package com.alipay.zdal.test.ut.sqlparser.oracle;

import java.util.List;

import org.junit.Test;

import junit.framework.Assert;
import com.alipay.zdal.parser.sql.ast.SQLStatement;
import com.alipay.zdal.parser.sql.dialect.oracle.parser.OracleStatementParser;
import com.alipay.zdal.parser.sql.dialect.oracle.visitor.OracleSchemaStatVisitor;
import com.alipay.zdal.parser.sql.stat.TableStat;


public class OracleAlterTableTest4   {
@Test
    public void test_0() throws Exception {
        String sql = //
        "ALTER TABLE ws_pledge_contract modify ( reference VARCHAR2(4000) )";

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

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

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

 

        Assert.assertEquals(1, visitor.getTables().size());

        Assert
            .assertTrue(visitor.getTables().containsKey(new TableStat.Name("ws_pledge_contract")));

        Assert.assertEquals(1, visitor.getColumns().size());

        Assert.assertTrue(visitor.getColumns().contains(
            new TableStat.Column("ws_pledge_contract", "reference")));
        // Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("pivot_table", "YEAR")));
        // Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("pivot_table", "order_mode")));
    }
}