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.sql;
  
  import com.alibaba.druid.sql.ast.SQLStatement;
  import com.alibaba.druid.sql.dialect.postgresql.parser.PGSQLStatementParser;
  import com.alibaba.druid.sql.dialect.postgresql.visitor.PGOutputVisitor;
  import junit.framework.TestCase;
  import org.junit.Assert;
  
  import java.util.List;
  
  public class PGTest extends TestCase {
      protected String output(List<SQLStatement> stmtList) {
          StringBuilder out = new StringBuilder();
          PGOutputVisitor visitor = new PGOutputVisitor(out);
  
          for (SQLStatement stmt : stmtList) {
              stmt.accept(visitor);
          }
  
          return out.toString();
      }
  
      protected void print(List<SQLStatement> stmtList) {
          String text = output(stmtList);
          String outputProperty = System.getProperty("druid.output");
          if ("false".equals(outputProperty)) {
              return;
          }
          System.out.println(text);
      }
  
      protected void testParseSql(String sql, String expectedSql, String expectedPattern, Class<?> type) {
          PGSQLStatementParser parser = new PGSQLStatementParser(sql);
          List<SQLStatement> statementList = parser.parseStatementList();
          SQLStatement statement = statementList.get(0);
  
          Assert.assertEquals(1, statementList.size());
          Assert.assertTrue(type.isAssignableFrom(statement.getClass()));
  
          StringBuilder sb = new StringBuilder();
          PGOutputVisitor visitor = new PGOutputVisitor(sb);
          statement.accept(visitor);
          Assert.assertEquals(expectedSql, sb.toString());
      }
  }
  