoidCallback() {
@Override
public void processResult(int rc, String path, Object ctx) {
complete = true;
callComplete.countDown();
}
};
zkClient.sync(PARENT_PATH, onSync, null);
callComplete.await(30, TimeUnit.SECONDS);
Assert.assertTrue(
String.format("%s Sync completed", serverState),
complete);
}
}