/*
* $Id$
*
* Copyright 2009 Sun Microsystems, Inc., 4150 Network Circle,
* Santa Clara, California 95054, U.S.A. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.jdesktop.swingx.util;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;
import java.awt.Color;
import org.junit.Test;
/**
* @author Karl George Schaefer
*
*/
@SuppressWarnings("nls")
public class PaintUtilsTest {
@Test
public void testToHexString() {
assertThat(PaintUtils.toHexString(Color.BLACK), is("#000000"));
assertThat(PaintUtils.toHexString(Color.WHITE), is("#ffffff"));
}
@Test
public void testToHexStringWithTransparentColors() {
assertThat(PaintUtils.toHexString(PaintUtils.setAlpha(Color.BLACK, 0)), is("#000000"));
assertThat(PaintUtils.toHexString(PaintUtils.setAlpha(Color.WHITE, 0)), is("#ffffff"));
}
@Test
public void testBlendWith255() {
assertThat(PaintUtils.blend(Color.BLACK, Color.WHITE), is(Color.WHITE));
}
@Test
public void testBlendWithFiftyPercent() {
assertThat(PaintUtils.blend(Color.BLACK, PaintUtils.setAlpha(Color.WHITE, 255 >> 1)),
is(new Color(255 >> 1, 255 >> 1, 255 >> 1)));
}
@Test
public void testBlendWithZero() {
assertThat(PaintUtils.blend(Color.BLACK, PaintUtils.setAlpha(Color.WHITE, 0)), is(Color.BLACK));
}
@Test
public void testBlendWithNullSrc() {
assertThat(PaintUtils.blend(null, Color.WHITE), is(Color.WHITE));
}
@Test
public void testBlendWithNullOver() {
assertThat(PaintUtils.blend(Color.BLACK, null), is(Color.BLACK));
}
}