text: // Licensed to the Apache Software Foundation (ASF) under one
  // or more contributor license agreements.  See the NOTICE file
  // distributed with this work for additional information
  // regarding copyright ownership.  The ASF licenses this file
  // to you 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 <gtest/gtest.h>
  #include "scheduler/resource/Node.h"
  
  namespace {
  
  namespace ms = milvus::scheduler;
  
  }  // namespace
  
  class NodeTest : public ::testing::Test {
   protected:
      void
      SetUp() override {
          node1_ = std::make_shared<ms::Node>();
          node2_ = std::make_shared<ms::Node>();
          node3_ = std::make_shared<ms::Node>();
          isolated_node1_ = std::make_shared<ms::Node>();
          isolated_node2_ = std::make_shared<ms::Node>();
  
          auto pcie = ms::Connection("PCIe", 11.0);
  
          node1_->AddNeighbour(node2_, pcie);
          node1_->AddNeighbour(node3_, pcie);
          node2_->AddNeighbour(node1_, pcie);
      }
  
      ms::NodePtr node1_;
      ms::NodePtr node2_;
      ms::NodePtr node3_;
      ms::NodePtr isolated_node1_;
      ms::NodePtr isolated_node2_;
  };
  
  TEST_F(NodeTest, ADD_NEIGHBOUR) {
      ASSERT_EQ(isolated_node1_->GetNeighbours().size(), 0);
      ASSERT_EQ(isolated_node2_->GetNeighbours().size(), 0);
      auto pcie = ms::Connection("PCIe", 11.0);
      isolated_node1_->AddNeighbour(isolated_node2_, pcie);
      ASSERT_EQ(isolated_node1_->GetNeighbours().size(), 1);
      ASSERT_EQ(isolated_node2_->GetNeighbours().size(), 0);
  }
  
  TEST_F(NodeTest, REPEAT_ADD_NEIGHBOUR) {
      ASSERT_EQ(isolated_node1_->GetNeighbours().size(), 0);
      ASSERT_EQ(isolated_node2_->GetNeighbours().size(), 0);
      auto pcie = ms::Connection("PCIe", 11.0);
      isolated_node1_->AddNeighbour(isolated_node2_, pcie);
      isolated_node1_->AddNeighbour(isolated_node2_, pcie);
      ASSERT_EQ(isolated_node1_->GetNeighbours().size(), 1);
      ASSERT_EQ(isolated_node2_->GetNeighbours().size(), 0);
  }
  
  TEST_F(NodeTest, GET_NEIGHBOURS) {
      {
          bool n2 = false, n3 = false;
          auto node1_neighbours = node1_->GetNeighbours();
          ASSERT_EQ(node1_neighbours.size(), 2);
          for (auto& n : node1_neighbours) {
              if (n.neighbour_node == node2_)
                  n2 = true;
              if (n.neighbour_node == node3_)
                  n3 = true;
          }
          ASSERT_TRUE(n2);
          ASSERT_TRUE(n3);
      }
  
      {
          auto node2_neighbours = node2_->GetNeighbours();
          ASSERT_EQ(node2_neighbours.size(), 1);
          ASSERT_EQ(node2_neighbours[0].neighbour_node, node1_);
      }
  
      {
          auto node3_neighbours = node3_->GetNeighbours();
          ASSERT_EQ(node3_neighbours.size(), 0);
      }
  }
  
  TEST_F(NodeTest, DUMP) {
      std::cout << node1_->Dump();
      ASSERT_FALSE(node1_->Dump().empty());
  
      std::cout << node2_->Dump();
      ASSERT_FALSE(node2_->Dump().empty());
  }
  