/*
 * 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.sql.MysqlTest;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor;
import com.alibaba.druid.sql.parser.SQLParserFeature;

import java.util.List;

public class MySqlShowTest_32_hints extends MysqlTest {
    public void test_0() throws Exception {
        String sql = "/* +TDDL:scan()*/show index from drds_shard;";

        MySqlStatementParser parser = new MySqlStatementParser(sql, SQLParserFeature.TDDLHint);
        List<SQLStatement> statementList = parser.parseStatementList();
        SQLStatement stmt = statementList.get(0);

        assertEquals(1, statementList.size());

        MySqlSchemaStatVisitor visitor = new MySqlSchemaStatVisitor();
        stmt.accept(visitor);

        assertEquals(1, visitor.getTables().size());
        assertEquals(0, visitor.getColumns().size());
        assertEquals(0, visitor.getConditions().size());
        assertEquals(0, visitor.getOrderByColumns().size());

        // assertTrue(visitor.getTables().containsKey(new TableStat.Name("mytable")));

        assertEquals("/*+TDDL:scan()*/\n" +
                "SHOW INDEX FROM drds_shard;", stmt.toString());
        assertEquals("/*+TDDL:scan()*/\n" +
                "show index from drds_shard;", stmt.toLowerCaseString());
    }
}
