content: package com.alibaba.druid.bvt.sql;
  
  import com.alibaba.druid.sql.PagerUtils;
  import com.alibaba.druid.util.JdbcConstants;
  import junit.framework.TestCase;
  
  public class PagerUtilsTest_hasUnorderedLimit extends TestCase {
      public void test_false() throws Exception {
          String sql = " select * from test t order by id limit 3";
          assertFalse(PagerUtils.hasUnorderedLimit(sql, JdbcConstants.MYSQL));
      }
  
      public void test_false_1() throws Exception {
          String sql = " select * from test t";
          assertFalse(PagerUtils.hasUnorderedLimit(sql, JdbcConstants.MYSQL));
      }
  
      public void test_true() throws Exception {
          String sql = " select * from test t limit 3";
          assertTrue(PagerUtils.hasUnorderedLimit(sql, JdbcConstants.MYSQL));
      }
  
      public void test_true_subquery() throws Exception {
          String sql = "select * from(select * from test t limit 3) x";
          assertTrue(PagerUtils.hasUnorderedLimit(sql, JdbcConstants.MYSQL));
      }
  
      public void test_true_subquery_2() throws Exception {
          String sql = "select * from (select * from test t order by id desc) z limit 100";
          assertFalse(PagerUtils.hasUnorderedLimit(sql, JdbcConstants.MYSQL));
      }
  }
  