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;
  
  import java.util.List;
  
  import com.aliyun.fastmodel.parser.StatementSplitter.StatementText;
  import com.google.common.collect.ImmutableSet;
  import com.google.common.collect.Sets;
  import org.antlr.v4.runtime.TokenSource;
  import org.junit.Test;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertTrue;
  
  /**
   * Desc:
   *
   * @author panguanjing
   * @date 2020/12/28
   */
  public class StatementSplitterTest {
  
      @Test
      public void testSplit() {
          StatementSplitter statementSplitter = new StatementSplitter("show tables; show create table a.b;");
          List<StatementText> statements = statementSplitter.getStatements();
          assertEquals(2, statements.size());
      }
  
      @Test
      public void testSplitWithNewDelimiter() {
          StatementSplitter statementSplitter = new StatementSplitter("show tables: show create table a.b:",
              ImmutableSet.of(":"));
          List<StatementText> statements = statementSplitter.getStatements();
          assertEquals(2, statements.size());
      }
  
      @Test
      public void testGetLexer() {
          TokenSource lexer = StatementSplitter.getLexer("show tables;", Sets.newHashSet(";"));
          assertNotNull(lexer);
      }
  
      @Test
      public void testIsEmpty() {
          assertTrue(StatementSplitter.isEmptyStatement(""));
          assertTrue(StatementSplitter.isEmptyStatement(" "));
          assertTrue(StatementSplitter.isEmptyStatement("\t\n "));
          assertTrue(StatementSplitter.isEmptyStatement("/* odps */"));
          assertFalse(StatementSplitter.isEmptyStatement("x"));
      }
  
  }