### Question:
IsochronesRequestHandler extends GenericHandler { String convertCalcMethod(IsochronesRequestEnums.CalculationMethod bareCalcMethod) throws ParameterValueException { try { switch (bareCalcMethod) { case CONCAVE_BALLS: return "concaveballs"; case GRID: return "grid"; case FASTISOCHRONE: return "fastisochrone"; default: return "none"; } } catch (Exception ex) { throw new ParameterValueException(IsochronesErrorCodes.INVALID_PARAMETER_VALUE, "calc_method"); } } IsochronesRequestHandler(); void generateIsochronesFromRequest(IsochronesRequest request); IsochroneMapCollection getIsoMaps(); IsochroneRequest getIsochroneRequest();  }### Answer:
@Test public void convertCalcMethod() throws ParameterValueException { String calcMethod = handler.convertCalcMethod(IsochronesRequestEnums.CalculationMethod.CONCAVE_BALLS); Assert.assertEquals("concaveballs", calcMethod); calcMethod = handler.convertCalcMethod(IsochronesRequestEnums.CalculationMethod.GRID); Assert.assertEquals("grid", calcMethod); }