content: /*
   * Copyright 1999-2018 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.db2;
  
  import com.alibaba.druid.DbType;
  import com.alibaba.druid.sql.OracleTest;
  import com.alibaba.druid.sql.SQLUtils;
  import com.alibaba.druid.sql.ast.SQLStatement;
  import com.alibaba.druid.sql.dialect.db2.parser.DB2StatementParser;
  import com.alibaba.druid.sql.dialect.db2.visitor.DB2SchemaStatVisitor;
  import com.alibaba.druid.util.JdbcUtils;
  import com.alibaba.druid.util.Utils;
  
  import java.io.InputStream;
  import java.io.InputStreamReader;
  import java.io.Reader;
  import java.util.List;
  
  public class DB2ResourceTest extends OracleTest {
      public void test_0() throws Exception {
          exec_test("bvt/parser/db2-0.txt");
      }
  
      public void exec_test(String resource) throws Exception {
          System.out.println(resource);
          InputStream is = null;
  
          is = Thread.currentThread().getContextClassLoader().getResourceAsStream(resource);
          Reader reader = new InputStreamReader(is, "UTF-8");
          String input = Utils.read(reader);
          JdbcUtils.close(reader);
          String[] items = input.split("---------------------------");
          String sql = items[0].trim();
          String expect = null;
          if (items.length > 1) {
              expect = items[1];
              expect = expect.trim();
              expect = expect.replaceAll("\\r\\n", "\n");
          }
  
          DB2StatementParser parser = new DB2StatementParser(sql);
          List<SQLStatement> statementList = parser.parseStatementList();
  
          // assertEquals(1, statementList.size());
  
          System.out.println(sql);
  
          print(statementList);
  
          DB2SchemaStatVisitor visitor = new DB2SchemaStatVisitor();
  
          for (int i = 0, size = statementList.size(); i < size; ++i) {
              SQLStatement statement = statementList.get(i);
              statement.accept(visitor);
          }
  
          System.out.println("Tables : " + visitor.getTables());
          System.out.println("fields : " + visitor.getColumns());
  
          System.out.println();
          System.out.println();
  
          if (statementList.size() == 1) {
              SQLStatement stmt = statementList.get(0);
              if (expect != null && !expect.isEmpty()) {
                  String actual = stmt.toString();
                  assertEquals(expect, actual.trim());
              }
          } else {
              if (expect != null && !expect.isEmpty()) {
                  assertEquals(expect, SQLUtils.toSQLString(statementList, DbType.oracle));
              }
          }
      }
  }
  