content: /*
   * Copyright 2021-2022 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.aliyun.fastmodel.compare.impl;
  
  import java.util.List;
  
  import com.aliyun.fastmodel.compare.CompareNodeExecute;
  import com.aliyun.fastmodel.compare.CompareStrategy;
  import com.aliyun.fastmodel.core.tree.BaseStatement;
  import com.aliyun.fastmodel.core.tree.QualifiedName;
  import com.aliyun.fastmodel.core.tree.datatype.BaseDataType;
  import com.aliyun.fastmodel.core.tree.datatype.DataTypeEnums;
  import com.aliyun.fastmodel.core.tree.expr.Identifier;
  import com.aliyun.fastmodel.core.tree.statement.table.ColumnDefinition;
  import com.aliyun.fastmodel.core.tree.statement.table.CreateDwsTable;
  import com.aliyun.fastmodel.core.tree.statement.table.RenameTable;
  import com.aliyun.fastmodel.core.tree.util.DataTypeUtil;
  import com.google.common.collect.ImmutableList;
  import org.junit.Test;
  
  import static org.junit.Assert.assertEquals;
  
  /**
   * CreateDwsTable
   *
   * @author panguanjing
   * @date 2021/3/11
   */
  public class CreateDwsTableCompareNodeTest {
  
      @Test
      public void testRename() {
          BaseDataType genericDataType = DataTypeUtil.simpleType(DataTypeEnums.BIGINT);
          ColumnDefinition a1 = ColumnDefinition.builder().colName(new Identifier("a")).dataType(genericDataType).build();
          ImmutableList<ColumnDefinition> a = ImmutableList
              .of(a1);
          CreateDwsTable createDwsTable = CreateDwsTable.builder().tableName(QualifiedName.of("b")).ifNotExist(true)
              .columns(a).build();
  
          CreateDwsTable createDwsTable1 = CreateDwsTable.builder().tableName(QualifiedName.of("c")).columns(a)
              .ifNotExist(true).build();
          List<BaseStatement> compare = CompareNodeExecute.getInstance().compare(createDwsTable, createDwsTable1,
              CompareStrategy.INCREMENTAL);
          assertEquals(compare.size(), 1);
          RenameTable renameTable = (RenameTable)compare.get(0);
          assertEquals(renameTable.getNewIdentifier(), "c");
      }
  }
  