ZooKeeperTest.java
/*
* 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;
import static org.apache.zookeeper.KeeperException.Code.NOAUTH;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.junit.jupiter.api.Assertions.fail;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;
import org.apache.zookeeper.AsyncCallback.VoidCallback;
import org.apache.zookeeper.KeeperException.Code;
import org.apache.zookeeper.ZooDefs.Ids;
import org.apache.zookeeper.cli.CliCommand;
import org.apache.zookeeper.cli.CliException;
import org.apache.zookeeper.cli.CliWrapperException;
import org.apache.zookeeper.cli.LsCommand;
import org.apache.zookeeper.cli.MalformedCommandException;
import org.apache.zookeeper.cli.MalformedPathException;
import org.apache.zookeeper.cli.SyncCommand;
import org.apache.zookeeper.cli.WhoAmICommand;
import org.apache.zookeeper.client.ConnectStringParser;
import org.apache.zookeeper.client.HostProvider;
import org.apache.zookeeper.client.StaticHostProvider;
import org.apache.zookeeper.client.ZKClientConfig;
import org.apache.zookeeper.common.StringUtils;
import org.apache.zookeeper.data.ACL;
import org.apache.zookeeper.data.ClientInfo;
import org.apache.zookeeper.data.Id;
import org.apache.zookeeper.data.Stat;
import org.apache.zookeeper.test.ClientBase;
import org.junit.jupiter.api.Test;
/**
*
* Testing ZooKeeper public methods
*
*/
public class ZooKeeperTest extends ClientBase {
private static final String LINE_SEPARATOR = System.getProperty("line.separator", "\n");
@Test
public void testDeleteRecursive() throws IOException, InterruptedException, KeeperException {
final ZooKeeper zk = createClient();
setupDataTree(zk);
assertTrue(ZKUtil.deleteRecursive(zk, "/a/c", 1000));
List<String> children = zk.getChildren("/a", false);
assertEquals(1, children.size(), "1 children - c should be deleted ");
assertTrue(children.contains("b"));
assertTrue(ZKUtil.deleteRecursive(zk, "/a", 1000));
assertNull(zk.exists("/a", null));
}
@Test
public void testDeleteRecursiveFail() throws IOException, InterruptedException, KeeperException {
final ZooKeeper zk = createClient();
setupDataTree(zk);
ACL deleteProtection = new ACL(ZooDefs.Perms.DELETE, new Id("digest", "user:tl+z3z0vO6PfPfEENfLF96E6pM0="/* password is test */));
List<ACL> acls = Arrays.asList(new ACL(ZooDefs.Perms.READ, Ids.ANYONE_ID_UNSAFE), deleteProtection);
// poison the well
zk.create("/a/c/0/surprise", "".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
assertEquals(1, zk.getACL("/a/c/0", new Stat()).size());
zk.setACL("/a/c/0", acls, -1);
assertEquals(2, zk.getACL("/a/c/0", new Stat()).size());
assertFalse(ZKUtil.deleteRecursive(zk, "/a/c", 1000));
List<String> children = zk.getChildren("/a", false);
assertEquals(2, children.size(), "2 children - c should fail to be deleted ");
assertTrue(children.contains("b"));
assertTrue(ZKUtil.deleteRecursive(zk, "/a/b", 1000));
children = zk.getChildren("/a", false);
assertEquals(1, children.size(), "1 children - b should be deleted ");
// acquire immunity to poison
zk.addAuthInfo(deleteProtection.getId().getScheme(), "user:test".getBytes());
assertTrue(ZKUtil.deleteRecursive(zk, "/a", 1000));
assertNull(zk.exists("/a", null));
}
private void setupDataTree(ZooKeeper zk) throws KeeperException, InterruptedException {
// making sure setdata works on /
zk.setData("/", "some".getBytes(), -1);
zk.create("/a", "some".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
zk.create("/a/b", "some".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
zk.create("/a/b/v", "some".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
for (int i = 1000; i < 3000; ++i) {
zk.create("/a/b/v/" + i, "some".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
}
zk.create("/a/c", "some".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
zk.create("/a/c/v", "some".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
for (int i = 0; i < 500; ++i) {
zk.create("/a/c/" + i, "some".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
}
List<String> children = zk.getChildren("/a", false);
assertEquals(2, children.size(), "2 children - b & c should be present ");
assertTrue(children.contains("b"));
assertTrue(children.contains("c"));
}
@Test
public void testDeleteRecursiveCli() throws IOException, InterruptedException, CliException, KeeperException {
final ZooKeeper zk = createClient();
// making sure setdata works on /
zk.setData("/", "some".getBytes(), -1);
zk.create("/a", "some".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
zk.create("/a/b", "some".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
zk.create("/a/b/v", "some".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
zk.create("/a/b/v/1", "some".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
zk.create("/a/c", "some".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
zk.create("/a/c/v", "some".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
List<String> children = zk.getChildren("/a", false);
assertEquals(children.size(), 2, "2 children - b & c should be present ");
assertTrue(children.contains("b"));
assertTrue(children.contains("c"));
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
String cmdstring1 = "deleteall /a";
zkMain.cl.parseCommand(cmdstring1);
assertFalse(zkMain.processZKCmd(zkMain.cl));
assertNull(zk.exists("/a", null));
}
@Test
public void testDeleteRecursiveAsync() throws IOException, InterruptedException, KeeperException {
final ZooKeeper zk = createClient();
// making sure setdata works on /
zk.setData("/", "some".getBytes(), -1);
zk.create("/a", "some".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
zk.create("/a/b", "some".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
zk.create("/a/b/v", "some".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
zk.create("/a/b/v/1", "some".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
zk.create("/a/c", "some".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
zk.create("/a/c/v", "some".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
for (int i = 0; i < 50; ++i) {
zk.create("/a/c/" + i, "some".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
}
List<String> children = zk.getChildren("/a", false);
assertEquals(children.size(), 2, "2 children - b & c should be present ");
assertTrue(children.contains("b"));
assertTrue(children.contains("c"));
VoidCallback cb = new VoidCallback() {
@Override
public void processResult(int rc, String path, Object ctx) {
synchronized (ctx) {
((AtomicInteger) ctx).set(4);
ctx.notify();
}
}
};
final AtomicInteger ctx = new AtomicInteger(3);
ZKUtil.deleteRecursive(zk, "/a", cb, ctx);
synchronized (ctx) {
ctx.wait();
}
assertEquals(4, ctx.get());
}
@Test
public void testStatWhenPathDoesNotExist() throws IOException, InterruptedException, MalformedCommandException {
final ZooKeeper zk = createClient();
ZooKeeperMain main = new ZooKeeperMain(zk);
String cmdstring = "stat /invalidPath";
main.cl.parseCommand(cmdstring);
try {
main.processZKCmd(main.cl);
fail("As Node does not exist, command should fail by throwing No Node Exception.");
} catch (CliException e) {
assertEquals("Node does not exist: /invalidPath", e.getMessage());
}
}
@Test
public void testParseWithExtraSpaces() throws Exception {
final ZooKeeper zk = createClient();
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
String cmdstring = " ls / ";
zkMain.cl.parseCommand(cmdstring);
assertEquals(zkMain.cl.getNumArguments(), 2, "Spaces also considered as characters");
assertEquals(zkMain.cl.getCmdArgument(0), "ls", "ls is not taken as first argument");
assertEquals(zkMain.cl.getCmdArgument(1), "/", "/ is not taken as second argument");
}
@Test
public void testParseWithQuotes() throws Exception {
final ZooKeeper zk = createClient();
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
for (String quoteChar : new String[]{"'", "\""}) {
String cmdstring = String.format("create /node %1$squoted data%1$s", quoteChar);
zkMain.cl.parseCommand(cmdstring);
assertEquals(zkMain.cl.getNumArguments(), 3, "quotes combine arguments");
assertEquals(zkMain.cl.getCmdArgument(0), "create", "create is not taken as first argument");
assertEquals(zkMain.cl.getCmdArgument(1), "/node", "/node is not taken as second argument");
assertEquals(zkMain.cl.getCmdArgument(2), "quoted data", "quoted data is not taken as third argument");
}
}
@Test
public void testParseWithMixedQuotes() throws Exception {
final ZooKeeper zk = createClient();
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
for (String[] quoteChars : new String[][]{{"'", "\""}, {"\"", "'"}}) {
String outerQuotes = quoteChars[0];
String innerQuotes = quoteChars[1];
String cmdstring = String.format("create /node %1$s%2$squoted data%2$s%1$s", outerQuotes, innerQuotes);
zkMain.cl.parseCommand(cmdstring);
assertEquals(zkMain.cl.getNumArguments(), 3, "quotes combine arguments");
assertEquals(zkMain.cl.getCmdArgument(0), "create", "create is not taken as first argument");
assertEquals(zkMain.cl.getCmdArgument(1), "/node", "/node is not taken as second argument");
assertEquals(zkMain.cl.getCmdArgument(2), innerQuotes + "quoted data" + innerQuotes,
"quoted data is not taken as third argument");
}
}
@Test
public void testParseWithEmptyQuotes() throws Exception {
final ZooKeeper zk = createClient();
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
String cmdstring = "create /node ''";
zkMain.cl.parseCommand(cmdstring);
assertEquals(zkMain.cl.getNumArguments(), 3, "empty quotes should produce arguments");
assertEquals(zkMain.cl.getCmdArgument(0), "create", "create is not taken as first argument");
assertEquals(zkMain.cl.getCmdArgument(1), "/node", "/node is not taken as second argument");
assertEquals(zkMain.cl.getCmdArgument(2), "", "empty string is not taken as third argument");
}
@Test
public void testParseWithMultipleQuotes() throws Exception {
final ZooKeeper zk = createClient();
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
String cmdstring = "create /node '' ''";
zkMain.cl.parseCommand(cmdstring);
assertEquals(zkMain.cl.getNumArguments(), 4, "expected 5 arguments");
assertEquals(zkMain.cl.getCmdArgument(0), "create", "create is not taken as first argument");
assertEquals(zkMain.cl.getCmdArgument(1), "/node", "/node is not taken as second argument");
assertEquals(zkMain.cl.getCmdArgument(2), "", "empty string is not taken as third argument");
assertEquals(zkMain.cl.getCmdArgument(3), "", "empty string is not taken as fourth argument");
}
@Test
public void testNonexistentCommand() throws Exception {
testInvalidCommand("cret -s /node1", 127);
}
@Test
public void testCreateCommandWithoutPath() throws Exception {
testInvalidCommand("create", 1);
}
@Test
public void testCreateEphemeralCommandWithoutPath() throws Exception {
testInvalidCommand("create -e ", 1);
}
@Test
public void testCreateSequentialCommandWithoutPath() throws Exception {
testInvalidCommand("create -s ", 1);
}
@Test
public void testCreateEphemeralSequentialCommandWithoutPath() throws Exception {
testInvalidCommand("create -s -e ", 1);
}
private void testInvalidCommand(String cmdString, int exitCode) throws Exception {
final ZooKeeper zk = createClient();
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
zkMain.cl.parseCommand(cmdString);
// Verify that the exit code is set properly
zkMain.processCmd(zkMain.cl);
assertEquals(exitCode, zkMain.exitCode);
// Verify that the correct exception is thrown
try {
zkMain.processZKCmd(zkMain.cl);
fail();
} catch (CliException e) {
return;
}
fail("invalid command should throw CliException");
}
@Test
public void testCreateNodeWithoutData() throws Exception {
final ZooKeeper zk = createClient();
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
// create persistent sequential node
String cmdstring = "create -s /node ";
zkMain.cl.parseCommand(cmdstring);
assertTrue(zkMain.processZKCmd(zkMain.cl), "Doesn't create node without data");
// create ephemeral node
cmdstring = "create -e /node ";
zkMain.cl.parseCommand(cmdstring);
assertTrue(zkMain.processZKCmd(zkMain.cl), "Doesn't create node without data");
// create ephemeral sequential node
cmdstring = "create -s -e /node ";
zkMain.cl.parseCommand(cmdstring);
assertTrue(zkMain.processZKCmd(zkMain.cl), "Doesn't create node without data");
// creating ephemeral with wrong option.
cmdstring = "create -s y /node";
zkMain.cl.parseCommand(cmdstring);
try {
assertTrue(zkMain.processZKCmd(zkMain.cl), "Created node with wrong option");
fail("Created the node with wrong option should " + "throw Exception.");
} catch (MalformedPathException e) {
assertEquals("Path must start with / character", e.getMessage());
}
}
@Test
public void testACLWithExtraArguments() throws Exception {
final ZooKeeper zk = createClient();
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
// create persistent sequential node
String cmdstring = "create -s /l data ip:10.18.52.144:cdrwa f g h";
zkMain.cl.parseCommand(cmdstring);
assertTrue(zkMain.processZKCmd(zkMain.cl), "Not considering the extra arguments after the acls.");
}
@Test
public void testCreatePersistentNode() throws Exception {
final ZooKeeper zk = createClient();
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
String cmdstring = "create /node2";
zkMain.cl.parseCommand(cmdstring);
assertTrue(zkMain.processZKCmd(zkMain.cl), "Not creating Persistent node.");
}
@Test
public void testDelete() throws Exception {
final ZooKeeper zk = createClient();
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
String cmdstring1 = "create -e /node2 data";
String cmdstring2 = "delete /node2";
String cmdstring3 = "ls /node2";
zkMain.cl.parseCommand(cmdstring1);
assertTrue(zkMain.processZKCmd(zkMain.cl));
zkMain.cl.parseCommand(cmdstring2);
assertFalse(zkMain.processZKCmd(zkMain.cl));
zkMain.cl.parseCommand(cmdstring3);
assertFalse(zkMain.processCmd(zkMain.cl), "");
}
@Test
public void testDeleteNonexistentNode() throws Exception {
testInvalidCommand("delete /blahblahblah", 1);
}
@Test
public void testStatCommand() throws Exception {
final ZooKeeper zk = createClient();
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
String cmdstring1 = "create -e /node3 data";
String cmdstring2 = "stat /node3";
String cmdstring3 = "delete /node3";
zkMain.cl.parseCommand(cmdstring1);
assertTrue(zkMain.processZKCmd(zkMain.cl));
zkMain.cl.parseCommand(cmdstring2);
assertFalse(zkMain.processZKCmd(zkMain.cl));
zkMain.cl.parseCommand(cmdstring3);
assertFalse(zkMain.processZKCmd(zkMain.cl));
}
@Test
public void testInvalidStatCommand() throws Exception {
final ZooKeeper zk = createClient();
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
// node doesn't exists
String cmdstring1 = "stat /node123";
zkMain.cl.parseCommand(cmdstring1);
try {
assertFalse(zkMain.processZKCmd(zkMain.cl));
fail("Path doesn't exists so, command should fail.");
} catch (CliWrapperException e) {
assertEquals(KeeperException.Code.NONODE, ((KeeperException) e.getCause()).code());
}
}
@Test
public void testSetData() throws Exception {
final ZooKeeper zk = createClient();
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
String cmdstring1 = "create -e /node4 data";
String cmdstring2 = "set /node4 " + "data";
String cmdstring3 = "delete /node4";
Stat stat = new Stat();
int version = 0;
zkMain.cl.parseCommand(cmdstring1);
assertTrue(zkMain.processZKCmd(zkMain.cl));
stat = zk.exists("/node4", true);
version = stat.getVersion();
zkMain.cl.parseCommand(cmdstring2);
assertFalse(zkMain.processZKCmd(zkMain.cl));
stat = zk.exists("/node4", true);
assertEquals(version + 1, stat.getVersion());
zkMain.cl.parseCommand(cmdstring3);
assertFalse(zkMain.processZKCmd(zkMain.cl));
}
@Test
public void testCheckInvalidAcls() throws Exception {
final ZooKeeper zk = createClient();
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
String cmdstring = "create -s -e /node data ip:scheme:gggsd"; //invalid acl's
// For Invalid ACls should not throw exception
zkMain.executeLine(cmdstring);
}
@Test
public void testDeleteWithInvalidVersionNo() throws Exception {
final ZooKeeper zk = createClient();
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
String cmdstring = "create -s -e /node1 data ";
String cmdstring1 = "delete /node1 2"; //invalid dataversion no
zkMain.executeLine(cmdstring);
// For Invalid dataversion number should not throw exception
zkMain.executeLine(cmdstring1);
}
@Test
public void testCliCommandsNotEchoingUsage() throws Exception {
// setup redirect out/err streams to get System.in/err, use this judiciously!
final PrintStream systemErr = System.err; // get current err
final ByteArrayOutputStream errContent = new ByteArrayOutputStream();
System.setErr(new PrintStream(errContent));
final ZooKeeper zk = createClient();
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
String cmd1 = "printwatches";
zkMain.executeLine(cmd1);
String cmd2 = "history";
zkMain.executeLine(cmd2);
String cmd3 = "redo";
zkMain.executeLine(cmd3);
// revert redirect of out/err streams - important step!
System.setErr(systemErr);
if (errContent.toString().contains("ZooKeeper -server host:port cmd args")) {
fail("CLI commands (history, redo, connect, printwatches) display usage info!");
}
}
// ZOOKEEPER-2467 : Testing negative number for redo command
@Test
public void testRedoWithNegativeCmdNumber() throws Exception {
final ZooKeeper zk = createClient();
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
String cmd1 = "redo -1";
String result = executeLine(zkMain, cmd1);
assertEquals("Command index out of range", result);
}
private String executeLine(ZooKeeperMain zkMain, String cmd)
throws InterruptedException, IOException {
// setup redirect out/err streams to get System.in/err, use this
// judiciously!
final PrintStream systemErr = System.err; // get current err
final ByteArrayOutputStream errContent = new ByteArrayOutputStream();
System.setErr(new PrintStream(errContent));
try {
zkMain.executeLine(cmd);
return errContent.toString().trim();
} finally {
// revert redirect of out/err streams - important step!
System.setErr(systemErr);
}
}
private static void runCommandExpect(CliCommand command, List<String> expectedResults) throws Exception {
String result = runCommandExpect(command);
assertTrue(result.contains(StringUtils.joinStrings(expectedResults, LINE_SEPARATOR)), result);
}
private static String runCommandExpect(CliCommand command) throws CliException {
// call command and put result in byteStream
ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
PrintStream out = new PrintStream(byteStream);
command.setOut(out);
command.exec();
return byteStream.toString();
}
@Test
public void testSortedLs() throws Exception {
final ZooKeeper zk = createClient();
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
zkMain.executeLine("create /aa1");
zkMain.executeLine("create /aa2");
zkMain.executeLine("create /aa3");
zkMain.executeLine("create /test1");
zkMain.executeLine("create /zk1");
LsCommand cmd = new LsCommand();
cmd.setZk(zk);
cmd.parse("ls /".split(" "));
List<String> expected = new ArrayList<>();
expected.add("[aa1, aa2, aa3, test1, zk1, zookeeper]");
runCommandExpect(cmd, expected);
}
@Test
public void testLsrCommand() throws Exception {
final ZooKeeper zk = createClient();
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
zkMain.executeLine("create /a");
zkMain.executeLine("create /a/b");
zkMain.executeLine("create /a/c");
zkMain.executeLine("create /a/b/d");
zkMain.executeLine("create /a/c/e");
zkMain.executeLine("create /a/f");
LsCommand cmd = new LsCommand();
cmd.setZk(zk);
cmd.parse("ls -R /a".split(" "));
List<String> expected = new ArrayList<>();
expected.add("/a");
expected.add("/a/b");
expected.add("/a/c");
expected.add("/a/f");
expected.add("/a/b/d");
expected.add("/a/c/e");
runCommandExpect(cmd, expected);
}
@Test
public void testLsrRootCommand() throws Exception {
final ZooKeeper zk = createClient();
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
LsCommand cmd = new LsCommand();
cmd.setZk(zk);
cmd.parse("ls -R /".split(" "));
List<String> expected = new ArrayList<>();
expected.add("/");
expected.add("/zookeeper");
runCommandExpect(cmd, expected);
}
@Test
public void testLsrLeafCommand() throws Exception {
final ZooKeeper zk = createClient();
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
zkMain.executeLine("create /b");
zkMain.executeLine("create /b/c");
LsCommand cmd = new LsCommand();
cmd.setZk(zk);
cmd.parse("ls -R /b/c".split(" "));
List<String> expected = new ArrayList<>();
expected.add("/b/c");
runCommandExpect(cmd, expected);
}
@Test
public void testLsrNonexistentZnodeCommand() throws Exception {
final ZooKeeper zk = createClient();
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
zkMain.executeLine("create /b");
zkMain.executeLine("create /b/c");
LsCommand cmd = new LsCommand();
cmd.setZk(zk);
cmd.parse("ls -R /b/c/d".split(" "));
try {
runCommandExpect(cmd, new ArrayList<>());
fail("Path doesn't exists so, command should fail.");
} catch (CliWrapperException e) {
assertEquals(KeeperException.Code.NONODE, ((KeeperException) e.getCause()).code());
}
}
@Test
public void testSetAclRecursive() throws Exception {
final ZooKeeper zk = createClient();
final byte[] EMPTY = new byte[0];
zk.setData("/", EMPTY, -1);
zk.create("/a", EMPTY, Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
zk.create("/a/b", EMPTY, Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
zk.create("/a/b/c", EMPTY, Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
zk.create("/a/d", EMPTY, Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
zk.create("/e", EMPTY, Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
String setAclCommand = "setAcl -R /a world:anyone:r";
zkMain.cl.parseCommand(setAclCommand);
assertFalse(zkMain.processZKCmd(zkMain.cl));
assertEquals(Ids.READ_ACL_UNSAFE, zk.getACL("/a", new Stat()));
assertEquals(Ids.READ_ACL_UNSAFE, zk.getACL("/a/b", new Stat()));
assertEquals(Ids.READ_ACL_UNSAFE, zk.getACL("/a/b/c", new Stat()));
assertEquals(Ids.READ_ACL_UNSAFE, zk.getACL("/a/d", new Stat()));
// /e is unset, its acl should remain the same.
assertEquals(Ids.OPEN_ACL_UNSAFE, zk.getACL("/e", new Stat()));
}
@Test
public void testClientReconnectWithZKClientConfig() throws Exception {
ZooKeeper zk = null;
ZooKeeper newZKClient = null;
try {
zk = createClient();
ZKClientConfig clientConfig = new ZKClientConfig();
clientConfig.setProperty(ZKClientConfig.ZOOKEEPER_CLIENT_CNXN_SOCKET, "org.apache.zookeeper.ClientCnxnSocketNetty");
CountdownWatcher watcher = new CountdownWatcher();
HostProvider aHostProvider = new StaticHostProvider(new ConnectStringParser(hostPort).getServerAddresses());
newZKClient = new ZooKeeper(
hostPort,
zk.getSessionTimeout(),
watcher,
zk.getSessionId(),
zk.getSessionPasswd(),
false,
aHostProvider,
clientConfig);
watcher.waitForConnected(CONNECTION_TIMEOUT);
assertEquals(zk.getSessionId(), newZKClient.getSessionId(), "Old client session id and new client session id must be same");
} finally {
zk.close();
newZKClient.close();
}
}
@Test
public void testSyncCommand() throws Exception {
final ZooKeeper zk = createClient();
SyncCommand cmd = new SyncCommand();
cmd.setZk(zk);
cmd.parse("sync /".split(" "));
List<String> expected = new ArrayList<>();
expected.add("Sync is OK");
runCommandExpect(cmd, expected);
}
@Test
public void testInsufficientPermission() throws Exception {
final ZooKeeper zk = createClient();
zk.create("/permZNode", "".getBytes(), Ids.READ_ACL_UNSAFE, CreateMode.PERSISTENT);
ZooKeeperMain zkMain = new ZooKeeperMain(zk);
String zNodeToBeCreated = "/permZNode/child1";
String errorMessage = executeLine(zkMain, "create " + zNodeToBeCreated);
assertEquals("Insufficient permission : " + zNodeToBeCreated, errorMessage);
// Test Get command error message when there is not read access
List<ACL> writeAcl = Arrays.asList(new ACL(ZooDefs.Perms.WRITE, Ids.ANYONE_ID_UNSAFE));
String noReadPermZNodePath = "/noReadPermZNode";
zk.create(noReadPermZNodePath, "newData".getBytes(), writeAcl, CreateMode.PERSISTENT);
errorMessage = executeLine(zkMain, "get " + noReadPermZNodePath);
assertEquals("Insufficient permission : " + noReadPermZNodePath, errorMessage);
}
@Test
public void testWhoAmIAPI() throws Exception {
final ZooKeeper zk = createClient();
// Check who ami without authentication/without any user into the session
List<ClientInfo> clientInfos = zk.whoAmI();
// By default server adds ip as the authentication info
assertEquals(1, clientInfos.size());
assertEquals("ip", clientInfos.get(0).getAuthScheme());
// Add one user into the session
zk.addAuthInfo("digest", "user1:abcXYZ".getBytes());
clientInfos = zk.whoAmI();
assertEquals(2, clientInfos.size());
ClientInfo user1 = getClientInfos(clientInfos, "user1");
assertEquals("digest", user1.getAuthScheme());
// Add one more user into the session
zk.addAuthInfo("digest", "user2:xyzABC".getBytes());
clientInfos = zk.whoAmI();
assertEquals(3, clientInfos.size());
user1 = getClientInfos(clientInfos, "user1");
assertEquals("digest", user1.getAuthScheme());
ClientInfo user2 = getClientInfos(clientInfos, "user2");
assertEquals("digest", user2.getAuthScheme());
}
private ClientInfo getClientInfos(List<ClientInfo> clientInfos, String user) {
for (ClientInfo clientInfo : clientInfos) {
if (clientInfo.getUser().equals(user)) {
return clientInfo;
}
}
throw new AssertionError("User +" + user + " not found");
}
@Test
public void testWhoAmICLICommand() throws Exception {
final ZooKeeper zk = createClient();
WhoAmICommand cmd = new WhoAmICommand();
cmd.setZk(zk);
List<String> expectedResults = new ArrayList<>();
expectedResults.add("Auth scheme: User");
expectedResults.add("ip: 127.0.0.1");
// Check who ami without authentication/without any user into the session
cmd.parse(new String[] { "whoami" });
String actualResult = runCommandExpect(cmd);
assertClientAuthInfo(expectedResults, actualResult);
// Add one user into the session
zk.addAuthInfo("digest", "user1:abcXYZ".getBytes());
expectedResults.add("digest: user1");
actualResult = runCommandExpect(cmd);
assertClientAuthInfo(expectedResults, actualResult);
// Add one more user into the session
zk.addAuthInfo("digest", "user2:xyzABC".getBytes());
expectedResults.add("digest: user2");
actualResult = runCommandExpect(cmd);
assertClientAuthInfo(expectedResults, actualResult);
}
private void assertClientAuthInfo(List<String> expected, String actual) {
expected.forEach(s -> {
assertTrue(actual.contains(s),
"Expected result part '" + s + "' not present in actual result '" + actual + "' ");
});
}
@Test
public void testWaitForConnection() throws Exception {
// get a wrong port number
int invalidPort = PortAssignment.unique();
long timeout = 3000L; // millisecond
String[] args1 = {"-server", "localhost:" + invalidPort, "-timeout",
Long.toString(timeout), "-waitforconnection", "ls", "/"};
long startTime = System.currentTimeMillis();
// try to connect to a non-existing server so as to wait until wait_timeout
try {
ZooKeeperMain zkMain = new ZooKeeperMain(args1);
fail("IOException was expected");
} catch (IOException e) {
// do nothing
}
long endTime = System.currentTimeMillis();
assertTrue(endTime - startTime >= timeout,
"ZooKeeeperMain does not wait until the specified timeout");
}
@Test
public void testKeeperExceptionCreateNPE() {
// One existing code
KeeperException k1 = KeeperException.create(Code.get(NOAUTH.intValue()));
assertTrue(k1 instanceof KeeperException.NoAuthException);
// One impossible code
assertThrows(IllegalArgumentException.class, () -> KeeperException.create(Code.get(Integer.MAX_VALUE)));
}
}