ZxidTest.java

/**
 * Licensed to the zk1931 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 com.github.zk1931.jzab;

import java.io.IOException;
import org.junit.Assert;
import org.junit.Test;

/**
 *  Test Zxid.
 */
public class ZxidTest extends TestBase {
  @Test
  public void cmpTest() {
    Zxid z1 = new Zxid(1, 0);
    Zxid z2 = new Zxid(1, 0);
    Assert.assertTrue(z1.compareTo(z2) == 0);

    z1 = new Zxid(1, 0);
    z2 = new Zxid(1, 1);
    Assert.assertTrue(z1.compareTo(z2) < 0);

    z1 = new Zxid(2, 0);
    z2 = new Zxid(1, 1);
    Assert.assertTrue(z1.compareTo(z2) > 0);
  }

  @Test
  public void serializeTest() throws IOException {
    Zxid z1 = new Zxid(1, 20);
    byte[] bytes = z1.toByteArray();
    Assert.assertEquals(bytes.length, 16);
    Zxid z2 = Zxid.fromByteArray(bytes);
    Assert.assertTrue(z1.compareTo(z2) == 0);
  }

  @Test
  public void toStringTest() {
    Zxid z = new Zxid(10, 3);
    Assert.assertEquals("Zxid [epoch: 10, xid: 3]", z.toString());
  }
}