content: /*
   * 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.consistency.ephemeral.distro.v2;
  
  import com.alibaba.nacos.api.exception.NacosException;
  import com.alibaba.nacos.api.remote.RequestCallBack;
  import com.alibaba.nacos.api.remote.response.Response;
  import com.alibaba.nacos.api.remote.response.ResponseCode;
  import com.alibaba.nacos.core.cluster.Member;
  import com.alibaba.nacos.api.common.NodeState;
  import com.alibaba.nacos.core.cluster.ServerMemberManager;
  import com.alibaba.nacos.core.cluster.remote.ClusterRpcClientProxy;
  import com.alibaba.nacos.core.distributed.distro.component.DistroCallback;
  import com.alibaba.nacos.core.distributed.distro.entity.DistroData;
  import com.alibaba.nacos.core.distributed.distro.entity.DistroKey;
  import com.alibaba.nacos.core.distributed.distro.exception.DistroException;
  import com.alibaba.nacos.naming.cluster.remote.response.DistroDataResponse;
  import com.alibaba.nacos.sys.env.EnvUtil;
  import com.alibaba.nacos.sys.utils.ApplicationUtils;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.extension.ExtendWith;
  import org.mockito.InjectMocks;
  import org.mockito.Mock;
  import org.mockito.junit.jupiter.MockitoExtension;
  import org.mockito.junit.jupiter.MockitoSettings;
  import org.mockito.quality.Strictness;
  import org.springframework.context.ConfigurableApplicationContext;
  import org.springframework.mock.env.MockEnvironment;
  
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  import static org.mockito.ArgumentMatchers.any;
  import static org.mockito.ArgumentMatchers.eq;
  import static org.mockito.Mockito.doAnswer;
  import static org.mockito.Mockito.doThrow;
  import static org.mockito.Mockito.never;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  @ExtendWith(MockitoExtension.class)
  // todo remove this
  @MockitoSettings(strictness = Strictness.LENIENT)
  class DistroClientTransportAgentTest {
      
      @Mock
      ClusterRpcClientProxy clusterRpcClientProxy;
      
      @Mock
      ServerMemberManager memberManager;
      
      @Mock
      ConfigurableApplicationContext context;
      
      @Mock
      DistroCallback distroCallback;
      
      @InjectMocks
      DistroClientTransportAgent transportAgent;
      
      Member member;
      
      Response response;
      
      @BeforeEach
      void setUp() throws Exception {
          ApplicationUtils.injectContext(context);
          EnvUtil.setEnvironment(new MockEnvironment());
          member = new Member();
          member.setIp("1.1.1.1");
          member.setPort(8848);
          response = new DistroDataResponse();
          when(memberManager.find(member.getAddress())).thenReturn(member);
          when(memberManager.getSelf()).thenReturn(member);
          when(clusterRpcClientProxy.sendRequest(eq(member), any())).thenReturn(response);
          doAnswer(invocationOnMock -> {
              RequestCallBack<Response> callback = invocationOnMock.getArgument(2);
              callback.onResponse(response);
              return null;
          }).when(clusterRpcClientProxy).asyncRequest(eq(member), any(), any());
          // When run all project, the TpsNamingMonitor will be init by other unit test, will throw UnnecessaryStubbingException.
      }
      
      @AfterEach
      void tearDown() throws Exception {
      }
      
      @Test
      void testSupportCallbackTransport() {
          assertTrue(transportAgent.supportCallbackTransport());
      }
      
      @Test
      void testSyncDataForMemberNonExist() throws NacosException {
          assertTrue(transportAgent.syncData(new DistroData(), member.getAddress()));
          verify(memberManager, never()).find(member.getAddress());
          verify(clusterRpcClientProxy, never()).sendRequest(any(Member.class), any());
      }
      
      @Test
      void testSyncDataForMemberUnhealthy() throws NacosException {
          when(memberManager.hasMember(member.getAddress())).thenReturn(true);
          when(memberManager.find(member.getAddress())).thenReturn(member);
          assertFalse(transportAgent.syncData(new DistroData(), member.getAddress()));
          verify(clusterRpcClientProxy, never()).sendRequest(any(Member.class), any());
      }
      
      @Test
      void testSyncDataForMemberDisconnect() throws NacosException {
          when(memberManager.hasMember(member.getAddress())).thenReturn(true);
          when(memberManager.find(member.getAddress())).thenReturn(member);
          member.setState(NodeState.UP);
          assertFalse(transportAgent.syncData(new DistroData(), member.getAddress()));
          verify(clusterRpcClientProxy, never()).sendRequest(any(Member.class), any());
      }
      
      @Test
      void testSyncDataFailure() throws NacosException {
          when(memberManager.hasMember(member.getAddress())).thenReturn(true);
          when(memberManager.find(member.getAddress())).thenReturn(member);
          member.setState(NodeState.UP);
          response.setErrorInfo(ResponseCode.FAIL.getCode(), "TEST");
          when(clusterRpcClientProxy.isRunning(member)).thenReturn(true);
          assertFalse(transportAgent.syncData(new DistroData(), member.getAddress()));
      }
      
      @Test
      void testSyncDataException() throws NacosException {
          when(memberManager.hasMember(member.getAddress())).thenReturn(true);
          when(memberManager.find(member.getAddress())).thenReturn(member);
          member.setState(NodeState.UP);
          when(clusterRpcClientProxy.sendRequest(eq(member), any())).thenThrow(new NacosException());
          when(clusterRpcClientProxy.isRunning(member)).thenReturn(true);
          assertFalse(transportAgent.syncData(new DistroData(), member.getAddress()));
      }
      
      @Test
      void testSyncDataSuccess() throws NacosException {
          when(memberManager.hasMember(member.getAddress())).thenReturn(true);
          when(memberManager.find(member.getAddress())).thenReturn(member);
          member.setState(NodeState.UP);
          when(clusterRpcClientProxy.isRunning(member)).thenReturn(true);
          assertTrue(transportAgent.syncData(new DistroData(), member.getAddress()));
      }
      
      @Test
      void testSyncDataWithCallbackForMemberNonExist() throws NacosException {
          transportAgent.syncData(new DistroData(), member.getAddress(), distroCallback);
          verify(distroCallback).onSuccess();
          verify(memberManager, never()).find(member.getAddress());
          verify(clusterRpcClientProxy, never()).asyncRequest(any(Member.class), any(), any());
      }
      
      @Test
      void testSyncDataWithCallbackForMemberUnhealthy() throws NacosException {
          when(memberManager.hasMember(member.getAddress())).thenReturn(true);
          when(memberManager.find(member.getAddress())).thenReturn(member);
          transportAgent.syncData(new DistroData(), member.getAddress(), distroCallback);
          verify(distroCallback).onFailed(null);
          verify(clusterRpcClientProxy, never()).asyncRequest(any(Member.class), any(), any());
      }
      
      @Test
      void testSyncDataWithCallbackForMemberDisconnect() throws NacosException {
          when(memberManager.hasMember(member.getAddress())).thenReturn(true);
          when(memberManager.find(member.getAddress())).thenReturn(member);
          member.setState(NodeState.UP);
          transportAgent.syncData(new DistroData(), member.getAddress(), distroCallback);
          verify(distroCallback).onFailed(null);
          verify(clusterRpcClientProxy, never()).asyncRequest(any(Member.class), any(), any());
      }
      
      @Test
      void testSyncDataWithCallbackFailure() throws NacosException {
          when(memberManager.hasMember(member.getAddress())).thenReturn(true);
          when(memberManager.find(member.getAddress())).thenReturn(member);
          member.setState(NodeState.UP);
          response.setErrorInfo(ResponseCode.FAIL.getCode(), "TEST");
          when(clusterRpcClientProxy.isRunning(member)).thenReturn(true);
          transportAgent.syncData(new DistroData(), member.getAddress(), distroCallback);
          verify(distroCallback).onFailed(null);
      }
      
      @Test
      void testSyncDataWithCallbackException() throws NacosException {
          when(memberManager.hasMember(member.getAddress())).thenReturn(true);
          when(memberManager.find(member.getAddress())).thenReturn(member);
          member.setState(NodeState.UP);
          when(clusterRpcClientProxy.isRunning(member)).thenReturn(true);
          doThrow(new NacosException()).when(clusterRpcClientProxy).asyncRequest(eq(member), any(), any());
          transportAgent.syncData(new DistroData(), member.getAddress(), distroCallback);
          verify(distroCallback).onFailed(any(NacosException.class));
      }
      
      @Test
      void testSyncDataWithCallbackException2() throws NacosException {
          when(memberManager.hasMember(member.getAddress())).thenReturn(true);
          when(memberManager.find(member.getAddress())).thenReturn(member);
          member.setState(NodeState.UP);
          when(clusterRpcClientProxy.isRunning(member)).thenReturn(true);
          doAnswer(invocationOnMock -> {
              RequestCallBack<Response> callback = invocationOnMock.getArgument(2);
              callback.onException(new NacosException());
              return null;
          }).when(clusterRpcClientProxy).asyncRequest(eq(member), any(), any());
          transportAgent.syncData(new DistroData(), member.getAddress(), distroCallback);
          verify(distroCallback).onFailed(any(NacosException.class));
      }
      
      @Test
      void testSyncDataWithCallbackSuccess() throws NacosException {
          when(memberManager.hasMember(member.getAddress())).thenReturn(true);
          when(memberManager.find(member.getAddress())).thenReturn(member);
          member.setState(NodeState.UP);
          when(clusterRpcClientProxy.isRunning(member)).thenReturn(true);
          transportAgent.syncData(new DistroData(), member.getAddress(), distroCallback);
          verify(distroCallback).onSuccess();
      }
      
      @Test
      void testSyncVerifyDataForMemberNonExist() throws NacosException {
          DistroData verifyData = new DistroData();
          verifyData.setDistroKey(new DistroKey());
          assertTrue(transportAgent.syncVerifyData(verifyData, member.getAddress()));
          verify(memberManager, never()).find(member.getAddress());
          verify(clusterRpcClientProxy, never()).sendRequest(any(Member.class), any());
      }
      
      @Test
      void testSyncVerifyDataForMemberUnhealthy() throws NacosException {
          DistroData verifyData = new DistroData();
          verifyData.setDistroKey(new DistroKey());
          when(memberManager.hasMember(member.getAddress())).thenReturn(true);
          when(memberManager.find(member.getAddress())).thenReturn(member);
          assertFalse(transportAgent.syncVerifyData(verifyData, member.getAddress()));
          verify(clusterRpcClientProxy, never()).sendRequest(any(Member.class), any());
      }
      
      @Test
      void testSyncVerifyDataForMemberDisconnect() throws NacosException {
          DistroData verifyData = new DistroData();
          verifyData.setDistroKey(new DistroKey());
          when(memberManager.hasMember(member.getAddress())).thenReturn(true);
          when(memberManager.find(member.getAddress())).thenReturn(member);
          member.setState(NodeState.UP);
          assertFalse(transportAgent.syncVerifyData(verifyData, member.getAddress()));
          verify(clusterRpcClientProxy, never()).sendRequest(any(Member.class), any());
      }
      
      @Test
      void testSyncVerifyDataFailure() throws NacosException {
          DistroData verifyData = new DistroData();
          verifyData.setDistroKey(new DistroKey());
          when(memberManager.hasMember(member.getAddress())).thenReturn(true);
          when(memberManager.find(member.getAddress())).thenReturn(member);
          member.setState(NodeState.UP);
          response.setErrorInfo(ResponseCode.FAIL.getCode(), "TEST");
          when(clusterRpcClientProxy.isRunning(member)).thenReturn(true);
          assertFalse(transportAgent.syncVerifyData(verifyData, member.getAddress()));
      }
      
      @Test
      void testSyncVerifyDataException() throws NacosException {
          DistroData verifyData = new DistroData();
          verifyData.setDistroKey(new DistroKey());
          when(memberManager.hasMember(member.getAddress())).thenReturn(true);
          when(memberManager.find(member.getAddress())).thenReturn(member);
          member.setState(NodeState.UP);
          when(clusterRpcClientProxy.sendRequest(eq(member), any())).thenThrow(new NacosException());
          when(clusterRpcClientProxy.isRunning(member)).thenReturn(true);
          assertFalse(transportAgent.syncVerifyData(verifyData, member.getAddress()));
      }
      
      @Test
      void testSyncVerifyDataSuccess() throws NacosException {
          DistroData verifyData = new DistroData();
          verifyData.setDistroKey(new DistroKey());
          when(memberManager.hasMember(member.getAddress())).thenReturn(true);
          when(memberManager.find(member.getAddress())).thenReturn(member);
          member.setState(NodeState.UP);
          when(clusterRpcClientProxy.isRunning(member)).thenReturn(true);
          assertTrue(transportAgent.syncVerifyData(verifyData, member.getAddress()));
      }
      
      @Test
      void testSyncVerifyDataWithCallbackForMemberNonExist() throws NacosException {
          DistroData verifyData = new DistroData();
          verifyData.setDistroKey(new DistroKey());
          transportAgent.syncVerifyData(verifyData, member.getAddress(), distroCallback);
          verify(distroCallback).onSuccess();
          verify(memberManager, never()).find(member.getAddress());
          verify(clusterRpcClientProxy, never()).asyncRequest(any(Member.class), any(), any());
      }
      
      @Test
      void testSyncVerifyDataWithCallbackForMemberUnhealthy() throws NacosException {
          DistroData verifyData = new DistroData();
          verifyData.setDistroKey(new DistroKey());
          when(memberManager.hasMember(member.getAddress())).thenReturn(true);
          when(memberManager.find(member.getAddress())).thenReturn(member);
          transportAgent.syncVerifyData(verifyData, member.getAddress(), distroCallback);
          verify(distroCallback).onFailed(null);
          verify(clusterRpcClientProxy, never()).asyncRequest(any(Member.class), any(), any());
      }
      
      @Test
      void testSyncVerifyDataWithCallbackForMemberDisconnect() throws NacosException {
          DistroData verifyData = new DistroData();
          verifyData.setDistroKey(new DistroKey());
          when(memberManager.hasMember(member.getAddress())).thenReturn(true);
          when(memberManager.find(member.getAddress())).thenReturn(member);
          member.setState(NodeState.UP);
          transportAgent.syncVerifyData(verifyData, member.getAddress(), distroCallback);
          verify(distroCallback).onFailed(null);
          verify(clusterRpcClientProxy, never()).asyncRequest(any(Member.class), any(), any());
      }
      
      @Test
      void testSyncVerifyDataWithCallbackFailure() throws NacosException {
          DistroData verifyData = new DistroData();
          verifyData.setDistroKey(new DistroKey());
          when(memberManager.hasMember(member.getAddress())).thenReturn(true);
          when(memberManager.find(member.getAddress())).thenReturn(member);
          member.setState(NodeState.UP);
          response.setErrorInfo(ResponseCode.FAIL.getCode(), "TEST");
          when(clusterRpcClientProxy.isRunning(member)).thenReturn(true);
          transportAgent.syncVerifyData(verifyData, member.getAddress(), distroCallback);
          verify(distroCallback).onFailed(null);
      }
      
      @Test
      void testSyncVerifyDataWithCallbackException() throws NacosException {
          DistroData verifyData = new DistroData();
          verifyData.setDistroKey(new DistroKey());
          when(memberManager.hasMember(member.getAddress())).thenReturn(true);
          when(memberManager.find(member.getAddress())).thenReturn(member);
          member.setState(NodeState.UP);
          when(clusterRpcClientProxy.isRunning(member)).thenReturn(true);
          doThrow(new NacosException()).when(clusterRpcClientProxy).asyncRequest(eq(member), any(), any());
          transportAgent.syncVerifyData(verifyData, member.getAddress(), distroCallback);
          verify(distroCallback).onFailed(any(NacosException.class));
      }
      
      @Test
      void testSyncVerifyDataWithCallbackException2() throws NacosException {
          DistroData verifyData = new DistroData();
          verifyData.setDistroKey(new DistroKey());
          when(memberManager.hasMember(member.getAddress())).thenReturn(true);
          when(memberManager.find(member.getAddress())).thenReturn(member);
          member.setState(NodeState.UP);
          when(clusterRpcClientProxy.isRunning(member)).thenReturn(true);
          doAnswer(invocationOnMock -> {
              RequestCallBack<Response> callback = invocationOnMock.getArgument(2);
              callback.onException(new NacosException());
              return null;
          }).when(clusterRpcClientProxy).asyncRequest(eq(member), any(), any());
          transportAgent.syncVerifyData(verifyData, member.getAddress(), distroCallback);
          verify(distroCallback).onFailed(any(NacosException.class));
      }
      
      @Test
      void testSyncVerifyDataWithCallbackSuccess() throws NacosException {
          DistroData verifyData = new DistroData();
          verifyData.setDistroKey(new DistroKey());
          when(memberManager.hasMember(member.getAddress())).thenReturn(true);
          when(memberManager.find(member.getAddress())).thenReturn(member);
          member.setState(NodeState.UP);
          when(clusterRpcClientProxy.isRunning(member)).thenReturn(true);
          transportAgent.syncVerifyData(verifyData, member.getAddress(), distroCallback);
          verify(distroCallback).onSuccess();
      }
      
      @Test
      void testGetDataForMemberNonExist() {
          assertThrows(DistroException.class, () -> {
              transportAgent.getData(new DistroKey(), member.getAddress());
          });
      }
      
      @Test
      void testGetDataForMemberUnhealthy() {
          assertThrows(DistroException.class, () -> {
              when(memberManager.find(member.getAddress())).thenReturn(member);
              transportAgent.getData(new DistroKey(), member.getAddress());
          });
      }
      
      @Test
      void testGetDataForMemberDisconnect() {
          assertThrows(DistroException.class, () -> {
              when(memberManager.find(member.getAddress())).thenReturn(member);
              member.setState(NodeState.UP);
              transportAgent.getData(new DistroKey(), member.getAddress());
          });
      }
      
      @Test
      void testGetDataException() throws NacosException {
          assertThrows(DistroException.class, () -> {
              when(memberManager.find(member.getAddress())).thenReturn(member);
              member.setState(NodeState.UP);
              when(clusterRpcClientProxy.isRunning(member)).thenReturn(true);
              when(clusterRpcClientProxy.sendRequest(eq(member), any())).thenThrow(new NacosException());
              transportAgent.getData(new DistroKey(), member.getAddress());
          });
      }
      
      @Test
      void testGetDataFailure() {
          assertThrows(DistroException.class, () -> {
              when(memberManager.find(member.getAddress())).thenReturn(member);
              member.setState(NodeState.UP);
              when(clusterRpcClientProxy.isRunning(member)).thenReturn(true);
              response.setErrorInfo(ResponseCode.FAIL.getCode(), "TEST");
              transportAgent.getData(new DistroKey(), member.getAddress());
          });
      }
      
      @Test
      void testGetDataSuccess() {
          when(memberManager.find(member.getAddress())).thenReturn(member);
          member.setState(NodeState.UP);
          when(clusterRpcClientProxy.isRunning(member)).thenReturn(true);
          transportAgent.getData(new DistroKey(), member.getAddress());
      }
      
      @Test
      void testGetDatumSnapshotForMemberNonExist() {
          assertThrows(DistroException.class, () -> {
              transportAgent.getDatumSnapshot(member.getAddress());
          });
      }
      
      @Test
      void testGetDatumSnapshotForMemberUnhealthy() {
          assertThrows(DistroException.class, () -> {
              when(memberManager.find(member.getAddress())).thenReturn(member);
              transportAgent.getDatumSnapshot(member.getAddress());
          });
      }
      
      @Test
      void testGetDatumSnapshotForMemberDisconnect() {
          assertThrows(DistroException.class, () -> {
              when(memberManager.find(member.getAddress())).thenReturn(member);
              member.setState(NodeState.UP);
              transportAgent.getDatumSnapshot(member.getAddress());
          });
      }
      
      @Test
      void testGetDatumSnapshotException() throws NacosException {
          assertThrows(DistroException.class, () -> {
              when(memberManager.find(member.getAddress())).thenReturn(member);
              member.setState(NodeState.UP);
              when(clusterRpcClientProxy.isRunning(member)).thenReturn(true);
              when(clusterRpcClientProxy.sendRequest(eq(member), any(), any(Long.class))).thenThrow(new NacosException());
              transportAgent.getDatumSnapshot(member.getAddress());
          });
      }
      
      @Test
      void testGetDatumSnapshotFailure() throws NacosException {
          assertThrows(DistroException.class, () -> {
              when(memberManager.find(member.getAddress())).thenReturn(member);
              member.setState(NodeState.UP);
              when(clusterRpcClientProxy.isRunning(member)).thenReturn(true);
              when(clusterRpcClientProxy.sendRequest(eq(member), any(), any(Long.class))).thenReturn(response);
              response.setErrorInfo(ResponseCode.FAIL.getCode(), "TEST");
              transportAgent.getDatumSnapshot(member.getAddress());
          });
      }
      
      @Test
      void testGetDatumSnapshotSuccess() throws NacosException {
          when(memberManager.find(member.getAddress())).thenReturn(member);
          member.setState(NodeState.UP);
          when(clusterRpcClientProxy.isRunning(member)).thenReturn(true);
          when(clusterRpcClientProxy.sendRequest(eq(member), any(), any(Long.class))).thenReturn(response);
          transportAgent.getDatumSnapshot(member.getAddress());
      }
  }
  