// Path: src/main/java/io/aif/language/token/comparator/ITokenComparator.java
// public interface ITokenComparator {
// 
//   public static ITokenComparator createComposite(final Map<ITokenComparator, Double> comparators) {
//     return new CompositeTokenComparator(comparators);
//   }
// 
//   public static ITokenComparator defaultComparator() {
//     return Type.CHARACTER_DENSITY_COMPARATOR.getInstance();
//   }
// 
//   public Double compare(String left, String right);
// 
//   public static enum Type {
//     SIMPLE_TOKEN_COMPARATOR(new SimpleTokenComparator()),
//     RECURSIVE_SUBSTRING_COMPARATOR(new RecursiveSubstringComparator()),
//     CHARACTER_DENSITY_COMPARATOR(new CharacterDensityTokenComparator()),
//     LEVENSHTEIN_COMPARATOR(new LevenshteinDistanceComparator());
// 
//     private final ITokenComparator instance;
// 
//     private Type(final ITokenComparator instance) {
//       this.instance = instance;
//     }
// 
//     public ITokenComparator getInstance() {
//       return instance;
//     }
//   }
// }


import org.testng.annotations.Test;
import java.util.Arrays;
import java.util.List;
import java.util.Optional;
import io.aif.language.token.comparator.ITokenComparator;
import static org.mockito.Mockito.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertTrue;
package io.aif.language.word.dict;





public class RootTokenExtractorTest {

  @Test(groups = "unit-tests", enabled = false)
  public void testExtractEmptyInput() throws Exception {
    List<String> input = Arrays.asList();
    Optional expected = Optional.empty();

// Path: src/main/java/io/aif/language/token/comparator/ITokenComparator.java
// public interface ITokenComparator {
// 
//   public static ITokenComparator createComposite(final Map<ITokenComparator, Double> comparators) {
//     return new CompositeTokenComparator(comparators);
//   }
// 
//   public static ITokenComparator defaultComparator() {
//     return Type.CHARACTER_DENSITY_COMPARATOR.getInstance();
//   }
// 
//   public Double compare(String left, String right);
// 
//   public static enum Type {
//     SIMPLE_TOKEN_COMPARATOR(new SimpleTokenComparator()),
//     RECURSIVE_SUBSTRING_COMPARATOR(new RecursiveSubstringComparator()),
//     CHARACTER_DENSITY_COMPARATOR(new CharacterDensityTokenComparator()),
//     LEVENSHTEIN_COMPARATOR(new LevenshteinDistanceComparator());
// 
//     private final ITokenComparator instance;
// 
//     private Type(final ITokenComparator instance) {
//       this.instance = instance;
//     }
// 
//     public ITokenComparator getInstance() {
//       return instance;
//     }
//   }
// }


// Path: src/test/unit/java/io/aif/language/word/dict/RootTokenExtractorTest.java
import org.testng.annotations.Test;
import java.util.Arrays;
import java.util.List;
import java.util.Optional;
import io.aif.language.token.comparator.ITokenComparator;
import static org.mockito.Mockito.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertTrue;

package io.aif.language.word.dict;





public class RootTokenExtractorTest {

  @Test(groups = "unit-tests", enabled = false)
  public void testExtractEmptyInput() throws Exception {
    List<String> input = Arrays.asList();
    Optional expected = Optional.empty();

    ITokenComparator mockTokenComparator = mock(ITokenComparator.class);