### Question:
EasyPowerMockRulePlugin implements MockspressoPlugin { @Override public Mockspresso.Builder apply(Mockspresso.Builder builder) { return builder.plugin(new EasyPowerMockPlugin()) .outerRule(new PowerMockRule()); }  @Override Mockspresso.Builder apply(Mockspresso.Builder builder);  }### Answer:
@Test public void testConfigInstalled() { replay(mBuilder); Mockspresso.Builder returnedBuilder = mPlugin.apply(mBuilder); verify(mBuilder); assertThat(returnedBuilder) .isNotNull() .isEqualTo(mBuilder); }