content: /*
   * Copyright 1999-2017 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.show;
  
  import com.alibaba.druid.DbType;
  import com.alibaba.druid.sql.MysqlTest;
  import com.alibaba.druid.sql.SQLUtils;
  import com.alibaba.druid.sql.ast.SQLStatement;
  import com.alibaba.druid.sql.ast.expr.SQLBigIntExpr;
  import com.alibaba.druid.sql.ast.expr.SQLBinaryOpExpr;
  import com.alibaba.druid.sql.ast.expr.SQLBinaryOperator;
  import com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr;
  import com.alibaba.druid.sql.ast.statement.SQLShowQueryTaskStatement;
  import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
  import com.alibaba.druid.sql.parser.SQLParserFeature;
  import com.alibaba.druid.sql.visitor.SchemaStatVisitor;
  
  import java.util.List;
  
  public class MySqlShowTest_15_queryTask extends MysqlTest {
      public void test_0() throws Exception {
          String sql = "SHOW QUERY_TASK";
  
          SQLStatement stmt = SQLUtils.parseStatements(sql, DbType.mysql).get(0);
  
          String result = SQLUtils.toMySqlString(stmt);
          assertEquals("SHOW QUERY_TASK", result);
  
          SchemaStatVisitor visitor = SQLUtils.createSchemaStatVisitor(DbType.mysql);
          stmt.accept(visitor);
  
          assertEquals(0, visitor.getTables().size());
          assertEquals(0, visitor.getColumns().size());
          assertEquals(0, visitor.getConditions().size());
      }
  
      public void test_1() throws Exception {
          String sql = "SHOW QUERY_TASK where name > 1 order by name desc limit 1";
          MySqlStatementParser parser = new MySqlStatementParser(sql, SQLParserFeature.TDDLHint);
          List<SQLStatement> statementList = parser.parseStatementList();
          SQLShowQueryTaskStatement stmt = (SQLShowQueryTaskStatement) statementList.get(0);
  
          String result = SQLUtils.toMySqlString(stmt);
          assertEquals("SHOW QUERY_TASK\n"
                  + "WHERE name > 1\n"
                  + "ORDER BY name DESC\n"
                  + "LIMIT 1", result);
  
          SchemaStatVisitor visitor = SQLUtils.createSchemaStatVisitor(DbType.mysql);
          stmt.accept(visitor);
          assertTrue(statementList.size() == 1);
          assertEquals(0, visitor.getTables().size());
          assertEquals(1, visitor.getColumns().size());
          assertEquals(1, visitor.getConditions().size());
  
          stmt.replace(stmt.getWhere(), new SQLBinaryOpExpr(new SQLIdentifierExpr("a"),
                  SQLBinaryOperator.Equality,
                  new SQLBigIntExpr(1L)));
  
          stmt.getOrderBy().replace(stmt.getOrderBy().getItems().get(0).getExpr(), new SQLIdentifierExpr("a"));
  
          assertEquals("SHOW QUERY_TASK\n" + "WHERE a = BIGINT '1'\n" + "ORDER BY a DESC\n" + "LIMIT 1", stmt.toString());
      }
  
      public void test_2() throws Exception {
          String sql = "SHOW FULL QUERY_TASK";
  
          SQLStatement stmt = SQLUtils.parseStatements(sql, DbType.mysql).get(0);
  
          String result = SQLUtils.toMySqlString(stmt);
          assertEquals("SHOW FULL QUERY_TASK", result);
  
          SchemaStatVisitor visitor = SQLUtils.createSchemaStatVisitor(DbType.mysql);
          stmt.accept(visitor);
  
          assertEquals(0, visitor.getTables().size());
          assertEquals(0, visitor.getColumns().size());
          assertEquals(0, visitor.getConditions().size());
      }
  
      public void test_3() throws Exception {
          String sql = "SHOW QUERY_TASK for 'userxxx' ";
  
          SQLStatement stmt = SQLUtils.parseStatements(sql, DbType.mysql).get(0);
  
          String result = SQLUtils.toMySqlString(stmt);
          assertEquals("SHOW QUERY_TASK\n" +
                  "FOR 'userxxx'", result);
  
          SchemaStatVisitor visitor = SQLUtils.createSchemaStatVisitor(DbType.mysql);
          stmt.accept(visitor);
  
          assertEquals(0, visitor.getTables().size());
          assertEquals(0, visitor.getColumns().size());
          assertEquals(0, visitor.getConditions().size());
      }
  }
  