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.*;
  import static org.junit.Assert.*;
  
  import java.util.HashSet;
  import java.util.LinkedHashMap;
  import java.util.Set;
  
  import org.apache.asterix.lexergenerator.rules.RuleEpsilon;
  import org.apache.asterix.lexergenerator.rules.RulePartial;
  import org.junit.Test;
  
  public class LexerNodeAuxFunctionsTest {
      String expectedDifferentReturn = "return TOKEN_AUX_NOT_FOUND;\n";
  
      @Test
      public void NodeRuleRuleNodeNode() {
          LexerNode node = new LexerNode();
          node.append(rule);
          node.add(rule2);
          node.appendTokenName(token_name);
          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" + token_return + "}" + expectedDifferentReturn, node.toJavaAuxFunction());
      }
  
      @Test
      public void NodeSwitchCase() {
          LexerNode node = new LexerNode();
          node.append(ruleA);
          node.add(ruleB);
          node.add(ruleC);
          node.appendTokenName(token_name);
          assertEquals(" ( a" + token_tostring + " || b" + token_tostring + " || c" + token_tostring + " ) ",
                  node.toString());
          assertEquals("switch(currentChar){\n" + "case 'a':" + "\n" + ruleABC_action + "\n" + token_return + "case 'b':"
                  + "\n" + ruleABC_action + "\n" + token_return + "case 'c':" + "\n" + ruleABC_action + "\n"
                  + token_return + "}\n" + expectedDifferentReturn, node.toJavaAuxFunction());
      }
  
      @Test
      public void NodeNeededAuxFunctions() {
          LexerNode node = new LexerNode();
          node.append(ruleA);
          node.add(new RulePartial("token1"));
          node.append(ruleC);
          node.append(new RulePartial("token2"));
          node.appendTokenName(token_name);
          assertEquals(" ( actoken2!  || token1ctoken2!  ) ", node.toString());
          Set<String> expectedNeededAuxFunctions = new HashSet<String>();
          expectedNeededAuxFunctions.add("token1");
          expectedNeededAuxFunctions.add("token2");
          assertEquals(expectedNeededAuxFunctions, node.neededAuxFunctions());
      }
  
      @Test(expected = Exception.class)
      public void NodeExpandFirstActionError() throws Exception {
          LexerNode node = new LexerNode();
          node.append(ruleA);
          node.add(new RulePartial("token1"));
          node.append(ruleC);
          node.add(new RuleEpsilon());
          node.append(new RulePartial("token2"));
          node.appendTokenName(token_name);
          assertEquals(" ( actoken2!  || token1ctoken2!  || token2!  ) ", node.toString());
          LinkedHashMap<String, Token> tokens = new LinkedHashMap<String, Token>();
          try {
              node.expandFirstAction(tokens);
          } catch (Exception e) {
              assertEquals("Cannot find a token used as part of another definition, missing token: token1",
                      e.getMessage());
              throw e;
          }
      }
  
      public void NodeExpandFirstAction() throws Exception {
          LexerNode node = new LexerNode();
          node.append(ruleA);
          node.add(new RulePartial("token1"));
          node.append(ruleC);
          node.add(new RuleEpsilon());
          node.append(new RulePartial("token2"));
          node.appendTokenName(token_name);
          assertEquals(" ( actoken2!  || token1ctoken2!  || token2!  ) ", node.toString());
          LinkedHashMap<String, Token> tokens = new LinkedHashMap<String, Token>();
          Token a = new Token("token1 = string(T1-blabla)", tokens);
          Token b = new Token("token1 = string(T1-blabla)", tokens);
          tokens.put("token1", a);
          tokens.put("token2", b);
          node.expandFirstAction(tokens);
          assertEquals(" ( actoken2!  || T1-blablactoken2!  || T2-blabla!  ) ", node.toString());
      }
  }
  