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* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.tasks;
import org.elasticsearch.common.UUIDs;
import org.elasticsearch.common.bytes.BytesReference;
import org.elasticsearch.common.io.stream.BytesStreamOutput;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.test.ESTestCase;
import java.io.IOException;
public class TaskIdTests extends ESTestCase {
private static final int ROUNDS = 30;
public void testSerialization() throws IOException {
/*
* The size of the serialized representation of the TaskId doesn't really matter that much because most requests don't contain a
* full TaskId.
*/
int expectedSize = 31; // 8 for the task number, 1 for the string length of the uuid, 22 for the actual uuid
for (int i = 0; i < ROUNDS; i++) {
TaskId taskId = new TaskId(UUIDs.randomBase64UUID(random()), randomInt());
TaskId roundTripped = roundTrip(taskId, expectedSize);
assertNotSame(taskId, roundTripped);
assertEquals(taskId, roundTripped);
assertEquals(taskId.hashCode(), roundTripped.hashCode());
}
}
public void testSerializationOfEmpty() throws IOException {
//The size of the serialized representation of the EMPTY_TASK_ID matters a lot because many requests contain it.
int expectedSize = 1;
TaskId roundTripped = roundTrip(TaskId.EMPTY_TASK_ID, expectedSize);
assertSame(TaskId.EMPTY_TASK_ID, roundTripped);
}
private TaskId roundTrip(TaskId taskId, int expectedSize) throws IOException {
try (BytesStreamOutput out = new BytesStreamOutput()) {
taskId.writeTo(out);
BytesReference bytes = out.bytes();
assertEquals(expectedSize, bytes.length());
try (StreamInput in = bytes.streamInput()) {
return TaskId.readFromStream(in);
}
}
}
}