### Question:
AutoFillerBuilder { public AutoFillerBuilder fill(int... ids) { Precondition.notEmpty(ids, "ids should not be empty"); this.targetIds = CollectionUtils.asList(ids); return this; } AutoFillerBuilder(TargetScreen targetScreen); AutoFillerBuilder fill(int... ids); FillConfig withOptions(FillOption... options); FillConfig withoutOptions();  }### Answer:
@Test(expected = Exception.class) public void empty_fill_rises_exception() { builder.fill(); }