remoting-core/remoting-impl/src/test/java/org/apache/rocketmq/remoting/impl/command/RequestIdGeneratorTest.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.rocketmq.remoting.impl.command;

import org.junit.Test;

import static org.junit.Assert.assertEquals;

public class RequestIdGeneratorTest {

    @Test
    public void incrementAndGet_Success() {
        int numA = RequestIdGenerator.inst.incrementAndGet();
        int numB = RequestIdGenerator.inst.incrementAndGet();

        assertEquals(numA, numB - 1);
    }
}