@@ -0,0 +1,1317 @@
+/*%0A * Copyright 1999-2020 Alibaba Group Holding Ltd.%0A *%0A * Licensed under the Apache License, Version 2.0 (the %22License%22);%0A * you may not use this file except in compliance with the License.%0A * You may obtain a copy of the License at%0A *%0A *      http://www.apache.org/licenses/LICENSE-2.0%0A *%0A * Unless required by applicable law or agreed to in writing, software%0A * distributed under the License is distributed on an %22AS IS%22 BASIS,%0A * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.%0A * See the License for the specific language governing permissions and%0A * limitations under the License.%0A */%0A%0Apackage com.alibaba.nacos.naming.push.v1;%0A%0Aimport com.alibaba.nacos.naming.core.Service;%0Aimport org.junit.Assert;%0Aimport org.junit.Test;%0Aimport org.junit.runner.RunWith;%0Aimport org.mockito.Mock;%0Aimport org.mockito.junit.MockitoJUnitRunner;%0A%0A@RunWith(MockitoJUnitRunner.class)%0Apublic class ServiceChangeEventTest %7B%0A    %0A    @Mock%0A    private Service service;%0A    %0A    @Mock%0A    private Object object;%0A    %0A    @Test%0A    public void testGetService() %7B%0A        ServiceChangeEvent serviceChangeEvent = new ServiceChangeEvent(object, service);%0A        Service service = serviceChangeEvent.getService();%0A        %0A        Assert.assertNotNull(service);%0A        Assert.assertEquals(service, service);%0A    %7D%0A%7D

add unit test for ServiceChangeEvent (#5714)