### Question:
IsBlankFunction extends AbstractFunction { @Override protected Object execute(List<Object> arguments) { return StringUtils.isBlank((String) arguments.get(0)); }  @Override String name();  }### Answer:
@Test(dataProvider = "isBlankDP") public void isBlank(String input, boolean isBlank) { IsBlankFunction isBlankFunction = new IsBlankFunction(); assertEquals(isBlankFunction.execute(Arrays.asList(input)), isBlank); }