MolecularFormulaRange implements Cloneable { public int getIsotopeCount() { return isotopesMax.size(); } MolecularFormulaRange(); void addIsotope(IIsotope isotope, int countMin, int countMax); boolean contains(IIsotope isotope); int getIsotopeCountMax(IIsotope isotope); int getIsotopeCountMin(IIsotope isotope); int getIsotopeCount(); Iterable<IIsotope> isotopes(); void removeAllIsotopes(); void removeIsotope(IIsotope isotope); @Override Object clone();  }
@Test public void testGetIsotopeCount() { MolecularFormulaRange mfRange = new MolecularFormulaRange(); Assert.assertEquals(0, mfRange.getIsotopeCount()); }