/*
 * Copyright 1999-2025 Alibaba Group Holding Ltd.
 *
 * Licensed 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.alibaba.nacos.core.remote.grpc;

import org.junit.jupiter.api.Test;

import java.lang.reflect.Field;
import java.util.concurrent.atomic.AtomicLong;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;

class PushAckIdGeneratorTest {

    @Test
    void testGetNextIdIncrements() {
        long id1 = PushAckIdGenerator.getNextId();
        long id2 = PushAckIdGenerator.getNextId();
        assertTrue(id2 > id1);
    }

    @Test
    void testGetNextIdResetWhenNearMaxValue() throws Exception {
        Field idField = PushAckIdGenerator.class.getDeclaredField("id");
        idField.setAccessible(true);
        idField.set(null, new AtomicLong(Long.MAX_VALUE - 500L));
        long id = PushAckIdGenerator.getNextId();
        assertEquals(1L, id);
    }
}
