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.filter.wall;
  
  import com.alibaba.druid.wall.WallCheckResult;
  import com.alibaba.druid.wall.WallConfig;
  import com.alibaba.druid.wall.WallProvider;
  import com.alibaba.druid.wall.spi.DB2WallProvider;
  import com.alibaba.druid.wall.spi.MySqlWallProvider;
  import com.alibaba.druid.wall.spi.OracleWallProvider;
  import com.alibaba.druid.wall.spi.PGWallProvider;
  import com.alibaba.druid.wall.spi.SQLServerWallProvider;
  import junit.framework.TestCase;
  
  public class WallSelectLimitTest extends TestCase {
      private String sql = "select * from t";
  
      private WallConfig config = new WallConfig();
  
      protected void setUp() throws Exception {
          config.setSelectLimit(1000);
      }
  
      public void testMySql() throws Exception {
          WallProvider provider = new MySqlWallProvider(config);
          WallCheckResult checkResult = provider.check(sql);
          String resultSql = checkResult.getSql();
          System.out.println(resultSql);
          assertEquals("SELECT *\n" +
                  "FROM t\n" +
                  "LIMIT 1000", resultSql);
      }
  
      public void testDB2() throws Exception {
          WallProvider provider = new DB2WallProvider(config);
          WallCheckResult checkResult = provider.check(sql);
          String resultSql = checkResult.getSql();
          System.out.println(resultSql);
          assertEquals("SELECT *\n" +
                  "FROM t\n" +
                  "FETCH FIRST 1000 ROWS ONLY", resultSql);
      }
  
      public void testSQLServer() throws Exception {
          WallProvider provider = new SQLServerWallProvider(config);
          WallCheckResult checkResult = provider.check(sql);
          String resultSql = checkResult.getSql();
          System.out.println(resultSql);
          assertEquals("SELECT TOP 1000 *\n" +
                  "FROM t", resultSql);
      }
  
      public void testOracle() throws Exception {
          WallProvider provider = new OracleWallProvider(config);
          WallCheckResult checkResult = provider.check(sql);
          String resultSql = checkResult.getSql();
          System.out.println(resultSql);
          assertEquals("SELECT *\n" +
                  "FROM t\n" +
                  "WHERE ROWNUM <= 1000", resultSql);
      }
  
      public void testPG() throws Exception {
          WallProvider provider = new PGWallProvider(config);
          WallCheckResult checkResult = provider.check(sql);
          String resultSql = checkResult.getSql();
          System.out.println(resultSql);
          assertEquals("SELECT *\n" +
                  "FROM t\n" +
                  "LIMIT 1000", resultSql);
      }
  }
  