### Question:
AvailableValuesProvider { public static List<Boolean> booleanWrapperToValues() { return Arrays.asList(null, Boolean.TRUE, Boolean.FALSE); } private  AvailableValuesProvider(); static List<T> enumToValues(Class<T> valueClass, boolean inclNull); static List<Boolean> booleanWrapperToValues(); static List<Object> booleanPrimitiveToValues();  }### Answer:
@Test public void testBooleanToValues() { assertThat(AvailableValuesProvider.booleanWrapperToValues().size(), is(3)); }