### Question:
AbstractGeneticVariant implements GeneticVariant { @Override public final int compareTo(GeneticVariant other) { if (other == null) { return 0; } if (this == other) { return 0; } if (this.equals(other)) { return 0; } if (!this.getSequenceName().equals(other.getSequenceName())) { return chrComparator.compare(this.getSequenceName(), other.getSequenceName()); } else { if (this.getStartPos() != other.getStartPos()) { return this.getStartPos() < other.getStartPos() ? -1 : (this.getStartPos() == other.getStartPos() ? 0 : 1); } else { if (ReadOnlyGeneticVariantTriTyper.class.isInstance(this)) { if (!ReadOnlyGeneticVariantTriTyper.class.isInstance(other)) { return 1; } else { return this.getSampleVariantsProvider().getSampleVariantProviderUniqueId() - other.getSampleVariantsProvider().getSampleVariantProviderUniqueId(); } } if (ReadOnlyGeneticVariantTriTyper.class.isInstance(other)) { return -1; } if (!this.getVariantAlleles().equals(other.getVariantAlleles())) { return this.getVariantAlleles().compareTo(other.getVariantAlleles()); } else { return this.getSampleVariantsProvider().getSampleVariantProviderUniqueId() - other.getSampleVariantsProvider().getSampleVariantProviderUniqueId(); } } } }  @Override final int compareTo(GeneticVariant other); @Override int hashCode(); @Override boolean equals(Object obj); @Override boolean isMapped(); @Override double getCallRate(); @Override double getHwePvalue(); @Override boolean isSnp(); @Override boolean isAtOrGcSnp(); @Override Ld calculateLd(GeneticVariant other); @Override boolean isBiallelic(); @Override boolean hasPhasedGenotypes(); @Override double getMachR2();  }### Answer:
@Test public void compareTo() { assertEquals(variant1.compareTo(variant3) < 0, true); assertEquals(variant3.compareTo(variant1) > 0, true); assertEquals(variant1.compareTo(variant4) < 0, true); assertEquals(variant4.compareTo(variant1) > 0, true); assertEquals(variant3.compareTo(variant4) < 0, true); assertEquals(variant4.compareTo(variant3) > 0, true); assertEquals(variant3.compareTo(variant8) < 0, true); assertEquals(variant8.compareTo(variant3) > 0, true); assertEquals(variant1.compareTo(variant10) < 0, true); assertEquals(variant10.compareTo(variant1) > 0, true); }