/*
 * Jalview - A Sequence Alignment Editor and Viewer (Version 2.9)
 * Copyright (C) 2015 The Jalview Authors
 * 
 * This file is part of Jalview.
 * 
 * Jalview is free software: you can redistribute it and/or
 * modify it under the terms of the GNU General Public License 
 * as published by the Free Software Foundation, either version 3
 * of the License, or (at your option) any later version.
 *  
 * Jalview is distributed in the hope that it will be useful, but 
 * WITHOUT ANY WARRANTY; without even the implied warranty 
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
 * PURPOSE.  See the GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with Jalview.  If not, see <http://www.gnu.org/licenses/>.
 * The Jalview Authors are detailed in the 'AUTHORS' file.
 */
package jalview.datamodel;

import static org.testng.AssertJUnit.assertEquals;
import static org.testng.AssertJUnit.assertFalse;
import static org.testng.AssertJUnit.assertTrue;

import org.testng.annotations.Test;

public class SearchResultsTest
{

  @Test(groups = { "Functional" })
  public void testToString()
  {
    SequenceI seq = new Sequence("", "abcdefghijklm");
    SearchResults sr = new SearchResults();
    sr.addResult(seq, 1, 1);
    assertEquals("0a", sr.toString());
    sr.addResult(seq, 3, 5);
    assertEquals("0a2cde", sr.toString());

    seq = new Sequence("", "pqrstuvwxy");
    sr.addResult(seq, 6, 7);
    assertEquals("0a2cde5uv", sr.toString());
  }

  @Test(groups = { "Functional" })
  public void testGetCharacters()
  {
    SequenceI seq = new Sequence("", "abcdefghijklm");
    SearchResults sr = new SearchResults();
    sr.addResult(seq, 1, 1);
    assertEquals("a", sr.getCharacters());
    sr.addResult(seq, 3, 5);
    assertEquals("acde", sr.getCharacters());

    seq = new Sequence("", "pqrstuvwxy");
    sr.addResult(seq, 6, 7);
    assertEquals("acdeuv", sr.getCharacters());
  }

  @Test(groups = { "Functional" })
  public void testEquals()
  {
    SequenceI seq1 = new Sequence("", "abcdefghijklm");
    SearchResults sr1 = new SearchResults();
    SearchResults sr2 = new SearchResults();

    assertFalse(sr1.equals(null)); // null object
    assertFalse(sr1.equals(seq1)); // wrong type
    assertTrue(sr1.equals(sr1)); // self
    assertTrue(sr1.equals(sr2)); // empty
    assertTrue(sr2.equals(sr1)); // reflexive

    /*
     * only one result is not empty
     */
    sr1.addResult(seq1, 1, 1);
    assertTrue(sr1.equals(sr1));
    assertFalse(sr1.equals(sr2));
    assertFalse(sr2.equals(sr1));

    /*
     * both the same
     */
    sr2.addResult(seq1, 1, 1);
    assertTrue(sr1.equals(sr2));
    assertTrue(sr2.equals(sr1));

    /*
     * both have three matches
     */
    sr1.addResult(seq1, 3, 4);
    sr1.addResult(seq1, 6, 8);
    sr2.addResult(seq1, 3, 4);
    sr2.addResult(seq1, 6, 8);
    assertTrue(sr1.equals(sr1));
    assertTrue(sr2.equals(sr2));
    assertTrue(sr1.equals(sr2));
    assertTrue(sr2.equals(sr1));
  }

  /**
   * Matches that are similar but for distinct sequences are not equal
   */
  @Test(groups = { "Functional" })
  public void testEquals_distinctSequences()
  {
    SequenceI seq1 = new Sequence("", "abcdefghijklm");
    SequenceI seq2 = new Sequence("", "abcdefghijklm");
    SearchResults sr1 = new SearchResults();
    SearchResults sr2 = new SearchResults();

    sr1.addResult(seq1, 1, 1);
    sr2.addResult(seq2, 1, 1);
    assertFalse(sr1.equals(sr2));
    assertFalse(sr2.equals(sr1));
  }

  /**
   * Matches that are the same except for ordering are not equal
   */
  @Test(groups = { "Functional" })
  public void testEquals_orderDiffers()
  {
    SequenceI seq1 = new Sequence("", "abcdefghijklm");
    SearchResults sr1 = new SearchResults();
    SearchResults sr2 = new SearchResults();

    sr1.addResult(seq1, 1, 1);
    sr1.addResult(seq1, 2, 2);
    sr2.addResult(seq1, 2, 2);
    sr2.addResult(seq1, 1, 1);
    assertFalse(sr1.equals(sr2));
    assertFalse(sr2.equals(sr1));
  }

  /**
   * Verify that hashCode matches for equal objects
   */
  @Test(groups = { "Functional" })
  public void testHashcode()
  {
    SequenceI seq1 = new Sequence("", "abcdefghijklm");
    SearchResults sr1 = new SearchResults();
    SearchResults sr2 = new SearchResults();

    /*
     * both empty
     */
    assertEquals(sr1.hashCode(), sr2.hashCode());

    /*
     * both one match
     */
    sr1.addResult(seq1, 1, 1);
    sr2.addResult(seq1, 1, 1);
    assertEquals(sr1.hashCode(), sr2.hashCode());

    /*
     * both three matches
     */
    sr1.addResult(seq1, 3, 4);
    sr1.addResult(seq1, 6, 8);
    sr2.addResult(seq1, 3, 4);
    sr2.addResult(seq1, 6, 8);
    assertEquals(sr1.hashCode(), sr2.hashCode());
  }
}