@Test
public void executeTest_equalSize() {

    BufferedImage img1 = BufferedImageHelper.createSolidImage(new Color(0, 0, 0));
    BufferedImage img2 = BufferedImageHelper.createSolidImage(new Color(0, 0, 0));
    ScaleToNearestFactorPreprocessor pp = new ScaleToNearestFactorPreprocessor(img1, img2, 500);
    pp.process();
    Assert.assertEquals(img1, pp.getResult1());
    Assert.assertEquals(img2, pp.getResult2());
}