/*
 * 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.postgresql;

import java.util.List;

import org.junit.Assert;

import com.alibaba.druid.sql.PGTest;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.dialect.postgresql.parser.PGSQLStatementParser;
import com.alibaba.druid.sql.dialect.postgresql.visitor.PGSchemaStatVisitor;
import com.alibaba.druid.stat.TableStat;

public class PGAlterTableTest3 extends PGTest {

    public void test_0() throws Exception {
        String sql = "ALTER TABLE issues "//
                + "ADD COLUMN issue_creation_date_ms BIGINT NULL, "//
                + "ADD COLUMN issue_update_date_ms BIGINT NULL, "//
                + "ADD COLUMN issue_close_date_ms BIGINT NULL, "//
                + "ADD COLUMN tags VARCHAR (4000) NULL, "//
                + "ADD COLUMN component_uuid VARCHAR (50) NULL, "//
                + "ADD COLUMN project_uuid VARCHAR (50) NULL";

        PGSQLStatementParser parser = new PGSQLStatementParser(sql);
        List<SQLStatement> statementList = parser.parseStatementList();
        SQLStatement statemen = statementList.get(0);
//        print(statementList);

        Assert.assertEquals(1, statementList.size());

        PGSchemaStatVisitor visitor = new PGSchemaStatVisitor();
        statemen.accept(visitor);

//        System.out.println("Tables : " + visitor.getTables());
//        System.out.println("fields : " + visitor.getColumns());

        Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("issues")));
        
        Assert.assertTrue(visitor.getTables().get(new TableStat.Name("issues")).getAlterCount() == 1);

        Assert.assertEquals(visitor.getColumns().size(), 6);
    }

   
}