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/*
* 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 static org.junit.jupiter.api.Assertions.assertArrayEquals;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertTrue;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.stream.Stream;
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;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.Arguments;
import org.junit.jupiter.params.provider.MethodSource;
public class QuorumRequestPipelineTest extends QuorumBase {
protected final CountDownLatch callComplete = new CountDownLatch(1);
protected boolean complete = false;
protected static final String PARENT_PATH = "/foo";
protected static final Set<String> CHILDREN = new HashSet<String>(Arrays.asList("1", "2", "3"));
protected static final String AUTH_PROVIDER = "digest";
protected static final byte[] AUTH = "hello".getBytes();
protected static final byte[] DATA = "Hint Water".getBytes();
protected TestableZooKeeper zkClient;
public static Stream<Arguments> data() throws Exception {
return Stream.of(
Arguments.of(ServerState.LEADING),
Arguments.of(ServerState.FOLLOWING),
Arguments.of(ServerState.OBSERVING));
}
@BeforeEach
@Override
public void setUp() {
//since parameterized test methods need a parameterized setUp method
//the inherited method has to be overridden with an empty function body
}
public void setUp(ServerState serverState) throws Exception {
CountdownWatcher clientWatch = new CountdownWatcher();
super.setUp(true, true);
zkClient = createClient(clientWatch, getPeersMatching(serverState));
zkClient.addAuthInfo(AUTH_PROVIDER, AUTH);
clientWatch.waitForConnected(CONNECTION_TIMEOUT);
}
@AfterEach
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;
}
@ParameterizedTest
@MethodSource("data")
public void testCreate(ServerState serverState) throws Exception {
setUp(serverState);
zkClient.create(PARENT_PATH, DATA, Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
assertArrayEquals(DATA, zkClient.getData(PARENT_PATH, false, null), String.format("%s Node created (create) with expected value", serverState));
}
@ParameterizedTest
@MethodSource("data")
public void testCreate2(ServerState serverState) throws Exception {
setUp(serverState);
zkClient.create(PARENT_PATH, DATA, Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT, null);
assertArrayEquals(DATA, zkClient.getData(PARENT_PATH, false, null), String.format("%s Node created (create2) with expected value", serverState));
}
@ParameterizedTest
@MethodSource("data")
public void testDelete(ServerState serverState) throws Exception {
setUp(serverState);
create2EmptyNode(zkClient, PARENT_PATH);
zkClient.delete(PARENT_PATH, -1);
assertNull(zkClient.exists(PARENT_PATH, false), String.format("%s Node no longer exists", serverState));
}
@ParameterizedTest
@MethodSource("data")
public void testExists(ServerState serverState) throws Exception {
setUp(serverState);
Stat stat = create2EmptyNode(zkClient, PARENT_PATH);
assertEquals(stat, zkClient.exists(PARENT_PATH, false), String.format("%s Exists returns correct node stat", serverState));
}
@ParameterizedTest
@MethodSource("data")
public void testSetAndGetData(ServerState serverState) throws Exception {
setUp(serverState);
create2EmptyNode(zkClient, PARENT_PATH);
zkClient.setData(PARENT_PATH, DATA, -1);
assertArrayEquals(DATA, zkClient.getData(PARENT_PATH, false, null), String.format("%s Node updated with expected value", serverState));
}
@ParameterizedTest
@MethodSource("data")
public void testSetAndGetACL(ServerState serverState) throws Exception {
setUp(serverState);
create2EmptyNode(zkClient, PARENT_PATH);
assertEquals(Ids.OPEN_ACL_UNSAFE, zkClient.getACL(PARENT_PATH, new Stat()), String.format("%s Node has open ACL", serverState));
zkClient.setACL(PARENT_PATH, Ids.READ_ACL_UNSAFE, -1);
assertEquals(Ids.READ_ACL_UNSAFE, zkClient.getACL(PARENT_PATH, new Stat()), String.format("%s Node has world read-only ACL", serverState));
}
@ParameterizedTest
@MethodSource("data")
public void testSetAndGetChildren(ServerState serverState) throws Exception {
setUp(serverState);
create2EmptyNode(zkClient, PARENT_PATH);
for (String child : CHILDREN) {
create2EmptyNode(zkClient, PARENT_PATH + "/" + child);
}
assertEquals(CHILDREN, new HashSet<String>(zkClient.getChildren(PARENT_PATH, false)), String.format("%s Parent has expected children", serverState));
}
@ParameterizedTest
@MethodSource("data")
public void testSetAndGetChildren2(ServerState serverState) throws Exception {
setUp(serverState);
create2EmptyNode(zkClient, PARENT_PATH);
for (String child : CHILDREN) {
create2EmptyNode(zkClient, PARENT_PATH + "/" + child);
}
assertEquals(CHILDREN, new HashSet<String>(zkClient.getChildren(PARENT_PATH, false, null)), String.format("%s Parent has expected children", serverState));
}
@ParameterizedTest
@MethodSource("data")
public void testSync(ServerState serverState) throws Exception {
setUp(serverState);
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);
assertTrue(complete, String.format("%s Sync completed", serverState));
}
}
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