AggregatedStatsModifiers implements HeroStatsModifiers { @Override public int getMobilityPenalty() { int mod = 0; for (HeroStatsModifiers modifier : modifiers) { mod += modifier.getMobilityPenalty(); } return mod; }  @Override int getMobilityPenalty(); void add(HeroStatsModifiers statsModifiers);  }
@Test public void MobilityPenaltDefaultsToZero() throws Exception { assertThat(modifiers.getMobilityPenalty(), is(0)); }