int height = Window.getClientHeight();
int scaledWidth = (int) (0.10 * (double) width);
int scaledHeight = (int) (0.20 * (double) height);
ConcreteModuleTabPanelView view = new ConcreteModuleTabPanelView();
TabPanelResizeHandler handler = new TabPanelResizeHandler(view, 10.0, 20.0);
assertNotNull(handler);
assertSame(view, handler.getView());
assertEquals(10.0, handler.getWidthScaling());
assertEquals(20.0, handler.getHeightScaling());
assertTrue(view.getOffsetWidth() >= scaledWidth); // can't get back the "real" width
assertTrue(view.getOffsetHeight() >= scaledHeight); // can't get back the "real" height
}