private void assertThatDateIsConvertedWithFormat(
     final ParameterConverters parameterConverters, final DateFormat dateFormat) {
   final String date = "2010-10-10";
   try {
     assertThat(
         (Date) parameterConverters.convert(date, Date.class), equalTo(dateFormat.parse(date)));
   } catch (final ParseException e) {
     Assert.fail();
   }
 }
 private void assertThatCustomObjectIsConverted(final ParameterConverters parameterConverters) {
   assertThat(
       ((CustomObject) parameterConverters.convert("value", CustomObject.class)).toString(),
       equalTo(new CustomObject("value").toString()));
 }