public void testInput() {
WindowPane windowPane = new WindowPane();
windowPane.add(new Label("a label"));
windowPane.setPositionX(TestConstants.EXTENT_100_PX);
windowPane.setPositionY(TestConstants.EXTENT_100_PX);
windowPane.processInput(WindowPane.PROPERTY_POSITION_X, TestConstants.EXTENT_200_PX);
windowPane.processInput(WindowPane.PROPERTY_POSITION_Y, TestConstants.EXTENT_30_PX);
assertEquals(TestConstants.EXTENT_200_PX, windowPane.getPositionX());
assertEquals(TestConstants.EXTENT_30_PX, windowPane.getPositionY());
}