text: /******************************************************************************
   * Copyright 2018 The Apollo Authors. All Rights Reserved.
   *
   * 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.
   *****************************************************************************/
  
  #include "cyber/service_discovery/specific_manager/node_manager.h"
  
  #include <gtest/gtest.h>
  #include <memory>
  #include <vector>
  
  #include "cyber/common/global_data.h"
  
  namespace apollo {
  namespace cyber {
  namespace service_discovery {
  
  class NodeManagerTest : public ::testing::Test {
   protected:
    NodeManagerTest() { node_manager_ = std::make_shared<NodeManager>(); }
    virtual ~NodeManagerTest() { node_manager_->Shutdown(); }
  
    virtual void SetUp() {}
  
    virtual void TearDown() {}
  
    std::shared_ptr<NodeManager> node_manager_;
  };
  
  TEST_F(NodeManagerTest, node_change) {
    EXPECT_FALSE(node_manager_->HasNode("node"));
  
    // node join
    RoleAttributes role_attr;
    EXPECT_FALSE(node_manager_->Join(role_attr, RoleType::ROLE_WRITER));
    EXPECT_FALSE(node_manager_->Join(role_attr, RoleType::ROLE_NODE));
  
    role_attr.set_host_name(common::GlobalData::Instance()->HostName());
    role_attr.set_process_id(common::GlobalData::Instance()->ProcessId());
    role_attr.set_node_name("node");
    uint64_t node_id = common::GlobalData::RegisterNode("node");
    role_attr.set_node_id(node_id);
  
    EXPECT_FALSE(node_manager_->Join(role_attr, RoleType::ROLE_WRITER));
    EXPECT_FALSE(node_manager_->Join(role_attr, RoleType::ROLE_NODE));
  
    EXPECT_TRUE(node_manager_->HasNode("node"));
  
    // node leave
    EXPECT_FALSE(node_manager_->Leave(role_attr, RoleType::ROLE_WRITER));
    EXPECT_FALSE(node_manager_->Leave(role_attr, RoleType::ROLE_NODE));
  
    EXPECT_FALSE(node_manager_->HasNode("node"));
  }
  
  TEST_F(NodeManagerTest, topo_module_leave) {
    RoleAttributes role_attr;
    role_attr.set_host_name(common::GlobalData::Instance()->HostName());
    role_attr.set_process_id(common::GlobalData::Instance()->ProcessId());
    role_attr.set_node_name("node");
    uint64_t node_id = common::GlobalData::RegisterNode("node");
    role_attr.set_node_id(node_id);
  
    EXPECT_FALSE(node_manager_->Join(role_attr, RoleType::ROLE_NODE));
    EXPECT_TRUE(node_manager_->HasNode("node"));
  }
  
  TEST_F(NodeManagerTest, add_and_remove_change_listener) {
    bool recv_flag = false;
    auto conn = node_manager_->AddChangeListener(
        [&recv_flag](const ChangeMsg& msg) { recv_flag = true; });
  
    RoleAttributes role_attr;
    role_attr.set_host_name("caros");
    role_attr.set_process_id(1024);
    role_attr.set_node_name("node");
    uint64_t node_id = common::GlobalData::RegisterNode("node");
    role_attr.set_node_id(node_id);
  
    EXPECT_FALSE(node_manager_->Join(role_attr, RoleType::ROLE_NODE));
    EXPECT_TRUE(recv_flag);
  
    node_manager_->RemoveChangeListener(conn);
  
    recv_flag = false;
    EXPECT_FALSE(node_manager_->Leave(role_attr, RoleType::ROLE_NODE));
    EXPECT_FALSE(recv_flag);
  }
  
  TEST_F(NodeManagerTest, has_node) {
    RoleAttributes role_attr;
    role_attr.set_host_name("caros");
    role_attr.set_process_id(1024);
    role_attr.set_node_name("node");
    uint64_t node_id = common::GlobalData::RegisterNode("node");
    role_attr.set_node_id(node_id);
  
    EXPECT_FALSE(node_manager_->Join(role_attr, RoleType::ROLE_NODE));
  
    EXPECT_TRUE(node_manager_->HasNode("node"));
    EXPECT_FALSE(node_manager_->HasNode("node11"));
  }
  
  TEST_F(NodeManagerTest, get_nodes) {
    RoleAttributes role_attr;
    role_attr.set_host_name("caros");
    role_attr.set_process_id(1024);
    role_attr.set_node_name("node_1");
    uint64_t node_id = common::GlobalData::RegisterNode("node_1");
    role_attr.set_node_id(node_id);
  
    EXPECT_FALSE(node_manager_->Join(role_attr, RoleType::ROLE_NODE));
  
    std::vector<RoleAttributes> attr_nodes;
    node_manager_->GetNodes(&attr_nodes);
    EXPECT_EQ(attr_nodes.size(), 1);
  }
  
  }  // namespace service_discovery
  }  // namespace cyber
  }  // namespace apollo
  