### Question:
GasteigerMarsiliPartialCharges implements IChargeCalculator { public int getStepSize() { return STEP_SIZE; } GasteigerMarsiliPartialCharges(); void setChiCatHydrogen(double chiCat); void setMaxGasteigerDamp(double damp); void setMaxGasteigerIters(double iters); double getChiCatHydrogen(); double getMaxGasteigerDamp(); double getMaxGasteigerIters(); IAtomContainer assignGasteigerMarsiliSigmaPartialCharges(IAtomContainer ac, boolean setCharge); @Override void calculateCharges(IAtomContainer container); int getStepSize(); void setStepSize(int step); double[] assignGasteigerSigmaMarsiliFactors(IAtomContainer ac);  }### Answer:
@Test public void testGetStepSize() throws Exception { GasteigerMarsiliPartialCharges peoe = new GasteigerMarsiliPartialCharges(); Assert.assertEquals(5, peoe.getStepSize()); }