content: /*
   * Copyright 2021-2022 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.aliyun.fastmodel.parser.utils;
  
  import java.util.List;
  
  import com.aliyun.fastmodel.core.parser.DomainLanguage;
  import com.aliyun.fastmodel.core.tree.expr.atom.TableOrColumn;
  import com.aliyun.fastmodel.parser.NodeParser;
  import org.junit.Test;
  
  import static org.junit.Assert.assertEquals;
  
  /**
   * Desc:
   *
   * @author panguanjing
   * @date 2020/9/27
   */
  public class ExprUtilsTest {
  
      NodeParser fastModelAntlrParser = new NodeParser();
  
      @Test
      public void testExtract() throws Exception {
          String test = "sum(a + b)";
          List<TableOrColumn> result = fastModelAntlrParser.extract(new DomainLanguage(test));
          assertEquals(result.size(), 2);
      }
  
      @Test
      public void testDotExtract() {
          String test2 = "sum(a.b)";
          DomainLanguage expr = new DomainLanguage(test2);
          List<TableOrColumn> tableOrColumns = fastModelAntlrParser.extract(expr);
          assertEquals(1, tableOrColumns.size());
      }
  
  }
  
  