/*
 * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
 * Copyright (C) $$Year-Rel$$ 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 java.util.List;

import org.testng.annotations.Test;

public class ColumnSelectionTest
{

  @Test(groups = { "Functional" })
  public void testAddElement()
  {
    ColumnSelection cs = new ColumnSelection();
    cs.addElement(2);
    cs.addElement(5);
    List<Integer> sel = cs.getSelected();
    assertEquals(2, sel.size());
    assertEquals(new Integer(2), sel.get(0));
    assertEquals(new Integer(5), sel.get(1));
  }

  /**
   * Test the remove method - in particular to verify that remove(int i) removes
   * the element whose value is i, _NOT_ the i'th element.
   */
  @Test(groups = { "Functional" })
  public void testRemoveElement()
  {
    ColumnSelection cs = new ColumnSelection();
    cs.addElement(2);
    cs.addElement(5);

    // removing elements not in the list has no effect
    cs.removeElement(0);
    cs.removeElement(1);
    List<Integer> sel = cs.getSelected();
    assertEquals(2, sel.size());
    assertEquals(new Integer(2), sel.get(0));
    assertEquals(new Integer(5), sel.get(1));

    // removing an element in the list removes it
    cs.removeElement(2);
    assertEquals(1, sel.size());
    assertEquals(new Integer(5), sel.get(0));
  }

  /**
   * Test the method that finds the visible column position of an alignment
   * column, allowing for hidden columns.
   */
  @Test(groups = { "Functional" })
  public void testFindColumnPosition()
  {
    ColumnSelection cs = new ColumnSelection();
    assertEquals(5, cs.findColumnPosition(5));

    // hiding column 6 makes no difference
    cs.hideColumns(6, 6);
    assertEquals(5, cs.findColumnPosition(5));

    // hiding column 5 makes no difference
    cs.hideColumns(5, 5);
    assertEquals(5, cs.findColumnPosition(5));

    // hiding column 4 moves column 5 to column 4
    cs.hideColumns(4, 4);
    assertEquals(4, cs.findColumnPosition(5));

    // hiding columns 1 and 2 moves column 5 to column 2
    cs.hideColumns(1, 2);
    assertEquals(2, cs.findColumnPosition(5));
  }
}