content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 org.apache.asterix.lexergenerator;
  
  import static org.apache.asterix.lexergenerator.Fixtures.rule;
  import static org.apache.asterix.lexergenerator.Fixtures.rule2;
  import static org.apache.asterix.lexergenerator.Fixtures.rule2_action;
  import static org.apache.asterix.lexergenerator.Fixtures.rule2_match;
  import static org.apache.asterix.lexergenerator.Fixtures.rule2_name;
  import static org.apache.asterix.lexergenerator.Fixtures.rule_action;
  import static org.apache.asterix.lexergenerator.Fixtures.rule_match;
  import static org.apache.asterix.lexergenerator.Fixtures.rule_name;
  import static org.apache.asterix.lexergenerator.Fixtures.token2_name;
  import static org.apache.asterix.lexergenerator.Fixtures.token2_return;
  import static org.apache.asterix.lexergenerator.Fixtures.token_name;
  import static org.apache.asterix.lexergenerator.Fixtures.token_return;
  import static org.apache.asterix.lexergenerator.Fixtures.token_tostring;
  import static org.junit.Assert.assertEquals;
  
  import org.junit.Test;
  
  public class LexerNodeMergeNodeTest {
  
      @Test
      public void MergeIsAdd() throws Exception {
          LexerNode node = new LexerNode();
          node.append(rule);
          LexerNode node2 = new LexerNode();
          node2.append(rule2);
          node2.append(rule);
          node2.merge(node);
          node2.appendTokenName(token_name);
  
          LexerNode expected = new LexerNode();
          expected.append(rule2);
          expected.append(rule);
          expected.add(rule);
          expected.appendTokenName(token_name);
  
          assertEquals(expected.toString(), node2.toString());
          assertEquals(expected.toJava(), node2.toJava());
      }
  
      @Test
      public void MergeTwoToken() throws Exception {
          LexerNode node = new LexerNode();
          node.append(rule);
          node.appendTokenName(token_name);
          LexerNode node2 = new LexerNode();
          node2.append(rule2);
          node2.appendTokenName(token2_name);
          node.merge(node2);
  
          assertEquals(" ( " + rule_name + token_tostring + " || " + rule2_name + token_tostring + " ) ",
                  node.toString());
          assertEquals(
                  rule_match + "{" + "\n" + rule_action + "\n" + token_return + "}" + rule2_match + "{" + "\n"
                          + rule2_action + "\n" + token2_return + "}return parseError(TOKEN_MYTOKEN,TOKEN_MYTOKEN2);\n",
                  node.toJava());
      }
  
      @Test(expected = Exception.class)
      public void MergeConflict() throws Exception {
          LexerNode node = new LexerNode();
          node.append(rule);
          node.appendTokenName(token_name);
          LexerNode node2 = new LexerNode();
          node2.append(rule);
          node2.appendTokenName(token2_name);
          try {
              node.merge(node2);
          } catch (Exception e) {
              assertEquals("Rule conflict between: " + token_name + " and " + token2_name, e.getMessage());
              throw e;
          }
      }
  
      @Test
      public void MergeWithoutConflictWithRemoveTokensName() throws Exception {
          LexerNode node = new LexerNode();
          node.append(rule);
          node.append(rule);
          node.appendTokenName(token_name);
          LexerNode node2 = new LexerNode();
          node2.append(rule);
          node2.append(rule);
          node2.appendTokenName(token2_name);
          node2.removeTokensName();
          node.merge(node2);
          assertEquals(rule_name + rule_name + token_tostring, node.toString());
      }
  }
  