### Question:
IsochronesRequestHandler extends GenericHandler { TravelRangeType convertRangeType(IsochronesRequestEnums.RangeType rangeType) throws ParameterValueException { TravelRangeType travelRangeType; switch (rangeType) { case DISTANCE: travelRangeType = TravelRangeType.DISTANCE; break; case TIME: travelRangeType = TravelRangeType.TIME; break; default: throw new ParameterValueException(IsochronesErrorCodes.INVALID_PARAMETER_VALUE, IsochronesRequest.PARAM_RANGE_TYPE, rangeType.toString()); } return travelRangeType; } IsochronesRequestHandler(); void generateIsochronesFromRequest(IsochronesRequest request); IsochroneMapCollection getIsoMaps(); IsochroneRequest getIsochroneRequest();  }### Answer:
@Test public void convertRangeType() throws ParameterValueException { TravelRangeType rangeType = handler.convertRangeType(IsochronesRequestEnums.RangeType.DISTANCE); Assert.assertEquals(TravelRangeType.DISTANCE, rangeType); rangeType = handler.convertRangeType(IsochronesRequestEnums.RangeType.TIME); Assert.assertEquals(TravelRangeType.TIME, rangeType); }