content: /*
   * Copyright 1999-2018 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.druid.bvt.sql.mysql;
  
  import com.alibaba.druid.sql.ast.SQLStatement;
  import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
  import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlOutputVisitor;
  import com.alibaba.druid.sql.parser.SQLStatementParser;
  import junit.framework.TestCase;
  
  import java.util.List;
  
  public class SQLSelectTest extends TestCase {
      public void test_select() throws Exception {
          String sql = "SELECT ALL FID FROM T1;SELECT DISTINCT FID FROM T1;SELECT DISTINCTROW FID FROM T1;";
  
          SQLStatementParser parser = new MySqlStatementParser(sql);
          List<SQLStatement> stmtList = parser.parseStatementList();
  
          output(stmtList);
      }
  
      public void test_select_1() throws Exception {
          String sql = "SELECT HIGH_PRIORITY STRAIGHT_JOIN SQL_SMALL_RESULT SQL_BIG_RESULT SQL_BUFFER_RESULT FID FROM T1;";
  
          SQLStatementParser parser = new MySqlStatementParser(sql);
          List<SQLStatement> stmtList = parser.parseStatementList();
  
          output(stmtList);
      }
  
      public void test_select_2() throws Exception {
          String sql = "SELECT SQL_CACHE FID FROM T1;";
  
          SQLStatementParser parser = new MySqlStatementParser(sql);
          List<SQLStatement> stmtList = parser.parseStatementList();
  
          output(stmtList);
      }
  
      public void test_select_3() throws Exception {
          String sql = "SELECT SQL_NO_CACHE FID FROM T1;";
  
          SQLStatementParser parser = new MySqlStatementParser(sql);
          List<SQLStatement> stmtList = parser.parseStatementList();
  
          output(stmtList);
      }
  
      public void test_select_4() throws Exception {
          String sql = "SELECT SQL_CALC_FOUND_ROWS FID FROM T1;";
  
          SQLStatementParser parser = new MySqlStatementParser(sql);
          List<SQLStatement> stmtList = parser.parseStatementList();
  
          output(stmtList);
      }
  
      public void test_select_5() throws Exception {
          String sql = "SELECT 1 + 1;";
  
          SQLStatementParser parser = new MySqlStatementParser(sql);
          List<SQLStatement> stmtList = parser.parseStatementList();
  
          output(stmtList);
      }
  
      public void test_select_6() throws Exception {
          String sql = "SELECT CONCAT(last_name,', ',first_name) AS full_name FROM mytable ORDER BY full_name;";
  
          SQLStatementParser parser = new MySqlStatementParser(sql);
          List<SQLStatement> stmtList = parser.parseStatementList();
  
          output(stmtList);
      }
  
      public void test_select_7() throws Exception {
          String sql = "select * from ((select * from test1) UNION (select * from test2) UNION (select * from test3)) where t1='温高铁';";
  
          SQLStatementParser parser = new MySqlStatementParser(sql);
          List<SQLStatement> stmtList = parser.parseStatementList();
  
          output(stmtList);
      }
  
      private String output(List<SQLStatement> stmtList) {
          StringBuilder out = new StringBuilder();
          for (SQLStatement stmt : stmtList) {
              stmt.accept(new MySqlOutputVisitor(out));
  //            System.out.println(";");
  //            System.out.println();
          }
          return out.toString();
      }
  }
  