@Test
public void addsMouseListener() {

    final AwtDrawableSurface surface = new AwtDrawableSurface();
    final int size = surface.getListeners(MouseListener.class).length;
    surface.mouseReact();
    MatcherAssert.assertThat(
        surface.getListeners(MouseListener.class).length,
        Matchers.greaterThan(size)
    );
}