[ISSUE #5520] Add unit tests for package com.alibaba.nacos.naming.core.v2.cleaner in nacos2.0. (#6401)

* [ISSUE #5520] add unit test for EmptyServiceAutoCleaner.

* [ISSUE #5520] add unit test for EmptyServiceAutoCleanerV2.

naming/src/test/java/com/alibaba/nacos/naming/core/v2/cleaner/EmptyServiceAutoCleanerTest.java

@@ -0,0 +1,75 @@
+/*
+ *  Copyright 1999-2021 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.naming.core.v2.cleaner;
+
+import com.alibaba.nacos.naming.core.DistroMapper;
+import com.alibaba.nacos.naming.core.Service;
+import com.alibaba.nacos.naming.core.ServiceManager;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.junit.MockitoJUnitRunner;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * {@link EmptyServiceAutoCleaner} unit test.
+ *
+ * @author chenglu
+ * @date 2021-07-21 12:31
+ */
+@RunWith(MockitoJUnitRunner.class)
+public class EmptyServiceAutoCleanerTest {
+    
+    @Mock
+    private ServiceManager serviceManager;
+    
+    @Mock
+    private DistroMapper distroMapper;
+    
+    private EmptyServiceAutoCleaner emptyServiceAutoCleaner;
+    
+    @Before
+    public void setUp() {
+        emptyServiceAutoCleaner = new EmptyServiceAutoCleaner(serviceManager, distroMapper);
+    }
+    
+    @Test
+    public void testRun() {
+        try {
+            Mockito.when(serviceManager.getAllNamespaces()).thenReturn(Collections.singleton("test"));
+            
+            Map<String, Service> serviceMap = new HashMap<>(2);
+            Service service = new Service();
+            serviceMap.put("test", service);
+            Mockito.when(serviceManager.chooseServiceMap(Mockito.anyString())).thenReturn(serviceMap);
+            
+            Mockito.when(distroMapper.responsible(Mockito.anyString())).thenReturn(true);
+            
+            emptyServiceAutoCleaner.run();
+        } catch (Exception e) {
+            e.printStackTrace();
+            Assert.fail(e.getMessage());
+        }
+    }
+}

naming/src/test/java/com/alibaba/nacos/naming/core/v2/cleaner/EmptyServiceAutoCleanerV2Test.java

@@ -0,0 +1,89 @@
+/*
+ *  Copyright 1999-2021 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.naming.core.v2.cleaner;
+
+import com.alibaba.nacos.naming.core.v2.ServiceManager;
+import com.alibaba.nacos.naming.core.v2.index.ClientServiceIndexesManager;
+import com.alibaba.nacos.naming.core.v2.index.ServiceStorage;
+import com.alibaba.nacos.naming.core.v2.pojo.Service;
+import com.alibaba.nacos.sys.env.EnvUtil;
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.junit.MockitoJUnitRunner;
+import org.springframework.mock.env.MockEnvironment;
+
+import java.util.Collections;
+
+/**
+ * {@link EmptyServiceAutoCleanerV2} unit test.
+ *
+ * @author chenglu
+ * @date 2021-07-21 12:40
+ */
+@RunWith(MockitoJUnitRunner.class)
+public class EmptyServiceAutoCleanerV2Test {
+    
+    @Mock
+    private ClientServiceIndexesManager clientServiceIndexesManager;
+    
+    @Mock
+    private ServiceStorage serviceStorage;
+    
+    private EmptyServiceAutoCleanerV2 emptyServiceAutoCleanerV2;
+    
+    @Mock
+    private Service service;
+    
+    @Before
+    public void setUp() {
+        EnvUtil.setEnvironment(new MockEnvironment());
+        emptyServiceAutoCleanerV2 = new EmptyServiceAutoCleanerV2(clientServiceIndexesManager, serviceStorage);
+        Mockito.when(service.getNamespace()).thenReturn("public");
+        ServiceManager serviceManager = ServiceManager.getInstance();
+        serviceManager.getSingleton(service);
+    }
+    
+    @After
+    public void tearDown() {
+        ServiceManager.getInstance().removeSingleton(service);
+    }
+    
+    @Test
+    public void testGetType() {
+        Assert.assertEquals("emptyService", emptyServiceAutoCleanerV2.getType());
+    }
+    
+    @Test
+    public void testDoClean() {
+        try {
+            Mockito.when(clientServiceIndexesManager.getAllClientsRegisteredService(Mockito.any())).thenReturn(Collections.emptyList());
+            
+            Mockito.when(service.getLastUpdatedTime()).thenReturn(0L);
+            
+            emptyServiceAutoCleanerV2.doClean();
+        } catch (Exception e) {
+            e.printStackTrace();
+            Assert.fail(e.getMessage());
+        }
+    }
+}