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.h2;
  
  import com.alibaba.druid.sql.ast.SQLStatement;
  import com.alibaba.druid.sql.dialect.h2.parser.H2StatementParser;
  import com.alibaba.druid.sql.dialect.h2.visitor.H2OutputVisitor;
  import com.alibaba.druid.sql.dialect.h2.visitor.H2SchemaStatVisitor;
  import com.alibaba.druid.util.JdbcUtils;
  import com.alibaba.druid.util.Utils;
  import junit.framework.TestCase;
  
  import java.io.InputStream;
  import java.io.InputStreamReader;
  import java.io.Reader;
  import java.util.List;
  
  public class H2ResourceTest extends TestCase {
      public void test_0() throws Exception {
          exec_test("bvt/parser/h2-0.txt");
      }
  
      public void test_1() throws Exception {
          exec_test("bvt/parser/h2-1.txt");
      }
  
      public void test_2() throws Exception {
          exec_test("bvt/parser/h2-2.txt");
      }
  
      public void test_3() throws Exception {
          exec_test("bvt/parser/h2-3.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 = items[1].trim();
          if (expect != null) {
              expect = expect.replaceAll("\\r\\n", "\n");
          }
  
          H2StatementParser parser = new H2StatementParser(sql);
          List<SQLStatement> statementList = parser.parseStatementList();
          SQLStatement stmt = statementList.get(0);
          System.out.println(stmt.toString());
  
          assertEquals(1, statementList.size());
  
          H2SchemaStatVisitor visitor = new H2SchemaStatVisitor();
          stmt.accept(visitor);
  
          System.out.println(sql);
          System.out.println("Tables : " + visitor.getTables());
          System.out.println("fields : " + visitor.getColumns());
          System.out.println("conditions : " + visitor.getConditions());
  
          System.out.println();
          System.out.println();
  
          if (expect != null && !expect.isEmpty()) {
              assertEquals(expect, stmt.toString());
          }
      }
  
      void mergValidate(String sql, String expect) {
          H2StatementParser parser = new H2StatementParser(sql);
          List<SQLStatement> statementList = parser.parseStatementList();
          SQLStatement stmt = statementList.get(0);
  
          assertEquals(1, statementList.size());
  
          StringBuilder out = new StringBuilder();
          H2OutputVisitor visitor = new H2OutputVisitor(out);
          stmt.accept(visitor);
  
          System.out.println(out.toString());
  
          assertEquals(expect, out.toString());
      }
  }
  