/*
* 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.alter;
import junit.framework.TestCase;
import org.junit.Assert;
import com.alibaba.druid.sql.SQLUtils;
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.Token;
public class MySqlAlterTableTest_drop_constraint extends TestCase {
public void test_alter_constraint() throws Exception {
String sql = "alter table TUSER drop constraint UK_084c17821a8f47e8b31fbb126b6";
MySqlStatementParser parser = new MySqlStatementParser(sql);
SQLStatement stmt = parser.parseStatementList().get(0);
parser.match(Token.EOF);
MySqlSchemaStatVisitor visitor = new MySqlSchemaStatVisitor();
stmt.accept(visitor);
// System.out.println("Tables : " + visitor.getTables());
// System.out.println("fields : " + visitor.getColumns());
// System.out.println("coditions : " + visitor.getConditions());
// System.out.println("orderBy : " + visitor.getOrderByColumns());
Assert.assertEquals("ALTER TABLE TUSER" + //
"\n\tDROP CONSTRAINT UK_084c17821a8f47e8b31fbb126b6", SQLUtils.toMySqlString(stmt));
Assert.assertEquals("alter table TUSER" + //
"\n\tdrop constraint UK_084c17821a8f47e8b31fbb126b6", SQLUtils.toMySqlString(stmt, SQLUtils.DEFAULT_LCASE_FORMAT_OPTION));
Assert.assertEquals(1, visitor.getTables().size());
Assert.assertEquals(0, visitor.getColumns().size());
}
}