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  package org.apache.cayenne.dbsync.merge.token;
  
  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.Collections;
  import java.util.List;
  
  import org.apache.cayenne.dbsync.merge.token.db.AddColumnToDb;
  import org.apache.cayenne.dbsync.merge.token.db.AddRelationshipToDb;
  import org.apache.cayenne.dbsync.merge.token.db.CreateTableToDb;
  import org.apache.cayenne.dbsync.merge.token.db.DropColumnToDb;
  import org.apache.cayenne.dbsync.merge.token.db.DropRelationshipToDb;
  import org.apache.cayenne.dbsync.merge.token.db.DropTableToDb;
  import org.apache.cayenne.dbsync.merge.token.model.AddColumnToModel;
  import org.apache.cayenne.dbsync.merge.token.model.AddRelationshipToModel;
  import org.apache.cayenne.dbsync.merge.token.model.CreateTableToModel;
  import org.apache.cayenne.dbsync.merge.token.model.DropColumnToModel;
  import org.apache.cayenne.dbsync.merge.token.model.DropRelationshipToModel;
  import org.apache.cayenne.dbsync.merge.token.model.DropTableToModel;
  import org.junit.Before;
  import org.junit.Test;
  
  import static org.junit.Assert.assertEquals;
  
  public class TokenSortTest {
  
      private List<String> toClassesNames(List<MergerToken> sort) {
          List<String> res = new ArrayList<String>(sort.size());
          for (MergerToken mergerToken : sort) {
              res.add(mergerToken.getClass().getSimpleName());
          }
          return res;
      }
  
      @Test
      public void testSortStability() throws Exception {
          List<MergerToken> tokens = Arrays.<MergerToken>asList(
                  new AddRelationshipToModel(null, null),
                  new AddColumnToModel(null, null),
                  new AddColumnToDb(null, null),
                  new CreateTableToModel(null),
                  new DropTableToModel(null),
                  new DropColumnToModel(null, null),
                  new DropRelationshipToModel(null, null)
          );
          Collections.sort(tokens);
          List<String> actual = toClassesNames(tokens);
  
          List<String> expected = Arrays.asList(
                  "DropRelationshipToModel",
                  "DropColumnToModel",
                  "DropTableToModel",
                  "CreateTableToModel",
                  "AddColumnToDb",
                  "AddColumnToModel",
                  "AddRelationshipToModel"
          );
  
          assertEquals(expected, actual);
  
          Collections.sort(tokens);
          actual = toClassesNames(tokens);
          assertEquals(expected, actual);
  
          List<MergerToken> tokens2 = Arrays.<MergerToken>asList(
                  new AddColumnToModel(null, null),
                  new AddRelationshipToModel(null, null),
                  new CreateTableToModel(null),
                  new AddColumnToDb(null, null),
                  new DropColumnToModel(null, null),
                  new DropRelationshipToModel(null, null),
                  new DropTableToModel(null)
          );
          Collections.sort(tokens2);
          actual = toClassesNames(tokens);
          assertEquals(expected, actual);
      }
  
      @Test
      public void testToModelTokensCompare() throws Exception {
          List<MergerToken> tokens = Arrays.<MergerToken>asList(
                  new DropColumnToModel(null, null),
                  new DropRelationshipToModel(null, null),
                  new DropTableToModel(null),
                  new AddColumnToDb(null, null),
                  new AddRelationshipToModel(null, null),
                  new AddColumnToModel(null, null),
                  new CreateTableToModel(null));
          Collections.sort(tokens);
  
          List<String> actual = toClassesNames(tokens);
          List<String> expected = Arrays.asList(
                  "DropRelationshipToModel",
                  "DropColumnToModel",
                  "DropTableToModel",
                  "CreateTableToModel",
                  "AddColumnToDb",
                  "AddColumnToModel",
                  "AddRelationshipToModel"
          );
  
          assertEquals(expected, actual);
      }
  
      @Test
      public void testToDbTokensCompare() throws Exception {
          List<MergerToken> tokens = Arrays.<MergerToken>asList(
                  new DropColumnToDb(null, null),
                  new DropRelationshipToDb(null, null),
                  new DropTableToDb(null),
                  new AddColumnToModel(null, null),
                  new AddRelationshipToDb(null, null),
                  new AddColumnToDb(null, null),
                  new CreateTableToDb(null));
          Collections.sort(tokens);
  
          List<String> actual = toClassesNames(tokens);
          List<String> expected = Arrays.asList(
                  "DropRelationshipToDb",
                  "DropColumnToDb",
                  "DropTableToDb",
                  "CreateTableToDb",
                  "AddColumnToDb",
                  "AddColumnToModel",
                  "AddRelationshipToDb"
          );
  
          assertEquals(expected, actual);
      }
  
  }
  