FilterSettingsImpl implements FilterSettings { @Override public boolean removeKnownVariants() { return removeKnownVariants; } private  FilterSettingsImpl(FilterSettingsBuilder builder); static FilterSettingsBuilder builder(); @Override float getMaximumFrequency(); @Override float getMinimumQuality(); @Override GeneticInterval getGeneticInterval(); @Override boolean keepOffTargetVariants(); @Override boolean removeFailedVariants(); @Override boolean removeKnownVariants(); @Override boolean keepNonPathogenicVariants(); @Override Set<String> getGenesToKeep(); @Override ModeOfInheritance getModeOfInheritance(); @Override int hashCode(); @Override boolean equals(Object obj); @Override String toString();  }
@Test public void testRemoveKnownVariants() { boolean removeKnownVariants = true; instance = builder.removeKnownVariants(removeKnownVariants).build(); assertThat(instance.removeKnownVariants(), equalTo(removeKnownVariants)); }